CN116377511A - Self-adaptive gas production regulation control system of hydrogen production device - Google Patents
Self-adaptive gas production regulation control system of hydrogen production device Download PDFInfo
- Publication number
- CN116377511A CN116377511A CN202310229580.0A CN202310229580A CN116377511A CN 116377511 A CN116377511 A CN 116377511A CN 202310229580 A CN202310229580 A CN 202310229580A CN 116377511 A CN116377511 A CN 116377511A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- gas
- module
- oxygen
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 239000001257 hydrogen Substances 0.000 title claims abstract description 143
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 143
- 239000007789 gas Substances 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- 239000003513 alkali Substances 0.000 claims abstract description 78
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000001301 oxygen Substances 0.000 claims abstract description 77
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 77
- 239000007788 liquid Substances 0.000 claims abstract description 64
- 230000001105 regulatory effect Effects 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 22
- 238000000746 purification Methods 0.000 claims abstract description 17
- 238000005868 electrolysis reaction Methods 0.000 claims description 27
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 9
- 229910001882 dioxygen Inorganic materials 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- -1 secondly Chemical compound 0.000 claims 1
- 230000003044 adaptive effect Effects 0.000 claims 1
- 239000002585 base Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
- C25B15/023—Measuring, analysing or testing during electrolytic production
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
- C25B15/023—Measuring, analysing or testing during electrolytic production
- C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
The invention relates to a self-adaptive gas production regulation control system of a hydrogen production device, which comprises a rectifying module, an electrolytic tank, a hydrogen gas-alkali separator, an oxygen flow control regulating valve, a hydrogen consumption control regulating valve, a gas purification module, a hydrogen storage tank, an oxygen pipeline switch valve and a PLC control module. The device has the advantages that the device is ingenious in design, reasonable and compact in structure and quick in signal feedback, the problem of fluctuation of the system pressure at the hydrogen production side of hydrogen is solved, the problem of the fluctuation of the hydrogen quantity at the hydrogen production side is solved, and the problem of the fluctuation of the hydrogen quantity at the hydrogen production side is solved; the PLC control module can send out instructions to the oxygen flow control regulating valve to regulate the size and the size, so that the liquid level meters on two sides are balanced, the problem that the liquid level of the alkali liquor on one side disappears is avoided, and the normal operation of the system is ensured, and the system is safe and reliable.
Description
Technical Field
The invention relates to the technical field of new energy, in particular to a self-adaptive gas production regulation control system of a hydrogen production device.
Background
The hydrogen as the energy storage carrier has the advantages of light weight, high energy density and no emission to the environment during use. The existing hydrogen production technology mainly comprises two main types of hydrogen production by fossil fuel and water electrolysis. The hydrogen is prepared by water electrolysis, the high-purity hydrogen is obtained by water electrolysis, the technology is mature, the purity of the purified hydrogen can reach 99.9999 percent, the purity of the purified hydrogen is higher than that of hydrogen prepared by other hydrogen preparation modes by one order of magnitude, and the purified hydrogen does not contain carbon element impurities. Today, the sustainable development of new energy is advocated by the nation, and the hydrogen production by water electrolysis meets a new development opportunity.
However, the existing basic water electrolysis hydrogen production equipment still has the following disadvantages:
the first and the traditional water electrolysis hydrogen production equipment take a hydrogen flow regulating valve as an independent pressure balance control module, so that the hydrogen flow regulating valve and the whole system cannot be connected together, and the problems of low feedback speed and low regulating speed are easily caused;
secondly, the existing equipment produced by enterprises is rigid and fixed in yield, cannot be flexibly adjusted according to the needs of factories, the system is slow and rigid in self-reaction, can only stop after small problems occur, cannot maintain certain balance, not to mention adjusting according to the use amount of users, and is extremely easy to cause waste or deficiency of productivity;
thirdly, the design of the existing equipment in the market all adopts the way of controlling the output of the regulating valve to achieve the balance of the liquid level in the gas-alkali separator and the balance of the pressure in the equipment system, however, in actual operation, once the valve is damaged or the operation of workers is wrong, the electrolytic tank still continues to produce hydrogen, or the PLC terminal controls the flux of the regulating valve to regulate the pressure, under the condition, the hydrogen still continues to leak, and serious safety accidents are easily caused.
Disclosure of Invention
In order to solve the technical problems, the invention provides a self-adaptive gas production regulation control system of a hydrogen production device, which is ingenious in design, reasonable and compact in system, and can adjust the gas production of the system in real time by adapting to the gas consumption of a user.
The technical scheme of the invention is as follows:
the self-adaptive gas production regulation control system of the hydrogen production device comprises a rectification module, an electrolytic tank, a hydrogen gas-alkali separator, an oxygen flow control regulating valve, a hydrogen consumption control regulating valve, a gas purification module, a hydrogen storage tank, an oxygen pipeline switch valve and a PLC control module, wherein the rectification module is electrically connected with the electrolytic tank, the gas inlet end of the oxygen gas-alkali separator is communicated with the oxygen output end of the electrolytic tank, the gas outlet end of the oxygen gas-alkali separator is communicated with the gas inlet end of the oxygen flow control regulating valve, and the oxygen pipeline switch valve is arranged at the gas outlet end of the oxygen flow control regulating valve; the hydrogen output end of the electrolytic tank is communicated with the air inlet end of the hydrogen gas-alkali separator, the air outlet end of the hydrogen gas-alkali separator is communicated with the air inlet end of the gas purification module, the air outlet end of the gas purification module is communicated with the air inlet end of the hydrogen storage tank, the air outlet end of the hydrogen storage tank is communicated with the air inlet end of the hydrogen consumption control regulating valve, the upper end of the hydrogen storage tank is provided with a pressure module, and the PLC control module is respectively electrically connected with the rectifying module, the oxygen flow control regulating valve and the pressure module.
A first liquid level meter is arranged in the hydrogen gas-alkali separator; the second liquid level meter is arranged in the oxygen gas-alkali separator, and the hydrogen gas-alkali separator is communicated with the lower end of the oxygen gas-alkali separator through a liquid U-shaped pipe; the PLC control module is electrically connected with the first liquid level meter and the second liquid level meter respectively.
The application method of the self-adaptive gas production regulation control system of the hydrogen production device,
firstly, the PLC control module reads the pressure signal of the pressure module at the upper end of the hydrogen storage tank, when the pressure value is smaller than a set value, the PLC control module sends out a command to the rectifying module, the rectifying module controls the electrolytic tank to generate hydrogen and oxygen,
secondly, hydrogen in the electrolytic tank firstly enters a hydrogen gas-alkali separator for gas-liquid separation after being generated, hydrogen enters a gas purification module for purification and is then sent into a hydrogen storage tank, meanwhile, oxygen in the electrolytic tank firstly enters an oxygen gas-alkali separator for gas-liquid separation after being generated, oxygen is discharged through an oxygen flow control regulating valve, and an oxygen pipeline switch valve is normally opened during electrolysis;
thirdly, when the PLC control module receives that the signal pressure value is lower than a set value, the PLC control module sends a full-load operation instruction to the rectification module, and the rectification module adjusts electrolysis current according to the full-load current to control the increase of the electrolysis gas production of the electrolytic cell; when the hydrogen consumption control regulating valve is opened for supplying hydrogen for the hydrogen equipment, the pressure module transmits a pressure signal to the PLC control module at all times, when the PLC control module receives that the signal pressure value is close to a set value, the PLC control module sends a proper electrolysis current instruction to the rectification module through PID calculation, the rectification module regulates the electrolysis current according to the electrolysis current given by the PLC, controls the electrolysis tank to increase or decrease the electrolysis gas yield, and ensures that the pressure of the hydrogen storage tank is maintained at the set value; ensuring the balance of gas production and gas consumption;
fourth, hydrogen gas alkali separator lower extreme and oxygen gas alkali separator's lower extreme pass through liquid U type pipe UNICOM, when the pressure of hydrogen output one side is along with the continuous no ration output of hydrogen, when hydrogen gas alkali separator's one side pressure and oxygen gas alkali separator's one side pressure are different, hydrogen gas alkali separator's first level gauge and oxygen gas alkali separator's second level gauge transmit the detection value and give PLC control module, PLC control module then judges according to the numerical value that accepts first level gauge and second level gauge, and send corresponding instruction for oxygen flow control governing valve regulation oxygen exhaust size, ensure that the feedback numerical value of first level gauge and second level gauge is the same, will not take place that one side pressure is too high and lead to the problem of linking up with, safe and reliable.
The invention has the advantages of ingenious design, reasonable and compact structure and quick signal feedback, can meet the requirement of the hydrogen quantity at the hydrogen use end for the non-quantitative use, directly feeds back the pressure to the PLC control module through the pressure module, directly sends out a command to the rectification module, and the rectification module timely adjusts the electrolytic current to adjust the pressure fluctuation problem of the system at the hydrogen production side of the hydrogen, and simultaneously meets the requirement of the non-quantitative use; because the hydrogen usage amount at one side of the hydrogen usage is not quantitative, fluctuation of the pressure part of the system at the hydrogen production side can lead to uneven alkali liquor level in the hydrogen gas-alkali separator and the oxygen gas-alkali separator, even the liquid level at one side disappears, all the liquid level is pressed into an alkali liquor return pipeline by the excessively high pressure gas, the gas possibly enters the electrolytic tank, the oxyhydrogen gas in the electrolytic tank is mixed, explosion risks are very easy to occur, the invention provides the alkali liquor of the hydrogen gas-alkali separator and the oxygen gas-alkali separator which are communicated by adding a liquid U-shaped pipe at the lower end of the hydrogen gas-alkali separator for solving the risk, the liquid level of the hydrogen gas-alkali separator and the oxygen gas-alkali separator is balanced by the liquid U-shaped pipe, the liquid level of alkali liquor at the two sides of the hydrogen gas-alkali separator and the oxygen gas-alkali separator is respectively detected by respectively designing independent liquid level meters at the two sides, the liquid level meter feeds back the liquid level to a PLC control module during liquid level timing, once the PLC control module receives the feedback liquid level imbalance, the liquid level meter gives an instruction to an oxygen flow control regulating valve for regulating the liquid level, so that the liquid level at the two sides is balanced, the liquid level meter is not to cause the alkali liquor level loss at the two sides to be balanced, the two sides, the alkali liquor level is ensured to be normal, and the liquid level is ensured to be balanced, the liquid level is not to disappear, and the problem is safe.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Description of the embodiments
Referring to fig. 1, a self-adaptive gas production regulation control system of a hydrogen production device comprises a rectification module 1, an electrolytic tank 2, a hydrogen gas-alkali separator 3, an oxygen gas-alkali separator 4, an oxygen flow control regulating valve 5, a hydrogen consumption control regulating valve 6, a gas purification module 7, a hydrogen storage tank 8, an oxygen pipeline switch valve 9 and a PLC control module 10, wherein the rectification module 1 is electrically connected with the electrolytic tank 2, the gas inlet end of the oxygen gas-alkali separator 4 is communicated with the oxygen output end of the electrolytic tank 2, the gas outlet end of the oxygen gas-alkali separator 4 is communicated with the gas inlet end of the oxygen flow control regulating valve 5, and the gas outlet end of the oxygen flow control regulating valve 5 is provided with the oxygen pipeline switch valve 9; the hydrogen output end of the electrolytic tank 2 is communicated with the air inlet end of the hydrogen gas-alkali separator 3, the air outlet end of the hydrogen gas-alkali separator 3 is communicated with the air inlet end of the gas purification module 7, the air outlet end of the gas purification module 7 is communicated with the air inlet end of the hydrogen storage tank 8, the air outlet end of the hydrogen storage tank 8 is communicated with the air inlet end of the hydrogen consumption control regulating valve 6, the upper end of the hydrogen storage tank 8 is provided with a pressure module 11, and the PLC control module 10 is electrically connected with the rectifying module 1, the oxygen flow control regulating valve 5 and the pressure module 11 respectively. The oxygen pipeline switch valve 9 is normally opened when working, the gas purification module is in the prior art, and the invention is simply introduced. The outlet of the hydrogen gas consumption control regulating valve 6 is connected with a hydrogen device.
The hydrogen gas alkali separator 3 is internally provided with a first liquid level meter 12; the second liquid level meter 13 is arranged in the oxygen gas-alkali separator 4, and the lower ends of the hydrogen gas-alkali separator 3 and the oxygen gas-alkali separator 4 are communicated through the liquid U-shaped pipe 14; the PLC control module 10 is electrically connected with the first liquid level meter 12 and the second liquid level meter 13 respectively.
The application method of the self-adaptive gas production regulation control system of the hydrogen production device,
firstly, the PLC control module 10 sends out instructions to the rectification module 1, the rectification module 1 controls the electrolytic tank 2 to generate hydrogen and oxygen,
secondly, hydrogen in the electrolytic tank 2 firstly enters the hydrogen gas-alkali separator 3 for gas-liquid separation after being generated, hydrogen enters the gas purification module 7 for purification and then enters the hydrogen storage tank 8, meanwhile, oxygen in the electrolytic tank 2 firstly enters the oxygen gas-alkali separator 4 for gas-liquid separation after being generated, oxygen is discharged through the oxygen flow control regulating valve 5, and the oxygen pipeline switch valve 9 is normally opened during electrolysis;
thirdly, hydrogen is normally stored in the hydrogen storage tank, a pressure module 11 (a pressure sensor can be adopted) at the upper end of the hydrogen storage tank monitors the hydrogen pressure to reach a set value, the pressure module 11 transmits a signal to a PLC control module 10, the PLC control module 10 gives a signal instruction to a rectifying module 1, and the rectifying module 1 controls an electrolytic cell 2 to stop electrolytic reaction; the gas outlet end of the hydrogen consumption control regulating valve 6 is opened, the pressure module 11 transmits pressure signals to the PLC control module 10 at all times, when the PLC control module 10 receives that the signal pressure value is higher than a set value, the PLC control module 10 sends a command to the rectifying module 1, the rectifying module 1 reduces electrolysis current, and the electrolysis gas yield of the electrolytic tank 2 is controlled to be reduced; when the PLC control module 10 receives that the signal pressure value is lower than the set value, the PLC control module 10 sends a command to the rectification module 1, the rectification module 1 increases the electrolysis current, and the electrolysis gas production of the electrolytic tank 2 is controlled to increase; the requirement of gas equipment at the gas outlet end of the hydrogen consumption control regulating valve 6 is met in the mode, and the system is automatically adapted to gas production regulation;
fourth, the lower extreme of hydrogen gas alkali separator 3 and the lower extreme of oxygen gas alkali separator 4 are through liquid U type pipe 14 UNICOM, when the pressure of hydrogen output one side is with the continuous no ration output of hydrogen, when the pressure of one side of hydrogen gas alkali separator 3 and one side of oxygen gas alkali separator 4 are different, the first liquid level meter 12 of hydrogen gas alkali separator 3 and the second liquid level meter 13 of oxygen gas alkali separator 4 transmit the detection value to PLC control module 10, PLC control module 10 then judges according to the numerical value that accepts first liquid level meter 12 and second liquid level meter 13, and send corresponding instruction for oxygen flow control governing valve 5 adjusts the size of oxygen discharge, ensure that the feedback numerical value of first liquid level meter 12 and second liquid level meter 13 is the same, the too high problem of gas that passes through liquid U type pipe 14 of one side pressure just can not take place, safety and reliability.
When the invention is used, two technical problems to be solved are that in the prior art, the current of the electrolytic tank 2 is constant, the hydrogen production amount is constant, the system gas production amount is unchanged, the pressure balance of the system can be kept only by using gas continuously on the hydrogen side, once the gas consumption amount on the hydrogen side is less, the system pressure exceeds the standard, the operations such as stopping gas production of the electrolytic tank 2, opening an emptying valve and the like are needed, and the system pressure can be regulated to be below a safety index only for a long time. According to the invention, the pressure change of the hydrogen side system is fed back to the PLC control module 10 through the pressure module 11 according to the gas consumption change of the hydrogen side, and the PLC control module 10 controls the rectifying module 1 to change the current, so that the gas yield of the electrolytic tank 2 is controlled, and the reaction is rapid, safe and reliable. The opening degree of the hydrogen consumption control regulating valve can be arbitrarily increased according to the requirement, so that the application requirement is met. The hydrogen side pressure monitoring system can meet the hydrogen side pressure monitoring requirement by only one pressure module.
Secondly, because the pressure of the hydrogen side is continuously changed along with the gas consumption, the pressure of a hydrogen side system is continuously changed, at the moment, the technical problem exists that the pressure of the hydrogen side is low, the pressure of the oxygen side is high, the liquid separated from the inside of the hydrogen gas-base separator 3 and the oxygen gas-base separator 4 is conveyed into the electrolytic tank 2 for recycling after being subjected to reflux treatment, if the pressure of one side is too high, the gas and the liquid in the hydrogen gas-base separator 3 or the oxygen gas-base separator 4 are reversely pressed into the other side, so that hydrogen and oxygen are mixed, explosion risks are easily generated, and the inside of the hydrogen gas-base separator 3 or the oxygen gas-base separator 4 is required to be provided with a liquid back cover, so that the gas is ensured not to reversely cross gas, and the production is safe and reliable; the invention adopts the U-shaped pipe to communicate the lower ends of the hydrogen gas-alkali separator 3 and the oxygen gas-alkali separator 4, so that the liquids in the two liquid level meters are communicated, the two liquid level meters are assisted to respectively detect the internal liquid levels of the hydrogen gas-alkali separator 3 and the oxygen gas-alkali separator 4 at the moment, once the two liquid level meters are different in height due to the change of the hydrogen side pressure, the pressure is unbalanced, the liquid level meters at the two sides transmit the signals of the detected liquid level to the PLC control module 10, the PLC control module 10 sends instructions to the oxygen flow control regulating valve 5 to regulate the oxygen discharge flow, thereby ensuring that the liquid level meters at the two sides have almost the same detection height, so that the problem that the gas is in the electrolytic tank 2 along an alkali liquid return pipeline due to the fact that the pressure at one side is too high is avoided, and the problem that no alkali liquid exists in the hydrogen gas-alkali separator 3 and the oxygen gas-alkali separator 4 ensures the gas safety of the whole system.
Claims (3)
1. The self-adaptive gas production regulation control system of the hydrogen production device is characterized by comprising a rectifying module, an electrolytic tank, a hydrogen gas-alkali separator, an oxygen flow control regulating valve, a hydrogen consumption control regulating valve, a gas purification module, a hydrogen storage tank, an oxygen pipeline switching valve and a PLC control module, wherein the rectifying module is electrically connected with the electrolytic tank, the gas inlet end of the oxygen gas-alkali separator is communicated with the oxygen output end of the electrolytic tank, the gas outlet end of the oxygen gas-alkali separator is communicated with the gas inlet end of the oxygen flow control regulating valve, and the oxygen pipeline switching valve is arranged at the gas outlet end of the oxygen flow control regulating valve; the hydrogen output end of the electrolytic tank is communicated with the air inlet end of the hydrogen gas-alkali separator, the air outlet end of the hydrogen gas-alkali separator is communicated with the air inlet end of the gas purification module, the air outlet end of the gas purification module is communicated with the air inlet end of the hydrogen storage tank, the air outlet end of the hydrogen storage tank is communicated with the air inlet end of the hydrogen consumption control regulating valve, the upper end of the hydrogen storage tank is provided with a pressure module,
the PLC control module is electrically connected with the rectifying module, the oxygen flow control regulating valve and the pressure module respectively.
2. The adaptive gas production regulation control system of a hydrogen plant according to claim 1, wherein the hydrogen gas-alkali separator is internally provided with a first liquid level meter; the second liquid level meter is arranged in the oxygen gas-alkali separator, and the hydrogen gas-alkali separator is communicated with the lower end of the oxygen gas-alkali separator through a liquid U-shaped pipe; the PLC control module is electrically connected with the first liquid level meter and the second liquid level meter respectively.
3. The self-adaptive gas production regulation control system of the hydrogen production device according to claim 2, wherein the use method of the self-adaptive gas production regulation control system of the hydrogen production device,
firstly, the PLC control module reads the pressure signal of the pressure module at the upper end of the hydrogen storage tank, when the pressure value is smaller than a set value, the PLC control module sends out a command to the rectifying module, the rectifying module controls the electrolytic tank to generate hydrogen and oxygen,
secondly, hydrogen in the electrolytic tank firstly enters a hydrogen gas-alkali separator for gas-liquid separation after being generated, hydrogen enters a gas purification module for purification and is then sent into a hydrogen storage tank, meanwhile, oxygen in the electrolytic tank firstly enters an oxygen gas-alkali separator for gas-liquid separation after being generated, oxygen is discharged through an oxygen flow control regulating valve, and an oxygen pipeline switch valve is normally opened during electrolysis;
thirdly, when the PLC control module receives that the signal pressure value is lower than a set value, the PLC control module sends a full-load operation instruction to the rectification module, and the rectification module adjusts electrolysis current according to the full-load current to control the increase of the electrolysis gas production of the electrolytic cell; when the hydrogen consumption control regulating valve is opened for supplying hydrogen for the hydrogen equipment, the pressure module transmits a pressure signal to the PLC control module at all times, when the PLC control module receives that the signal pressure value is close to a set value, the PLC control module sends a proper electrolysis current instruction to the rectification module through PID calculation, the rectification module regulates the electrolysis current according to the electrolysis current given by the PLC, controls the electrolysis tank to increase or decrease the electrolysis gas yield, and ensures that the pressure of the hydrogen storage tank is maintained at the set value; ensuring the balance of gas production and gas consumption;
fourth, hydrogen gas alkali separator lower extreme and oxygen gas alkali separator's lower extreme pass through liquid U type pipe UNICOM, when the pressure of hydrogen output one side is along with the continuous no ration output of hydrogen, when hydrogen gas alkali separator's one side pressure and oxygen gas alkali separator's one side pressure are different, hydrogen gas alkali separator's first level gauge and oxygen gas alkali separator's second level gauge transmit the detection value and give PLC control module, PLC control module then judges according to the numerical value that accepts first level gauge and second level gauge, and send corresponding instruction for oxygen flow control governing valve regulation oxygen exhaust size, ensure that the feedback numerical value of first level gauge and second level gauge is the same, will not take place that one side pressure is too high and lead to the problem of linking up with, safe and reliable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310229580.0A CN116377511A (en) | 2023-03-10 | 2023-03-10 | Self-adaptive gas production regulation control system of hydrogen production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310229580.0A CN116377511A (en) | 2023-03-10 | 2023-03-10 | Self-adaptive gas production regulation control system of hydrogen production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116377511A true CN116377511A (en) | 2023-07-04 |
Family
ID=86964758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310229580.0A Pending CN116377511A (en) | 2023-03-10 | 2023-03-10 | Self-adaptive gas production regulation control system of hydrogen production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116377511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117783378A (en) * | 2024-02-28 | 2024-03-29 | 中国科学院地球环境研究所 | Flow self-adaptive control device, mass spectrometer, nitrogen isotope determination system and method |
-
2023
- 2023-03-10 CN CN202310229580.0A patent/CN116377511A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117783378A (en) * | 2024-02-28 | 2024-03-29 | 中国科学院地球环境研究所 | Flow self-adaptive control device, mass spectrometer, nitrogen isotope determination system and method |
| CN117783378B (en) * | 2024-02-28 | 2024-05-28 | 中国科学院地球环境研究所 | Flow self-adaptive control device, mass spectrometer, nitrogen isotope determination system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114134527B (en) | Water electrolysis hydrogen production device and method with multiple electrolytic tanks | |
| CN116377511A (en) | Self-adaptive gas production regulation control system of hydrogen production device | |
| CN113215593B (en) | Green hydrogen preparation system of hybrid electrolysis water | |
| CN211596928U (en) | Intelligent power-saving type non-negative-pressure water supply equipment | |
| CN116752189A (en) | Alkaline water electrolysis hydrogen production system and control method of pressure and liquid level regulating valve thereof | |
| CN215562955U (en) | Numerical control pressure-superposed compensation type integrated non-negative pressure water supply equipment | |
| CN215628319U (en) | Hydrogen-oxygen balance pressurization system for water electrolysis device | |
| CN211056717U (en) | Nitrogen making machine capable of accurately controlling nitrogen output purity and flow | |
| CN220376372U (en) | Combined regulating and controlling device for preparing ammonia water by cross process | |
| CN210459396U (en) | Improved numerical control three-tank stacked non-negative pressure water supply equipment | |
| CN215891984U (en) | Hydrogen-containing oxygen purification and pressurization conveying system | |
| CN216952991U (en) | Automatic steam pressure stabilizing device of waste heat boiler | |
| CN216108794U (en) | Multi-tank water supply compensation device with return water compensation function | |
| CN212338923U (en) | Automatic pressurized cryogenic liquid delivery device | |
| CN221027698U (en) | System for concentrated sulfuric acid dry chlorine in chlor-alkali production | |
| CN213805605U (en) | Intelligent water supply control system | |
| CN109915352A (en) | A kind of tracking regulator control system of variable-flow hydrogen gas compressor operating condition | |
| CN105178386B (en) | Light and small intelligent household deep-well constant-pressure water supply system | |
| CN218741865U (en) | Overhead tank dropwise adding reaction device | |
| CN220956054U (en) | Automatic control system for pressure of hydrogen compressor | |
| CN217131248U (en) | Boiler drum water level control system | |
| CN218480457U (en) | Biogas conveying system | |
| CN218645273U (en) | Air supply pressure stabilizing system for air separation equipment | |
| CN221001227U (en) | Desalted water supply system | |
| CN220132369U (en) | Safety device for controlling liquid level deviation of hydrogen production device and hydrogen production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |