WO2024082956A1 - 制氢控制系统、方法及存储介质 - Google Patents
制氢控制系统、方法及存储介质 Download PDFInfo
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- WO2024082956A1 WO2024082956A1 PCT/CN2023/122811 CN2023122811W WO2024082956A1 WO 2024082956 A1 WO2024082956 A1 WO 2024082956A1 CN 2023122811 W CN2023122811 W CN 2023122811W WO 2024082956 A1 WO2024082956 A1 WO 2024082956A1
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- Prior art keywords
- side gas
- separation device
- liquid separation
- valve
- liquid level
- Prior art date
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 264
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 264
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 263
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 207
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003860 storage Methods 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 536
- 238000000926 separation method Methods 0.000 claims abstract description 265
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 82
- 239000001301 oxygen Substances 0.000 claims description 82
- 229910052760 oxygen Inorganic materials 0.000 claims description 82
- 238000000195 production control method Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 description 14
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000004886 process control Methods 0.000 description 5
- 230000026676 system process Effects 0.000 description 5
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 4
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
-
- 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
- C25B15/023—Measuring, analysing or testing during electrolytic production
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
-
- 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
Definitions
- the present disclosure relates to the field of hydrogen production control, and in particular, to a hydrogen production control system, method and storage medium.
- the water electrolysis hydrogen production separation system is a pressurized system equipment, and there is a risk of hydrogen and oxygen mixture explosion. How to ensure the safe operation of the hydrogen production system is crucial.
- DCS Distributed Control System
- PLC Programmable Logic Controller
- the safety controller of hydrogen production SIS generally has an alarm interlock function, which cuts off the power supply and puts some valves in the default safe position, so as to eliminate the danger.
- the alarm interlock cannot completely prevent the occurrence of danger. For example, the danger of hydrogen and oxygen liquid levels being mixed cannot be prevented, and the hydrogen and oxygen liquid levels being mixed will cause the risk of explosion.
- the present application provides a hydrogen production control system, method and storage medium.
- the present application provides a hydrogen production control system, the hydrogen production control system comprising a safety controller, a first valve and a second valve respectively connected to the safety controller, a hydrogen production controller, a third valve and a fourth valve respectively connected to the hydrogen production controller, an oxygen side gas-liquid separation device respectively connected to the first valve and the third valve, and a second valve respectively connected to the second valve and the third valve.
- a hydrogen-side gas-liquid separation device connected by four valves; the hydrogen production controller is used to control the pressure of the oxygen-side gas-liquid separation device through the third valve, and to control the liquid level of the hydrogen-side gas-liquid separation device through the fourth valve; the safety controller is used to adjust the pressure of the oxygen-side gas-liquid separation device through the first valve, and/or adjust the liquid level of the hydrogen-side gas-liquid separation device through the second valve when the hydrogen production parameter is greater than or equal to a preset parameter alarm threshold.
- the hydrogen production parameters include the pressure of the oxygen-side gas-liquid separation device; the hydrogen production controller is used to control the system to stop hydrogen production when the pressure of the oxygen-side gas-liquid separation device is greater than or equal to a preset pressure alarm threshold; the safety controller is used to control the system to stop hydrogen production when the pressure of the oxygen-side gas-liquid separation device is greater than or equal to a preset pressure alarm threshold, and adjust the pressure of the oxygen-side gas-liquid separation device through the first valve to relieve the pressure of the oxygen-side gas-liquid separation device.
- the hydrogen production control system further comprises a first pressure transmitter disposed on the oxygen side gas-liquid separation device, and a second pressure transmitter disposed between the first valve and the oxygen side gas-liquid separation device; the safety controller is at least connected to the second pressure transmitter, and is optionally connected to the first pressure transmitter; the hydrogen production controller is at least connected to the first pressure transmitter, and is optionally connected to the second pressure transmitter.
- the second pressure transmitter may also be disposed on the hydrogen side gas-liquid separation device, or between the second valve and the hydrogen side gas-liquid separation device.
- the hydrogen production parameters also include a liquid level difference between the oxygen side gas-liquid separation device and the hydrogen side gas-liquid separation device;
- the hydrogen production controller is used to control the system to stop hydrogen production when the liquid level difference is greater than or equal to a first preset liquid level difference alarm threshold;
- the safety controller is used to control the system to stop hydrogen production when the liquid level difference is greater than or equal to the first preset liquid level difference alarm threshold, and adjust the pressure of the oxygen side gas-liquid separation device through the first valve to reduce the liquid level difference; or adjust the liquid level of the hydrogen side gas-liquid separation device through the second valve to reduce the liquid level difference.
- the hydrogen production control system further includes one or more liquid level transmitters connected to the oxygen side gas-liquid separation device, and one or more liquid level transmitters connected to the hydrogen side gas-liquid separation device;
- the safety controller is respectively connected to some or all of the liquid level transmitters on the oxygen side gas-liquid separation device, and is respectively connected to some or all of the liquid level transmitters on the hydrogen side gas-liquid separation device;
- the hydrogen production controller is respectively connected to some or all of the liquid level transmitters on the oxygen side gas-liquid separation device, And they are respectively connected to part or all of the liquid level transmitters on the hydrogen side gas-liquid separation device;
- the multiple liquid level transmitters connected to the oxygen side gas-liquid separation device are used to determine the liquid level of the oxygen side gas-liquid separation device;
- the multiple liquid level transmitters connected to the hydrogen side gas-liquid separation device are used to determine the liquid level of the hydrogen side gas-liquid separation device.
- the system also includes a fifth valve connected between the oxygen side gas-liquid separation device and the hydrogen side gas-liquid separation device, and the fifth valve is connected to the safety controller; the safety controller is used to control the fifth valve to close when the liquid level difference is greater than or equal to a second preset liquid level difference alarm threshold; the second preset liquid level difference alarm threshold is greater than the first preset liquid level difference alarm threshold.
- the present application also provides a hydrogen production control method, which is applied to the hydrogen production control system, wherein the hydrogen production control system includes a safety controller, a first valve and a second valve connected to the safety controller respectively, a hydrogen production controller, a third valve and a fourth valve connected to the hydrogen production controller respectively, an oxygen-side gas-liquid separation device connected to the first valve and the third valve respectively, and a hydrogen-side gas-liquid separation device connected to the second valve and the fourth valve respectively; the method includes: when a hydrogen production parameter is less than a preset parameter alarm threshold, the hydrogen production controller controls the pressure of the oxygen-side gas-liquid separation device through the third valve so that the pressure of the oxygen-side gas-liquid separation device is less than the preset pressure alarm threshold; and controls the liquid level of the hydrogen side gas-liquid separation device, so that the liquid level difference between the oxygen side gas-liquid separation device and the hydrogen side gas-liquid separation device is less than a first preset liquid level difference alarm threshold; the safety controller is only used to receive the hydrogen production parameters, and
- the hydrogen production parameter includes the pressure of the oxygen-side gas-liquid separation device; and the method further includes:
- the hydrogen production controller controls the system to stop hydrogen production
- the safety controller interlocks and controls the system to stop producing hydrogen, and adjusts the pressure of the oxygen-side gas-liquid separation device through the first valve to relieve the pressure of the oxygen-side gas-liquid separation device.
- the hydrogen production parameter further includes a liquid level difference between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device; and the method further includes:
- the hydrogen production controller controls the system to stop hydrogen production
- the safety controller interlocks and controls the system to stop hydrogen production, and adjusts the pressure of the oxygen-side gas-liquid separation device through the first valve to reduce the liquid level difference; or, adjusts the liquid level of the hydrogen-side gas-liquid separation device through the second valve to reduce the liquid level difference.
- the system further includes a fifth valve connected between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device, and the fifth valve is connected to the safety controller; the method further includes:
- the safety controller controls the fifth valve to close; and the second preset liquid level difference alarm threshold is greater than the first preset liquid level difference alarm threshold.
- the present application also provides a non-temporary computer-readable storage medium having a computer program stored thereon, which implements the steps of the above method when executed by a processor.
- the safety controller adjusts the pressure of the oxygen side gas-liquid separation device through the first valve, and/or adjusts the liquid level of the hydrogen side gas-liquid separation device through the second valve.
- the safety controller not only plays an alarm interlocking role, but also can perform safety control functions, and the control system of the safety controller is independent of the system control loop of the hydrogen production controller, preventing the inability to perform safety control when the system process control loop of the hydrogen production controller fails, effectively ensuring production safety and improving production efficiency.
- FIG1 is a block diagram of a hydrogen production control system according to an exemplary embodiment of the present application.
- FIG2 is a schematic diagram of a hydrogen production control system according to an exemplary embodiment of the present application.
- FIG3 is a flow chart of a hydrogen production control method according to an exemplary embodiment of the present application.
- the present disclosure is applied to the scenario of hydrogen production control.
- the hydrogen production controller obtains the pressure of the oxygen side gas-liquid separation device, and when the pressure of the oxygen side gas-liquid separation device is higher than the upper limit threshold of the preset pressure range, the oxygen side gas-liquid separation device is controlled to release the pressure.
- the oxygen side gas-liquid separation device is controlled to increase the pressure; the hydrogen production controller is also used to obtain the liquid level difference between the hydrogen side gas-liquid separation device and the oxygen side gas-liquid separation device, and when the liquid level difference is outside the preset liquid level difference range, the liquid level of the hydrogen side gas-liquid separation device is controlled to increase or decrease, so as to keep the liquid level difference with the oxygen side gas-liquid separation device within the preset liquid level difference range.
- the safety controller is only used for the alarm interlocking function.
- the safety controller cuts off the hydrogen production power supply and issues an alarm message.
- the preset pressure alarm threshold is greater than the upper limit of the preset pressure range
- the first preset liquid level difference alarm threshold is greater than the upper limit of the preset liquid level difference range.
- the inventors have discovered that in the existing control system, after the hydrogen production power supply is stopped, if the pressure of the oxygen side gas-liquid separation device is not controlled to be within a preset pressure range as soon as possible, or the liquid level difference between the hydrogen side gas-liquid separation device and the oxygen side gas-liquid separation device is not controlled to be within a preset liquid level difference range as soon as possible, there is also a risk of liquid cross-talk between the oxygen side gas-liquid separation device and the hydrogen side gas-liquid separation device. Even if the safety controller issues an alarm message, the relevant processing personnel may not be able to handle it in time, resulting in a production accident.
- the present application provides a hydrogen production control system, method and storage medium
- the hydrogen production control system includes a safety controller, a first valve and a second valve connected to the safety controller respectively, a hydrogen production controller, a third valve and a fourth valve connected to the hydrogen production controller respectively, an oxygen side gas-liquid separation device connected to the first valve and the third valve respectively, and a hydrogen side gas-liquid separation device connected to the second valve and the fourth valve respectively
- the hydrogen production controller is used to control the pressure of the oxygen side gas-liquid separation device through the third valve, and control the pressure of the hydrogen side gas-liquid separation device through the fourth valve
- the safety controller is used to adjust the pressure of the oxygen side gas-liquid separation device through the first valve and/or adjust the pressure of the hydrogen side gas-liquid separation device through the second valve when the hydrogen production parameter is greater than or equal to the preset parameter alarm threshold.
- the safety controller not only plays an alarm interlocking role, but also can perform a safety control function, and the control system of the safety controller is independent of the system control loop of the hydrogen production controller, preventing the system process control loop of the hydrogen production controller from failing, effectively ensuring production safety and improving production efficiency.
- FIG1 is a block diagram of a hydrogen production control system according to an exemplary embodiment of the present application.
- the system includes: a safety controller 101, a first valve 1011 and a second valve 1012 respectively connected to the safety controller 101, a hydrogen production controller 102, a third valve 1021 and a fourth valve 1022 respectively connected to the hydrogen production controller 102, an oxygen-side gas-liquid separation device 103 respectively connected to the first valve 1011 and the third valve 1021, and a hydrogen-side gas-liquid separation device 104 respectively connected to the second valve 1012 and the fourth valve 1022;
- the hydrogen production controller 102 is used to control the pressure of the oxygen side gas-liquid separation device 103 through the third valve 1021 so that the pressure of the oxygen side gas-liquid separation device is less than the preset pressure alarm threshold, and to control the liquid level of the hydrogen side gas-liquid separation device 104 through the fourth valve 1022 so that the liquid level difference between the oxygen side gas-liquid separation device 103 and the hydrogen side gas-liquid separation device 104 is less than the first preset liquid level difference alarm threshold.
- the safety controller 101 When the hydrogen production parameter is less than the preset parameter alarm threshold, the safety controller 101 is only used to receive the hydrogen production parameter and does not participate in the hydrogen production control of the system.
- the first valve 1011 and the second valve 1012 are both in a closed state.
- the safety controller 101 is used to adjust the pressure of the oxygen-side gas-liquid separation device 103 through the first valve 1011 and/or adjust the liquid level of the hydrogen-side gas-liquid separation device 104 through the second valve 1012 when the hydrogen production parameter is greater than or equal to a preset parameter alarm threshold.
- the hydrogen production parameter includes the pressure of the oxygen side gas-liquid separation device 103, and/or the liquid level difference between the oxygen side gas-liquid separation device 103 and the hydrogen side gas-liquid separation device 104; when the hydrogen production parameter is the pressure, the pressure of the oxygen side gas-liquid separation device 103 is adjusted by the first valve 1011 to control the pressure to be less than the preset pressure alarm threshold; when the hydrogen production parameter is the liquid level difference, and the liquid level of the oxygen side gas-liquid separation device is lower than the liquid level of the hydrogen side gas-liquid separation device, the oxygen side gas-liquid separation device 103 is adjusted by the first valve 1011 to control the pressure to be less than the preset pressure alarm threshold.
- the liquid level of the hydrogen side gas-liquid separation device 104 can be adjusted by the fourth valve 1022 to control the liquid level difference to be less than the first preset liquid level difference alarm threshold; when the hydrogen production parameter is the liquid level difference, and the liquid level of the oxygen side gas-liquid separation device is higher than the liquid level of the hydrogen side gas-liquid separation device, the liquid level of the hydrogen side gas-liquid separation device 104 is adjusted by the second valve 1012, and further, the pressure of the oxygen side gas-liquid separation device 103 can be adjusted by the third valve 1021 to control the liquid level difference to be less than the first preset liquid level difference alarm threshold.
- FIG2 is a schematic diagram of a hydrogen production control system according to an exemplary embodiment of the present application.
- the hydrogen production control system includes: a general controller (i.e., a hydrogen production controller), a regulating valve 1, a control valve 2, a regulating valve 2, and a control valve 4 connected to the general controller respectively, and a safety controller, a control valve 1, a control valve 3, and a control valve 5 connected to the safety controller respectively, wherein the regulating valve 1 and the control valve 2 form a series control, and jointly control the pressure of the oxygen side gas-liquid separator in parallel with the control valve 1, and the regulating valve 2 and the control valve 4 form a series control, and jointly control the liquid level of the hydrogen side gas-liquid separator in parallel with the control valve 3; the general controller is connected to the safety controller, and the general controller and the safety controller are respectively connected to a power supply, and the power supply is used to provide power for the electroly
- a general controller i.e., a hydrogen production controller
- a regulating valve 1
- the hydrogen production control system also includes a gas-liquid separation frame. If the gas-liquid separation frame includes a gas-liquid separator, a scrubber, a gas cooler, and a gas-water separator in sequence, the regulating valve and the control valve are connected to the gas outlet of the gas-water separator. If the gas-liquid separation frame includes a gas-liquid separator and an integrated scrubber in sequence, and the integrated scrubber integrates the functions of washing, cooling and gas-water separation, then the regulating valve and the control valve are connected to the integrated scrubber. The gas outlet of the scrubber is connected to the gas outlet of the Chenghua scrubber.
- the hydrogen production control system also includes one or more liquid level transmitters connected to the oxygen side gas-liquid separation device, and one or more liquid level transmitters connected to the hydrogen side gas-liquid separation device;
- the safety controller is respectively connected to part or all of the liquid level transmitters on the oxygen side gas-liquid separation device, and is respectively connected to part or all of the liquid level transmitters on the hydrogen side gas-liquid separation device;
- the hydrogen production controller is respectively connected to part or all of the liquid level transmitters on the oxygen side gas-liquid separation device, and is respectively connected to part or all of the liquid level transmitters on the hydrogen side gas-liquid separation device;
- the multiple liquid level transmitters connected to the oxygen side gas-liquid separation device are used to determine the liquid level of the oxygen side gas-liquid separation device; the multiple liquid level transmitters connected to the hydrogen side gas-liquid separation device are used to determine the liquid level of the hydrogen side gas-liquid separation device.
- the hydrogen production control system also includes a first pressure transmitter arranged on the oxygen side gas-liquid separation device, and a second pressure transmitter arranged between the first valve and the oxygen side gas-liquid separation device; the safety controller is at least connected to the second pressure transmitter, and is optionally connected to the first pressure transmitter; the hydrogen production controller is at least connected to the first pressure transmitter, and is optionally connected to the second pressure transmitter.
- L1, L2 and L3 are respectively liquid level transmitters connected to the oxygen side gas-liquid separator, used to obtain the liquid level of the oxygen side gas-liquid separator
- L4, L5 and L6 are respectively liquid level transmitters connected to the hydrogen side gas-liquid separator, used to obtain the liquid level of the hydrogen side gas-liquid separator
- P1 and P2 are pressure transmitters, used to obtain the gas pressure of the oxygen side gas-liquid separator
- the above-mentioned liquid level transmitters and pressure transmitters are respectively connected to the common controller and the safety controller.
- liquid level transmitters and pressure transmitters are set to prevent a single liquid level transmitter or pressure transmitter from failing, and to obtain accurate pressure and liquid level difference when any of the liquid level transmitters or pressure transmitters fails.
- the number of the liquid level transmitter and the pressure transmitter can be set according to actual needs, and this application does not impose any restrictions on this.
- the hydrogen production parameter includes the pressure of the oxygen-side gas-liquid separation device 103; the hydrogen production controller 102 is used to control the system to stop hydrogen production when the pressure of the oxygen-side gas-liquid separation device 103 is greater than or equal to a preset pressure alarm threshold.
- the system can be controlled to stop hydrogen production by controlling the power supply to stop supplying power to the electrolyzer; the safety controller 101 is used to control the system to stop hydrogen production in a chain manner when the pressure of the oxygen-side gas-liquid separation device 103 is greater than or equal to a preset pressure alarm threshold.
- the system can be controlled to stop hydrogen production by controlling the power supply to stop supplying power to the electrolyzer, and the first valve
- the door 1011 adjusts the pressure of the oxygen-side gas-liquid separator 103 to relieve the pressure of the oxygen-side gas-liquid separator 103.
- the safety controller can control the control valve 1 to open to relieve the pressure of the oxygen-side gas-liquid separator.
- the pressure obtained by the pressure transmitter is greater than or equal to the preset pressure alarm threshold, and the liquid level difference is within the preset liquid level difference range, indicating that one or more valves among the regulating valve 1, the control valve 2 and the control valve 6 are faulty. Therefore, the ordinary controller can control the power to be turned off, the system stops hydrogen production, the safety controller interlocks the ordinary controller to stop hydrogen production, sends out an alarm message, and controls the control valve 1 to open for pressure relief, so as to control the pressure in the oxygen side gas-liquid separator to be within the preset pressure range, and can also control the power to be turned on to continue hydrogen production when the pressure in the oxygen side gas-liquid separator is within the preset pressure range.
- the hydrogen production controller 102 is also used to adjust the pressure of the hydrogen-side gas-liquid separation device 104 through the fourth valve 1022 when the pressure of the oxygen-side gas-liquid separation device 103 is greater than or equal to the preset pressure alarm threshold, so that the liquid level difference between the oxygen-side gas-liquid separation device 103 and the hydrogen-side gas-liquid separation device 104 is within the preset liquid level difference range.
- the opening of the regulating valve 2 can be reduced, or the control valve 4 can be closed to increase the gas pressure of the hydrogen-side gas-liquid separator to maintain the liquid level difference within the preset liquid level difference range.
- the first valve 1011 and the second valve 1012 can be regulating valves, so that the safety controller 101 can control the opening of the first valve 1011, and then control the pressure of the oxygen side gas-liquid separation device 103;
- the regulating valve can be a membrane regulating valve, an electric regulating valve or a pneumatic regulating ball valve, and the number can be one or more; or
- the first valve 1011 can also be a manual valve and a control valve
- the second valve 1012 can also be a manual valve and a control valve, wherein the control valve is connected to the safety controller 101, and is used to accept the control of the safety controller 101 to open or close, and can be a stop valve, a switch valve, etc., and the manual valve is used to release pressure according to a preset opening.
- the safety controller can control the first valve to relieve the pressure of the oxygen-side gas-liquid separation device, and ensure that the liquid level difference between the hydrogen-side gas-liquid separation device and the oxygen-side gas-liquid separation device is within the preset liquid level difference range, thereby preventing liquid cross-talk, improving the safety of the hydrogen production system, and being conducive to ensuring production safety and improving production efficiency.
- the hydrogen production parameters also include the oxygen side gas-liquid separation device 103 and the liquid level difference between the oxygen side gas-liquid separator 103 and the hydrogen side gas-liquid separator 104; the hydrogen production controller 102 is used to control the system to stop hydrogen production when the liquid level difference is greater than or equal to the first preset liquid level difference alarm threshold.
- the system can be controlled to stop hydrogen production by controlling the power supply to stop supplying power to the electrolyzer; the safety controller 101 is used to control the system to stop hydrogen production when the liquid level difference is greater than or equal to the first preset liquid level difference alarm threshold, and adjust the pressure of the oxygen side gas-liquid separator 103 through the first valve 1011 to reduce the liquid level difference.
- the safety controller opens the control valve 1 to relieve the pressure of the oxygen side gas-liquid separator and increases the liquid level of the oxygen side gas-liquid separator to reduce the liquid level difference; or adjusts the liquid level of the hydrogen side gas-liquid separator 104 through the second valve 1012 to reduce the liquid level difference.
- the safety controller opens the control valve 3 to relieve the pressure of the hydrogen side gas-liquid separator and increases the liquid level of the hydrogen side gas-liquid separator to reduce the liquid level difference.
- the hydrogen production controller is also used to adjust the pressure of the oxygen side gas-liquid separation device through the third valve when the liquid level difference is greater than or equal to the first preset liquid level difference alarm threshold to reduce the liquid level difference.
- the liquid level difference represents the liquid level of the hydrogen-side gas-liquid separation device 104 minus the liquid level of the oxygen-side gas-liquid separation device 103.
- the liquid level difference is greater than or equal to the first preset liquid level difference alarm threshold, it represents that the liquid level of the hydrogen-side gas-liquid separation device 104 is too high and the pressure is low.
- the fourth valve 1022 fails and cannot increase the pressure of the hydrogen-side gas-liquid separation device 104. Therefore, in order to keep the liquid level difference within the preset liquid level difference range, the safety controller can open the control valve 1 to the oxygen-side gas-liquid separation device 104 as shown in FIG.
- the separator is depressurized, that is, the safety controller 101 controls the first valve 1011 to open, and the oxygen-side gas-liquid separation device 103 is depressurized.
- the common controller can increase the opening of the regulating valve 1, that is, the hydrogen production controller 102 is also used to control the third valve 1021 to increase the opening when the liquid level difference is greater than or equal to the first preset liquid level difference alarm threshold, and depressurize the oxygen-side gas-liquid separation device 103 to reduce the liquid level difference; or
- the liquid level difference represents the liquid level of the oxygen side gas-liquid separation device 103 minus the liquid level of the hydrogen side gas-liquid separation device 104.
- the fourth valve 1022 fails and cannot reduce the pressure of the hydrogen side gas-liquid separation device 104. Therefore, in order to keep the liquid level difference within the preset liquid level difference range, the safety control valve can control the control valve 3 to open as shown in FIG. 2.
- the hydrogen side gas-liquid separator is depressurized, that is, the safety controller 101 controls the second valve 1012 to open, and the hydrogen side gas-liquid separation device 104 is depressurized.
- the hydrogen production controller 102 can control the third valve 1021 to reduce the opening, and control the oxygen side gas-liquid separation device 103 to increase the pressure.
- the safety controller can adjust the pressure of the oxygen side gas-liquid separation device through the first valve to reduce the liquid level difference; or, adjust the pressure of the hydrogen side gas-liquid separation device through the second valve to reduce the liquid level difference, so as to ensure that the liquid level difference between the hydrogen side gas-liquid separation device and the oxygen side gas-liquid separation device is within the preset liquid level difference range, prevent liquid cross-talk, improve the safety of the hydrogen production system, and help to ensure production safety and improve production efficiency.
- the hydrogen production system also includes a fifth valve 105 connected between the oxygen side gas-liquid separation device 103 and the hydrogen side gas-liquid separation device 104, and the fifth valve 105 is connected to the safety controller 101; the safety controller 101 is used to control the fifth valve 105 to close when the liquid level difference is greater than or equal to a second preset liquid level difference alarm threshold; the second preset liquid level difference alarm threshold is greater than the first preset liquid level difference alarm threshold.
- the fifth valve 105 may be a control valve.
- the control valve When the hydrogen production system is operating normally, the control valve is in an open state so that the hydrogen production system can produce hydrogen; when the liquid level difference is greater than or equal to the second preset liquid level difference alarm threshold, the control valve is in a closed state to disconnect the connection between the oxygen-side gas-liquid separation device 103 and the hydrogen-side gas-liquid separation device 104, so that liquid cross-talk can be completely avoided, thereby improving the safety of the hydrogen production system.
- the control valve may be a conventional switch valve in the art.
- the hydrogen production parameter includes the pressure and the liquid level difference, that is, when the pressure is greater than or equal to the preset pressure alarm threshold, and the liquid level difference is greater than or equal to the first preset liquid level difference alarm threshold, it indicates that the control loop where the hydrogen production controller is located may be completely out of control, and the safety controller 101 can control the power supply to stop outputting the hydrogen production current, and the system stops producing hydrogen; open the first valve 1011 to relieve the pressure on the oxygen-side gas-liquid separation device 103, and open the second valve 1012 to relieve the pressure on the hydrogen-side gas-liquid separation device 104 to keep the liquid level difference within the preset liquid level difference range.
- the safety controller opens the control valve 1 and the control valve 3 to relieve the pressure on the oxygen-side gas-liquid separator and the hydrogen-side gas-liquid separator, so that the pressure of the oxygen-side gas-liquid separator is within the preset pressure range, and the liquid level difference between the hydrogen-side gas-liquid separator and the oxygen-side gas-liquid separator is within the preset liquid level difference range; further, in order to prevent liquid cross-talk, the safety controller 101 can also control the fifth valve 105 to close to ensure the system System security.
- the safety controller not only plays an alarm interlocking role, but also can perform safety control functions, and the control system of the safety controller is independent of the system control loop of the hydrogen production controller, preventing the system process control loop of the hydrogen production controller from malfunctioning, effectively ensuring production safety and improving production efficiency.
- FIG3 is a hydrogen production control method according to an exemplary embodiment of the present application.
- the method can be applied to the hydrogen production control system shown in FIG1, which includes a safety controller, a first valve and a second valve respectively connected to the safety controller, a hydrogen production controller, a third valve and a fourth valve respectively connected to the hydrogen production controller, an oxygen-side gas-liquid separation device respectively connected to the first valve and the third valve, and a hydrogen-side gas-liquid separation device respectively connected to the second valve and the fourth valve;
- the method includes:
- the hydrogen production controller controls the pressure of the oxygen-side gas-liquid separation device through the third valve, and controls the liquid level of the hydrogen-side gas-liquid separation device through the fourth valve.
- the hydrogen production controller controls the pressure of the oxygen-side gas-liquid separation device through the third valve so that the pressure of the oxygen-side gas-liquid separation device is less than a preset pressure alarm threshold; and controls the liquid level of the hydrogen-side gas-liquid separation device through the fourth valve so that the liquid level difference between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device is less than a first preset liquid level difference alarm threshold;
- the safety controller is only used to receive the hydrogen production parameters, and the first valve and the second valve are in a closed state;
- the hydrogen production parameters include the pressure of the oxygen-side gas-liquid separation device, and the liquid level difference between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device.
- the oxygen-side gas-liquid separation device may be depressurized by adjusting the opening of the third valve; or the hydrogen-side gas-liquid separation device may be depressurized by adjusting the opening of the fourth valve.
- the hydrogen production controller controls the system to stop hydrogen production; the safety controller controls the system to stop hydrogen production in an interlocking manner, adjusts the pressure of the oxygen side gas-liquid separation device through the first valve, and/or adjusts the liquid level of the hydrogen side gas-liquid separation device through the second valve.
- the first valve may be controlled to open to release the pressure of the oxygen-side gas-liquid separation device; or Alternatively, the second valve is controlled to open to relieve the pressure of the hydrogen-side gas-liquid separation device.
- the hydrogen production parameter includes the pressure of the oxygen-side gas-liquid separation device; the method further includes:
- the hydrogen production controller controls the system to stop producing hydrogen; for example, the hydrogen production controller can control the power supply to be turned off, and the system stops producing hydrogen.
- the safety controller interlocks and controls the system to stop hydrogen production, and adjusts the pressure of the oxygen-side gas-liquid separation device through the first valve to relieve the pressure of the oxygen-side gas-liquid separation device.
- the safety controller can control the first valve to open to relieve the pressure of the oxygen-side gas-liquid separation device.
- the method further comprises:
- the hydrogen production controller adjusts the pressure of the hydrogen-side gas-liquid separation device through the fourth valve so that the liquid level difference between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device is within the preset liquid level difference range.
- the hydrogen production controller can increase the pressure of the hydrogen-side gas-liquid separation device by reducing the opening of the fourth valve, so that the liquid level difference between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device is within a preset liquid level difference range.
- the hydrogen production parameter further includes a liquid level difference between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device; the method further includes:
- the hydrogen production controller controls the system to stop hydrogen production
- the safety controller interlocks and controls the system to stop hydrogen production, and adjusts the pressure of the oxygen-side gas-liquid separation device through the first valve to reduce the liquid level difference; or, adjusts the liquid level of the hydrogen-side gas-liquid separation device through the second valve to reduce the liquid level difference.
- the safety controller can control the first valve to open and release the pressure on the oxygen-side gas-liquid separation device to reduce the liquid level difference; or, the safety controller can control the second valve to open and release the pressure on the hydrogen-side gas-liquid separation device to reduce the liquid level difference.
- the method further comprises:
- the hydrogen production control adjusts the pressure of the oxygen-side gas-liquid separation device through the third valve to reduce the liquid level difference.
- the hydrogen production controller can increase the opening of the third valve to reduce the pressure of the oxygen-side gas-liquid separation device, increase the liquid level, and reduce the liquid level difference; or when the liquid level of the oxygen-side gas-liquid separation device is too high, the hydrogen production controller can reduce the opening of the third valve to increase the pressure of the oxygen-side gas-liquid separation device, reduce the liquid level, and reduce the liquid level difference.
- the system further comprises a fifth valve connected between the oxygen-side gas-liquid separation device and the hydrogen-side gas-liquid separation device, and the fifth valve is connected to the safety controller; the method further comprises:
- the safety controller controls the fifth valve to close; and the second preset liquid level difference alarm threshold is greater than the first preset liquid level difference alarm threshold.
- the safety controller not only plays an alarm interlocking role, but also can perform safety control functions, and the control system of the safety controller is independent of the system control loop of the hydrogen production controller, preventing the system process control loop of the hydrogen production controller from malfunctioning, effectively ensuring production safety and improving production efficiency.
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Abstract
本公开涉及一种制氢控制系统、方法及存储介质，该制氢控制系统包括安全控制器、分别与该安全控制器连接的第一阀门和第二阀门、制氢控制器、分别与该制氢控制器连接的第三阀门和第四阀门、分别与该第一阀门和该第三阀门连接的氧侧气液分离装置、以及分别与该第二阀门和该第四阀门连接的氢侧气液分离装置；该制氢控制器，用于通过该第三阀门控制该氧侧气液分离装置的压力，并通过该第四阀门控制该氢侧气液分离装置的液位；该安全控制器，用于在所述制氢参数大于或者等于预设参数报警阈值的情况下，通过该第一阀门调节该氧侧气液分离装置的压力，和/或，通过该第二阀门调节该氢侧气液分离装置的液位。这样，有效保障了系统安全，提高了生产效率。
Description
相关申请的交叉引用
本公开要求在2022年10月17日提交中国专利局、申请号为202211269276.0、名称为“制氢控制系统、方法及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
本公开涉及制氢控制的领域，具体地，涉及一种制氢控制系统、方法及存储介质。
水电解制氢分离系统是一个带压的系统设备，并且存在着氢氧气混合爆炸风险，如何保证制氢系统的安全运行至关重要。相关技术中通常采用DCS(Distributed Control System，分散控制系统)和PLC(Programmable Logic Controller，可编程逻辑控制器)用于制氢系统的制氢控制器，控制制氢系统运行，同时也兼有报警连锁保护作用，一定程度上可以保证系统安全，但仍然存在故障概率。
制氢SIS(Safety Instrumented System，安全仪表系统)安全控制器一般是报警连锁功能，连锁切断电源以及使部分阀门处于默认安全位置，以此当作是危险解除。但实际由于其一般不参与控制执行(如控制阀等)，当制氢控制器及其控制回路存在失效情况时，报警连锁并不能完全阻止危险的发生，比如对于氢氧液位互串的危险则无法阻止，而氢氧液位互串导致氢氧气混合进而存在爆炸的风险。
发明内容
为了解决上述问题，本申请提供了一种制氢控制系统、方法及存储介质。
第一方面，本申请提供了一种制氢控制系统，所述制氢控制系统包括安全控制器、分别与所述安全控制器连接的第一阀门和第二阀门、制氢控制器、分别与所述制氢控制器连接的第三阀门和第四阀门、分别与所述第一阀门和所述第三阀门连通的氧侧气液分离装置、以及分别与所述第二阀门和所述第
四阀门连通的氢侧气液分离装置；所述制氢控制器，用于通过所述第三阀门控制所述氧侧气液分离装置的压力，并通过所述第四阀门控制所述氢侧气液分离装置的液位；所述安全控制器，用于在所述制氢参数大于或者等于预设参数报警阈值的情况下，通过所述第一阀门调节所述氧侧气液分离装置的压力，和/或，通过所述第二阀门调节所述氢侧气液分离装置的液位。
可选地，所述制氢参数包括所述氧侧气液分离装置的压力；所述制氢控制器，用于在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，控制所述系统停止制氢；所述安全控制器，用于在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述氧侧气液分离装置泄压。
可选地，所述制氢控制系统还包括设置在所述氧侧气液分离装置上的第一压力变送器，和设置在所述第一阀门和所述氧侧气液分离装置之间的第二压力变送器；所述安全控制器至少与所述第二压力变送器连接，任选地与所述第一压力变送器连接；所述制氢控制器至少与所述第一压力变送器连接，任选地与所述第二压力变送器连接。可选地，第二压力变送器还可以设置在氢侧气液分离装置上，或者设置在所述第二阀门和所述氢侧气液分离装置之间。
可选地，所述制氢参数还包括所述氧侧气液分离装置与所述氢侧气液分离装置之间的液位差；所述制氢控制器，用于在所述液位差大于或者等于第一预设液位差报警阈值的情况下，控制所述系统停止制氢；所述安全控制器，用于在所述液位差大于或者等于所述第一预设液位差报警阈值的情况下，连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述液位差下降；或者，通过所述第二阀门调节所述氢侧气液分离装置的液位，以使所述液位差下降。
可选地，所述制氢控制系统还包括与所述氧侧气液分离装置连接的一个或多个液位变送器，和与所述氢侧气液分离装置连接的一个或多个液位变送器；所述安全控制器分别与所述氧侧气液分离装置上的部分或全部液位变送器连接，并分别与氢侧气液分离装置上的部分或全部液位变送器连接；所述制氢控制器分别与所述氧侧气液分离装置上的部分或全部液位变送器连接，
并分别与所述氢侧气液分离装置上的部分或全部液位变送器连接；与所述氧侧气液分离装置连接的多个液位变送器用于确定所述氧侧气液分离装置的液位；与所述氢侧气液分离装置连接的多个液位变送器用于确定所述氢侧气液分离装置的液位。
可选地，所述系统还包括连接在所述氧侧气液分离装置和所述氢侧气液分离装置之间的第五阀门，所述第五阀门与所述安全控制器连接；所述安全控制器，用于在所述液位差大于或者等于第二预设液位差报警阈值的情况下，控制所述第五阀门关闭；所述第二预设液位差报警阈值大于所述第一预设液位差报警阈值。
第二方面，本申请还提供了一种制氢控制方法，所述方法应用于所述制氢控制系统，所述制氢控制系统包括安全控制器、分别与所述安全控制器连接的第一阀门和第二阀门、制氢控制器、分别与所述制氢控制器连接的第三阀门和第四阀门、分别与所述第一阀门和所述第三阀门连通的氧侧气液分离装置、以及分别与所述第二阀门和所述第四阀门连通的氢侧气液分离装置；所述方法包括：在制氢参数小于预设参数报警阈值的情况下，所述制氢控制器通过所述第三阀门控制所述氧侧气液分离装置的压力，以使所述氧侧气液分离装置的压力小于预设压力报警阈值；并通过所述第四阀门控制所述氢侧气液分离装置的液位，以使所述氧侧气液分离装置和所述氢侧气液分离装置之间的液位差小于第一预设液位差报警阈值；所述安全控制器仅用于接收所述制氢参数，所述第一阀门和第二阀门处于关闭状态；所述制氢参数包括所述氧侧气液分离装置的压力，以及所述氧侧气液分离装置和所述氢侧气液分离装置之间的液位差；在所述制氢参数大于或者等于预设参数报警阈值的情况下，所述制氢控制器控制所述系统停止制氢；所述安全控制器连锁控制所述系统停止制氢，通过所述第一阀门调节所述氧侧气液分离装置的压力，和/或，通过所述第二阀门调节所述氢侧气液分离装置的液位。
可选地，所述制氢参数包括所述氧侧气液分离装置的压力；所述方法还包括：
在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，所述制氢控制器控制所述系统停止制氢；
在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况
下，所述安全控制器连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述氧侧气液分离装置泄压。
可选地，所述制氢参数还包括所述氧侧气液分离装置与所述氢侧气液分离装置之间的液位差；所述方法还包括：
在所述液位差大于或者等于第一预设液位差报警阈值的情况下，所述制氢控制器控制所述系统停止制氢；
在所述液位差大于或者等于所述第一预设液位差报警阈值的情况下，所述安全控制器连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述液位差下降；或者，通过所述第二阀门调节所述氢侧气液分离装置的液位，以使所述液位差下降。
可选地，所述系统还包括连接在所述氧侧气液分离装置和所述氢侧气液分离装置之间的第五阀门，所述第五阀门与所述安全控制器连接；所述方法还包括：
在所述液位差大于或者等于第二预设液位差报警阈值的情况下，所述安全控制器控制所述第五阀门关闭；所述第二预设液位差报警阈值大于所述第一预设液位差报警阈值。
第三方面，本申请还提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述方法的步骤。
采用上述技术方案，安全控制器在制氢参数大于或者等于预设参数报警阈值的情况下，通过所述第一阀门调节所述氧侧气液分离装置的压力，和/或，通过所述第二阀门调节所述氢侧气液分离装置的液位，这样，安全控制器不仅起到报警连锁作用，还可以执行安全控制功能，并且所述安全控制器的控制系统独立于所述制氢控制器的系统控制回路，防止所述制氢控制器的系统工艺控制回路出现故障时无法进行安全控制执行，有效保障了生产安全，提高了生产效率。
本公开的其他特征和优点将在随后的具体实施方式部分予以详细说明。
上述说明仅是本公开技术方案的概述，为了能够更清楚了解本公开的技术手段，而可依照说明书的内容予以实施，并且为了让本公开的上述和其它目的、特征和优点能够更明显易懂，以下特举本公开的具体实施方式。
为了更清楚地说明本公开实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
附图是用来提供对本公开的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。在附图中：
图1是本申请根据一示例性实施例示出的一种制氢控制系统框图；
图2是本申请根据一示例性实施例示出的一种制氢控制系统示意图；
图3是本申请根据一示例性实施例示出的一种制氢控制方法流程图。
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。
需要说明的是，本公开中所有获取信号、信息或数据的动作都是在遵照所在地国家相应的数据保护法规政策的前提下，并获得由相应装置所有者给予授权的情况下进行的。
首先对本公开的应用场景进行说明，本公开应用于制氢控制的场景下，在该场景下，现有的控制系统中，制氢控制器获取氧侧气液分离装置的压力，在氧侧气液分离装置的压力高于预设压力范围的上限阈值的情况下，控制氧侧气液分离装置进行泄压，反之，在氧侧气液分离装置的压力低于预设压力范围的下限阈值的情况下，控制氧侧气液分离装置提高压力；制氢控制器还用于获取氢侧气液分离装置和氧侧气液分离装置之间的液位差，在该液位差处于预设液位差范围之外的情况下，控制氢侧气液分离装置的液位升高或者降低，以保持和氧侧气液分离装置的液位差处于预设液位差范围之内。
安全控制器仅用于报警连锁的功能，在该制氢系统中氧侧气液分离装置的压力大于或者等于预设压力报警阈值，或者氢侧气液分离装置和氧侧气液分离装置的液位差大于或者等于第一预设液位差报警阈值的情况下，安全控制器切断制氢电源，并发出告警信息。其中，该预设压力报警阈值大于该预设压力范围的上限值，该第一预设液位差报警阈值大于该预设液位差范围的上限值。
但是发明人发现，在现有的控制系统中，停止制氢电源之后，如果不尽快控制氧侧气液分离装置的压力处于预设压力范围之内，或者尽快控制该氢侧气液分离装置和该氧侧气液分离装置之间的液位差处于预设液位差范围之内，也存在氧侧气液分离装置和氢侧气液分离装置串液的风险，即使安全控制器发出告警信息，相关处理人员也可能无法及时处理，导致出现生产事故。
为了防止该制氢控制器的系统工艺控制回路出现故障时无法及时进行安全控制，本申请提供了一种制氢控制系统、方法及存储介质，该制氢控制系统包括安全控制器、分别与该安全控制器连接的第一阀门和第二阀门、制氢控制器、分别与该制氢控制器连接的第三阀门和第四阀门、分别与该第一阀门和该第三阀门连通的氧侧气液分离装置、以及分别与该第二阀门和该第四阀门连通的氢侧气液分离装置；该制氢控制器，用于通过该第三阀门控制该氧侧气液分离装置的压力，并通过该第四阀门控制该氢侧气液分离装置的压力；该安全控制器，用于在制氢参数大于或者等于预设参数报警阈值的情况下，通过该第一阀门调节该氧侧气液分离装置的压力，和/或，通过该第二阀门调节该氢侧气液分离装置的压力。这样，安全控制器不仅起到报警连锁作用，还可以执行安全控制功能，并且该安全控制器的控制系统独立于该制氢控制器的系统控制回路，防止该制氢控制器的系统工艺控制回路出现故障，有效保障了生产安全，提高了生产效率。
下面结合具体地实施例对本申请进行说明。
图1是本申请根据一示例性实施例示出的一种制氢控制系统框图，如图1所示，该系统包括：安全控制器101、分别与该安全控制器101连接的第一阀门1011和第二阀门1012、制氢控制器102、分别与该制氢控制器102连接的第三阀门1021和第四阀门1022、分别与该第一阀门1011和该第三阀门1021连通的氧侧气液分离装置103、以及分别与该第二阀门1012和该第四阀门1022连通的氢侧气液分离装置104；
该制氢控制器102，用于通过该第三阀门1021控制该氧侧气液分离装置103的压力，以使该氧侧气液分离装置的压力小于该预设压力报警阈值，并通过该第四阀门1022控制该氢侧气液分离装置104的液位，以使该氧侧气液分离装置103和该氢侧气液分离装置104之间的液位差小于第一预设液位差报警阈值。
该安全控制器101在该制氢参数小于预设参数报警阈值的情况下，仅用于接收该制氢参数，不参与该系统的制氢控制，该第一阀门1011和该第二阀门1012都处于关闭状态。
该安全控制器101，用于在制氢参数大于或者等于预设参数报警阈值的情况下，通过该第一阀门1011调节该氧侧气液分离装置103的压力，和/或，通过该第二阀门1012调节该氢侧气液分离装置104的液位。
其中，该制氢参数包括该氧侧气液分离装置103的压力，和/或，该氧侧气液分离装置103与该氢侧气液分离装置104之间的液位差；在该制氢参数为该压力的情况下，通过该第一阀门1011调节该氧侧气液分离装置103的压力，以控制该压力小于预设压力报警阈值；在该制氢参数为该液位差的情况下，且该氧侧气液分离装置的液位低于氢侧气液分离装置的液位，通过该第一阀门1011调节该氧侧气液分离装置103的压力，进一步地，还可以通过第四阀门1022调节该氢侧气液分离装置104的液位，以控制该液位差小于第一预设液位差报警阈值；在该制氢参数为该液位差的情况下，且该氧侧气液分离装置的液位高于氢侧气液分离装置的液位，通过该第二阀门1012调节该氢侧气液分离装置104的液位，进一步地，还可以通过该第三阀门1021调节氧侧气液分离装置103的压力，以控制该液位差小于第一预设液位差报警阈值。
为了进一步对本申请进行说明，本申请还提供了一种制氢控制系统，示例地，图2是本申请根据一示例性实施例示出的一种制氢控制系统示意图，如图2所示，该制氢控制系统包括：普通控制器(即制氢控制器)，分别与该普通控制器连接的调节阀1、控制阀2、调节阀2、控制阀4，安全控制器，分别与该安全控制器连接的控制阀1、控制阀3和控制阀5，其中，该调节阀1和该控制阀2形成串联控制，共同与控制阀1并行控制该氧侧气液分离器的压力，该调节阀2和该控制阀4形成串联控制，共同与控制阀3并行控制该氢侧气液分离器的液位；该普通控制器与该安全控制器连接，且该普通控制器与该安全控制器都分别与电源连接，该电源用于为该电解槽提供电源。该制氢控制系统还包括气液分离框架，如果气液分离框架依次包含气液分离器、洗涤器、气体冷却器和气水分离器时，则调节阀和控制阀与气水分离器的气体出口连通。如果气液分离框架依次包含气液分离器和集成化的洗涤器，集成化的洗涤器集成有洗涤、冷却和气水分离的功能，则调节阀和控制阀与集
成化的洗涤器的气体出口连通。
另外，该制氢控制系统还包括与该氧侧气液分离装置连接的一个或多个液位变送器，和与该氢侧气液分离装置连接的一个或多个液位变送器；该安全控制器分别与该氧侧气液分离装置上的部分或全部液位变送器连接，并分别与氢侧气液分离装置上的部分或全部液位变送器连接；该制氢控制器分别与该氧侧气液分离装置上的部分或全部液位变送器连接，并分别与该氢侧气液分离装置上的部分或全部液位变送器连接；
其中，与该氧侧气液分离装置连接的多个液位变送器用于确定该氧侧气液分离装置的液位；与该氢侧气液分离装置连接的多个液位变送器用于确定该氢侧气液分离装置的液位。
该制氢控制系统还包括设置在该氧侧气液分离装置上的第一压力变送器，和设置在该第一阀门和该氧侧气液分离装置之间的第二压力变送器；该安全控制器至少与该第二压力变送器连接，任选地与该第一压力变送器连接；该制氢控制器至少与该第一压力变送器连接，任选地与该第二压力变送器连接。
示例地，L1、L2和L3分别为与该氧侧气液分离器连接的液位变送器，用于获取氧侧气液分离器的液位，L4、L5和L6分别为与该氢侧气液分离器连接的液位变送器，用于获取氢侧气液分离器的液位，P1和P2为压力变送器，用于获取氧侧气液分离器的气压，且上述液位变送器和压力变送器都分别与该普通控制器和安全控制器连接。
其中，设置多个液位变送器和压力变送器是为了防止单独一个液位变送器或者压力变送器可能会出现故障，并在其中任一个液位变送器或者压力变送器出现故障的情况下可以获取准确的压力和液位差，该液位变送器和该压力变送器的数量可以根据实际需求进行设置，本申请对此并不作限制。
在一种可能的实现方式中，该制氢参数包括该氧侧气液分离装置103的压力；该制氢控制器102，用于在该氧侧气液分离装置103的压力大于或者等于预设压力报警阈值的情况下，控制系统停止制氢，例如，如图2所示，可以通过控制电源停止为电解槽供电的方式控制系统停止制氢；该安全控制器101，用于在该氧侧气液分离装置103的压力大于或者等于预设压力报警阈值的情况下，连锁控制该系统停止制氢，例如，可以是连锁该普通控制器之后，通过控制电源停止为电解槽供电的方式控制系统停止制氢，并通过该第一阀
门1011调节该氧侧气液分离装置103的压力，以使该氧侧气液分离装置103泄压，如图2所示，该安全控制器可以控制控制阀1打开，对该氧侧气液分离器进行泄压。
示例地，该压力变送器获取的压力大于或等于预设压力报警阈值，该液位差处于预设液位差范围之内，表征该调节阀1、控制阀2和控制阀6中一个或者多个阀门出现故障，因此，该普通控制器可以控制电源关闭，系统停止制氢，该安全控制器连锁该普通控制器停止制氢，发出告警信息，并控制该控制阀1打开进行泄压，以便控制该氧侧气液分离器中的压力处于预设压力范围之内，并且还可以在该氧侧气液分离器中的压力处于预设压力范围之内的情况下控制电源开启继续制氢。
另外，由于该氢侧气液分离装置104与该氧侧气液分离装置103需要保持液位差处于预设液位差范围之内，因此，该制氢控制器102，还用于在该氧侧气液分离装置103的压力大于或者等于预设压力报警阈值的情况下，通过该第四阀门1022调节该氢侧气液分离装置104的压力，以使该氧侧气液分离装置103和该氢侧气液分离装置104的液位差位于预设液位差范围内，如图2所示，可以减小调节阀2的开度，或者关闭控制阀4，增加该氢侧气液分离器的气压，保持液位差处于预设液位差范围。
需要说明的是，该第一阀门1011和该第二阀门1012可以是调节阀，以便该安全控制器101控制该第一阀门1011的开度，进而控制该氧侧气液分离装置103的压力；调节阀可以为薄膜调节阀、电动调节阀或气动调节球阀，数量可以是一个也可以是多个；或者，该第一阀门1011还可以是手动阀和控制阀，该第二阀门1012也可以是手动阀和控制阀，其中，该控制阀与该安全控制器101连接，用于接受该安全控制器101的控制进行开启或者关闭，可以为截止阀、开关阀等，该手动阀用于按照预设开度进行泄压。
这样，可以在氧侧气液分离装置中的压力大于或者等于预设压力报警阈值的情况下，安全控制器控制第一阀门对该氧侧气液分离装置进行泄压，并保证该氢侧气液分离装置与该氧侧气液分离装置的液位差处于预设液位差范围，防止串液，提高了制氢系统的安全性，有利于保障生产安全，提高生产效率。
在另一种可能的实现方式中，该制氢参数还包括该氧侧气液分离装置103
与该氢侧气液分离装置104之间的液位差；该制氢控制器102，用于在该液位差大于或者等于第一预设液位差报警阈值的情况下，控制系统停止制氢，例如，如图2所示，可以通过控制电源停止为电解槽供电的方式控制系统停止制氢；该安全控制器101，用于在该液位差大于或者等于该第一预设液位差报警阈值的情况下，连锁控制该系统停止制氢，并通过该第一阀门1011调节该氧侧气液分离装置103的压力，以使该液位差下降，如图2所示，该安全控制器打开控制阀1对该氧侧气液分离器进行泄压，提高该氧侧气液分离器的液位，以使该液位差下降；或者，通过该第二阀门1012调节该氢侧气液分离装置104的液位，以使该液位差下降，如图2所示，该安全控制器打开控制阀3对该氢侧气液分离器进行泄压，提高该氢侧气液分离器的液位，以使该液位差下降。另外，为了尽快控制该液位差处于预设液位差预设范围之内，该制氢控制器，还用于在该液位差大于或者等于第一预设液位差报警阈值的情况下，通过该第三阀门调节该氧侧气液分离装置的压力，以使该液位差下降。
示例地，该液位差表征该氢侧气液分离装置104的液位减去该氧侧气液分离装置103的液位，在该液位差大于或者等于该第一预设液位差报警阈值的情况下，表征该氢侧气液分离装置104的液位过高，压力小，该第四阀门1022出现故障，无法提高该氢侧气液分离装置104的压力，因此，为了保持该液位差处于预设液位差范围之内，可以如图2所示，该安全控制器打开控制阀1对该氧侧气液分离器进行泄压，即该安全控制器101控制该第一阀门1011打开，对该氧侧气液分离装置103进行泄压，另外，为了加快液位平衡的调节速度，还可以如图2所示，该普通控制器加大调节阀1的开度，即该制氢控制器102，还用于在该液位差大于或者等于第一预设液位差报警阈值的情况下，控制该第三阀门1021加大开度，对该氧侧气液分离装置103进行泄压，以使该液位差下降；或者，
该液位差表征该氧侧气液分离装置103的液位减去该氢侧气液分离装置104的液位，在该液位差大于或者等于该第一预设液位差报警阈值的情况下，表征该氢侧气液分离装置104的液位过低，压力大，该第四阀门1022出现故障，无法降低该氢侧气液分离装置104的压力，因此，为了保持该液位差处于预设液位差范围之内，可以如图2所示，该安全控制阀控制控制阀3打开，
对该氢侧气液分离器进行泄压，即该安全控制器101控制该第二阀门1012打开，对该氢侧气液分离装置104进行泄压，另外，为了提高该液位平衡的调节速度，该制氢控制器102可以控制该第三阀门1021减小开度，控制该氧侧气液分离装置103提高压力。
这样，可以在该液位差大于或者等于第一预设液位差报警阈值的情况下，安全控制器通过该第一阀门调节该氧侧气液分离装置的压力，以使该液位差下降；或者，通过该第二阀门调节该氢侧气液分离装置的压力，以使该液位差下降，以保障该氢侧气液分离装置与该氧侧气液分离装置的液位差处于预设液位差范围，防止串液，提高了制氢系统的安全性，有利于保障生产安全，提高生产效率。
在又一种可能的实现方式中，该制氢系统还包括连接在该氧侧气液分离装置103和该氢侧气液分离装置104之间的第五阀门105，该第五阀门105与该安全控制器101连接；该安全控制器101，用于在该液位差大于或者等于第二预设液位差报警阈值的情况下，控制该第五阀门105关闭；该第二预设液位差报警阈值大于该第一预设液位差报警阈值。
例如，该第五阀门105可以是控制阀，在该制氢系统正常工作的状态下，该控制阀处于打开状态，以便该制氢系统进行制氢；在该液位差大于或者等于第二预设液位差报警阈值的情况下，该控制阀处于关闭状态，以断开该氧侧气液分离装置103和氢侧气液分离装置104之间的联通，这样，就可以彻底避免串液，提高了制氢系统的安全性。控制阀可以为本领域常规的开关阀。
又例如，该制氢参数包括该压力和该液位差，即在该压力大于或等于预设压力报警阈值，且该液位差大于或等于第一预设液位差报警阈值的情况下，表征该制氢控制器所在控制回路可能完全失去控制，该安全控制器101，可以控制电源停止输出制氢电流，该系统停止制氢；打开第一阀门1011对该氧侧气液分离装置103进行泄压，并打开第二阀门1012对该氢侧气液分离装置104进行泄压，以保持液位差处于预设液位差范围之内。如图2所示，该安全控制器打开控制阀1和控制阀3，对该氧侧气液分离器和该氢侧气液分离器进行泄压，以使该氧侧气液分离器的压力处于预设压力范围之内，且该氢侧气液分离器与该氧侧气液分离器的液位差处于预设液位差范围之内；进一步的，为了防止串液，该安全控制器101，还可以控制第五阀门105关闭，以保障系
统安全。
采用上述系统，在制氢参数大于或者等于预设参数报警阈值的情况下，通过该第一阀门调节该氧侧气液分离装置的压力，和/或，通过该第二阀门调节该氢侧气液分离装置的压力，这样，安全控制器不仅起到报警连锁作用，还可以执行安全控制功能，并且该安全控制器的控制系统独立于该制氢控制器的系统控制回路，防止该制氢控制器的系统工艺控制回路出现故障，有效保障了生产安全，提高了生产效率。
图3是本申请根据一示例性实施例示出的一种制氢控制方法，如图3所示，该方法可以应用于如图1所示的制氢控制系统，该制氢控制系统包括安全控制器、分别与该安全控制器连接的第一阀门和第二阀门、制氢控制器、分别与该制氢控制器连接的第三阀门和第四阀门、分别与该第一阀门和该第三阀门连通的氧侧气液分离装置、以及分别与该第二阀门和该第四阀门连通的氢侧气液分离装置；该方法包括：
S301、在制氢参数小于预设参数报警阈值的情况下，该制氢控制器通过该第三阀门控制该氧侧气液分离装置的压力，并通过该第四阀门控制该氢侧气液分离装置的液位。
示例地，该制氢控制器通过该第三阀门控制该氧侧气液分离装置的压力，以使该氧侧气液分离装置的压力小于预设压力报警阈值；并通过该第四阀门控制该氢侧气液分离装置的液位，以使该氧侧气液分离装置和该氢侧气液分离装置之间的液位差小于第一预设液位差报警阈值；该安全控制器仅用于接收该制氢参数，该第一阀门和第二阀门处于关闭状态；该制氢参数包括该氧侧气液分离装置的压力，以及该氧侧气液分离装置和该氢侧气液分离装置之间的液位差。
例如，可以通过调节第三阀门的开度，对该氧侧气液分离装置进行泄压；或者，调节第四阀门的开度，对该氢侧气液分离装置进行泄压。
S302、在该制氢参数大于或者等于预设参数报警阈值的情况下，该制氢控制器控制该系统停止制氢；该安全控制器连锁控制该系统停止制氢，通过该第一阀门调节该氧侧气液分离装置的压力，和/或，通过该第二阀门调节该氢侧气液分离装置的液位。
例如，可以控制该第一阀门打开，对该氧侧气液分离装置进行泄压；或
者，控制该第二阀门打开，对该氢侧气液分离装置进行泄压。
可选地，该制氢参数包括该氧侧气液分离装置的压力；该方法还包括：
在该氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，该制氢控制器控制该系统停止制氢；例如，该制氢控制器可以控制电源关闭，该系统停止制氢。
在该氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，该安全控制器连锁控制该系统停止制氢，并通过该第一阀门调节该氧侧气液分离装置的压力，以使该氧侧气液分离装置泄压。
例如，该安全控制器可以控制该第一阀门打开，对该氧侧气液分离装置进行泄压。
可选地，该方法还包括：
在该氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，该制氢控制器通过该第四阀门调节该氢侧气液分离装置的压力，以使该氧侧气液分离装置和该氢侧气液分离装置的液位差位于预设液位差范围内。
例如，该制氢控制器可以通过降低该第四阀门的开度，进而提高该氢侧气液分离装置的压力，以使该氧侧气液分离装置和该氢侧气液分离装置的液位差位于预设液位差范围内。
可选地，该制氢参数还包括该氧侧气液分离装置与该氢侧气液分离装置之间的液位差；该方法还包括：
在该液位差大于或者等于第一预设液位差报警阈值的情况下，该制氢控制器控制该系统停止制氢；
在该液位差大于或者等于该第一预设液位差报警阈值的情况下，该安全控制器连锁控制该系统停止制氢，并通过该第一阀门调节该氧侧气液分离装置的压力，以使该液位差下降；或者，通过该第二阀门调节该氢侧气液分离装置的液位，以使该液位差下降。
例如，该安全控制器可以控制该第一阀门打开，对该氧侧气液分离装置进行泄压，以使该液位差下降；或者，该安全控制器可以控制该第二阀门打开，对该氢侧气液分离装置进行泄压，以使该液位差下降。
可选地，该方法还包括：
在该液位差大于或者等于第一预设液位差报警阈值的情况下，该制氢控
制器通过该第三阀门调节该氧侧气液分离装置的压力，以使该液位差下降。
例如，该制氢控制器可以在该氢侧气液分离装置液位过高的情况下，通过加大该第三阀门的开度，以使该氧侧气液分离装置的压力降低，液位提高，降低液位差；或者在该氧侧气液分离装置液位过高的情况下，通过减小该第三阀门的开度，以使该氧侧气液分离装置的压力提高，液位降低，降低液位差。
可选地，该系统还包括连接在该氧侧气液分离装置和该氢侧气液分离装置之间的第五阀门，该第五阀门与该安全控制器连接；该方法还包括：
在该液位差大于或者等于第二预设液位差报警阈值的情况下，该安全控制器控制该第五阀门关闭；该第二预设液位差报警阈值大于该第一预设液位差报警阈值。
采用上述方法，在制氢参数大于或者等于预设参数报警阈值的情况下，通过该第一阀门调节该氧侧气液分离装置的压力，和/或，通过该第二阀门调节该氢侧气液分离装置的压力，这样，安全控制器不仅起到报警连锁作用，还可以执行安全控制功能，并且该安全控制器的控制系统独立于该制氢控制器的系统控制回路，防止该制氢控制器的系统工艺控制回路出现故障，有效保障了生产安全，提高了生产效率。
以上结合附图详细描述了本公开的优选实施方式，但是，本公开并不限于上述实施方式中的具体细节，在本公开的技术构思范围内，可以对本公开的技术方案进行多种简单变型，这些简单变型均属于本公开的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本公开对各种可能的组合方式不再另行说明。
此外，本公开的各种不同的实施方式之间也可以进行任意组合，只要其不违背本公开的思想，其同样应当视为本公开所公开的内容。
Claims (12)
- 一种制氢控制系统，其中，所述制氢控制系统包括安全控制器、分别与所述安全控制器连接的第一阀门和第二阀门、制氢控制器、分别与所述制氢控制器连接的第三阀门和第四阀门、分别与所述第一阀门和所述第三阀门连通的氧侧气液分离装置、以及分别与所述第二阀门和所述第四阀门连通的氢侧气液分离装置；所述制氢控制器，用于通过所述第三阀门控制所述氧侧气液分离装置的压力，并通过所述第四阀门控制所述氢侧气液分离装置的液位；所述安全控制器，用于在制氢参数大于或者等于预设参数报警阈值的情况下，通过所述第一阀门调节所述氧侧气液分离装置的压力，和/或，通过所述第二阀门调节所述氢侧气液分离装置的液位。
- 根据权利要求1所述的系统，其中，所述制氢参数包括所述氧侧气液分离装置的压力；所述制氢控制器，用于在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，控制所述系统停止制氢；所述安全控制器，用于在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述氧侧气液分离装置泄压。
- 根据权利要求1或2所述的系统，其中，所述制氢控制系统还包括设置在所述氧侧气液分离装置上的第一压力变送器，和设置在所述第一阀门和所述氧侧气液分离装置之间的第二压力变送器；所述安全控制器至少与所述第二压力变送器连接，任选地与所述第一压力变送器连接；所述制氢控制器至少与所述第一压力变送器连接，任选地与所述第二压力变送器连接。
- 根据权利要求1所述的系统，其中，所述制氢参数还包括所述氧侧气液分离装置与所述氢侧气液分离装置之间的液位差；所述制氢控制器，用于在所述液位差大于或者等于第一预设液位差报警阈值的情况下，控制所述系统停止制氢；所述安全控制器，用于在所述液位差大于或者等于所述第一预设液位差报警阈值的情况下，连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述液位差下降；或者，通过所述第二阀门调节所述氢侧气液分离装置的液位，以使所述液位差下降。
- 根据权利要求1或4所述的系统，其中，所述制氢控制系统还包括与所述氧侧气液分离装置连接的一个或多个液位变送器，和与所述氢侧气液分离装置连接的一个或多个液位变送器；所述安全控制器分别与所述氧侧气液分离装置上的部分或全部液位变送器连接，并分别与氢侧气液分离装置上的部分或全部液位变送器连接；所述制氢控制器分别与所述氧侧气液分离装置上的部分或全部液位变送器连接，并分别与所述氢侧气液分离装置上的部分或全部液位变送器连接；与所述氧侧气液分离装置连接的多个液位变送器用于确定所述氧侧气液分离装置的液位；与所述氢侧气液分离装置连接的多个液位变送器用于确定所述氢侧气液分离装置的液位。
- 根据权利要求1所述的系统，其中，所述系统还包括连接在所述氧侧气液分离装置和所述氢侧气液分离装置之间的第五阀门，所述第五阀门与所述安全控制器连接。
- 根据权利要求6所述的系统，其中，所述制氢参数还包括所述氧侧气液分离装置与所述氢侧气液分离装置之间的液位差；所述安全控制器，用于在所述液位差大于或者等于第二预设液位差报警阈值的情况下，控制所述第五阀门关闭；所述第二预设液位差报警阈值大于第一预设液位差报警阈值。
- 一种制氢控制方法，其中，所述方法应用于所述制氢控制系统，所述制氢控制系统包括安全控制器、分别与所述安全控制器连接的第一阀门和第二阀门、制氢控制器、分别与所述制氢控制器连接的第三阀门和第四阀门、 分别与所述第一阀门和所述第三阀门连通的氧侧气液分离装置、以及分别与所述第二阀门和所述第四阀门连通的氢侧气液分离装置；所述方法包括：在制氢参数小于预设参数报警阈值的情况下，所述制氢控制器通过所述第三阀门控制所述氧侧气液分离装置的压力，以使所述氧侧气液分离装置的压力小于预设压力报警阈值；并通过所述第四阀门控制所述氢侧气液分离装置的液位，以使所述氧侧气液分离装置和所述氢侧气液分离装置之间的液位差小于第一预设液位差报警阈值；所述安全控制器仅用于接收所述制氢参数，所述第一阀门和第二阀门处于关闭状态；所述制氢参数包括所述氧侧气液分离装置的压力，以及所述氧侧气液分离装置和所述氢侧气液分离装置之间的液位差；在所述制氢参数大于或者等于预设参数报警阈值的情况下，所述制氢控制器控制所述系统停止制氢；所述安全控制器连锁控制所述系统停止制氢，通过所述第一阀门调节所述氧侧气液分离装置的压力，和/或，通过所述第二阀门调节所述氢侧气液分离装置的液位。
- 根据权利要求8所述的方法，其中，所述制氢参数包括所述氧侧气液分离装置的压力；所述方法还包括：在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，所述制氢控制器控制所述系统停止制氢；在所述氧侧气液分离装置的压力大于或者等于预设压力报警阈值的情况下，所述安全控制器连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述氧侧气液分离装置泄压。
- 根据权利要求8所述的方法，其中，所述制氢参数还包括所述氧侧气液分离装置与所述氢侧气液分离装置之间的液位差；所述方法还包括：在所述液位差大于或者等于第一预设液位差报警阈值的情况下，所述制氢控制器控制所述系统停止制氢；在所述液位差大于或者等于所述第一预设液位差报警阈值的情况下，所述安全控制器连锁控制所述系统停止制氢，并通过所述第一阀门调节所述氧侧气液分离装置的压力，以使所述液位差下降；或者，通过所述第二阀门调 节所述氢侧气液分离装置的液位，以使所述液位差下降。
- 根据权利要求8所述的方法，其中，所述系统还包括连接在所述氧侧气液分离装置和所述氢侧气液分离装置之间的第五阀门，所述第五阀门与所述安全控制器连接；所述方法还包括：在所述液位差大于或者等于第二预设液位差报警阈值的情况下，所述安全控制器控制所述第五阀门关闭；所述第二预设液位差报警阈值大于所述第一预设液位差报警阈值。
- 一种非临时性计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现权利要求8-11中任一项所述方法的步骤。
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