CN116005171A - Water electrolysis hydrogen production system, method, equipment and medium - Google Patents
Water electrolysis hydrogen production system, method, equipment and medium Download PDFInfo
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- CN116005171A CN116005171A CN202211600492.9A CN202211600492A CN116005171A CN 116005171 A CN116005171 A CN 116005171A CN 202211600492 A CN202211600492 A CN 202211600492A CN 116005171 A CN116005171 A CN 116005171A
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Abstract
The present application provides a system, method, apparatus and medium for producing hydrogen by electrolysis of water, the system comprising: the hydrogen production device is used for obtaining a hydrogen product through water electrolysis and providing a data transmission interface of each process measuring point; the energy management module is connected with the data transmission interface of the hydrogen production device, so as to monitor the energy state and the carbon emission of the hydrogen production device according to the data of each process measuring point, and adjust equipment and/or process parameters in the hydrogen production device according to the energy state and/or the carbon emission. The method can optimize the hydrogen production process parameters in real time to carry out energy refined management.
Description
Technical Field
The invention relates to the technical field of electrolytic hydrogen production, in particular to a system, a method, equipment and a medium for producing hydrogen by water electrolysis.
Background
At present, an effective energy supervision system is lacking in a water electrolysis hydrogen production system, and technological parameters, raw materials, intermediate products, energy transfer and the like of each technological link of the hydrogen production system cannot be quantitatively analyzed, optimized and adjusted. After the hydrogen production system is combined with renewable energy sources such as photovoltaic and wind power, the power input of the hydrogen production device can also fluctuate due to the fluctuation of the renewable energy source power, and even the hydrogen production device is started and stopped frequently. The hydrogen production device is large in energy loss such as pressure relief and temperature reduction during start-up and shutdown, and the hydrogen production device is used as a chemical device, so that the safety risk is large during start-up and shutdown. The hydrogen production system is difficult to regulate and control in real time, so that the problems of extensive energy management, unclear carbon emission condition, difficult control of economy and the like of the system are caused.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a water electrolysis hydrogen production system, a method, equipment and a medium, which mainly solve the problems that the existing hydrogen production system lacks effective energy management and control and is difficult to meet the actual production and application demands.
In order to achieve the above and other objects, the present invention adopts the following technical scheme.
The present application provides
The application provides an electrolytic water hydrogen production system, comprising:
the hydrogen production device is used for obtaining a hydrogen product through water electrolysis and providing a data transmission interface of each process measuring point;
the energy management module is connected with the data transmission interface of the hydrogen production device, so as to monitor the energy state and the carbon emission of the hydrogen production device according to the data of each process measuring point, and adjust equipment and/or process parameters in the hydrogen production device according to the energy state and/or the carbon emission.
In one embodiment of the present application, the hydrogen production apparatus includes:
the power input module is used for providing electric energy required by the hydrogen production process;
the electrolysis tank module is connected with the power input module and is used for electrolyzing electrolyte in the electrolysis tank into hydrogen;
a process treatment system module for providing process treatment operations required for the hydrogen production process;
the auxiliary system module is used for providing energy consumption working media required by the process treatment system module;
the power input module, the electrolytic tank module, the process treatment system module and the auxiliary system module are connected with the energy management module through respective data transmission interfaces, and the energy state and the carbon emission of each module in the hydrogen production process are monitored through the energy management module.
In one embodiment of the present application, the energy management module includes:
the equipment and logistics management unit is used for determining the material state change quantity of the materials contained in each module and the energy consumption type and the energy consumption change quantity of the energy consumption equipment contained in each module according to the data of the corresponding process measuring points of each module;
and the energy flow statistical analysis unit is used for determining the energy variation of the corresponding module according to the material state variation.
In an embodiment of the present application, the energy management module further includes:
the carbon flow statistical analysis unit is used for determining the energy consumption type and the energy consumption variable quantity of each module according to the material state variable quantity of the materials contained in each module and the energy consumption type and the energy consumption variable quantity of the energy consumption equipment so as to determine the carbon emission quantity of each module according to the energy consumption type and the energy consumption variable quantity of each module;
the energy regulation and control unit is used for carrying out abnormal judgment according to the material state variable quantity of the materials contained in each module, the energy consumption type and energy consumption variable quantity of the energy consumption equipment, the energy variable total quantity of each module, the energy variable total quantity of the hydrogen production device and the energy consumption of unit product so as to regulate the equipment operation state and/or the technological parameters in the hydrogen production device according to the judgment result.
In an embodiment of the present application, the energy management module further includes: and the economic analysis unit is used for counting the cost which can be saved when the water electrolysis hydrogen production system is operated after the equipment operation state and/or the process parameter in the hydrogen production device are adjusted.
In an embodiment of the present application, the energy management module further includes:
the carbon flow statistical analysis unit is used for determining the energy consumption type and the energy consumption variable quantity of each module according to the material state variable quantity of the materials contained in each module and the energy consumption type and the energy consumption variable quantity of the energy consumption equipment so as to determine the carbon emission quantity of each module according to the energy consumption type and the energy consumption variable quantity of each module;
the energy regulation and control unit is used for carrying out abnormal judgment according to the material state variable quantity of the materials contained in each module, the energy consumption type and energy consumption variable quantity of the energy consumption equipment, the energy variable total quantity of each module, the energy variable total quantity of the hydrogen production device and the energy consumption of unit product so as to regulate the equipment operation state and/or the technological parameters in the hydrogen production device according to the judgment result.
In an embodiment of the present application, the energy management module further includes an attribution analysis unit, configured to invoke a corresponding preset diagnosis rule to perform abnormality diagnosis according to the abnormality information fed back by the energy regulation unit, so as to locate an abnormal position and output an adjustment suggestion.
In an embodiment of the present application, the connection manner between the energy management module and the hydrogen production device includes: the single energy management module is integrally connected with the hydrogen production device, or a plurality of energy management modules are respectively connected with each module in the hydrogen production device in a distributed mode, or the energy management modules are connected with a simulation model of the hydrogen production device.
The application also provides a regulation and control method of the water electrolysis hydrogen production system, which is applied to the water electrolysis hydrogen production system and comprises the following steps:
providing a data transmission interface of each process measuring point of the hydrogen production device, wherein the hydrogen production device generates hydrogen products through electrolysis water;
the hydrogen production device is connected with the data transmission interface so as to monitor the energy state and the carbon emission of the hydrogen production device according to the data of each process measuring point, and equipment and/or process parameters in the hydrogen production device are adjusted according to the energy state and/or the carbon emission.
In one embodiment of the present application, adjusting equipment and process parameters in the hydrogen plant based on the energy state comprises:
comparing the energy variation with a preset threshold, and if the energy variation fluctuates within the preset threshold, generating a parameter adjusting signal to adjust process parameters, wherein the process parameter adjustment at least comprises controlling the opening of valves of each process link; if the energy variation exceeds the preset threshold, generating first abnormal information, calling a corresponding preset diagnosis rule according to the first abnormal information to perform abnormal diagnosis so as to locate a first abnormal position corresponding to the first abnormal information, and generating a first correction proposal of corresponding equipment according to the first abnormal position.
In one embodiment of the present application, an apparatus for adjusting the hydrogen plant based on the carbon emissions comprises:
comparing the carbon emission amount with a preset carbon emission threshold, and outputting second abnormal information if the carbon emission amount exceeds the carbon emission threshold;
and calling a corresponding preset diagnosis rule according to the second abnormal information to perform abnormal diagnosis so as to locate a second abnormal position corresponding to the second abnormal information, and generating a second correction proposal of corresponding equipment according to the second abnormal position.
In one embodiment of the present application, after adjusting the equipment and/or process parameters in the hydrogen plant according to the energy status and/or carbon emissions, further comprises:
acquiring the adjusted energy variation and carbon emission to evaluate equipment economy indexes, wherein the economy indexes comprise carbon emission benefits, energy cost and energy saving benefits;
if the economic index does not meet the preset expected value, the equipment and/or process parameter adjustment is carried out again;
and if the economic index meets the preset expected value, reserving the adjusted equipment and/or process parameters.
The present application also provides a computer device comprising: the device comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the steps of the method for producing hydrogen by electrolyzing water when executing the computer program.
The present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method of producing hydrogen from electrolyzed water.
As described above, the system, method, apparatus and medium for producing hydrogen by electrolysis of water have the following beneficial effects.
According to the method, the energy management module is configured for the hydrogen production device, the operation condition of each process link of the hydrogen production device is monitored in real time, the energy state and the carbon emission of the hydrogen production device can be known in time, the equipment operation state or the process parameter can be adjusted according to the energy state and/or the carbon emission, meanwhile, the economy of the hydrogen production device can be estimated according to the carbon emission, and the equipment and/or the process parameter can be adjusted in the economy aspect, so that different production requirements are met.
Drawings
FIG. 1 is a block diagram of a water electrolysis hydrogen production system in accordance with one embodiment of the present invention.
FIG. 2 is a flow chart of a hydrogen production process of a hydrogen production device in an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a centralized energy management module-mounted hydrogen production system according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a hydrogen production system with distributed energy management modules according to an embodiment of the present application.
FIG. 5 is a schematic diagram of a hydrogen production system with remote on-line management and off-line simulation prediction in an embodiment of the present application.
FIG. 6 is a schematic diagram of an architecture of an energy management module according to an embodiment of the present application.
FIG. 7 is a logic diagram of an energy modulation warning in an embodiment of the present application.
FIG. 8 is a schematic flow chart of a method for producing hydrogen by water electrolysis in an embodiment of the present application.
Fig. 9 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Referring to FIG. 1, the present invention provides a water electrolysis hydrogen production system comprising a hydrogen production plant and an energy management module. Corresponding process measuring points can be arranged on each process link of the hydrogen production device, and operation data of the corresponding process links, including valve opening, electrolytic water flow, hydrogen production, oxygen production, cooling water flow and the like, are collected through sensors, such as thermocouples, pressure sensors, flow sensors and the like. And feeding back the operation data of the process measurement points to the energy management module through a preconfigured interface.
Referring to fig. 2, fig. 2 is a flow chart of a hydrogen production process of a hydrogen production device according to an embodiment of the present application. The hydrogen production device can be split into a plurality of modules according to the hydrogen production process links according to the hydrogen production process flow chart. In an embodiment, a hydrogen plant may include a power input module, an electrolyzer module, a process treatment system module, and an auxiliary system module. The power input module is used for providing electric energy required by the hydrogen production process; the electrolysis tank module is connected with the power input module and is used for electrolyzing electrolyte in the electrolysis tank into hydrogen; a process treatment system module for providing process treatment operations required for the hydrogen production process; the auxiliary system module is used for providing energy consumption working media required by the process treatment system module; the power input module, the electrolytic tank module, the process treatment system module and the auxiliary system module are connected with the energy management module through respective data transmission interfaces, and the energy state and the carbon emission of each module in the hydrogen production process are monitored through the energy management module. The energy-consuming working medium is a working substance which is consumed in the production process, is not used as a raw material, does not enter a product, and needs to directly consume energy during production or preparation. Illustratively, the energy consuming working fluid of the hydrogen plant may include: pure water, purified wind, etc.
In one embodiment, a process processing system module includes: gas-liquid separation module, separation purification drying module etc., auxiliary system module includes: pure water module, purified air module, and circulating water system module. The power input module manages the power data input into the hydrogen production device and provides power energy required by hydrogen production for the electrolytic tank module, the gas-liquid separation module and the separation purification drying module. The electrolysis tank module is connected with the power input module and is used for electrolyzing electrolyte in the electrolysis tank into hydrogen; the gas-liquid separation module is connected with the electrolytic tank module and the power input module and is used for receiving the electrolyte containing hydrogen output by the electrolytic tank module and separating the hydrogen from the electrolyte; the separation, purification and drying module is connected with the gas-liquid separation module and the power input module and is used for carrying out oxygen separation and water vapor filtration on the hydrogen output by the gas-liquid separation module to obtain a hydrogen product; the circulating water system module is connected with the gas-liquid separation module and the separation, purification and drying module and is used for providing cooling water; the electric power input module, the electrolytic tank module, the gas-liquid separation module, the separation and purification drying module and the circulating water system module are connected with the energy management module through respective data transmission interfaces, and the energy state and the carbon emission of each module in the hydrogen production process are monitored through the energy management module.
In an embodiment, under the condition that the energy supply scene and the source are not limited to the power and circulating water system module in the above illustration, a sub-module can be added according to more kinds of energy sources, such as a steam system module when steam heating is adopted, a pure water module matched with equipment, a purified air module and the like. And obtaining the data related to energy transfer by monitoring the data of the process measuring points of each module.
In one embodiment, the energy management module is coupled to the hydrogen plant in a manner that includes: the single energy management module is integrally connected with the hydrogen production device; or a plurality of energy management modules are respectively connected with each module in the hydrogen production device in a distributed mode, or the energy management modules are connected with a simulation model of the hydrogen production device. Specifically, when a single integrated connection is adopted, a single energy management module is adopted to realize energy management of the hydrogen production device, and when a distributed connection mode is adopted, data can be shared among the energy management modules, and the energy management modules can exist in a hardware form or a simulation model form, so that the energy management device is not limited.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a centralized hydrogen production system with an energy management module according to an embodiment of the present application. The flow-energy flow-carbon flow management system MECS in fig. 3 is an energy management module in the embodiment of the present application. The water flows into the electrolytic tank through the water pump, and oxygen and hydrogen are generated through the electrolytic water, so that the water, the oxygen and the hydrogen are used as the material flow of the process link of the electrolytic tank. Because the material flow carries energy, taking water as an example, the water has internal energy and potential energy corresponding to the temperature and the pressure of the water, the water can be used as a carrier for energy transfer, the internal energy and the potential energy are transferred to carriers such as electrolytic hydrogen, oxygen or cooling water, and the like, and the water pump needs to consume electric energy when working, and the energy is consumed on the material flow and equipment, and the flow direction is corresponding to the energy flow. If the electricity is generated by consuming fossil energy to generate electricity, the electricity has carbon attribute, and the corresponding standard of how much carbon is discharged for each degree of electricity is provided, so that the carbon discharged flows to the corresponding process link when the electricity is consumed in the link of the hydrogen production device, and the carbon discharged generated along with the material or energy flow is carbon flow. After the operation data of the process measurement points are fed back to each energy management module, the energy management modules can identify and sort parameters of each process module. Such as a table of device operation in real time or at intervals as desired. And selectively uploading the material flow data through the data transmission interfaces at the corresponding positions so as to perform energy flow and carbon flow analysis based on the material flow data of the process links.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a hydrogen production system with distributed energy management modules according to an embodiment of the present application. In a distributed mounting manner, the modules of each process link can be connected with an energy management Module (MECS) through a data transmission interface which is preconfigured in the modules. The distributed energy management modules may be primary or backup devices to each other. And after the operation data of the corresponding process links are processed, the energy management modules can selectively upload and share the data, and the overall energy state and the carbon emission income are calculated based on the uploaded and shared data.
Please refer to fig. 5, fig. 5 is a schematic structural diagram of a hydrogen production system with remote online management and offline simulation prediction in an embodiment of the present application. When the remote terminal is connected with the hydrogen production device on the left side of the dotted line, remote on-line management can be realized. The operation state of the hydrogen production device at the left side of the broken line can be simulated directly at the remote terminal through simulation software, and the energy state and the carbon emission condition of the simulated hydrogen production device can be predicted in an off-line prediction mode. Specifically, each process link of the current hydrogen production device can be simulated on the remote terminal to obtain a simulation system of the hydrogen production device, and the input data flow of the simulation system is consistent with the input data flow of the actual hydrogen production device. The energy management module can be connected with the simulation system through the data transmission interface to realize remote off-line or on-line carrying. And calculating and predicting the energy flow condition and carbon income under the input condition of the simulation system according to the data flow input of each module in the simulation system, thereby assisting in the parameter optimization and benefit optimization of the hydrogen production device. Wherein the data flow can comprise alkali liquor of an alkali liquor cooler, cold water taking of a circulating cooling water system, water for electrolysis, hydrogen, water vapor and the like.
In an embodiment, the energy management module may include:
the equipment and logistics management unit is used for determining the material state change quantity of the materials contained in each module and the energy consumption type and the energy consumption change quantity of the energy consumption equipment contained in each module according to the data of the corresponding process measuring points of each module; specifically, the state input quantity and the state output quantity of the materials contained in each module are determined according to the data of the process measurement points corresponding to each module, the state change quantity of the materials is calculated according to the state input quantity and the state output quantity of the materials, the state change quantity of the materials not only refers to the quality change of the materials, but also includes the change of attribute indexes of the materials such as temperature, pressure change and gas-liquid phase fraction, the energy state of the materials at the moment can be calculated according to the attribute indexes, the process measurement points are the indexes, the energy consumption type and the energy consumption change quantity of the energy consumption equipment can be calculated according to the data of the process measurement points corresponding to the energy consumption equipment contained in each module, and the materials contained in each module can be: the electrolyte, cooling medium such as cooling water, hydrogen, oxygen, etc. may be adjusted according to specific production requirements, and are not limited herein. The energy consumption refers to consumed energy, and the form of the energy is not limited, and for example, consumed electric energy, biomass energy, heat energy and the like can be used.
The energy flow statistical analysis unit is used for determining the energy change quantity of the corresponding module according to the material state change quantity;
the carbon flow statistical analysis unit is used for determining the power consumption of the corresponding module according to the material state change quantity so as to determine the carbon emission quantity of the corresponding module according to the power consumption;
the energy regulation and control unit is used for carrying out abnormal judgment according to the material state variable quantity of the materials contained in each module, the energy consumption type and energy consumption variable quantity of the energy consumption equipment, the energy variable total quantity of each module, the energy variable total quantity of the hydrogen production device and the energy consumption of unit product so as to adjust the equipment running state and/or the technological parameters in the hydrogen production device according to the judgment result; specifically, when the judgment result is abnormal, abnormal warning information is output, such as warning through a buzzer, an indicator lamp and the like, or warning information is sent to appointed personnel through mail, short messages and the like.
And the economic analysis unit is used for counting the cost which can be saved when the water electrolysis hydrogen production system is operated after the equipment operation state and/or the process parameter in the hydrogen production device are adjusted. For example, in the case that renewable energy exists or fluctuates, if fossil energy is used instead of renewable energy, the amount of carbon emissions may exceed the standard, and at this time, the renewable energy is switched to supply by adjustment, so that the amount of carbon emissions is reduced.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating an architecture of an energy management module according to an embodiment of the present application. In fig. 6, the equipment+logistics management module 6.1 (i.e. the logistics management unit) receives logistics and energy consumption information collected by each process measurement point of the hydrogen production device as data by the equipment+logistics management module 6.1, and determines the logistics state change amount of the corresponding process link. The change in the physical distribution state and the energy consumption information are input to the energy flow statistical analysis module 6.2 (i.e. the energy flow statistical analysis unit). The energy flow statistical analysis module 6.2 determines the energy change quantity of the corresponding process link according to the physical distribution state change quantity and the energy consumption information, judges whether the energy fluctuation is in a controllable range according to the energy change quantity, and feeds back alarm information to the energy flow regulation and control warning module 6.3 (and the energy regulation and control warning unit) if the energy fluctuation is out of the controllable range. The energy flow regulation and control warning module 6.3 generates a warning signal so that maintenance personnel can carry out equipment maintenance or process parameter adjustment according to the warning signal. The plant + stream management module 6.1 may also output the energy consumption information to the carbon flow statistical analysis module 6.4 (i.e., the aforementioned carbon flow statistical analysis unit). The carbon flow statistical analysis module 6.4 performs carbon profit calculation. Finally, the economic analysis is carried out by combining the feedback data of the carbon flow statistical analysis module 6.4, the energy flow regulation and control warning module 6.3 and the energy flow statistical analysis module 6.2 through the economic analysis module 6.5 (namely the economic analysis unit), and the economic efficiency of the current hydrogen production device is estimated through the calculation of carbon benefits, the calculation of energy costs and the calculation of energy benefits after adjustment.
In an embodiment of the present application, the energy management module further includes an attribution analysis unit, configured to invoke a corresponding preset diagnosis rule to perform an abnormality diagnosis according to the abnormality information fed back by the energy regulation unit, so as to locate an abnormality position and output an adjustment suggestion.
Referring to fig. 7, fig. 7 is a logic diagram of an energy modulation warning according to an embodiment of the present application. And comparing the parameter with a preset threshold through parameter comparison, and if the parameter fluctuates within the preset threshold, calling a preset parameter adjustment scheme according to the fluctuation range and other data to adjust the parameter. And if the parameter fluctuation exceeds a preset threshold value, calling the attribution analysis unit to perform problem diagnosis. When the equipment energy consumption or the material flow energy fluctuates within the threshold value, the 6.3 module automatically feeds back a signal to the 6.1 and the related valve on the equipment process side, and the fluctuation is regulated and controlled in real time, for example, the opening of the valve on the process side is regulated, so that the material flow parameter is regulated. When the alarm diagnosis is presumed that the process side index exceeds the threshold value, the energy flow regulation and control warning module sends out a modified parameter regulating signal, and the parameter regulating signal of the exceeding threshold value deviation is manually confirmed or is output after being modified by manpower in consideration of the safety and operability of the system, and the fluctuation in the threshold value is regulated and controlled by the 6.3 module; when the alarm diagnosis is that the equipment side performance deviation causes the alarm, the equipment needs to be overhauled, modified or replaced, at the moment, the 6.3 module only plays an alarm role, and after the alarm warning prompt is ignored/suspended, the equipment is modified by the factory.
Taking heat exchanger energy flow data as an example, the corresponding scene is: the scale formation and leakage of the alkali liquor heat exchanger lead to the deterioration of the heat exchange effect of the heat exchanger, and the temperature of the outlet of the circulating alkali liquor rises and the consumption of the circulating water and cold water becomes large. The energy flow statistical analysis module 6.2 inputs the temperature difference of the return water on the alkali liquor of the alkali liquor heat exchanger and the cooling load of the heat exchanger. Parameter calibration is carried out: the consumption of circulating cold water is unchanged, the temperature difference of return water on alkali liquor is reduced, and alarm information is output, so that heat exchange is incomplete. Diagnosing according to the alarm information: firstly judging whether the rising of the water temperature of the circulating water in summer is possible, performing water temperature calibration, and eliminating the possibility if the temperature difference of the cooling water is calibrated; further judging whether the increase of the alkali liquor flow is possible, so that the cooling water quantity is insufficient, and if the temperature of the electrolytic cell is compared with the standard, the input power is compared with the standard, and the circulating alkali liquor flow is compared with the standard, eliminating the possibility; and judging whether the heat exchange effect of the heat exchanger is possibly poor, and warning the possibility of equipment performance deviation, which is possibly caused by heat exchanger scaling, heat exchanger blockage and the like, suggesting to check and correct and generate correction suggestions.
In one embodiment, the hydrogen production process is easily affected by input power, and according to the process flow, when the power input is reduced, the hydrogen production amount of the equipment is reduced, and under the control of the temperature control of the electrolytic tank, the flow of the circulating alkali liquid is reduced, if the flow of the circulating water system is not reduced, the waste of the circulating water amount is caused, and the power consumption of the circulating water pump is increased due to the increase of the running flow of the pump; meanwhile, the hydrogen production amount is reduced, so that the hydrogen yield of the gas-liquid separation and purification drying module is reduced, the electricity consumption required by heating the deoxidization reactor and the dryer to 170 ℃ is reduced, and the circulating water flow required by cooling and separation is reduced. Therefore, through the real-time monitoring of logistics and energy flow change, corresponding process parameters can be adjusted in real time, and unnecessary resource waste is reduced.
Taking a hydrogen production system with 100Nm3/h as an example, an energy management module is carried, the given scenario is as follows: (1) the input power of the electrolytic tank is grid power, and the electric power is 460kW;
(2) the inlet and outlet temperatures of the alkali liquor cooler are 95 ℃ and 75 ℃, the flow rate of the circulating alkali liquor is 8t/h, the return water temperature on the circulating cooling water is 32 ℃ and 40 ℃ respectively, and the flow rate is 18.7t/h.
(3) The deoxidizer and the dryer are heated to 170 ℃ by adopting electric heating, and the electricity consumption is about 10kW.
(4) And switching the power supply of the device into new energy power with the power of 400kW.
The equipment-logistics management module processes data including detection point data flow, temperature, pressure, flow, electricity consumption and various real-time parameters, and the average flow of circulating water in short time is 18.7t/h by means of data identification, classification and data processing in a specific period of time.
The energy flow statistical analysis unit obtains key equipment point parameters as input, and calculates the load of a cold area of the heat exchanger to be 168kW and the heat load of a heater of the dryer to be 10kW; the total system power consumption is 470kW, the circulating water consumption is 20t/h, the total energy consumption is 104.6kgeo/h, and the total power consumption is more than 98.8 percent.
And the energy flow regulating and controlling unit is used for regulating and controlling the water flow of the circulating water to be 7t/h, regulating and controlling the circulating water flow to be 16.4t/h in real time and reducing the electric power of the deoxidizer and the dryer through key parameter identification, such as identification of the inlet and outlet parameters of the circulating alkali liquid and the heat exchanger on standard or alkali liquid flow reduction.
The carbon flow statistical analysis unit is used for identifying the consumption of fossil energy, the power consumption of a power grid is 460kW, and the carbon emission is 323.61kg CO2/h; the new energy power 400kW carbon emission is 0.
The economic analysis unit calculates carbon emission benefits, energy cost and energy saving benefits, saves 2.3t/h of circulating water, and saves 4.6 yuan/h of circulating water when the price of the circulating water is 0.2 yuan/t (the power consumption of a water pump is reduced and is ignored); and the new energy power is adopted, and according to the market carbon price of 58 yuan/ton, if the CCER project is participated, the carbon benefit is 18.77 yuan/h.
In one embodiment, as shown in FIG. 8, a method for producing hydrogen from electrolyzed water is provided, comprising the steps of:
step S800, providing data transmission interfaces of all process measuring points of the hydrogen production device, wherein the hydrogen production device generates hydrogen products through electrolysis water;
step S801, the hydrogen production device is connected through the data transmission interface, so as to monitor the energy state and the carbon emission of the hydrogen production device according to the data of each process measurement point, and adjust the equipment and/or process parameters in the hydrogen production device according to the energy state and/or the carbon emission.
In an embodiment, the energy variation is compared with a preset threshold, if the energy variation fluctuates within the preset threshold, a parameter adjusting signal is generated to adjust process parameters, and the process parameter adjustment at least comprises controlling the opening of valves of each process link; if the energy variation exceeds the preset threshold, generating first abnormal information, calling a corresponding preset diagnosis rule according to the first abnormal information to perform abnormal diagnosis so as to locate a first abnormal position corresponding to the first abnormal information, and generating a first correction proposal of corresponding equipment according to the first abnormal position.
In one embodiment, adjusting the equipment in the hydrogen plant based on the carbon emissions comprises:
comparing the carbon emission amount with a preset carbon emission threshold, and outputting second abnormal information if the carbon emission amount exceeds the carbon emission threshold;
and calling a corresponding preset diagnosis rule according to the second abnormal information to perform abnormal diagnosis so as to locate a second abnormal position corresponding to the second abnormal information, and generating a second correction proposal of corresponding equipment according to the second abnormal position.
In one embodiment, after adjusting the equipment and/or process parameters in the hydrogen plant based on the energy status and/or carbon emissions, further comprises:
acquiring the adjusted energy variation and carbon emission to evaluate equipment economy indexes, wherein the economy indexes comprise carbon emission benefits, energy cost and energy saving benefits;
if the economic index does not meet the preset expected value, the equipment and/or process parameter adjustment is carried out again;
and if the economic index meets the preset expected value, reserving the adjusted equipment and/or process parameters.
The above-described method of producing hydrogen from electrolyzed water may be implemented in the form of a computer program that is run on a computer apparatus as shown in FIG. 9. A computer device, comprising: memory, a processor, and a computer program stored on the memory and executable on the processor.
The modules in the above-described electrolytic water hydrogen production system may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules can be embedded in the memory of the terminal in a hardware form or independent of the terminal, and can also be stored in the memory of the terminal in a software form, so that the processor can call and execute the operations corresponding to the above modules. The processor may be a Central Processing Unit (CPU), microprocessor, single-chip microcomputer, etc.
As shown in fig. 9, a schematic diagram of the internal structure of the computer device in one embodiment is shown. There is provided a computer device comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of: acquiring monitoring data of logistics of each process link in the hydrogen production process, wherein the logistics comprise: electrolyzed water, hydrogen, oxygen, cooling water and cooling alkali liquor; determining the logistics change quantity and the energy change quantity of each process link according to the monitoring data; determining the carbon emission amount of the corresponding process link according to the logistics variation; and performing equipment maintenance or process parameter adjustment according to the energy variation and the carbon emission.
In an embodiment, the processor performs equipment maintenance or process parameter adjustment according to the energy variation and the carbon emission, including: comparing the energy variation with a preset threshold, and if the energy variation fluctuates within the preset threshold, generating a parameter adjusting signal to adjust process parameters, wherein the process parameter adjustment comprises controlling the opening of each process link valve; if the energy variation exceeds the preset threshold, generating alarm information, and calling a corresponding preset diagnosis rule according to the alarm information to perform abnormality diagnosis so as to locate an abnormal position and generate a correction proposal according to the abnormal position; and comparing the carbon emission amount with a preset carbon emission threshold, and outputting warning information if the carbon emission amount exceeds the carbon emission threshold.
In an embodiment, when the processor executes the foregoing process, after performing equipment maintenance or process parameter adjustment according to the energy variation and the carbon emission, the process further includes: acquiring the adjusted energy variation and carbon emission to evaluate equipment economy indexes, wherein the economy indexes comprise carbon emission benefits, energy cost and energy saving benefits; if the economic index does not meet the preset expected value, the equipment and/or process parameter adjustment is carried out again; and if the economic index meets the preset expected value, reserving the adjusted equipment and/or process parameters.
In one embodiment, the computer device may be used as a server, including but not limited to a stand-alone physical server, or a server cluster formed by a plurality of physical servers, and may also be used as a terminal, including but not limited to a mobile phone, a tablet computer, a personal digital assistant, a smart device, or the like. As shown in fig. 9, the computer device includes a processor, a non-volatile storage medium, an internal memory, a display screen, and a network interface connected by a system bus.
Wherein the processor of the computer device is configured to provide computing and control capabilities to support the operation of the entire computer device. The non-volatile storage medium of the computer device stores an operating system and a computer program. The computer program is executable by a processor for implementing a method for producing hydrogen by electrolysis of water as provided in the various embodiments above. Internal memory in a computer device provides a cached operating environment for an operating system and computer programs in a non-volatile storage medium. The display interface can display data through the display screen. The display screen may be a touch screen, such as a capacitive screen or an electronic screen, and the corresponding instruction may be generated by receiving a click operation on a control displayed on the touch screen.
It will be appreciated by those skilled in the art that the architecture of the computer device illustrated in fig. 9 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than those illustrated, or may combine some components, or have a different arrangement of components.
In one embodiment, a computer readable storage medium is provided having stored thereon a computer program which when executed by a processor performs the steps of: acquiring monitoring data of logistics of each process link in the hydrogen production process, wherein the logistics comprise: electrolyzed water, hydrogen, oxygen, cooling water and cooling alkali liquor; determining the logistics change quantity and the energy change quantity of each process link according to the monitoring data; determining the carbon emission amount of the corresponding process link according to the logistics variation; and performing equipment maintenance or process parameter adjustment according to the energy variation and the carbon emission.
In an embodiment, the computer program, when executed by the processor, performs equipment maintenance or process parameter adjustment according to the energy variation and the carbon emission, including: comparing the energy variation with a preset threshold, and if the energy variation fluctuates within the preset threshold, generating a parameter adjusting signal to adjust process parameters, wherein the process parameter adjustment comprises controlling the opening of each process link valve; if the energy variation exceeds the preset threshold, generating alarm information, and calling a corresponding preset diagnosis rule according to the alarm information to perform abnormality diagnosis so as to locate an abnormal position and generate a correction proposal according to the abnormal position; and comparing the carbon emission amount with a preset carbon emission threshold, and outputting warning information if the carbon emission amount exceeds the carbon emission threshold.
In an embodiment, the computer program, when executed by the processor, further comprises, after performing equipment maintenance or process parameter adjustment according to the energy variation and the carbon emission, the following steps: acquiring the adjusted energy variation and carbon emission to evaluate equipment economy indexes, wherein the economy indexes comprise carbon emission benefits, energy cost and energy saving benefits; if the economic index does not meet the preset expected value, the equipment and/or process parameter adjustment is carried out again; and if the economic index meets the preset expected value, reserving the adjusted equipment and/or process parameters.
Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or the like.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (13)
1. A system for producing hydrogen by electrolysis of water, comprising:
the hydrogen production device is used for obtaining a hydrogen product through water electrolysis and providing a data transmission interface of each process measuring point;
the energy management module is connected with the data transmission interface of the hydrogen production device, so as to monitor the energy state and the carbon emission of the hydrogen production device according to the data of each process measuring point, and adjust equipment and/or process parameters in the hydrogen production device according to the energy state and/or the carbon emission.
2. The water electrolysis hydrogen production system of claim 1, wherein the hydrogen production plant comprises:
the power input module is used for providing electric energy required by the hydrogen production process;
the electrolysis tank module is connected with the power input module and is used for electrolyzing electrolyte in the electrolysis tank into hydrogen;
a process treatment system module for providing process treatment operations required for the hydrogen production process;
the auxiliary system module is used for providing energy consumption working media required by the process treatment system module;
the power input module, the electrolytic tank module, the process treatment system module and the auxiliary system module are connected with the energy management module through respective data transmission interfaces, and the energy state and the carbon emission of each module in the hydrogen production process are monitored through the energy management module.
3. The water electrolysis hydrogen production system of claim 1, wherein the energy management module comprises:
the equipment and logistics management unit is used for determining the material state change quantity of the materials contained in each module and the energy consumption type and the energy consumption change quantity of the energy consumption equipment contained in each module according to the data of the corresponding process measuring points of each module;
and the energy flow statistical analysis unit is used for determining the energy variation of the corresponding module according to the material state variation.
4. The water electrolysis hydrogen production system of claim 3, wherein said energy management module further comprises:
the carbon flow statistical analysis unit is used for determining the energy consumption type and the energy consumption variable quantity of each module according to the material state variable quantity of the materials contained in each module and the energy consumption type and the energy consumption variable quantity of the energy consumption equipment so as to determine the carbon emission quantity of each module according to the energy consumption type and the energy consumption variable quantity of each module;
the energy regulation and control unit is used for carrying out abnormal judgment according to the material state variable quantity of the materials contained in each module, the energy consumption type and energy consumption variable quantity of the energy consumption equipment, the energy variable total quantity of each module, the energy variable total quantity of the hydrogen production device and the energy consumption of unit product so as to regulate the equipment operation state and/or the technological parameters in the hydrogen production device according to the judgment result.
5. The water electrolysis hydrogen production system of claim 4, wherein said energy management module further comprises: and the economic analysis unit is used for counting the cost which can be saved when the water electrolysis hydrogen production system is operated after the equipment operation state and/or the process parameter in the hydrogen production device are adjusted.
6. The water electrolysis hydrogen production system of claim 4, wherein the energy management module further comprises an attribution analysis unit for invoking a corresponding preset diagnostic rule to perform an abnormality diagnosis according to the abnormality information fed back by the energy regulation unit to locate an abnormality position and output an adjustment suggestion.
7. The water electrolysis hydrogen production system of claim 1, wherein the energy management module is connected to the hydrogen production device in a manner comprising: the single energy management module is integrally connected with the hydrogen production device, or a plurality of energy management modules are respectively connected with each module in the hydrogen production device in a distributed mode, or the energy management modules are connected with a simulation model of the hydrogen production device.
8. A method of controlling a water electrolysis hydrogen production system, applied to the water electrolysis hydrogen production system as claimed in any one of claims 1 to 7, comprising:
providing a data transmission interface of each process measuring point of the hydrogen production device, wherein the hydrogen production device generates hydrogen products through electrolysis water;
the hydrogen production device is connected with the data transmission interface so as to monitor the energy state and the carbon emission of the hydrogen production device according to the data of each process measuring point, and equipment and/or process parameters in the hydrogen production device are adjusted according to the energy state and/or the carbon emission.
9. The method of claim 8, wherein adjusting equipment and process parameters in the hydrogen plant based on the energy state comprises:
comparing the energy variation with a preset threshold, and if the energy variation fluctuates within the preset threshold, generating a parameter adjusting signal to adjust process parameters, wherein the process parameter adjustment at least comprises controlling the opening of valves of each process link; if the energy variation exceeds the preset threshold, generating first abnormal information, calling a corresponding preset diagnosis rule according to the first abnormal information to perform abnormal diagnosis so as to locate a first abnormal position corresponding to the first abnormal information, and generating a first correction proposal of corresponding equipment according to the first abnormal position.
10. The method of claim 9, wherein adjusting equipment in the hydrogen plant based on the carbon emissions comprises:
comparing the carbon emission amount with a preset carbon emission threshold, and outputting second abnormal information if the carbon emission amount exceeds the carbon emission threshold;
and calling a corresponding preset diagnosis rule according to the second abnormal information to perform abnormal diagnosis so as to locate a second abnormal position corresponding to the second abnormal information, and generating a second correction proposal of corresponding equipment according to the second abnormal position.
11. The method of claim 10, further comprising, after adjusting equipment and/or process parameters in the hydrogen plant based on the energy status and/or carbon emissions:
acquiring the adjusted energy variation and carbon emission to evaluate equipment economy indexes, wherein the economy indexes comprise carbon emission benefits, energy cost and energy saving benefits;
if the economic index does not meet the preset expected value, the equipment and/or process parameter adjustment is carried out again;
and if the economic index meets the preset expected value, reserving the adjusted equipment and/or process parameters.
12. A computer device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method for producing hydrogen by electrolysis of water according to any one of claims 8 to 11 when the computer program is executed by the processor.
13. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the method of producing hydrogen by electrolysis of water according to any one of claims 8 to 11.
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