CN113481526A - Intelligent test system and method for multi-channel electrolytic cell - Google Patents
Intelligent test system and method for multi-channel electrolytic cell Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 236
- 229910001868 water Inorganic materials 0.000 claims abstract description 236
- 239000001257 hydrogen Substances 0.000 claims abstract description 100
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 100
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 230000008569 process Effects 0.000 claims abstract description 51
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 47
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000001301 oxygen Substances 0.000 claims abstract description 26
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims description 61
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 23
- 150000002431 hydrogen Chemical class 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 12
- 238000010998 test method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 26
- 230000002159 abnormal effect Effects 0.000 description 19
- 238000012545 processing Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 7
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- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
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- C—CHEMISTRY; METALLURGY
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- C25B1/00—Electrolytic production of inorganic compounds or non-metals
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- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
- C25B15/023—Measuring, analysing or testing during electrolytic production
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- C25B15/00—Operating or servicing cells
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Abstract
本发明提供一种多通道电解槽的智能测试系统及方法，多通道电解槽为每个通道设置有一个电解槽，每个电解槽对纯水进行电解得到氢气和氧气；智能测试系统包括多通道电解槽、检测单元和控制单元；每个电解槽的入口通过进水管道通入纯水；所述电解槽电解产生的氧气和所述纯水通过出水管道排出；所述电解槽电解产生的氢气通过出氢管道排出；检测单元用于检测多通道电解槽在电解过程中的参数数据；所述参数数据包括产物数据，产物数据为通过所述出水管道和所述出氢管道检测到的信号数据；所述控制单元通信连接所述检测单元，所述控制单元接收所述参数数据，并根据所述参数数据得到测试结果。本发明能够有效提高多通道电解槽测试结果的可靠性和测试效率。
The invention provides an intelligent testing system and method for a multi-channel electrolytic cell. The multi-channel electrolytic cell is provided with an electrolytic cell for each channel, and each electrolytic cell electrolyzes pure water to obtain hydrogen and oxygen. The intelligent testing system includes a multi-channel electrolytic cell. An electrolytic cell, a detection unit and a control unit; the inlet of each electrolytic cell is fed with pure water through a water inlet pipe; the oxygen produced by the electrolysis of the electrolytic cell and the pure water are discharged through the water outlet pipe; the hydrogen produced by the electrolysis of the electrolytic cell It is discharged through the hydrogen outlet pipeline; the detection unit is used to detect the parameter data of the multi-channel electrolyzer during the electrolysis process; the parameter data includes product data, and the product data is the signal data detected through the water outlet pipeline and the hydrogen outlet pipeline. ; The control unit is communicatively connected to the detection unit, the control unit receives the parameter data, and obtains a test result according to the parameter data. The invention can effectively improve the reliability and test efficiency of the multi-channel electrolytic cell test results.
Description
Technical Field
The invention relates to the technical field of electrolytic cell testing, in particular to an intelligent testing system and method for a multi-channel electrolytic cell.
Background
With the development of social economy, the world 'energy crisis' is increasingly intensified, and people pay more and more attention to the search and development of renewable green energy. Hydrogen energy is a clean and renewable green energy source and is currently attracted by the attention of people in the world. Besides being used as a green energy source, hydrogen also has a very wide biological value. There are professors and studies that have confirmed that hydrogen helps the human body to keep healthy because hydrogen can scavenge harmful malignant radicals in the body by selective antioxidant action.
The water electrolysis hydrogen production mainly comprises three technologies, namely alkaline water electrolysis hydrogen production, Proton Exchange Membrane (PEM) water electrolysis hydrogen production and solid oxide water electrolysis hydrogen production. The PEM water electrolyzer (hereinafter referred to as electrolyzer) can work under high current density, has small volume and high efficiency, and the purity of the generated hydrogen can reach 99.9 percent, so the PEM water electrolyzer is considered to be the water electrolysis technology with the greatest development prospect.
The core component of the electrolysis equipment is an electrolysis bath. The electrolytic bath consists of a conductive polar plate, an electrolytic cavity, a proton membrane electrode coated with a catalyst and the like. Connecting the anode and the cathode of the electrolytic cell to an external direct current power supply, and electrolyzing water on the surfaces of the two sides of the proton membrane to separate out hydrogen and oxygen respectively under the action of the catalyst. The related performance test is needed after the production and assembly of the electrolytic cell, at present, the anode and the cathode of the electrolytic cell are usually connected to an external test power supply, pure water is introduced into the anode of the electrolytic cell, after the required current is given, the cell pressure of the electrolytic cell is measured and recorded, and the hydrogen and oxygen discharge conditions of the electrolytic cell are observed manually. If a large number of electrolytic cells need to be tested, the existing testing method has the defects of high labor intensity, low reliability, low intelligent degree and the like, and the efficiency of electrolytic cell testing is greatly reduced.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides an intelligent testing system and method for a multi-channel electrolyzer, which is used to solve the problem of low testing efficiency of the electrolyzer in the prior art.
In order to achieve the above objects and other related objects, the present invention provides an intelligent test system for a multi-channel electrolytic cell, wherein the multi-channel electrolytic cell is provided with one electrolytic cell for each channel, and the electrolytic cell electrolyzes pure water to obtain hydrogen and oxygen; characterized in that, the intelligent test system includes:
the inlet of each electrolytic cell is filled with pure water through a water inlet pipeline; oxygen and the water generated by the electrolysis of the electrolytic cell are discharged through a water outlet pipeline; hydrogen generated by electrolysis of the electrolytic cell is discharged through a hydrogen outlet pipeline;
the detection unit is used for detecting parameter data of the multi-channel electrolytic cell in the electrolytic process; the parameter data comprises product data, and the product data is signal data detected by the water outlet pipeline and the hydrogen outlet pipeline;
and the control unit is in communication connection with the detection unit, receives the parameter data and obtains a test result according to the parameter data.
Preferably, the hydrogen sensor is arranged on the hydrogen outlet pipeline and used for detecting a hydrogen signal generated by electrolysis;
and the water flow sensor is arranged on the water outlet pipeline and used for detecting and obtaining electric signals corresponding to the water and the oxygen in the water outlet pipeline.
Preferably, the product data is the hydrogen signal and the electrical signals corresponding to the water and oxygen in the outlet conduit.
Preferably, the detection unit further comprises a liquid level sensor, wherein the liquid level sensor is arranged in a water tank for supplying pure water to the multi-channel electrolytic cell and is used for detecting the liquid level of water in the water tank.
Preferably, the parameter data further comprises liquid level data, and the liquid level data indicates that the liquid level in the water tank reaches an upper liquid level limit or a lower liquid level limit.
Preferably, the detection unit further comprises a TDS sensor disposed in a tank that provides pure water to the multi-channel electrolytic cell for detecting the content of total dissolved solids in the tank.
Preferably, the parameter data further comprises fixed data, the fixed data being the content of total dissolved solids in the water tank.
Preferably, the water inlet pipeline is provided with a filter for purifying water in the water inlet pipeline.
Preferably, the water inlet pipeline is further provided with a circulating pump, one end of the circulating pump is connected with a water outlet of the water tank for providing pure water for the multi-channel electrolytic cell, and the other end of the circulating pump is connected with the filter.
In order to achieve the above objects and other related objects, the present invention provides an intelligent testing method for a multi-channel electrolytic cell, the testing method being adapted to the testing system for a multi-channel electrolytic cell; the test method comprises the following steps:
powering up and initializing the intelligent test system;
selecting a target to be detected of a multi-channel electrolytic cell;
acquiring parameter data of a target to be detected in an electrolysis process;
and processing the parameter data to obtain a test result of the target to be tested.
As mentioned above, the intelligent test system and method of the multi-channel electrolytic cell of the invention have the following beneficial effects:
the invention provides an intelligent test system of a multi-channel electrolytic cell, which comprises the multi-channel electrolytic cell, a detection unit and a control unit, wherein the detection unit is used for detecting parameter data of the multi-channel electrolytic cell in an electrolysis process, and then the control unit receives and processes the parameter data to obtain a test result. The invention simultaneously detects the electrolysis process of the multi-channel electrolytic cell through the intelligent test system, automatically collects, processes and analyzes the parameter data detected in the electrolysis process to obtain the test result, and can effectively improve the reliability and the test efficiency of the test result of the multi-channel electrolytic cell.
Drawings
FIG. 1 shows a schematic diagram of a prior art single channel cell.
FIG. 2 is a schematic diagram showing an application of the intelligent test system of the multi-channel electrolytic cell in the embodiment of the invention.
FIG. 3 is a schematic side view of an electrolytic cell according to an embodiment of the present invention.
FIG. 4 is a schematic side view of an electrolytic cell according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of a circuit structure of the liquid level detection submodule according to the embodiment of the invention.
Fig. 6 is a schematic circuit diagram of the effluent detection submodule according to the embodiment of the present invention.
Fig. 7 is a schematic circuit diagram of a hydrogen detection submodule according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of an RS485 communication interface circuit according to an embodiment of the present invention.
FIG. 9 is a diagram of a processor model and its peripheral connection circuitry according to an embodiment of the present invention.
Fig. 10 is a schematic circuit diagram of a water pump control submodule according to an embodiment of the present invention.
Fig. 11 is a schematic circuit diagram of a control submodule of the circulation pump according to an embodiment of the present invention.
Fig. 12 is a schematic circuit diagram of a solenoid valve control submodule according to an embodiment of the present invention.
Fig. 13 is a schematic circuit diagram of a dc power supply control sub-module according to an embodiment of the present invention.
FIG. 14 is a schematic diagram of a USB download and power supply circuit according to an embodiment of the present invention.
FIG. 15 is a flow chart showing the testing of the intelligent testing system of the multi-channel electrolytic cell in the embodiment of the invention.
Description of the drawings:
01. a water inlet; 02. a water outlet; 03. a hydrogen outlet; 04. a spare port; 05. a positive electrode tab; 06. a negative electrode tab; 1. a water pump; 2. a water tank; 3. a water outlet pipeline; 4. a circulation pump; 5. a filter; 6. a water inlet pipe; 7. a hydrogen sensor; 8. a hydrogen outlet pipe; 9. a water inlet electromagnetic valve; 10. an electrolytic cell; 11. a water outlet electromagnetic valve; 12. a water flow sensor; 13. a control unit; 14. an upper computer; 15. a TDS sensor; 16. a lower liquid level sensor; 17. an upper liquid level sensor; 18. and a gas tank.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Please refer to fig. 1-15. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The embodiment of the system is as follows:
the invention provides an intelligent test system of a multi-channel electrolytic cell, which has the main technical idea that the intelligent test system can automatically acquire parameter data in the electrolytic process of the multi-channel electrolytic cell through a set detection unit, and then automatically process and analyze the parameter data through a connected control unit to obtain a test result, so that the multi-channel electrolytic cell can be automatically tested at the same time, and the reliability and the efficiency of the test are improved.
In order to more clearly describe the technical solution of the present invention, the technical concept of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic structural diagram of a single-channel electrolytic cell in an embodiment of the invention, FIG. 2 is a schematic structural diagram of an application of an intelligent test system of a multi-channel electrolytic cell in an embodiment of the invention, and FIGS. 3 and 4 are schematic structural diagrams of the electrolytic cell.
As shown in the schematic structural diagram of the single-channel electrolytic cell shown in fig. 1, when the electrolytic cell is in operation, electrolysis can be performed only by giving direct current, so that the electrolytic cell 10 is provided with an electrical connection member with an external direct current power supply, including a positive electrode tab 05 and a negative electrode tab 06, the positive electrode tab 05 is connected with the positive electrode of the direct current power supply, and the negative electrode tab 06 is connected with the negative electrode of the direct current power supply; pure water required by electrolysis is stored in the water tank 2, and the water tank 2 is connected with a water inlet 01 of the electrolytic bath 10 through a water inlet pipeline 6; a water inlet electromagnetic valve 9 is arranged on the water inlet pipeline 6, and the water inlet electromagnetic valve 9 controls whether pure water can flow into the electrolytic bath 10; the water outlet 02 of the electrolytic cell 10 is arranged at the lower end part of the electrolytic cell 10, the water outlet 02 of the electrolytic cell 10 is connected with the water return port of the water tank 2 through the water outlet pipeline 3, and water and oxygen generated by electrolysis are discharged to the water outlet pipeline 3 through the water outlet 02 of the electrolytic cell 10; the hydrogen outlet 03 of the electrolytic cell 10 is provided at the upper end of the electrolytic cell 10, the hydrogen outlet 03 of the electrolytic cell 10 is connected to the gas tank 18 through the hydrogen outlet pipe 8, and hydrogen gas generated by electrolysis is discharged to the hydrogen outlet pipe 8 through the hydrogen outlet 03 of the electrolytic cell 10 and then enters the gas tank 18. In addition, the cell 10 also has a back-up opening 04, which is normally closed during normal use.
The intelligent test system of the multi-channel electrolytic cell provided by the invention is suitable for simultaneously and automatically testing the single-channel electrolytic cell 10 shown in figure 1, and the multi-channel electrolytic cell is provided with one electrolytic cell 10 for each channel, so that the application schematic diagram of the intelligent test system of the multi-channel electrolytic cell shown in figure 2 is provided for more clearly understanding the technical scheme of the invention. The intelligent test system of the multi-channel electrolytic cell comprises:
the water inlet 01 of each electrolytic cell 10 is filled with pure water through a water inlet pipeline 6; oxygen and pure water (i.e. pure water not participating in electrolysis) generated by the electrolysis of the electrolytic bath 10 are discharged through the water outlet pipeline 3; hydrogen generated by electrolysis of the electrolytic cell 10 is discharged through a hydrogen outlet pipeline 8;
the detection unit is used for detecting parameter data of the multi-channel electrolytic cell in the electrolytic process; the parameter data comprises product data, the product data is signal data detected by the water outlet pipeline 3 and the hydrogen outlet pipeline 8;
and the control unit 13 is in communication connection with the detection unit, and the control unit 13 receives the parameter data and obtains a test result according to the parameter data.
The intelligent test system for the multi-channel electrolytic cell comprises the multi-channel electrolytic cell, a detection unit and a control unit 13, wherein the detection unit can be used for simultaneously detecting a plurality of electrolytic cells, specifically detecting parameter data of the multi-channel electrolytic cell in the electrolytic process, and then receiving and processing the parameter data by the control unit 13 to obtain a test result. The invention simultaneously detects the electrolysis process of the multi-channel electrolytic cell through the intelligent test system, automatically collects, processes and analyzes the parameter data detected in the electrolysis process to obtain the test result, can effectively avoid the defects of high labor intensity and low reliability in artificial observation, and not only improves the intelligent degree, but also can effectively improve the reliability and the test efficiency of the test result of the multi-channel electrolytic cell because the intelligent test system automatically detects and analyzes the parameter data in the electrolysis process.
As a further limitation to the intelligent test system of the multi-channel electrolytic cell of the present invention, the detection unit comprises a hydrogen sensor 7 and a water flow sensor 12, wherein the hydrogen sensor 7 is disposed on the hydrogen outlet pipe 8 and is configured to detect a hydrogen signal generated by electrolysis, and the water flow sensor 12 is disposed on the water outlet pipe 3 and is configured to detect and obtain electrical signals corresponding to the water and oxygen in the water outlet pipe 3. Correspondingly, the parameter data detected by the detection unit are product data, including the hydrogen gas output and electric signals corresponding to the water and oxygen in the water outlet pipeline 3.
The hydrogen sensor 7 and the water flow sensor 12 in the detection unit are respectively arranged on the output pipelines corresponding to the products of the electrolytic cell 10, and the electric signal in the water outlet pipeline 3 detected by the water flow sensor 12 is used for judging the water outlet and oxygen outlet states of the electrolytic cell 10, so that whether the anode of the electrolytic cell 10 is blocked and whether the oxygen outlet is normal can be judged; the hydrogen signal detected by the hydrogen sensor 7 is used to judge whether the cathode of the electrolytic cell 10 is blocked and the hydrogen is abnormal.
In the embodiment of the present invention, the electrical signal in the outlet conduit 3 detected by the water flow sensor 12 is a high level signal, a low level signal or a pulse signal; a hydrogen signal detected by the hydrogen sensor 7 is whether hydrogen exists in the hydrogen outlet pipeline 8; as another embodiment, the hydrogen signal detected by the hydrogen sensor 7 may also be the hydrogen gas output in the hydrogen outlet pipe 8.
The detection unit detects the electrical signal or/and the hydrogen signal and then sends the electrical signal or/and the hydrogen signal to the control unit 13, and the control unit 13 processes and analyzes the electrical signal or/and the hydrogen signal to judge the hydrogen, water and oxygen output states of the electrolytic cell 10. The following describes the processing procedure of detection by the detection unit and analysis and judgment by the control unit 13 specifically:
under the conditions that the circulating pump 4 and the water inlet electromagnetic valve 9 of the corresponding channel are opened and the electrolytic tank 10 is not given direct current, if the electric signal detected by the water flow sensor 12 is a high level signal, the control unit 13 processes and analyzes the high level signal, judges that the water outlet of the water outlet pipeline 3 is normal, namely the water outlet of the anode of the electrolytic tank 10 is normal, and the control unit 13 controls to perform the next test; if the electrical signal detected by the water flow sensor 12 is a low level signal, the control unit 13 processes and analyzes the low level signal, and determines that the water outlet pipe 3 has no water outlet signal, that is, the anode of the electrolytic cell 10 is blocked, and the control unit 13 controls the test to be directly ended.
Under the conditions that the circulating pump 4 and the water inlet electromagnetic valve 9 of the corresponding channel are opened and the electrolytic cell 10 gives direct current, if the electric signal detected by the water flow sensor 12 is a pulse signal, the control unit 13 processes and analyzes the pulse signal to judge that the water outlet and the oxygen outlet of the oxygen pipeline are normal, namely the oxygen outlet of the anode of the electrolytic cell 10 is normal, and the control unit 13 controls to perform the next test; if the electric signal detected by the water flow sensor 12 is a high level signal or a low level signal, the control unit 13 processes and analyzes the electric signal, determines that the oxygen output of the electrolytic cell 10 is abnormal, that is, the anode of the electrolytic cell 10 is abnormal, and the control unit 13 controls the test to be directly ended.
Under the conditions that the circulating pump 4 and the water inlet electromagnetic valve 9 of the corresponding channel are opened and the electrolytic tank 10 gives direct current, if the hydrogen signal detected by the hydrogen sensor 7 is positive, the control unit 13 processes and analyzes the hydrogen signal and judges that the hydrogen outlet of the hydrogen pipeline 8 is normal, namely, the cathode of the electrolytic tank 10 is normal, and the control unit 13 controls to perform the next test; if the hydrogen signal detected by the hydrogen sensor 7 is no, the control unit 13 processes and analyzes the no hydrogen signal, and determines that the hydrogen pipeline 8 is abnormal, that is, the cathode of the electrolytic cell 10 is abnormal, and the control unit 13 controls the test to be directly finished. In the embodiment of the present invention, the description is given by taking the hydrogen signal as an example of whether hydrogen exists, as another embodiment, if the hydrogen signal is the hydrogen gas output amount, if the hydrogen gas output amount is less than the set threshold, it is determined that the hydrogen outlet pipe 8 is abnormal (the cathode of the electrolytic cell 10 is abnormal), and if the hydrogen gas output amount is equal to or greater than the set threshold, it is determined that the hydrogen outlet pipe 8 is normal (the cathode of the electrolytic cell 10 is normal).
Under the conditions that the circulating pump 4 and the water inlet electromagnetic valve 9 of the corresponding channel are opened and the electrolytic tank 10 gives direct current, if the hydrogen signal detected by the hydrogen sensor 7 is positive, the control unit 13 processes and analyzes the hydrogen signal and judges that the hydrogen outlet of the hydrogen pipeline 8 is normal, namely, the cathode of the electrolytic tank 10 is normal, and the control unit 13 controls to perform the next test; if the hydrogen signal detected by the hydrogen sensor 7 is no, the control unit 13 processes and analyzes the no hydrogen signal, and determines that the hydrogen pipeline 8 is abnormal, that is, the cathode of the electrolytic cell 10 is abnormal, and the control unit 13 controls the test to be directly finished.
In the embodiment of the invention, in order to meet the requirement of pure water in the test process, the water pump 1 is arranged on the top of the water tank 2; under the action of the water pump 1, pure water is added into the water tank 2, and the water tank 2 is respectively connected with the water inlet of each electrolytic cell 10 through multiple channels, so that the simultaneous test of the multiple channels of electrolytic cells can be met.
In some preferred embodiments of the present invention, a liquid level sensor is provided in the water tank 2, and the liquid level sensor detects the level of water in the water tank 2; correspondingly, the parameter data also comprises liquid level data, and the liquid level data is that the liquid level in the water tank 2 reaches the upper liquid level limit or the lower liquid level limit.
Specifically, level sensor in the water tank 2 has two, is last level sensor 17 and lower level sensor 16 respectively, goes up level sensor 17 and is used for detecting whether the liquid level reaches the upper limit position of water tank 2, detects the liquid level promptly and reaches the liquid level upper limit, and lower level sensor 16 is used for detecting whether the liquid level of water reaches the lower limit position of water tank 2, detects the liquid level promptly and reaches the liquid level upper limit. In the process of carrying out intelligent test, if a liquid level sensor of a detection unit detects that the liquid level in the water tank 2 reaches the upper limit of the liquid level, a control unit 13 processes and judges the information that the liquid level reaches the upper limit of the liquid level, and then sends a first control instruction to the water pump 1 to stop the water pump 1 from working, so that the waste of water is avoided; if the liquid level sensor of the detection unit detects that the liquid level reaches the lower limit of the liquid level, the control unit 13 processes and judges the information that the liquid level reaches the lower limit of the liquid level, then sends a second control instruction to the water pump 1, starts the water pump 1 to pump water from an external water source so as to supplement the liquid level of the water tank 2, and ensures the water source of the electrolysis process.
Because oxygen and water generated by the reaction of the electrolytic cell 10 can flow into the water tank 2 through the water outlet pipe 3 in a circulating manner, and impurities are accompanied in the process that the water in the water outlet pipe 3 flows into the water tank 2 in a circulating manner, the purity of pure water is reduced, and the requirement on water in the electrolytic process cannot be met, in some preferred embodiments of the invention, the water inlet pipe 6 is provided with the filter 5 for purifying the water in the water inlet pipe 6. The use of the filter 5 can greatly improve the cycle times and the use time of the water in the water tank 2.
However, as the time of the electrolysis process increases, after a period of time, the Total dissolved solids content of the water in the water tank 2 increases, the purity of the pure water further decreases, and the requirement for the water in the electrolysis process cannot be met by using the filter 5, so that a TDS (Total dissolved solids) sensor 15 is further arranged in the water tank 2, and the TDS sensor 15 detects the Total dissolved solids content in the water tank 2; correspondingly, the parameter data comprises fixed data, and the fixed data is the content of total dissolved solids in the water tank 2.
Specifically, set up TDS sensor 15 in the bottom of water tank 2, TDS sensor 15 is used for detecting the content of total dissolved solids in water tank 2, dissolves the solid in aqueous promptly. In-process when carrying out intelligent test, if detecting element's TDS sensor detects that the TDS value of 2 internal waters of water tank exceeds a definite value, the control unit 13 is handled and is judged the information that the TDS value exceeds a definite value, then can send the third control instruction, and control test system stops the test to send out alert and report to the police and remind, so that staff or user change the pure water.
Because the resistance is too large in the process of electrolysis in the electrolysis bath 10 and the resistance of the water inlet pipeline 6 is added, in some preferred embodiments of the invention, the water inlet pipeline 6 is also provided with the circulating pump 4, one end of the circulating pump 4 is connected with a water outlet of the water tank 2 for supplying pure water to the multi-channel electrolysis bath 10, and the other end of the circulating pump is connected with the filter 5. By using the circulating pump 4, the power of water flow on the water inlet pipeline 6 can be increased, the flow velocity of pure water entering the electrolytic cell 10 is maintained, and the demand of the electrolytic cell 10 on the pure water in the electrolytic process is ensured.
In the application of the intelligent test system of the multi-channel electrolytic cell, the water inlet electromagnetic valve 9 on the water inlet pipeline 6 and the water outlet electromagnetic valve 11 on the water outlet pipeline 3 of the electrolytic cell 10 can independently control whether the channels supply water to the electrolytic cell 10 or not, and can also be convenient to turn off the water inlet electromagnetic valve 9 and the water outlet electromagnetic valve 11 after the test of the electrolytic cell 10 is finished so as to replace the electrolytic cell 10.
In some preferred embodiments of the present invention, in order to detect the voltage of the electrolytic cell 10, a voltage sensor is disposed at the electrolytic cell 10 for detecting the voltage of the electrolytic cell 10, the voltage sensor of the detection unit detects the voltage signal of the electrolytic cell 10, and the control unit 13 performs processing judgment to obtain the test result.
The intelligent test system of the multi-channel electrolytic cell further comprises an upper computer 14, wherein the upper computer 14 is used for displaying and storing relevant data and issuing relevant control instructions to the control unit 13. For example, the upper computer 14 sends a current instruction to the control unit 13, and the control unit 13 controls the current of the given electrolytic cell 10 according to the current instruction; then, in the testing process, the control unit 13 uploads the testing results (the voltage of the electrolytic cell 10, the blockage condition of the hydrogen outlet 03 of the electrolytic cell 10, the water outlet and oxygen outlet states of the electrolytic cell 10 and the like) obtained by processing and analyzing the detected parameter data to the upper computer 14, the upper computer 14 displays the testing results, and the testing results are presented in the forms of numerical values, curves, histograms and the like.
The circuit embodiment is as follows:
the invention specially designs and develops a corresponding electronic control system aiming at various functions required by the test of the electrolytic cell by the intelligent test system. The electronic control system comprises a detection module, a communication module, a processing module and a control module.
The detection module is used for detecting parameter data of the multi-channel electrolytic cell in the electrolytic process; the detection module comprises a liquid level detection submodule, a water outlet detection submodule and a hydrogen outlet detection submodule, and is used for respectively detecting whether the liquid level in the water tank, the water outlet pipeline and the hydrogen outlet pipeline are abnormal or not.
Specifically, fig. 5 is a schematic circuit structure diagram of the liquid level detection submodule in the embodiment of the present invention, and when the liquid level of the water in the water tank drops to the lower liquid level limit or the liquid level rises to the upper liquid level limit during the water adding process, the liquid level detection submodule detects a signal of the upper liquid level limit or the lower liquid level limit in the water tank through the plug-in port P2 and then sends out the signal of the upper liquid level limit or the lower liquid level limit. Fig. 6 is a schematic circuit structure diagram of the water outlet detection submodule in the embodiment of the present invention, the water outlet detection submodule is disposed in the water outlet pipe, and the water outlet detection submodule obtains the water outlet and the oxygen outlet condition WJ3 in the water outlet pipe through the socket P5 in the electrolysis process. Fig. 7 is a schematic circuit structure diagram of a hydrogen discharge detection submodule in an embodiment of the present invention, where the hydrogen discharge detection submodule is disposed in a hydrogen discharge pipeline and is configured to detect whether hydrogen discharge in the hydrogen pipeline is abnormal, specifically, detect a hydrogen signal in the hydrogen pipeline through a socket P15 and determine whether hydrogen discharge is abnormal.
The communication module is used for receiving and transmitting the parameter data; the communication module adopts RS485 communication protocol. Fig. 8 is a schematic structural diagram of an RS485 communication interface circuit in an embodiment of the present invention, where the RS485 communication interface circuit includes a read interface RE and a write interface TX, and is configured to read information of the detection module and transmit the information to the processing module in a communication manner, where the specifically transmitted signal includes a hydrogen signal, liquid level data, and the like.
And the processing module is used for processing and analyzing the parameter data to obtain a test result and a control instruction. The processing module adopts an STM32F103ZET6 processor, and as shown in FIG. 9, the model of the processor and the peripheral connection circuit of the processor in the embodiment of the invention are shown.
The control module controls the test process according to the control instruction; the control module comprises a water pump control submodule, a circulating pump control submodule, an electromagnetic valve control submodule and a direct-current power supply control submodule.
Specifically, as shown in fig. 10, which is a schematic diagram of a circuit structure of a water pump control submodule in an embodiment of the present invention, when a processing module analyzes parameter data to generate a control instruction that water needs to be added to a water tank or water addition is stopped, an on-off state of a relay HF3FF/012-1HST is changed, and then a water pump operation state is started or stopped through a control terminal pumpsjs of the water pump, so as to achieve a purpose of controlling the water pump. Fig. 11 is a schematic circuit structure diagram of a control submodule of the circulation pump in the embodiment of the present invention, which directly sends a corresponding control instruction to the circulation pump when the circulation pump needs to be controlled to operate, and controls to change the on/off state of the relay HF3FF/012-1HST, so as to start or stop the operation state of the circulation pump through the control terminal PUMPXH of the circulation pump, thereby achieving the purpose of controlling the circulation pump. Fig. 12 is a schematic diagram of a circuit structure of a solenoid valve control submodule in an embodiment of the present invention, in an electrolysis process, a corresponding water inlet solenoid valve and a corresponding water outlet solenoid valve need to be opened, and corresponding circuit structures of the water inlet solenoid valve and the water outlet solenoid valve are as shown in fig. 12, whether a solenoid valve control submodule in an on-off state of a control relay HF3FF/012-1HST is electrified or not is controlled, a relay of a solenoid valve control submodule circuit is closed, a corresponding solenoid valve electrified water inlet pipeline and/or a corresponding solenoid valve water outlet pipeline is opened, a relay of the solenoid valve control submodule is opened, and a corresponding solenoid valve is not electrified water inlet pipeline and/or a corresponding solenoid valve water outlet pipeline is closed. Fig. 13 is a schematic circuit structure diagram of a dc power supply control submodule in an embodiment of the present invention, where a given dc power is required for electrolysis, and the dc power is output to a dc power supply module through a voltage output terminal VOUT of the dc power supply control module shown in fig. 13, and the dc power is output to an intelligent test system through controlling the dc power supply module. FIG. 14 is a schematic diagram of a USB download and power supply circuit, which can download the test program of the test system through the USB _232 interface.
The intelligent test system detects parameter data in the electrolysis process and analyzes and processes the parameter data to obtain a test result under the action of the electronic control system, thereby realizing the intelligent test of the multi-channel electrolytic cell.
The method comprises the following steps:
FIG. 15 is a flow chart showing the testing of the intelligent testing system of the multi-channel electrolytic cell in the embodiment of the invention. The following describes an exemplary test performed by the intelligent test system according to the present application with reference to specific embodiments.
Step S1, powering on the intelligent test system;
before the multichannel electrolytic cell is intelligently tested, the installed intelligent test system is powered to supply power to each circuit module of the intelligent test system.
Step S2, initializing the intelligent test system;
before testing, the intelligent test system is initialized to ensure the accuracy of the test system in testing the multi-channel electrolytic cell.
Step S3, selecting a target to be tested of the multi-channel electrolytic cell for testing;
in the step, selecting a multi-channel target to be detected comprises selecting the specification and the channel of the electrolytic cell to be detected; in the embodiment of the invention, the electrolytic cells corresponding to two channels are selected and tested simultaneously; in another embodiment, the electrolytic cells corresponding to all the passages may be selected, or only one of the electrolytic cells corresponding to one of the passages may be selected. The specification of the electrolytic cell is determined according to actual conditions.
Step S4, detecting whether the TDS value exceeds a certain value;
when the TDS value exceeds a certain value, sending alarm information; otherwise, executing step S5;
when the TDS value exceeds a certain value, the content of total dissolved solids in the water tank exceeds the standard, and alarm information is sent to remind a worker to replace water in the water tank so as to ensure the purity of pure water in the water tank.
Step S5, detecting the liquid level in the water tank, controlling the water pump to start when the liquid level reaches the lower limit of the liquid level, and adding water into the water tank until the liquid level reaches the upper limit of the liquid level; otherwise, executing step S6;
step S6, testing whether the effluent is abnormal;
opening a water inlet electromagnetic valve and a water outlet electromagnetic valve corresponding to the circulating pump and the electrolytic cell to be tested, and testing whether the water outlet is abnormal;
when the water is abnormal, sending alarm information and finishing the test; otherwise, go to step S7;
step S7, testing whether the voltage of the electrolytic bath is abnormal;
starting a DAC to control a direct current power supply, controlling the direct current power supply according to the specification of the electrolytic cell, and then starting the ADC to measure the voltage of the electrolytic cell of the channel to be measured; when the voltage of the electrolytic bath is detected to be abnormal, sending alarm information, recording the voltage of the electrolytic bath, closing the direct-current power supply, and finishing the test to give a test result; otherwise, go to step S8;
step S8, testing whether the hydrogen is abnormal;
when the hydrogen is abnormal, an alarm is given, the direct current power supply is closed, the test is finished, and a test result is given;
and when the hydrogen is normal, recording the voltage of the electrolytic bath, closing the direct current power supply, closing the circulating pump, closing the electromagnetic valve, giving a test result and finishing the test.
The test flow of the intelligent test system in the embodiment of the present invention is only an exemplary description, and the test flow may perform the sequence conversion of steps, the change of the specific judgment threshold value, and the like, as long as the test performed by using the intelligent test system by those skilled in the art is within the protection scope of the present invention.
In summary, the intelligent test system for the multi-channel electrolytic cell comprises the multi-channel electrolytic cell, a detection unit and a control unit, wherein the detection unit is used for detecting parameter data of the multi-channel electrolytic cell in the electrolytic process, and then the control unit receives and processes the parameter data to obtain a test result. The invention simultaneously detects the electrolysis process of the multi-channel electrolytic cell through the intelligent test system, and automatically collects, processes and analyzes the parameter data detected in the electrolysis process to obtain the test result. Therefore, the reliability and the testing efficiency of the testing result of the multi-channel electrolytic cell can be effectively improved. The invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
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