A method and system for dynamically adjusting the operating range of an electrolytic cell, and a storage medium

Abstract

The application discloses an electrolytic cell operation range dynamic adjustment method and system and a storage medium, and the method comprises the following steps: acquiring the current power load of an electrolytic cell; when the current power load of the electrolytic cell is in a preset power load interval, adjusting the positive and negative electrode plate spacing of the electrolytic cell to a corresponding preset spacing. The electrolytic cell operation range dynamic adjustment method provided by the application can acquire the current power load of the electrolytic cell, dynamically adjust the positive and negative electrode plate spacing of the electrolytic cell, widen the operation range of the electrolytic cell, and improve the operation efficiency of the electrolytic cell.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogen production, in particular to an electrolyzer operating range dynamic adjustment method and system and a storage medium. BACKGROUND

[0002] As a secondary energy source, hydrogen energy has multiple advantages such as diverse sources, zero terminal emissions, and wide application, and is of great significance in ensuring national energy security and promoting energy industry upgrading. With the maturation of technology and the substantial reduction of cost, hydrogen energy is entering a strategic opportunity period of rapid development. In the mature water electrolysis hydrogen production technology, the alkaline water electrolysis hydrogen production technology is relatively mature, the process is relatively simple, and the cost is relatively low. However, when the operating current density is relatively low (less than 0.5 A / cm2), the electrolyzer efficiency (60-75%) needs to be improved, and the current load operation range is only 30%-100%. Therefore, the electrolyzer cannot work below 30% of the input power, which is mainly because the hydrogen content in oxygen on the oxygen side of the electrolyzer is relatively high, which may reach 4%, and safety hazards may occur.

[0003] Therefore, it is urgent to solve the problem of expanding the load range of the alkaline water electrolysis hydrogen production electrolyzer, which is beneficial to making the operating range of the electrolyzer wider and recovering more energy, especially suitable for the case of fluctuating renewable energy power input. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the low load range of the electrolyzer in the prior art, thereby providing an electrolyzer operating range dynamic adjustment method, system and storage medium.

[0005] According to a first aspect, the present application discloses an electrolyzer operating range dynamic adjustment method, comprising:

[0006] obtaining the current power load of the electrolyzer;

[0007] When the current power load of the electrolyzer is in a preset power load interval, adjusting the positive and negative electrode plate spacing of the electrolyzer to a corresponding preset spacing.

[0008] Optionally, when the current power load of the electrolyzer is in a preset power load interval, adjusting the positive and negative electrode plate spacing of the electrolyzer to a corresponding preset spacing, comprising:

[0009] obtaining the current pressure, current temperature and time of the last adjustment of the positive and negative electrode plate spacing of the electrolyzer;

[0010] calculating the current temperature change rate of the electrolyzer;

[0011] determining whether the current pressure of the electrolyzer is in a preset pressure interval;

[0012] determining whether the current temperature of the electrolytic cell is in a preset temperature range;

[0013] determining whether the current temperature change rate of the electrolytic cell is lower than a preset temperature change rate range;

[0014] determining whether the interval between the last time of adjusting the distance between the positive and negative plates of the electrolytic cell and the current time is greater than a preset operation time interval;

[0015] when the current pressure is in the preset pressure range, the current temperature is in the preset temperature range, the current temperature change rate is in the preset temperature change rate range, the interval between the last time of adjusting the distance between the positive and negative plates of the electrolytic cell and the current time is greater than the preset operation time interval, and the current power load of the electrolytic cell is in the preset power load range, adjusting the distance between the positive and negative plates of the electrolytic cell to a corresponding preset distance.

[0016] Optionally, obtaining the current power load of the electrolytic cell comprises:

[0017] obtaining the power input;

[0018] calculating according to the power input and the rated power of the electrolytic cell to obtain the current power load of the electrolytic cell.

[0019] Optionally, the electrolytic cell operating range dynamic adjustment method further comprises:

[0020] when the current pressure is not in the preset pressure range, the current temperature is not in the preset temperature range, the current temperature change rate is not in the preset temperature change rate range, the interval between the last time of adjusting the distance between the positive and negative plates of the electrolytic cell and the current time is less than the preset operation time interval, or the current power load of the electrolytic cell is not in the preset power load range, maintaining the current distance between the positive and negative plates of the electrolytic cell.

[0021] According to a second aspect, the present application discloses an electrolytic cell operating range dynamic adjustment system, comprising:

[0022] an electrolytic cell and a control unit;

[0023] The electrolytic cell comprises at least one negative plate and at least one positive plate;

[0024] The control unit is connected with the electrolytic cell, and is used for adjusting the distance between the positive and negative plates of the electrolytic cell to a corresponding preset distance when the current power load of the electrolytic cell is in a preset power load range.

[0025] Optionally, the control unit adjusting the distance between the positive and negative plates of the electrolytic cell to a corresponding preset distance comprises: the control unit controlling any negative plate and any positive plate to work or adjusting the distance between any negative plate and any positive plate.

[0026] Optionally, the electrolytic cell operating range dynamic adjustment system further comprises:

[0027] a pressure sensor, a temperature sensor and a power sensor;

[0028] The pressure sensor is in communication connection with the electrolytic cell at one end and in communication connection with the control unit at the other end, for collecting the current pressure of the gas in the electrolytic cell;

[0029] The temperature sensor is in communication connection with the electrolytic cell at one end and in communication connection with the control unit at the other end, for collecting the current temperature in the electrolytic cell;

[0030] The power sensor is in connection with the power supply at one end and in communication connection with the control unit at the other end, for obtaining the input power of the power supply.

[0031] Optionally, the control unit comprises:

[0032] a communication module for obtaining the collection values of the pressure sensor, the temperature sensor and the power sensor;

[0033] a first calculation module for calculating the current temperature change rate of the electrolytic cell according to the temperature collected by the temperature sensor;

[0034] a second calculation module for calculating the current power load of the electrolytic cell according to the input power of the power supply and the rated power of the electrolytic cell;

[0035] a third calculation module for calculating the interval between the time of the last adjustment of the electrolytic cell anode-cathode plate spacing and the current time;

[0036] a first judgment module for judging whether the current pressure of the electrolytic cell is in a preset pressure interval;

[0037] a second judgment module for judging whether the current temperature of the electrolytic cell is in a preset temperature interval;

[0038] a third judgment module for judging whether the current temperature change rate of the electrolytic cell is in a preset temperature change rate interval;

[0039] a fourth judgment module for judging whether the interval between the time of the last adjustment of the electrolytic cell anode-cathode plate spacing and the current time is greater than a preset operation time interval;

[0040] a storage unit for storing a table of corresponding relationships between the preset pressure interval, the preset temperature interval, the preset temperature change rate interval, the preset operation time interval and the preset power load interval and the electrolytic cell anode-cathode plate spacing;

[0041] The adjusting module is configured to adjust the distance between the positive and negative plates of the electrolytic cell to a preset distance when the current pressure is in a preset pressure range, the current temperature is in a preset temperature range, the current temperature change rate is in a preset temperature change rate range, the interval between the time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell and the current time is greater than a preset operation time interval, and the current power load of the electrolytic cell is in a preset power load range.

[0042] Optionally, when the electrolytic cell comprises one positive plate and one negative plate, the control unit is configured to adjust the positions of the positive plate and the negative plate of the electrolytic cell to corresponding preset distances when the current power load of the electrolytic cell is in a preset power load range.

[0043] When the electrolytic cell comprises a plurality of positive plates and a plurality of negative plates, the control unit is configured to select corresponding positive plates and negative plates to work so that the working distance between the electrodes of the electrolytic cell is a corresponding preset distance when the current power load of the electrolytic cell is in a preset power load range.

[0044] According to a third aspect, the present application also discloses a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the electrolytic cell operating range dynamic adjustment method according to the first aspect.

[0045] The technical scheme of the present application has the following advantages:

[0046] 1. The electrolytic cell operating range dynamic adjustment method, system and storage medium provided by the present application, by acquiring the current power load of the electrolytic cell, dynamically adjusting the distance between the positive and negative plates of the electrolytic cell, widen the operating range of the electrolytic cell, and improve the operating efficiency of the electrolytic cell.

[0047] 2. The electrolytic cell operating range dynamic adjustment method, system and storage medium provided by the present application, by acquiring the current pressure and temperature parameters of the electrolytic cell, judging whether the current pressure is in a preset pressure range, whether the current temperature is in a preset temperature range, whether the current temperature change rate is in a preset temperature change rate range, and whether the interval between the time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell and the current time is greater than a preset operation time interval, while widening the operating range of the electrolytic cell and improving the operating efficiency of the electrolytic cell, the safety of operation is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0049] Figure 1 Flow chart for a specific example of a method for dynamically adjusting the operating range of an electrolytic cell according to an embodiment of the present application;

[0050] Figure 2 Flow chart for another specific example of a method for dynamically adjusting the operating range of an electrolytic cell according to an embodiment of the present application;

[0051] Figure 3 Principle diagram for a specific example of a system for dynamically adjusting the operating range of an electrolytic cell according to an embodiment of the present application;

[0052] Figure 4 Principle diagram for another specific example of a system for dynamically adjusting the operating range of an electrolytic cell according to an embodiment of the present application;

[0053] Figure 5 Structure diagram for another specific example of a system for dynamically adjusting the operating range of an electrolytic cell according to an embodiment of the present application;

[0054] Figure 6 Structure diagram for another specific example of a system for dynamically adjusting the operating range of an electrolytic cell according to an embodiment of the present application;

[0055] Figure 7 Principle diagram for a specific example of a computer readable storage medium according to an embodiment of the present application. DETAILED DESCRIPTION

[0056] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0057] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can also be the internal communication of two elements, can be wireless connection, or wired connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict between them.

[0060] The electrolytic cell operation range dynamic adjustment method disclosed by the embodiments of the present application comprises the steps of: Figure 1 As shown in the figure, comprising:

[0061] Step S1, obtaining the current power load of the electrolytic cell.

[0062] Step S2, when the current power load of the electrolytic cell is in a preset power load interval, adjusting the positive and negative electrode plate spacing of the electrolytic cell to a corresponding preset spacing.

[0063] For example, when the current power load of the electrolytic cell is 20%-100%, the positive and negative electrode plate spacing of the electrolytic cell is adjusted to L1; when the current power load of the electrolytic cell is 10%-20%, the positive and negative electrode plate spacing of the electrolytic cell is adjusted to L2; when the current power load of the electrolytic cell is 5%-10%, the positive and negative electrode plate spacing of the electrolytic cell is adjusted to L3; when the current power load of the electrolytic cell is 0%-5%, the positive and negative electrode plate spacing of the electrolytic cell is adjusted to L4. The preset power load interval and the preset spacing are both set one by one in advance, which is not limited by the present application.

[0064] The electrolytic cell operation range dynamic adjustment method provided by the present application can dynamically adjust the positive and negative electrode plate spacing of the electrolytic cell by obtaining the current power load of the electrolytic cell, thereby widening the operation range of the electrolytic cell and improving the operation efficiency of the electrolytic cell.

[0065] In an embodiment, step S1 obtains the current power load of the electrolytic cell, comprising: obtaining the power input power; calculating according to the power input power and the rated power of the electrolytic cell to obtain the current power load of the electrolytic cell.

[0066] For example, when the power input power is P1 and the rated power of the electrolytic cell is P2, the power load P can be represented by the following formula:

[0067]

[0068] As an optional embodiment of the present application, when the current power load of the electrolytic cell is in a preset power load interval, the positive and negative electrode plate spacing of the electrolytic cell is adjusted to a corresponding preset spacing. Figure 2 As shown in the figure, the method comprises the following steps:

[0069] In step S21, the current pressure, current temperature and the time of the last adjustment of the positive and negative electrode plate spacing of the electrolytic cell are obtained.

[0070] In step S22, the current temperature change rate of the electrolytic cell is calculated.

[0071] In step S23, it is judged whether the current pressure of the electrolytic cell is in a preset pressure interval.

[0072] In step S24, it is judged whether the current temperature of the electrolytic cell is in a preset temperature interval.

[0073] In step S25, it is judged whether the current temperature change rate of the electrolytic cell is lower than a preset temperature change rate interval.

[0074] In step S26, it is judged whether the interval between the time of the last adjustment of the positive and negative electrode plate spacing of the electrolytic cell and the current time is greater than a preset operation time interval.

[0075] In step S27, when the current pressure is in the preset pressure interval, the current temperature is in the preset temperature interval, the current temperature change rate is in the preset temperature change rate interval, the interval between the time of the last adjustment of the positive and negative electrode plate spacing of the electrolytic cell and the current time is greater than the preset operation time interval and the current power load of the electrolytic cell is in the preset power load interval, the positive and negative electrode plate spacing of the electrolytic cell is adjusted to a corresponding preset spacing.

[0076] In an embodiment, when the current pressure is not in the preset pressure interval, the current temperature is not in the preset temperature interval, the current temperature change rate is not in the preset temperature change rate interval, the interval between the time of the last adjustment of the positive and negative electrode plate spacing of the electrolytic cell and the current time is less than the preset operation time interval or the current power load of the electrolytic cell is not in the preset power load interval, the current positive and negative electrode plate spacing of the electrolytic cell is maintained.

[0077] The electrolytic cell operation range dynamic adjustment method provided by the present application can widen the operation range of the electrolytic cell and improve the operation efficiency of the electrolytic cell, while ensuring the safety of operation, by obtaining the current pressure and temperature parameters of the electrolytic cell, judging whether the current pressure is in a preset pressure interval, whether the current temperature is in a preset temperature interval, whether the current temperature change rate is in a preset temperature change rate interval and whether the interval between the time of the last adjustment of the positive and negative electrode plate spacing of the electrolytic cell and the current time is greater than a preset operation time interval.

[0078] The electrolytic cell operation range dynamic adjustment system disclosed by the embodiments of the present application comprises an electrolytic cell, a pressure sensor, a temperature sensor, a current sensor, a controller and a positive and negative electrode plate spacing adjusting device. The pressure sensor is arranged on the electrolytic cell to obtain the current pressure of the electrolytic cell. The temperature sensor is arranged on the electrolytic cell to obtain the current temperature of the electrolytic cell. The current sensor is arranged on the electrolytic cell to obtain the current power load of the electrolytic cell. The controller is connected to the pressure sensor, the temperature sensor and the current sensor to receive the current pressure, the current temperature and the current power load of the electrolytic cell. The positive and negative electrode plate spacing adjusting device is connected to the controller to adjust the positive and negative electrode plate spacing of the electrolytic cell.Figure 3 illustrated, comprising:

[0079] an electrolytic cell 1 and a control unit 2;

[0080] The electrolytic cell 1 comprises at least one negative electrode plate and at least one positive electrode plate;

[0081] The control unit 2 is connected with the electrolytic cell 1, and is configured to adjust the distance between the positive and negative electrode plates of the electrolytic cell 1 to a corresponding preset distance when the current power load of the electrolytic cell 1 is in a preset power load range.

[0082] Illustratively, the control unit 2 can be communicatively connected with the electrolytic cell 1 based on an OPC (OLE for Process Control) communication protocol.

[0083] In an embodiment, the control unit adjusting the distance between the positive and negative electrode plates of the electrolytic cell 1 to a corresponding preset distance comprises: the control unit controlling any negative electrode plate to work with any positive electrode plate or adjusting the distance between any negative electrode plate and any positive electrode plate.

[0084] Specifically, when the current power load of the electrolytic cell is in the range of 20%-100%, the distance between the positive and negative electrode plates of the electrolytic cell is adjusted to L1; when the current power load of the electrolytic cell is in the range of 10%-20%, the distance between the positive and negative electrode plates of the electrolytic cell is adjusted to L2; when the current power load of the electrolytic cell is in the range of 5%-10%, the distance between the positive and negative electrode plates of the electrolytic cell is adjusted to L3; and when the current power load of the electrolytic cell is in the range of 0%-5%, the distance between the positive and negative electrode plates of the electrolytic cell is adjusted to L4. The preset power load range and the preset distance are both set in advance in a one-to-one correspondence, which is not limited by the present application.

[0085] In an embodiment, the electrolytic cell operating range dynamic adjustment system further comprises:

[0086] a pressure sensor 4, a temperature sensor 5 and a power sensor 6;

[0087] One end of the pressure sensor 4 is communicatively connected with the electrolytic cell 1, and the other end is communicatively connected with the control unit 2, for collecting the current pressure of the gas in the electrolytic cell 1;

[0088] One end of the temperature sensor 5 is communicatively connected with the electrolytic cell 1, and the other end is communicatively connected with the control unit 2, for collecting the current temperature in the electrolytic cell 1;

[0089] One end of the power sensor 6 is connected with the power supply 3, and the other end is communicatively connected with the control unit 2, for obtaining the input power of the power supply 3.

[0090] Exemplarily, the pressure sensor 4, the temperature sensor 5 and the power sensor 6 can be communicatively connected with the control unit based on an OPC protocol.

[0091] As an optional embodiment of the present application, the control unit, such as Figure 4 as shown, comprises:

[0092] a communication module 201 configured to acquire the collected values of the pressure sensor, the temperature sensor and the power sensor.

[0093] a first calculation module 202 configured to calculate a current temperature change rate of the electrolytic cell according to the temperature collected by the temperature sensor.

[0094] a second calculation module 203 configured to calculate a current power load of the electrolytic cell according to the input power of the power supply and the rated power of the electrolytic cell.

[0095] a third calculation module 204 configured to calculate a time interval between a last time of adjusting the positive and negative plate spacing of the electrolytic cell and a current time.

[0096] a first judgment module 205 configured to judge whether the current pressure of the electrolytic cell is in a preset pressure interval.

[0097] a second judgment module 206 configured to judge whether the current temperature of the electrolytic cell is in a preset temperature interval.

[0098] a third judgment module 207 configured to judge whether the current temperature change rate of the electrolytic cell is in a preset temperature change rate interval.

[0099] a fourth judgment module 208 configured to judge whether the time interval between the last time of adjusting the positive and negative plate spacing of the electrolytic cell and the current time is greater than a preset operation time interval.

[0100] a storage unit 209 configured to store a table of corresponding relationships between the preset pressure interval, the preset temperature interval, the preset temperature change rate interval, the preset operation time interval and the preset power load interval and the positive and negative plate spacing of the electrolytic cell.

[0101] an adjustment module 210 configured to adjust the positive and negative plate spacing of the electrolytic cell to a preset spacing when the current pressure is in the preset pressure interval, the current temperature is in the preset temperature interval, the current temperature change rate is in the preset temperature change rate interval, the time interval between the last time of adjusting the positive and negative plate spacing of the electrolytic cell and the current time is greater than the preset operation time interval, and the current power load of the electrolytic cell is in the preset power load interval.

[0102] Exemplarily, the calculation module and the judgment module can be Matlab programs.

[0103] In an embodiment, when the electrolytic cell comprises one positive electrode plate and one negative electrode plate, as shown in FIG. 2A, the control unit is configured to adjust the positions of the positive electrode plate and the negative electrode plate to a corresponding preset interval when the current power load of the electrolytic cell is in a preset power load interval. Figure 5

[0104] When the electrolytic cell comprises a plurality of positive electrode plates and a plurality of negative electrode plates, as shown in FIG. 2B, the control unit is configured to select corresponding positive electrode plates and negative electrode plates to work so that the working electrode interval of the electrolytic cell is a corresponding preset interval when the current power load of the electrolytic cell is in a preset power load interval. Figure 6

[0105] The embodiment of the present application also provides a storage medium, as shown in FIG. 7, which stores a computer program 701, and the instructions are executed by a processor to implement the steps of the electrolytic cell operating range dynamic adjustment method in the above-mentioned embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc. The storage medium can also include a combination of the above-mentioned types of memories. Figure 7

[0106] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing related hardware. The program can be stored in a computer readable storage medium, and when executed, the program can include the processes of the above-mentioned embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc. The storage medium can also include a combination of the above-mentioned types of memories.

[0107] ​​​While the example embodiments and their advantages have been described in detail, those skilled in the art will understand that various modifications, substitutions, and alterations can be made hereto without departing from the spirit and scope of the application as defined by the appended claims. For example, one of ordinary skill in the art will readily understand that the order of steps in a process can be varied while still remaining within the scope of the application.

[0108] Moreover, the scope of the application is not intended to be limited to particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily understand, the application can be practiced with various modifications and alterations of the processes, machines, manufacture, composition of matter, means, methods and steps described in the disclosure of the application, which are intended to be within the scope and spirit of the present application. Accordingly, the appended claims are intended to embrace all such modifications and alterations.

Claims

1. A method for dynamic adjustment of the operating range of an electrolytic cell, characterized in that, The method comprises the following steps: acquiring the current power load of the electrolytic cell; adjusting the distance between the positive and negative plates of the electrolytic cell to a corresponding preset distance when the current power load of the electrolytic cell is in a preset power load interval; acquiring the current pressure, temperature and time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell of the electrolytic cell; calculating the current temperature change rate of the electrolytic cell; determining whether the current pressure of the electrolytic cell is in a preset pressure interval; determining whether the current temperature of the electrolytic cell is in a preset temperature interval; determining whether the current temperature change rate of the electrolytic cell is lower than a preset temperature change rate interval; determining whether the interval between the time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell and the current time is greater than a preset operation time interval; adjusting the distance between the positive and negative plates of the electrolytic cell to a corresponding preset distance when the current pressure is in a preset pressure interval, the current temperature is in a preset temperature interval, the current temperature change rate is in a preset temperature change rate interval, the interval between the time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell and the current time is greater than a preset operation time interval and the current power load of the electrolytic cell is in a preset power load interval. The method comprises the following steps:

2. The method of claim 1, wherein, acquiring the input power of the power supply; calculating the current power load of the electrolytic cell according to the input power of the power supply and the rated power of the electrolytic cell. The method further comprises the following steps:

3. The method of claim 1, wherein, maintaining the current distance between the positive and negative plates of the electrolytic cell when the current pressure is not in a preset pressure interval, the current temperature is not in a preset temperature interval, the current temperature change rate is not in a preset temperature change rate interval, the interval between the time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell and the current time is less than a preset operation time interval or the current power load of the electrolytic cell is not in a preset power load interval. The method comprises the following steps:

4. A system for dynamic adjustment of the operating range of an electrolytic cell, characterized in that, an electrolytic cell and a control unit; the electrolytic cell comprises at least one negative plate and at least one positive plate; the control unit is connected with the electrolytic cell and is used for adjusting the distance between the positive and negative plates of the electrolytic cell to a corresponding preset distance when the current power load of the electrolytic cell is in a preset power load interval; the control unit comprises an acquisition module used for acquiring the current pressure, temperature and time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell of the electrolytic cell; a first calculation module used for calculating the current temperature change rate of the electrolytic cell according to the temperature collected by a temperature sensor; a second calculation module used for calculating the current power load of the electrolytic cell according to the input power of the power supply and the rated power of the electrolytic cell; a third calculation module used for calculating the interval between the time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell and the current time; a first determination module used for determining whether the current pressure of the electrolytic cell is in a preset pressure interval; a second determination module used for determining whether the current temperature of the electrolytic cell is in a preset temperature interval; a third determination module used for determining whether the current temperature change rate of the electrolytic cell is in a preset temperature change rate interval; a fourth determination module used for determining whether the interval between the time of the last adjustment of the distance between the positive and negative plates of the electrolytic cell and the current time is greater than a preset operation time interval; ​ a storage unit configured to store a table of corresponding relationships between the preset pressure interval, the preset temperature interval, the preset temperature change rate interval, the preset operation time interval, and the preset power load interval and the positive and negative electrode plate spacing of the electrolytic cell; an adjusting module configured to adjust the positive and negative electrode plate spacing of the electrolytic cell to a preset spacing when the current pressure is in the preset pressure interval, the current temperature is in the preset temperature interval, the current temperature change rate is in the preset temperature change rate interval, the interval between the time of the last adjustment of the positive and negative electrode plate spacing of the electrolytic cell and the current time is greater than the preset operation time interval, and the current power load of the electrolytic cell is in the preset power load interval.

5. The system of claim 4, wherein, The control unit adjusting the positive and negative electrode plate spacing of the electrolytic cell to a corresponding preset spacing includes the control unit controlling any negative electrode plate and any positive electrode plate or adjusting the distance between any negative electrode plate and any positive electrode plate.

6. The system of claim 4, wherein, Further comprising: a pressure sensor, a temperature sensor, and a power sensor; one end of the pressure sensor is in communication connection with the electrolytic cell, and the other end is in communication connection with the control unit, for collecting the current pressure of the gas in the electrolytic cell; one end of the temperature sensor is in communication connection with the electrolytic cell, and the other end is in communication connection with the control unit, for collecting the current temperature in the electrolytic cell; one end of the power sensor is connected with the power supply, and the other end is in communication connection with the control unit, for obtaining the input power of the power supply.

7. The system of claim 4, wherein when the electrolytic cell includes one positive electrode plate and one negative electrode plate, the control unit is configured to adjust the positions of the positive electrode plate and the negative electrode plate of the electrolytic cell to a corresponding preset spacing when the current power load of the electrolytic cell is in the preset power load interval; when the electrolytic cell includes a plurality of positive electrode plates and a plurality of negative electrode plates, the control unit is configured to select corresponding positive electrode plates and negative electrode plates to work so that the working electrode spacing of the electrolytic cell is a corresponding preset spacing when the current power load of the electrolytic cell is in the preset power load interval.

8. 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 electrolytic cell operating range dynamic adjustment method of any one of claims 1-3.

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