CN113790394B

CN113790394B - Hydrogen production hydrogenation system, control method and control device

Info

Publication number: CN113790394B
Application number: CN202110975875.3A
Authority: CN
Inventors: 张勤; 张鹏; 李运生; 周辉
Original assignee: Sungrow Renewables Development Co Ltd
Current assignee: Sungrow Renewables Development Co Ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2023-06-30
Anticipated expiration: 2041-08-24
Also published as: CN113790394A

Abstract

The application discloses a hydrogen production hydrogenation system, a control method and a control device, relates to the technical field of hydrogen production, and can solve the potential safety hazard caused by insufficient cooling liquid in the existing hydrogen production hydrogenation system. The hydrogen production hydrogenation system comprises: the hydrogen compression equipment, the hydrogenation equipment, the liquid supplementing equipment and the control equipment; the hydrogen compression device comprises a first circulating cooling system, and the hydrogenation device comprises a second circulating cooling system; a first liquid level sensor is arranged in a pipeline of the first circulating cooling system, and a second liquid level sensor is arranged in a pipeline of the second circulating cooling system; the control device is configured to: acquiring a first liquid level and/or a second liquid level; and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first fluid level and/or the second fluid level.

Description

Hydrogen production hydrogenation system, control method and control device

Technical Field

The embodiment of the application relates to the technical field of hydrogen production, in particular to a hydrogen production hydrogenation system, a control method and a control device.

Background

The hydrogen energy is used as a high-efficiency, clean and sustainable carbon-free energy, and has become a core energy in the current application direction of new energy, and new energy automobiles represented by hydrogen energy automobiles have also become one of the important directions of hydrogen energy application.

Generally, the hydrogen production hydrogenation system is composed of a hydrogen compression device, a hydrogenation device and the like, and the hydrogen compression device and the hydrogenation device are cooled through a circulating cooling system when working.

At present, the operation of the circulating cooling system depends on the cooling liquid in the pipeline of the circulating cooling system, and once the cooling liquid is insufficient, the cooling effect of the circulating cooling system is affected. Therefore, the temperatures of the hydrogen compression equipment and the hydrogenation equipment become very high, the power consumption of the system is increased, and a great potential safety hazard exists.

Disclosure of Invention

The application provides a hydrogen production hydrogenation system, a control method and a control device, which can solve the problem of potential safety hazard caused by insufficient cooling liquid in the existing hydrogen production hydrogenation system.

In order to achieve the above purpose, the present application adopts the following technical scheme:

in a first aspect, the present application provides a hydrogen production hydrogenation system comprising: the hydrogen compression equipment, the hydrogenation equipment, the liquid supplementing equipment and the control equipment; the hydrogen compression device comprises a first circulating cooling system, and the hydrogenation device comprises a second circulating cooling system; a first liquid level sensor is arranged in a pipeline of the first circulating cooling system, and a second liquid level sensor is arranged in a pipeline of the second circulating cooling system; the control device is configured to: acquiring a first liquid level and/or a second liquid level; controlling the liquid supplementing equipment to supplement liquid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first liquid level and/or the second liquid level; the first liquid level is the liquid level of the liquid in the pipeline of the first circulating cooling system detected by the first liquid level sensor, and the second liquid level is the liquid level of the liquid in the pipeline of the second circulating cooling system detected by the second liquid level sensor.

In the technical scheme that this application provided, first level sensor can detect the liquid level of liquid in the pipeline of first circulative cooling system, and second level sensor can detect the liquid level of liquid in the pipeline of second circulative cooling system. Therefore, the control equipment can judge the first circulating cooling system and/or whether the liquid is required to be replenished according to the first liquid level measured by the first liquid level sensor and/or the second liquid level measured by the second liquid level sensor, and when the liquid replenishing requirement is determined, the liquid replenishing equipment is controlled to replenish liquid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system. It can be seen that, among the technical scheme that this application provided, control equipment can realize according to first liquid level and/or second liquid level automatic to the pipeline of first circulation cooling system and/or the pipeline fluid replacement of second circulation cooling system, just so, can avoid appearing the condition that the coolant liquid is not enough to can guarantee circulation cooling system's cooling effect, maintain the temperature of hydrogen compression equipment and hydrogenation equipment, reduce the system power consumption, and then avoid the potential safety hazard because the coolant liquid is not enough leads to.

Optionally, in one possible design manner, the hydrogen production hydrogenation system further includes a hydrogen production device and a hydrogen production controller, where the hydrogen production controller is used to control an operation state of the hydrogen production device;

The control device is specifically configured to: under the condition that the running state is determined to be a starting state, acquiring a first liquid level and a second liquid level; and acquiring the second liquid level under the condition that the running state is determined to be the stop state.

Alternatively, in another possible design, the control device is specifically configured to:

after the first liquid level and the second liquid level are obtained, controlling liquid supplementing equipment to supplement liquid to a pipeline of the first circulating cooling system under the condition that the first liquid level is determined to be lower than or equal to a first preset liquid level and the second liquid level is determined to be higher than a second preset liquid level; controlling the fluid replacement equipment to replace fluid in a pipeline of the second circulating cooling system under the condition that the second fluid level is determined to be lower than or equal to a second preset fluid level and the first fluid level is determined to be higher than the first preset fluid level; and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and the pipeline of the second circulating cooling system under the condition that the first fluid level is determined to be lower than or equal to the first preset fluid level and the second fluid level is determined to be lower than or equal to the second preset fluid level.

after the second liquid level is obtained, controlling the liquid replenishing device to replenish liquid to a pipeline of the second circulating cooling system under the condition that the second liquid level is determined to be lower than or equal to a second preset liquid level.

Optionally, in another possible design manner, a first temperature sensor and a first pre-cooling device are further arranged in the pipeline of the first circulation cooling system, and a second temperature sensor and a second pre-cooling device are further arranged in the pipeline of the second circulation cooling system;

the control device is further configured to: acquiring a first temperature value and/or a second temperature value; the first temperature value is the temperature of the liquid in the pipeline of the first circulating cooling system detected by the first temperature sensor, and the second temperature value is the temperature of the liquid in the pipeline of the second circulating cooling system detected by the second temperature sensor; and controlling the first precooling equipment to cool the liquid in the pipeline of the first circulating cooling system and/or controlling the second precooling equipment to cool the liquid in the pipeline of the second circulating cooling system according to the first temperature value and/or the second temperature value.

the control device is further configured to: under the condition that the running state is determined to be a starting state, a first temperature value and a second temperature value are obtained; and acquiring a second temperature value under the condition that the running state is determined to be the stop state.

In a second aspect, the present application provides a control method, where the control method may be applied to the hydrogen production hydrogenation system according to the first aspect or any one of the design manners of the first aspect. The control method may include:

acquiring a first liquid level and/or a second liquid level; the first liquid level is the liquid level of the liquid in the pipeline of the first circulating cooling system detected by the first liquid level sensor, and the second liquid level is the liquid level of the liquid in the pipeline of the second circulating cooling system detected by the second liquid level sensor; and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first fluid level and/or the second fluid level.

Optionally, in one possible design, the obtaining the first liquid level and/or the second liquid level may include:

under the condition that the running state of the hydrogen production equipment is determined to be a starting state, acquiring a first liquid level and a second liquid level; and acquiring the second liquid level under the condition that the running state is determined to be the stop state.

Optionally, in one possible design manner, after the first liquid level and the second liquid level are obtained, controlling the liquid replenishing device to replenish liquid to the pipeline of the first circulation cooling system and/or the pipeline of the second circulation cooling system according to the first liquid level and the second liquid level, including: controlling the fluid replacement equipment to replace fluid to a pipeline of the first circulating cooling system under the condition that the first fluid level is determined to be lower than or equal to a first preset fluid level and the second fluid level is determined to be higher than a second preset fluid level; controlling the fluid replacement equipment to replace fluid in a pipeline of the second circulating cooling system under the condition that the second fluid level is determined to be lower than or equal to a second preset fluid level and the first fluid level is determined to be higher than the first preset fluid level; and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and the pipeline of the second circulating cooling system under the condition that the first fluid level is determined to be lower than or equal to the first preset fluid level and the second fluid level is determined to be lower than or equal to the second preset fluid level.

Optionally, in one possible design manner, after the second liquid level is obtained, controlling the liquid replenishing device to replenish liquid to the pipeline of the second circulating cooling system according to the second liquid level, including: and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the second circulating cooling system under the condition that the second fluid level is determined to be lower than or equal to a second preset fluid level.

Optionally, in one possible design manner, the control method may further include:

acquiring a first temperature value and/or a second temperature value; the first temperature value is the temperature of the liquid in the pipeline of the first circulating cooling system detected by the first temperature sensor, and the second temperature value is the temperature of the liquid in the pipeline of the second circulating cooling system detected by the second temperature sensor;

and controlling the first precooling equipment to cool the liquid in the pipeline of the first circulating cooling system and/or controlling the second precooling equipment to cool the liquid in the pipeline of the second circulating cooling system according to the first temperature value and/or the second temperature value.

Optionally, in one possible design manner, acquiring the first temperature value and/or the second temperature value includes: under the condition that the running state is determined to be a starting state, a first temperature value and a second temperature value are obtained; and acquiring a second temperature value under the condition that the running state is determined to be the stop state.

In a third aspect, the present application provides a control apparatus that may be used to perform the control method provided in the second aspect, the control apparatus including:

the acquisition module is used for acquiring the first liquid level and/or the second liquid level; the first liquid level is the liquid level of the liquid in the pipeline of the first circulating cooling system detected by the first liquid level sensor, and the second liquid level is the liquid level of the liquid in the pipeline of the second circulating cooling system detected by the second liquid level sensor;

and the control module is used for controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first fluid level and/or the second fluid level.

In a fourth aspect, the present application provides a control device comprising a memory, a processor, a bus, and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the control device is operated, the processor executes computer-executable instructions stored in the memory to cause the control device to perform the control method as provided in the second aspect described above.

Optionally, the control device may further comprise a transceiver for performing the step of transceiving data, signaling or information, e.g. obtaining the first liquid level and/or the second liquid level, under control of a processor of the control device.

Further alternatively, the control device may be a physical machine for implementing the control method, or may be a part of a device in the physical machine, for example, may be a chip system in the physical machine. The chip system is used to support the control device to implement the functions involved in the second aspect, for example, to receive, transmit or process data and/or information involved in the control method described above. The chip system includes a chip, and may also include other discrete devices or circuit structures.

In a fifth aspect, the present application provides a computer-readable storage medium having instructions stored therein, which when executed by a computer, cause the computer to perform the control method as provided in the second aspect.

In a sixth aspect, the present application provides a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the control method as provided in the second aspect.

It should be noted that the above-mentioned computer instructions may be stored in whole or in part on a computer-readable storage medium. The computer readable storage medium may be packaged together with the processor of the control device or may be packaged separately from the processor of the control device, which is not limited in this application.

The descriptions of the second, third, fourth, fifth, and sixth aspects of the present application may refer to the detailed description of the first aspect; further, the advantageous effects described in the second aspect, the third aspect, the fourth aspect, the fifth aspect, and the sixth aspect may refer to the advantageous effect analysis of the first aspect, and are not described herein.

In this application, the names of the devices or functional modules in the hydrogen production and hydrogenation system are not limited, and in practical implementation, the devices or functional modules may be represented by other names. Insofar as the function of each device or function module is similar to the present application, it is within the scope of the claims of the present application and the equivalents thereof.

These and other aspects of the present application will be more readily apparent from the following description.

Drawings

FIG. 1 is a schematic diagram of a hydrogen production hydrogenation system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another hydrogen production hydrogenation system according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a hydrogen production hydrogenation system according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a hydrogen production hydrogenation system according to an embodiment of the present disclosure;

Fig. 5 is a schematic flow chart of a control method according to an embodiment of the present application;

FIG. 6 is a flow chart of another control method according to an embodiment of the present disclosure;

FIG. 7 is a flow chart of another control method according to an embodiment of the present disclosure;

FIG. 8 is a flow chart of another control method according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a control device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a control device according to an embodiment of the present application.

Detailed Description

The hydrogen production hydrogenation system, the control method and the control device provided by the embodiment of the application are described in detail below with reference to the accompanying drawings.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or for distinguishing between different processes of the same object and not for describing a particular sequential order of objects.

Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.

The existing hydrogen production hydrogenation system generally comprises hydrogen compression equipment, hydrogenation equipment and the like. Exemplary, referring to fig. 1, an embodiment of the present application provides a hydrogen production hydrogenation system. As shown in FIG. 1, the hydrogen production and hydrogenation system comprises an electrical device, a hydrogen production controller, a purification device, a hydrogen compression device, a sequence control panel, a hydrogenation device, a hydrogen storage device and a cyclic start-stop device. When the hydrogen compression equipment and the hydrogenation equipment work, the corresponding circulating cooling system can be controlled to start through the circulating start-stop equipment, and the equipment is cooled. The operation of the recirculating cooling system depends on the cooling fluid in the conduits of the recirculating cooling system.

In the existing hydrogen production hydrogenation system shown in fig. 1, once the cooling liquid is insufficient, the cooling effect of the circulating cooling system is affected. In this way, the temperatures of the hydrogen compression device and the hydrogenation device become very high, so that the system power consumption is increased, and a great potential safety hazard exists.

In view of the problems in the prior art, an embodiment of the present application provides a hydrogen production and hydrogenation system, and fig. 2 shows a structure of the hydrogen production and hydrogenation system provided in the embodiment of the present application. As shown in fig. 2, the hydrogen production hydrogenation system comprises a hydrogen compression device 01, a hydrogenation device 02, a liquid supplementing device 03 and a control device 04. The hydrogen compression device 01 comprises a first circulating cooling system, and the hydrogenation device 02 comprises a second circulating cooling system; the pipeline of the first circulating cooling system is internally provided with a first liquid level sensor, and the pipeline of the second circulating cooling system is internally provided with a second liquid level sensor.

The hydrogen compression device 01 may compress hydrogen input into the hydrogen compression device 01 from other devices (such as a purification device or a hydrogen production device), and heat is generated when the hydrogen is compressed. When the generated heat is excessive, there is a safety hazard in that the hydrogen temperature in the hydrogen compression apparatus 01 is excessive, so the hydrogen compression apparatus 01 is provided with a first circulation cooling system. The first circulation cooling system is filled with cooling liquid, and can cool the hydrogen compression equipment 01 when the cooling liquid is sufficient. In order to ensure that the cooling liquid in the pipeline of the first circulating cooling system is in a sufficient state, the embodiment of the application is provided with the first liquid level sensor in the pipeline of the first circulating cooling system, and the first liquid level sensor can detect the liquid level of the liquid in the pipeline of the first circulating cooling system, so that the liquid supplementing can be performed when the cooling liquid is insufficient.

The hydrogenation equipment 02 can hydrogenate hydrogen consuming articles such as hydrogen energy automobiles. Since hydrogenation from the hydrogenation apparatus 02 to the hydrogen energy vehicle is also required to be performed in a safe temperature range, a second circulation cooling system is provided in the hydrogenation apparatus 02. The second circulation cooling system is filled with cooling liquid, and can cool the hydrogenation equipment 02 when the cooling liquid is sufficient. In order to ensure that the cooling liquid in the pipeline of the second circulating cooling system is in a sufficient state, the embodiment of the application is provided with a second liquid level sensor in the pipeline of the second circulating cooling system, and the second liquid level sensor can detect the liquid level of the liquid in the pipeline of the second circulating cooling system, so that liquid supplementing can be performed when the cooling liquid is insufficient.

The control device 04 is configured to: acquiring a first liquid level and/or a second liquid level; and then controlling the fluid supplementing device 03 to supplement fluid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first fluid level and/or the second fluid level. The first liquid level is the liquid level of the liquid in the pipeline of the first circulating cooling system detected by the first liquid level sensor, and the second liquid level is the liquid level of the liquid in the pipeline of the second circulating cooling system detected by the second liquid level sensor.

Optionally, in a possible implementation manner, after the control device 04 obtains the first liquid level and/or the second liquid level, a fluid replacement instruction may be issued to the fluid replacement device 03 according to the obtained first liquid level and/or the obtained second liquid level, where the fluid replacement instruction may include a pipeline name of the fluid to be replaced. Of course, other information may be included in the fluid replacement instruction, for example, the fluid replacement amount may be included.

Alternatively, the fluid replacement apparatus 03 may include a water tower, a water pump, and a motor control subsystem. As shown in fig. 2, valves are disposed in the pipes of the first and second circulation cooling systems, the fluid infusion device 03 may be connected to the valves of the first and second circulation cooling systems through the pipes, and after receiving the fluid infusion command, the fluid infusion device 03 may control the operation of the water tower, the water pump, and the motor control subsystem to perform pipe fluid infusion to the corresponding circulation cooling system according to the instruction of the fluid infusion command.

In the drawings provided by the embodiments of the present application, the devices are connected by a dotted line to indicate that the devices may be connected in communication, and the devices are connected by a solid line to indicate that the devices may be physically connected.

Alternatively, referring to fig. 3, another structure of the hydrogen production hydrogenation system provided in an embodiment of the present application is shown. As shown in fig. 3, the hydrogen production hydrogenation system comprises a hydrogen compression device 01, a hydrogenation device 02, a liquid supplementing device 03, a control device 04, a hydrogen production device 05 and a hydrogen production controller 06, wherein the hydrogen production controller 06 is used for controlling the operation state of the hydrogen production device 05.

Hydrogen production apparatus 05 is used to produce hydrogen, and illustratively, hydrogen production apparatus 05 includes an electrolyzer in which an electrolyte can chemically react to produce hydrogen.

Hydrogen production controller 06 may control the operating conditions of hydrogen production apparatus 05. Optionally, hydrogen production controller 06 may also monitor the fault status of hydrogen production device 05, and may issue an alarm when it is determined that hydrogen production device 05 is malfunctioning.

In general, the hydrogen in the hydrogen compression device 01 is input through a pipeline by the hydrogen produced by the hydrogen production device 05, or the hydrogen produced by the hydrogen production device 05 is purified and then input. Thus, when the hydrogen production apparatus 05 is in a stopped state, the hydrogen compression apparatus 01 can be stopped, and the hydrogen compression apparatus 01 does not generate high heat. Therefore, in order to save energy, the first circulation cooling system may be stopped when the hydrogen production apparatus 05 is in a stopped state. When the first circulating cooling system stops running, the liquid in the pipeline of the first circulating cooling system is not required to be replenished. Therefore, optionally, the control device 04 obtains the first liquid level and the second liquid level in the case that the operation state of the hydrogen production device 05 is determined to be the start-up state; the control device 04 obtains the second liquid level in case it is determined that the operation state is the stopped state. In this way, in the case where it is determined that the operation state of the hydrogen production apparatus 05 is the stopped state, the control apparatus 04 may judge only the liquid level of the liquid in the pipe of the second circulation cooling system, and computational resources and storage resources inside the control apparatus 04 may be saved.

Optionally, in one possible implementation manner, if the operation state of the hydrogen production device 05 is a start-up state, the control device 04 controls the fluid replacement device 03 to replace fluid in the pipeline of the first circulating cooling system when it is determined that the first fluid level is lower than or equal to the first preset fluid level and it is determined that the second fluid level is higher than the second preset fluid level; when the second liquid level is determined to be lower than or equal to the second preset liquid level and the first liquid level is determined to be higher than the first preset liquid level, controlling the liquid supplementing equipment 03 to supplement liquid to the pipeline of the second circulating cooling system; and when the first liquid level is determined to be lower than or equal to the first preset liquid level and the second liquid level is determined to be lower than or equal to the second preset liquid level, controlling the liquid supplementing device 03 to supplement liquid to the pipeline of the first circulating cooling system and the pipeline of the second circulating cooling system.

Wherein the first preset liquid level and the second preset liquid level may be parameters determined in advance. Specifically, the first preset liquid level may be determined according to a cooling performance of the first circulation cooling system, and the second preset liquid level may be determined according to a cooling performance of the second circulation cooling system. For example, when the first liquid level is lower than or equal to Lmin1, the cooling effect of the first circulation cooling system will be affected, then Lmin1 may be determined as the first preset liquid level; when the second liquid level is lower than or equal to Lmin2, the cooling effect of the second recirculating cooling system will be affected, and Lmin2 may be determined as the second preset liquid level.

Alternatively, in another possible implementation manner, if the operation state of the hydrogen production device 05 is a stop state, after the control device 04 obtains the second liquid level, in a case that it is determined that the second liquid level is lower than or equal to the second preset liquid level, the liquid replenishing device 03 is controlled to replenish liquid to the pipeline of the second circulating cooling system.

The amount of the cooling liquid which can be stored in the pipelines of the first circulating cooling system and the second circulating cooling system is fixed, so that in the process of controlling the liquid supplementing device 03 to supplement the liquid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system by the control device 04, the liquid supplementing device 03 can be controlled to stop supplementing the liquid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first liquid level and/or the second liquid level acquired in real time.

For example, if the control device 04 controls the fluid replacement device 03 to replace fluid in the pipeline of the first circulating cooling system, the control device 04 may obtain the first liquid level in real time, and when the first liquid level is higher than the third preset liquid level, control the fluid replacement device 03 to stop replacing fluid in the pipeline of the first circulating cooling system; if the control device 04 controls the fluid infusion device 03 to infuse the fluid into the pipeline of the second circulating cooling system, the control device 04 can acquire the second liquid level in real time, and when the second liquid level is higher than the fourth preset liquid level, the control device 04 controls the fluid infusion device 03 to stop infuse the fluid into the pipeline of the second circulating cooling system.

Wherein the third preset level and the fourth preset level may be predetermined parameters. Specifically, the third preset liquid level may be determined according to a maximum capacity of the pipe of the first circulation cooling system, and the fourth preset liquid level may be determined according to a maximum capacity of the pipe of the second circulation cooling system.

Optionally, as shown in fig. 3, a first temperature sensor and a first pre-cooling device may be further disposed in a pipeline of the first circulation cooling system, and a second temperature sensor and a second pre-cooling device may be further disposed in a pipeline of the second circulation cooling system; the control device 04 is further configured to: acquiring a first temperature value and/or a second temperature value; and controlling the first precooling equipment to cool the liquid in the pipeline of the first circulating cooling system and/or controlling the second precooling equipment to cool the liquid in the pipeline of the second circulating cooling system according to the first temperature value and/or the second temperature value.

The first temperature value is the temperature of the liquid in the pipeline of the first circulating cooling system detected by the first temperature sensor, and the second temperature value is the temperature of the liquid in the pipeline of the second circulating cooling system detected by the second temperature sensor.

Because the heat generated by the hydrogen compression device 01 and the hydrogenation device 02 during operation is large, a large amount of cooling liquid needs to be added into the pipeline during operation of the first circulating cooling system and the second circulating cooling system to reduce the temperature of the hydrogen compression device 01 and the hydrogenation device 02 to be within a safe temperature range. Therefore, the capacity of the pipes of the existing first and second circulation cooling systems is large and the occupied space is also large. In addition, since the heat generated when the hydrogen compression device 01 and the hydrogenation device 02 operate is large, the first circulation cooling system and the second circulation cooling system also have a slow cooling speed for the hydrogen compression device 01 and the hydrogenation device 02. Therefore, in the technical scheme provided by the embodiment of the application, the precooling equipment can be used for cooling the cooling liquid in the pipelines of the first circulating cooling system and the second circulating cooling system, so that the consumption of the cooling liquid can be reduced, the occupied space of the pipelines of the first circulating cooling system and the second circulating cooling system is saved, and the cooling speed of the hydrogen compression equipment 01 and the hydrogenation equipment 02 is improved.

Optionally, in a possible implementation manner, after the control device 04 obtains the first temperature value and/or the second temperature value, a cooling instruction may be issued to the first precooling device and/or the second precooling device according to the obtained first temperature value and/or the obtained second temperature value, where the cooling instruction may include a name of a pipeline to be cooled.

When hydrogen plant 05 is in a stopped state, the first circulation cooling system in hydrogen compression plant 01 may be stopped. In order to save energy consumption, when the first circulating cooling system stops running, the cooling liquid in the pipeline of the first circulating cooling system can not be cooled. Therefore, optionally, the control device 04 obtains the first temperature value and the second temperature value in the case that it is determined that the operation state of the hydrogen production device 05 is the start-up state; the control device 04 acquires the second temperature value in the case where it is determined that the operation state is the stopped state. In this way, when the control device 04 determines that the operation state of the hydrogen production device 05 is the stop state, only the temperature value of the liquid in the pipeline of the second circulation cooling system can be determined, and the calculation resources and the storage resources inside the control device 04 can be saved.

Optionally, in one possible implementation manner, if the operation state of the hydrogen production device 05 is a start-up state, the control device 04 controls the pre-cooling device to cool the liquid in the pipeline of the second circulation cooling system when it is determined that the first temperature value is lower than or equal to the first preset temperature value and it is determined that the second temperature value is higher than the second preset temperature value; controlling the precooling equipment to cool the liquid in the pipeline of the first circulating cooling system under the condition that the second temperature value is lower than or equal to the second preset temperature value and the first temperature value is higher than the first preset temperature value; and controlling the precooling equipment to cool the liquid in the pipelines of the first circulating cooling system and the second circulating cooling system under the condition that the first temperature value is higher than the first preset temperature value and the second temperature value is higher than the second preset temperature value.

Wherein the first preset temperature value and the second preset temperature value may be predetermined temperature values. For example, when the first temperature value is higher than Tmax1, the temperature of the hydrogen compression apparatus 01 will exceed the safe temperature range, and there is a safety hazard, tmax1 may be determined as the first preset temperature value; when the second temperature value is higher than Tmax2, the temperature of the hydrogenation apparatus 02 will exceed the safe temperature range, and there is a safety hazard, and Tmax2 may be determined as the second preset temperature value.

Optionally, in another possible implementation manner, if the operation state of the hydrogen production device 05 is a stop state, after the control device 04 obtains the second temperature value, in a case that it is determined that the second temperature value is higher than the second preset temperature value, the precooling device is controlled to cool the liquid in the pipeline of the second circulation cooling system.

When the liquid in the pipelines of the first circulating cooling system and the second circulating cooling system is reduced to a certain temperature value, the cooling effect of the first circulating cooling system and the second circulating cooling system is optimal. Therefore, optionally, in the process that the control device 04 controls the precooling device to cool the liquid in the pipeline of the first circulation cooling system and/or the pipeline of the second circulation cooling system, the precooling device may be controlled to stop cooling according to the first temperature value and/or the second temperature value obtained in real time.

For example, if the control device 04 controls the precooling device to cool the liquid in the pipeline of the first circulating cooling system, the control device 04 may obtain the first temperature value in real time, and when the first temperature value is lower than the third preset temperature value, control the precooling device to stop cooling the liquid in the pipeline of the first circulating cooling system; if the control device 04 controls the precooling device to cool the liquid in the pipeline of the second circulating cooling system, the control device 04 can acquire the second temperature value in real time, and when the second temperature value is lower than a fourth preset temperature value, the control device controls the precooling device to stop cooling the liquid in the pipeline of the second circulating cooling system.

Wherein the third preset temperature value and the fourth preset temperature value may be predetermined temperature values.

In practical applications, the hydrogen production hydrogenation system may also include other devices. Exemplary, referring to fig. 4, another structure of a hydrogen production hydrogenation system according to an embodiment of the present application is provided. As shown in fig. 4, the hydrogen production hydrogenation system comprises a hydrogen compression device 01, a hydrogenation device 02, a liquid supplementing device 03, a control device 04, a hydrogen production device 05, a hydrogen production controller 06, a hydrogen storage device 07, an electric device 08, a purification device 09, a sequential control disc 10 and a circulating start-stop device.

The purification device 09 may purify the hydrogen produced by the hydrogen production device 05, and the hydrogen is compressed by the hydrogen compression device 01 after the purification. The sequence control panel 10 can control the hydrogen compressed by the hydrogen compression device 01 to be directly conveyed to the hydrogenation device 02, can control the output of the hydrogen compressed by the hydrogen compression device 01 to be conveyed to the hydrogen storage device 07, and can control the hydrogen stored in the hydrogen storage device 07 to be conveyed to the hydrogenation device 02. However, when the pressure value in the hydrogen storage device 07 is smaller than the pressure value in the hydrogenation device 02, it is difficult to convey the hydrogen in the hydrogen storage device 07 to the hydrogenation device 02, and the hydrogen in the hydrogen storage device 07 may not meet the demand of the hydrogenation device 02. Therefore, when the pressure value in the hydrogen storage device 07 is smaller than the pressure value of the hydrogenation device 02, the sequence control panel 10 can control the hydrogen storage device 07 and the hydrogen compression device 01 to simultaneously hydrogenate the hydrogenation device 02; when the pressure value in the hydrogen storage device 07 is greater than or equal to the hydrogenation device 02, the sequence control panel 10 may control the hydrogen storage device 07 to hydrogenate to the hydrogenation device 02.

It can be seen that the sequence control panel 10 needs to determine the magnitude of the pressure value in the hydrogen storage device 07 and the pressure value in the hydrogenation device 02 when determining the hydrogenation mode. Therefore, a first pressure sensor may be included in the hydrogen storage device 07 for detecting a pressure value of the hydrogen storage device 07, and a second pressure sensor may be included in the hydrogenation device 02 for detecting a pressure value of the hydrogenation device 02.

In view of the above, in the technical solution provided in the embodiments of the present application, the first liquid level sensor may detect a liquid level of a liquid in a pipeline of the first circulating cooling system, and the second liquid level sensor may detect a liquid level of a liquid in a pipeline of the second circulating cooling system. Therefore, the control equipment can judge the first circulating cooling system and/or whether the liquid is required to be replenished according to the first liquid level measured by the first liquid level sensor and/or the second liquid level measured by the second liquid level sensor, and when the liquid replenishing requirement is determined, the liquid replenishing equipment is controlled to replenish liquid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system. It can be seen that, in the technical scheme provided by the embodiment of the application, the control device can automatically supplement liquid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first liquid level and/or the second liquid level, so that the condition of insufficient cooling liquid can be avoided, the cooling effect of the circulating cooling system can be ensured, the temperatures of the hydrogen compression device and the hydrogenation device are maintained, the system power consumption is reduced, and potential safety hazards caused by insufficient cooling liquid are avoided.

Referring to fig. 5, the embodiment of the present application further provides a control method, where the method may be applied to the hydrogen production and hydrogenation system shown in fig. 2, fig. 3, or fig. 4, and the execution subject of the control method may be the control device 04 in the hydrogen production and hydrogenation system shown in fig. 2, fig. 3, or fig. 4, and the method includes S501-S502:

S501, acquiring a first liquid level and/or a second liquid level.

S502, controlling the fluid replacement equipment to replace fluid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first fluid level and/or the second fluid level.

Optionally, the step S501 may include: acquiring the operation state of the hydrogen production equipment, and acquiring a first liquid level and a second liquid level under the condition that the operation state of the hydrogen production equipment is determined to be a starting state; and acquiring the second liquid level under the condition that the running state is determined to be the stop state.

Optionally, in the case where the operation state of the hydrogen production apparatus is determined to be the start-up state, step S502 may include: controlling the fluid replacement equipment to replace fluid to a pipeline of the first circulating cooling system under the condition that the first fluid level is determined to be lower than or equal to a first preset fluid level and the second fluid level is determined to be higher than a second preset fluid level; controlling the fluid replacement equipment to replace fluid in a pipeline of the second circulating cooling system under the condition that the second fluid level is determined to be lower than or equal to a second preset fluid level and the first fluid level is determined to be higher than the first preset fluid level; and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and the pipeline of the second circulating cooling system under the condition that the first fluid level is determined to be lower than or equal to the first preset fluid level and the second fluid level is determined to be lower than or equal to the second preset fluid level.

Alternatively, in the case where it is determined that the operation state of the hydrogen production apparatus is the stopped state, the above step S502 may include: and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the second circulating cooling system under the condition that the second fluid level is determined to be lower than or equal to a second preset fluid level.

Optionally, as shown in fig. 6, before step S501 in fig. 5, the control method provided in the embodiment of the present application may further include S5001-S5002:

s5001, acquiring a first temperature value and/or a second temperature value.

S5002, controlling the first precooling equipment to cool the liquid in the pipeline of the first circulating cooling system and/or controlling the second precooling equipment to cool the liquid in the pipeline of the second circulating cooling system according to the first temperature value and/or the second temperature value.

Optionally, the step S5001 may include: acquiring an operation state of hydrogen production equipment, and acquiring a first temperature value and a second temperature value under the condition that the operation state is determined to be a starting state; and acquiring a second temperature value under the condition that the running state is determined to be the stop state.

In view of the above description, as shown in fig. 7, the embodiment of the present application further provides a control method, which is applied to a control device in a hydrogen production and hydrogenation system, including S701-S7014:

S701, acquiring the operation state of the hydrogen production equipment from the hydrogen production controller.

S702, judging whether the hydrogen production equipment fails.

In the case where it is determined that the hydrogen production apparatus has failed, step S7014 is performed; in the case where it is determined that the hydrogen production apparatus has not failed, step S703 is performed.

S703, judging whether the hydrogen production equipment is in a starting state.

In the case where it is determined that the hydrogen production apparatus is in the start-up state, step S704 is performed; in the case where it is determined that the hydrogen production apparatus is in the stopped state, step S709 is performed.

S704, judging whether the pressure value of the hydrogen storage device is smaller than the pressure value of the hydrogenation device.

In the case where it is determined that the pressure value of the hydrogen storage device is smaller than the pressure value of the hydrogenation device, step S705 is performed; in the case where it is determined that the pressure value of the hydrogen storage device is greater than or equal to the pressure value of the hydrogenation device, step S7013 is performed.

S705, determining that hydrogen is hydrogenated from a hydrogen production pipeline of the hydrogen production device to the hydrogenation device through the hydrogen compression device, and the hydrogen is hydrogenated from the hydrogen storage device to the hydrogenation device.

S706, acquiring a first liquid level and a second liquid level.

S707, judging whether the first liquid level is greater than a first preset liquid level and whether the second liquid level is greater than a second preset liquid level.

In case it is determined that the first liquid level is less than or equal to the first preset liquid level, or the second liquid level is less than or equal to the second preset liquid level, step S708 is performed; if it is determined that the first liquid level is greater than the first preset liquid level and the second liquid level is greater than the second preset liquid level, the step S706 is returned to be executed again.

And S708, controlling the liquid supplementing device to supplement liquid to the pipeline of the first circulating cooling system until the liquid level of the pipeline of the first circulating cooling system reaches a third preset liquid level, or supplementing liquid to the pipeline of the second circulating cooling system until the liquid level of the pipeline of the second circulating cooling system reaches a fourth preset liquid level.

After step S708, the process returns to re-execution step S706.

S709, determining that the hydrogen is added from the hydrogen storage device to the hydrogenation device.

S7010, a second liquid level is acquired.

S7011, determining whether the second liquid level is greater than a second preset liquid level.

In the case that it is determined that the second liquid level is less than or equal to the second preset liquid level, step S7012 is performed; in the case where it is determined that the second liquid level is greater than the second preset liquid level, the process returns to re-execution of step S7010.

S7012, controlling the liquid supplementing equipment to supplement liquid to the pipeline of the second circulating cooling system until the liquid level of the pipeline of the second circulating cooling system reaches a fourth preset liquid level.

After step S7012, the process returns to re-execution of step S7010.

S7013, determining to hydrogenate from the hydrogen storage device to the hydrogenation device.

After step S7013, step S706 is performed.

S7014, giving out early warning of the fault of the hydrogen production equipment.

As shown in fig. 8, the embodiment of the present application further provides a control method, which is applied to a control device in a hydrogen production and hydrogenation system, including S801-S8016:

S801, obtaining the operation state of the hydrogen production equipment from the hydrogen production controller.

S802, judging whether the hydrogen production equipment fails.

Executing step S8016 under the condition that the hydrogen production equipment is determined to be in fault; in the case where it is determined that the hydrogen production apparatus has not failed, step S803 is performed.

S803, judging whether the hydrogen production equipment is in a starting state.

In the case where it is determined that the hydrogen production apparatus is in the start-up state, step S804 is performed; in the case where it is determined that the hydrogen production apparatus is in the stopped state, step S8011 is performed.

S804, judging whether the pressure value of the hydrogen storage device is smaller than the pressure value of the hydrogenation device.

In the case where it is determined that the pressure value of the hydrogen storage device is smaller than the pressure value of the hydrogenation device, step S805 is performed; in the case where it is determined that the pressure value of the hydrogen storage device is greater than or equal to the pressure value of the hydrogenation device, step S8015 is performed.

S805, determining that hydrogen is hydrogenated from the hydrogen production pipeline of the hydrogen production device to the hydrogenation device through the hydrogen compression device, and the hydrogen is hydrogenated from the hydrogen storage device to the hydrogenation device.

S806, acquiring a first temperature value and a second temperature value.

S807, judging whether the first temperature value is smaller than a first preset temperature value.

In the case where it is determined that the first temperature value is smaller than the first preset temperature value, step S809 is performed; in the case where it is determined that the first temperature value is greater than or equal to the first preset temperature value, step S808 is performed.

As can be seen from the hydrogen production hydrogenation system shown in fig. 4, when hydrogen is hydrogenated from the hydrogen production pipeline of the hydrogen production device to the hydrogenation device, hydrogen needs to pass through the hydrogen compression device before passing through the hydrogenation device, so that the liquid in the pipeline of the first circulation cooling system in the hydrogen compression device can be cooled first, and then the liquid in the pipeline of the second circulation cooling system in the hydrogenation device can be cooled. In this way, the cooling rate can be further increased.

S808, controlling the precooling equipment to cool the liquid in the pipeline of the first circulating cooling system until the temperature is reduced to a third preset temperature value.

S809, judging whether the second temperature value is smaller than a second preset temperature value.

Returning to the re-executing step S806 if it is determined that the second temperature value is less than the second preset temperature value; in case it is determined that the second temperature value is greater than or equal to the second preset temperature value, step S8010 is performed.

And S8010, controlling the precooling equipment to cool the liquid in the pipeline of the second circulating cooling system until the temperature is reduced to a fourth preset temperature value.

After step S8010, the re-execution step S806 is returned.

And S8011, determining hydrogenation from the hydrogen storage device to the hydrogenation device.

And S8012, acquiring a second temperature value.

S8013, judging whether the second temperature value is smaller than a second preset temperature value.

Returning to the re-executing step S8012 if the second temperature value is determined to be smaller than the second preset temperature value; in case it is determined that the second temperature value is greater than or equal to the second preset temperature value, step S8014 is performed.

And S8014, controlling the precooling equipment to cool the liquid in the pipeline of the second circulating cooling system until the temperature is reduced to a fourth preset temperature value.

After step S8014, the re-execution step S8012 is returned.

And S8015, determining hydrogenation from the hydrogen storage device to the hydrogenation device.

After step S8015, step S806 is performed.

S8016, giving out early warning of the fault of the hydrogen production equipment.

As shown in fig. 9, the embodiment of the present application further provides a control device, which may have the same function as the control device in the hydrogen production and hydrogenation system related to the foregoing embodiment, and is used to execute the control method provided in the embodiment of the present application. The control device includes: an acquisition module 31 and a control module 32.

Wherein the obtaining module 31 executes S501 in the above method embodiment, and the control module 32 executes S502 in the above method embodiment.

Specifically, the obtaining module 31 is configured to obtain the first liquid level and/or the second liquid level; the first liquid level is the liquid level of the liquid in the pipeline of the first circulating cooling system detected by the first liquid level sensor, and the second liquid level is the liquid level of the liquid in the pipeline of the second circulating cooling system detected by the second liquid level sensor; the control module 32 is configured to control the fluid replacement device to replace fluid in the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first fluid level and/or the second fluid level.

Optionally, in a possible implementation manner, the obtaining module 31 is further configured to obtain the first temperature value and/or the second temperature value; the first temperature value is the temperature of the liquid in the pipeline of the first circulating cooling system detected by the first temperature sensor, and the second temperature value is the temperature of the liquid in the pipeline of the second circulating cooling system detected by the second temperature sensor; the control module 32 is further configured to control the first pre-cooling device to perform temperature reduction on the liquid in the pipeline of the first circulating cooling system and/or control the second pre-cooling device to perform temperature reduction on the liquid in the pipeline of the second circulating cooling system according to the first temperature value and/or the second temperature value acquired by the acquisition module.

Optionally, the control device may further comprise a storage module for storing program codes of the control device, etc.

As shown in fig. 10, the embodiment of the present application further provides a control device including a memory 41, a processor 42 (42-1 and 42-2), a bus 43, and a communication interface 44; the memory 41 is used for storing computer-executable instructions, and the processor 42 is connected with the memory 41 through the bus 43; when the control device is operated, the processor 42 executes computer-executable instructions stored in the memory 41 to cause the control device to perform the control method as provided in the above-described embodiment.

In a particular implementation, the processor 42 may include, as one embodiment, one or more central processing units (central processing unit, CPU), such as CPU0 and CPU1 shown in FIG. 10. And as one example the control means may comprise a plurality of processors 42, such as processor 42-1 and processor 42-2 shown in fig. 10. Each of these processors 42 may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). The processor 42 herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The memory 41 may be, but is not limited to, a read-only memory 41 (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 41 may be stand alone and be coupled to the processor 42 via a bus 43. Memory 41 may also be integrated with processor 42.

In a specific implementation, the memory 41 is used for storing data in the application and computer-executable instructions corresponding to executing a software program of the application. The processor 42 may control various functions of the apparatus by running or executing software programs stored in the memory 41 and invoking data stored in the memory 41.

The communication interface 44 uses any transceiver-like device for communicating with other devices or communication networks, such as a control system, a radio access network (radio access network, RAN), a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 44 may include a receiving unit to implement a receiving function and a transmitting unit to implement a transmitting function.

Bus 43 may be an industry standard architecture (industry standard architecture, ISA) bus, an external device interconnect (peripheral component interconnect, PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus 43 may be classified into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.

As an example, in connection with fig. 9, the acquisition module in the control device performs the same function as the receiving unit in fig. 10, the control module in the control device performs the same function as the processor in fig. 10, and the memory module in the control device performs the same function as the memory in fig. 10.

The explanation of the related content in this embodiment may refer to the above method embodiment, and will not be repeated here.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

The present embodiment also provides a computer-readable storage medium having instructions stored therein, which when executed by a computer, cause the computer to perform the control method provided by the above embodiment.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a RAM, a ROM, an erasable programmable read-only memory (erasable programmable read only memory, EPROM), a register, a hard disk, an optical fiber, a CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (application specific integrated circuit, ASIC). In the context of the present application, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The hydrogen production hydrogenation system is characterized by comprising a hydrogen compression device, a hydrogenation device, a liquid supplementing device and a control device; the hydrogen compression device comprises a first circulating cooling system, and the hydrogenation device comprises a second circulating cooling system; a first liquid level sensor is arranged in a pipeline of the first circulating cooling system, and a second liquid level sensor is arranged in a pipeline of the second circulating cooling system;

the control device is configured to:

acquiring a first liquid level and/or a second liquid level; the first liquid level is the liquid level of the liquid in the pipeline of the first circulating cooling system detected by the first liquid level sensor, and the second liquid level is the liquid level of the liquid in the pipeline of the second circulating cooling system detected by the second liquid level sensor;

controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first fluid level and/or the second fluid level;

The hydrogen production hydrogenation system also comprises hydrogen production equipment and a hydrogen production controller, wherein the hydrogen production controller is used for controlling the running state of the hydrogen production equipment;

the control device is specifically configured to:

under the condition that the running state is determined to be a starting state, acquiring the first liquid level and the second liquid level;

and acquiring the second liquid level under the condition that the running state is determined to be a stop state.

2. The hydrogen production hydrogenation system of claim 1, wherein the control device is specifically configured to:

after the first liquid level and the second liquid level are obtained, controlling the liquid replenishing device to replenish liquid to a pipeline of the first circulating cooling system under the condition that the first liquid level is determined to be lower than or equal to a first preset liquid level and the second liquid level is determined to be higher than a second preset liquid level;

controlling the fluid replacement equipment to replace fluid in a pipeline of the second circulating cooling system under the condition that the second fluid level is lower than or equal to the second preset fluid level and the first fluid level is higher than the first preset fluid level;

and controlling the fluid supplementing equipment to supplement fluid to the pipeline of the first circulating cooling system and the pipeline of the second circulating cooling system under the condition that the first fluid level is determined to be lower than or equal to the first preset fluid level and the second fluid level is determined to be lower than or equal to the second preset fluid level.

3. The hydrogen production hydrogenation system of claim 1, wherein the control device is specifically configured to:

and after the second liquid level is obtained, controlling the liquid replenishing device to replenish liquid to the pipeline of the second circulating cooling system under the condition that the second liquid level is determined to be lower than or equal to a second preset liquid level.

4. The hydrogen production hydrogenation system according to any one of claims 1-3, wherein a first temperature sensor and a first pre-cooling device are further arranged in the pipeline of the first circulating cooling system, and a second temperature sensor and a second pre-cooling device are further arranged in the pipeline of the second circulating cooling system;

the control device is further configured to:

5. The hydrogen production hydrogenation system of claim 4, further comprising a hydrogen production plant and a hydrogen production controller for controlling an operating state of the hydrogen production plant;

the control device is further configured to:

acquiring the first temperature value and the second temperature value under the condition that the running state is determined to be a starting state;

and acquiring the second temperature value under the condition that the running state is determined to be a stop state.

6. A control method applied to a hydrogen production hydrogenation system, comprising:

controlling liquid supplementing equipment to supplement liquid to a pipeline of the first circulating cooling system and/or a pipeline of the second circulating cooling system according to the first liquid level and/or the second liquid level;

the obtaining the first liquid level and/or the second liquid level comprises:

under the condition that the running state of the hydrogen production equipment is determined to be a starting state, acquiring the first liquid level and the second liquid level;

7. The control method according to claim 6, wherein after the first liquid level and the second liquid level are obtained, controlling a liquid replenishing device to replenish liquid to a pipe of the first circulation cooling system and/or a pipe of the second circulation cooling system according to the first liquid level and the second liquid level, comprises:

controlling the fluid replacement equipment to replace fluid in a pipeline of the first circulating cooling system under the condition that the first fluid level is determined to be lower than or equal to a first preset fluid level and the second fluid level is determined to be higher than a second preset fluid level;

8. The control method according to claim 6, wherein after the second liquid level is obtained, controlling the liquid replenishment device to replenish the pipe of the second circulation cooling system according to the second liquid level includes:

and controlling the fluid replacement equipment to replace fluid in the pipeline of the second circulating cooling system under the condition that the second fluid level is lower than or equal to a second preset fluid level.

9. The control method according to any one of claims 6 to 8, characterized in that the method further comprises:

10. The control method according to claim 9, wherein the acquiring the first temperature value and/or the second temperature value comprises:

Under the condition that the running state of the hydrogen production equipment is determined to be a starting state, acquiring the first temperature value and the second temperature value;

11. A control apparatus, characterized by comprising:

the control module is used for controlling the liquid supplementing equipment to supplement liquid to the pipeline of the first circulating cooling system and/or the pipeline of the second circulating cooling system according to the first liquid level and/or the second liquid level acquired by the acquisition module;

the acquisition module is specifically configured to acquire the first liquid level and the second liquid level when determining that the operation state of the hydrogen production equipment is a start state;