Hydrogenation control system, control method thereof and hydrogenation machine

Abstract

The invention discloses a hydrogenation control system, a control method thereof and a hydrogenation machine, and the hydrogenation control system comprises a hydrogenation pipeline, a hydrogen cooling device, a flow velocity detection module, a flow velocity adjusting valve, a temperature detection module, a pressure detection module and a controller. The controller controls the flow rate adjusting valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device. While safe hydrogenation is ensured, the temperature of the cooling medium in the hydrogen cooling device is dynamically adjusted according to the hydrogen filling flow rate, so that the effects of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen filling, and in particular to a hydrogen filling control system and a control method thereof, and a hydrogen filling machine. Background Art

[0002] As an infrastructure for providing hydrogen to hydrogen storage bottles of hydrogen fuel cell vehicles waiting for hydrogen refueling equipment, the number of hydrogen refueling stations is growing. Hydrogen refueling stations use hydrogen refueling machines to refuel hydrogen storage bottles of hydrogen refueling equipment. When refueling hydrogen storage bottles of hydrogen refueling equipment, if the hydrogen refueling flow rate is too high, the temperature rise of the hydrogen storage bottle of the hydrogen refueling equipment will be too large, damaging the hydrogen storage bottle of the hydrogen refueling equipment, and even causing safety hazards; if the hydrogen refueling flow rate is too low, the hydrogen refueling efficiency will be low.

[0003] Therefore, the hydrogenation control system of the existing hydrogenation machine is usually provided with a flow rate regulating valve, which controls the hydrogen filling flow rate through the flow rate regulating valve, so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated is within a preset flow rate range, thereby ensuring that the temperature rise of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated is within a normal range.

[0004] In addition, when the hydrogen filling machine is filling the hydrogen storage bottle of the equipment to be hydrogenated, since the hydrogen pressure of the gas source hydrogen storage bottle is higher than the hydrogen pressure of the hydrogen storage bottle of the equipment to be hydrogenated, the hydrogenation process is a decompression process, and hydrogen will release heat during the decompression process. The temperature of the hydrogen storage bottle of the equipment to be hydrogenated will increase during the filling process. The hydrogen storage bottle of the equipment to be hydrogenated has a maximum operating temperature requirement. For example, the current maximum operating temperature of the hydrogen storage bottle of the equipment to be hydrogenated is 85°C. Therefore, for the safety of the hydrogen storage bottle of the equipment to be hydrogenated, the temperature of the hydrogen storage bottle of the equipment to be hydrogenated must be controlled not to exceed the maximum operating temperature during the hydrogen filling process. Therefore, the hydrogen must be cooled by a hydrogen cooling device during the filling process to reduce the initial temperature of the hydrogen to ensure that the initial temperature of the hydrogen + temperature rise < the maximum operating temperature of the hydrogen storage bottle of the equipment to be hydrogenated. The lower the initial temperature of the hydrogen, the less likely it is to overheat.

[0005] In the hydrogenation process of the existing hydrogenation control system of the hydrogenation machine, the hydrogen cooling device usually works at a fixed frequency, that is, a fixed power is used to refrigerate and cool the hydrogen coming out of the gas source hydrogen storage bottle. It is impossible to dynamically adjust the power of the hydrogen cooling device according to the hydrogen filling speed to adjust the temperature of the cooling medium. Therefore, in order to make the initial temperature of the hydrogen low enough, the power of the hydrogen cooling device is usually set very low, resulting in high energy consumption of the cooling unit.

[0006] In summary, how to dynamically adjust the temperature of the cooling medium in the hydrogen cooling device according to the hydrogen filling flow rate while ensuring safe hydrogenation to achieve energy conservation and emission reduction is an urgent problem to be solved in this field. Summary of the invention

[0007] In order to solve the above technical problems, the present application provides a hydrogenation control system, a control method thereof and a hydrogenation machine, which can dynamically adjust the temperature of the cooling medium in the hydrogen cooling device according to the hydrogen filling flow rate while ensuring safe hydrogenation, so as to achieve the effect of energy saving and emission reduction.

[0008] The first object of the present application is to provide a hydrogenation control system that can dynamically adjust the temperature of the cooling medium in the hydrogen cooling device according to the hydrogen filling flow rate while ensuring safe hydrogenation.

[0009] The above-mentioned application objective 1 of the present application is achieved through the following technical solutions:

[0010] A hydrogenation control system includes a hydrogenation pipeline, a hydrogen cooling device, a flow rate detection module, a flow rate regulating valve, a temperature detection module, a pressure detection module and a controller.

[0011] One end of the hydrogenation pipeline is an air inlet interface for connecting to a gas source hydrogen storage bottle, and the other end of the hydrogenation pipeline is an air outlet interface for connecting to a hydrogen storage bottle of a hydrogenation equipment to be hydrogenated. The hydrogen cooling device is arranged on the end of the hydrogenation pipeline close to the air inlet interface. The flow rate regulating valve and the flow rate detection module are arranged on the hydrogenation pipeline and located at the hydrogen outlet end of the hydrogen cooling device. The temperature detection module and the pressure detection module are both arranged on the hydrogenation pipeline and located at the end of the hydrogenation pipeline close to the air outlet interface.

[0012] The signal output ends of the flow rate detection module, the temperature detection module and the pressure detection module are respectively connected to the input end of the controller, and the signal input ends of the hydrogen cooling device and the flow rate regulating valve are respectively connected to the signal output end of the controller, wherein:

[0013] The temperature detection module is used to detect the temperature of hydrogen in the hydrogenation pipeline;

[0014] The pressure detection module is used to detect the hydrogen pressure in the hydrogenation pipeline;

[0015] The flow rate detection module is used to detect the hydrogen filling flow rate in the hydrogen filling pipeline;

[0016] The hydrogen cooling device is used to cool the hydrogen delivered from the gas source hydrogen storage bottle to the hydrogenation pipeline to reduce the initial temperature of the hydrogen;

[0017] The flow rate regulating valve is used to adjust the hydrogen flow rate in the hydrogenation pipeline to adjust the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment;

[0018] The controller is used to control the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device.

[0019] Preferably, the hydrogen cooling device comprises a hydrogen heat exchanger and a cooling unit, wherein the hydrogen heat exchanger has a hydrogen inlet, a hydrogen outlet, a cooling medium inlet and a cooling medium outlet, and the cooling unit has a cooling medium inlet and a cooling medium outlet, wherein:

[0020] The hydrogen inlet and hydrogen outlet of the hydrogen heat exchanger are both connected to the hydrogenation pipeline, the cooling medium inlet of the hydrogen heat exchanger is connected to the cooling medium outlet of the cooling unit, the cooling medium outlet of the hydrogen heat exchanger is connected to the cooling medium inlet of the cooling unit, the signal input end of the cooling unit is connected to the output end of the controller, and the controller can dynamically adjust the refrigeration power of the cooling unit according to the hydrogen filling flow rate.

[0021] Preferably, the flow rate regulating valve is a variable control valve, and the controller adjusts the hydrogen filling flow rate by controlling the valve opening of the variable control valve.

[0022] Preferably, the flow rate regulating valve is a control valve group composed of N quantitative control valves connected in parallel, N is a positive integer, and N≥2, the signal input end of each quantitative control valve is respectively connected to the signal output end of the controller, each of the quantitative control valves in the control valve group has a different internal medium flow rate under the same conditions, and the quantitative control valves in the control valve group can be combined to obtain a plurality of valve combinations with different internal medium flow rates under the same conditions, and the controller adjusts the hydrogen filling flow rate by controlling the opening of different valve combinations in the control valve group.

[0023] Preferably, the flow rate detection module is a flow meter.

[0024] Preferably, the temperature detection module is a temperature transmitter, and the pressure detection module is a pressure transmitter.

[0025] The second object of the present application is to provide a control method for a hydrogenation control system.

[0026] The second application objective of the present application is achieved through the following technical solutions:

[0027] A control method for a hydrogenation control system according to any one of the above application purposes, comprising the following steps:

[0028] S1, when the hydrogenation control system is started, the controller controls the flow rate regulating valve and the hydrogen cooling device to be turned on, so that the hydrogen in the gas source hydrogen storage bottle is cooled by the hydrogen cooling device and then enters the hydrogen storage bottle of the hydrogenation equipment from the hydrogenation pipeline to hydrogenate the gas storage bottle of the hydrogenation equipment;

[0029] S2, during the hydrogenation process, the flow rate detection module detects the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment in real time, the temperature detection module detects the hydrogen temperature in the hydrogenation pipeline in real time, and the pressure detection module detects the hydrogen pressure in the hydrogenation pipeline in real time;

[0030] S3, the controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device.

[0031] Preferably, in step S3, the controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module, and the hydrogen filling flow rate detected by the flow rate detection module to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device, including:

[0032] S31, the controller determines a safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module, wherein the safe filling flow rate threshold range includes a safe filling flow rate lower limit value Q1 and a safe filling flow rate upper limit value Q2;

[0033] S32, the controller compares the hydrogen filling flow rate detected by the flow rate detection module with the safe filling flow rate threshold range,

[0034] If the hydrogen filling flow rate detected by the flow rate detection module is less than the safe filling flow rate lower limit value Q1 of the safe filling flow rate threshold range, execute S33,

[0035] If the hydrogen filling flow rate detected by the flow rate detection module is greater than the safe filling flow rate upper limit value Q2 of the safe filling flow rate threshold range, execute S34,

[0036] If the hydrogen filling flow rate detected by the flow rate detection module is greater than or equal to the lower limit value Q1 of the safe filling flow rate threshold range and less than or equal to the upper limit value Q2 of the safe filling flow rate threshold range, the controller controls the flow rate regulating valve to maintain the current open state, and the controller controls the hydrogen cooling device to maintain the current cooling power;

[0037] S33, the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to increase the hydrogen filling flow rate, so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen filling equipment is within the safe filling flow rate threshold range. At the same time, the controller increases the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, and jumps to S31 after a preset time.

[0038] S34, the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to reduce the hydrogen filling flow rate, so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen filling equipment is within the safe filling flow rate threshold range. At the same time, the controller reduces the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, and jumps to S31 after a preset time.

[0039] Preferably, the controller determines the safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module, including:

[0040] The safe filling flow rate threshold range that matches the hydrogen temperature and the hydrogen pressure is queried in a preset temperature-pressure-safe filling flow rate threshold range matching table by table lookup, wherein in the temperature-pressure-safe filling flow rate threshold range matching table, the hydrogen pressure, the hydrogen temperature and the safe filling flow rate threshold range correspond one to one.

[0041] The third object of the present application is to provide a hydrogenator that can dynamically adjust the temperature of the cooling medium in the hydrogen cooling device according to the hydrogen filling flow rate while ensuring safe hydrogenation.

[0042] The third application objective of this application is achieved through the following technical solutions:

[0043] A hydrogenation machine includes a hydrogenation gun and a hydrogenation control system as described in any one of the above application purposes, wherein the hydrogenation gun is connected to a gas outlet interface of a hydrogenation pipeline in the hydrogenation control system.

[0044] The beneficial effects of this application are as follows:

[0045] The hydrogenation control system and its control method and hydrogenator of the present application respectively detect the hydrogen temperature, hydrogen pressure and hydrogen filling flow rate in the hydrogenation pipeline by setting a temperature detection module, a pressure detection module and a flow rate detection module, and set a hydrogen cooling device to cool down the hydrogen transported to the hydrogenation pipeline by the gas source hydrogen storage bottle to reduce the initial temperature of the hydrogen, and set a flow rate regulating valve to adjust the hydrogen flow rate in the hydrogenation pipeline to adjust the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated, and control the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module by the controller to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device, so that the hydrogen filling flow rate and the hydrogen temperature can meet the safety filling requirements while minimizing the refrigeration power of the hydrogen cooling device, so that the temperature of the cooling medium in the hydrogen cooling device can be dynamically adjusted according to the hydrogen filling flow rate while ensuring safe hydrogenation, so as to achieve the effect of energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 This is a structural schematic diagram of a hydrogenation control system in one embodiment of the present application;

[0048] Figure 2 This is a flow chart of a control method of a hydrogenation control system in one embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In the embodiments provided in the present application, it should be understood that the disclosed methods and systems can be implemented in other ways. The system embodiments described below are merely schematic. For example, the division of units and modules is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or modules can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0051] In addition, all functional units in the embodiments of the present application may be integrated into one processor, or each unit may be a separate device, or two or more units may be integrated into one device; each functional unit in the embodiments of the present application may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0052] A person skilled in the art can understand that all or part of the steps of the following method embodiments can be completed by program instructions and related hardware. The aforementioned program instructions can be stored in a computer-readable storage medium. When the program instructions are executed, the steps of the following method embodiments are executed; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a magnetic disk or an optical disk, and other media that can store program codes.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0054] like Figure 1As shown, an embodiment of the present application provides a hydrogenation control system, which includes a hydrogenation pipeline, a hydrogen cooling device, a flow rate detection module, a flow rate regulating valve, a temperature detection module, a pressure detection module and a controller. One end of the hydrogenation pipeline is an air inlet interface for connecting to a gas source hydrogen storage bottle, and the other end of the hydrogenation pipeline is an air outlet interface for connecting to a hydrogen storage bottle of a to-be-hydrogenated equipment. The hydrogen cooling device is arranged on the end of the hydrogenation pipeline close to the air inlet interface, the flow rate regulating valve and the flow rate detection module are arranged on the hydrogenation pipeline and located at the hydrogen outlet end of the hydrogen cooling device, the temperature detection module and the pressure detection module are both arranged on the hydrogenation pipeline and located at one end of the hydrogenation pipeline close to the air outlet interface, the signal output ends of the flow rate detection module, the temperature detection module and the pressure detection module are respectively connected to the input end of the controller, and the signal input ends of the hydrogen cooling device and the flow rate regulating valve are respectively connected to the signal output end of the controller.

[0055] Specifically, the temperature detection module is used to detect the hydrogen temperature in the hydrogenation pipeline; the pressure detection module is used to detect the hydrogen pressure in the hydrogenation pipeline; the flow rate detection module is used to detect the hydrogen filling flow rate in the hydrogenation pipeline; the hydrogen cooling device is used to cool the hydrogen transported from the gas source hydrogen storage bottle to the hydrogenation pipeline to reduce the initial temperature of the hydrogen; the flow rate regulating valve is used to adjust the hydrogen flow rate in the hydrogenation pipeline to adjust the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated; the controller is used to control the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device.

[0056] The working principle of the hydrogenation control system in the embodiment of the present application is as follows:

[0057] When in use, the air inlet interface of the hydrogenation pipeline is connected to the gas source hydrogen storage bottle, and the air outlet interface of the hydrogenation pipeline is connected to the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated, and then the hydrogenation control system is started, and the hydrogen cooling device is started to cool the hydrogen transported from the gas source hydrogen storage bottle to the hydrogenation pipeline according to the preset initial refrigeration power to reduce the initial temperature of the hydrogen, and the flow rate regulating valve is opened according to the preset initial opening, so that the hydrogen transported from the gas source hydrogen storage bottle to the hydrogenation pipeline is cooled and cooled by the hydrogen cooling device and then transported to the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated through the regulating valve to realize the hydrogenation of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated. During the hydrogenation process, the temperature The detection module detects the hydrogen temperature in the hydrogenation pipeline in real time, the pressure detection module detects the hydrogen pressure in the hydrogenation pipeline in real time, and the flow rate detection module detects the hydrogen filling flow rate in the hydrogenation pipeline in real time. The controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device, so that the hydrogen filling flow rate and the hydrogen temperature can meet the safety filling requirements while minimizing the refrigeration power of the hydrogen cooling device.

[0058] The hydrogenation control system of the embodiment of the present application is provided with a temperature detection module, a pressure detection module and a flow rate detection module to respectively detect the hydrogen temperature, hydrogen pressure and hydrogen filling flow rate in the hydrogenation pipeline, and a hydrogen cooling device is provided to cool down the hydrogen transported from the gas source hydrogen storage bottle to the hydrogenation pipeline to reduce the initial temperature of the hydrogen, and a flow rate regulating valve is provided to adjust the hydrogen flow rate in the hydrogenation pipeline to adjust the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated, and the flow rate regulating valve and the hydrogen cooling device are controlled by a controller according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device, so that the hydrogen filling flow rate and the hydrogen temperature can meet the safety filling requirements while minimizing the refrigeration power of the hydrogen cooling device, so that the temperature of the cooling medium in the hydrogen cooling device can be dynamically adjusted according to the hydrogen filling flow rate while ensuring safe hydrogenation, so as to achieve the effect of energy saving and emission reduction.

[0059] In one embodiment, the hydrogen cooling device includes a hydrogen heat exchanger and a cooling unit, wherein the hydrogen heat exchanger has a hydrogen inlet, a hydrogen outlet, a cooling medium inlet and a cooling medium outlet, and the cooling unit has a cooling medium inlet and a cooling medium outlet, wherein:

[0060] The hydrogen inlet and hydrogen flow outlet of the hydrogen heat exchanger are both connected to the hydrogenation pipeline, the cooling medium flow inlet of the hydrogen heat exchanger is connected to the cooling medium outlet of the cooling unit, the cooling medium flow outlet of the hydrogen heat exchanger is connected to the cooling medium inlet of the cooling unit, and the signal input end of the cooling unit is connected to the output end of the controller. The controller can dynamically adjust the refrigeration power of the cooling unit according to the hydrogen filling flow rate.

[0061] In this embodiment, when the cooling unit is working, its internal cooling mechanism is refrigerated and cooled. The cooled cooling medium flows into the hydrogen heat exchanger to cool and cool the hydrogen flowing through the hydrogen heat exchanger. The cooled hydrogen enters the hydrogen storage bottle of the hydrogenation equipment through the flow regulating valve on the hydrogenation pipeline. The cooling medium after heat exchange flows back to the cooling unit to continue to be refrigerated and cooled. This cycle is repeated, and the hydrogen flowing through the hydrogenation pipeline is continuously cooled and cooled through the cooperation of the hydrogen heat exchanger and the cooling unit.

[0062] In one embodiment, the flow rate regulating valve is a variable control valve, and the controller adjusts the hydrogen filling flow rate by controlling the valve opening of the variable control valve.

[0063] In this embodiment, a variable control valve with controllable opening is used as a flow rate regulating valve. When adjusting the hydrogen filling flow rate, the valve opening of the variable control valve is controlled by a controller, which makes the overall system architecture simpler and the control simpler.

[0064] In one embodiment, the flow rate regulating valve is a control valve group composed of N quantitative control valves connected in parallel, N is a positive integer, and N≥2, the signal input end of each quantitative control valve is respectively connected to the signal output end of the controller, each quantitative control valve in the control valve group has a different internal medium flow rate under the same conditions, and each quantitative control valve in the control valve group can be combined to obtain a plurality of valve combinations with different internal medium flow rates under the same conditions, and the controller adjusts the hydrogen filling flow rate by controlling the opening of different valve combinations in the control valve group.

[0065] Since the variable control valves used in hydrogen refueling stations are expensive, usually more than ten times the price of conventional quantitative control valves, in this embodiment, the hydrogen filling flow rate is adjusted by adopting a control valve group composed of N quantitative control valves with different internal medium flow rates under the same conditions in parallel. The individual quantitative control valves in the control valve group can be combined to obtain a plurality of valve combinations with different internal medium flow rates under the same conditions. In this way, different valve combinations can be opened to adapt to appropriate filling flow rate requirements. The expensive electronically controlled variable valve with adjustable flow rate is replaced by a low-cost quantitative control valve combination combined with a corresponding control strategy. The controller adjusts the hydrogen filling flow rate by controlling the opening of different valve combinations in the control valve group, thereby effectively reducing the equipment cost while meeting the hydrogenation flow rate requirements under different working conditions.

[0066] For example, the control valve group is composed of two quantitative control valves V1 and V2 in parallel with different internal medium flow rates under the same conditions, and the internal medium flow rates of the two quantitative control valves under the same conditions are v1 and v2 respectively, then the opening states of the two quantitative control valves have three valve combinations, namely V1 open (V2 closed), V2 open (V1 closed), V1 and V2 open at the same time, which can control three different hydrogen filling flow rates v1, v2, v1+v2. It should be noted that the "under the same conditions" refers to the conditions of the same hydrogen temperature and hydrogen pressure.

[0067] In one embodiment, the flow rate detection module is a flow meter. Since the existing hydrogenation control system has a flow meter for measuring the hydrogenation flow rate, and the flow meter usually has the function of detecting the flow rate of the medium, in this embodiment, the flow rate detection module is implemented by a flow meter, without adding additional hardware facilities, so as to better control the equipment cost and system complexity of the hydrogenation system.

[0068] In one embodiment, the temperature detection module is a temperature transmitter, and the pressure detection module is a pressure transmitter. Existing hydrogenation control systems usually have their own temperature transmitter and pressure transmitter to detect the hydrogen temperature and hydrogen pressure in the pipeline during hydrogenation, respectively. Therefore, the temperature detection module and the pressure detection module in this embodiment use a temperature transmitter and a pressure transmitter, respectively, so that the temperature and pressure detection equipment in the existing hydrogenation system can be used without adding additional hardware facilities, thereby better controlling the equipment cost and system complexity of the hydrogenation control system.

[0069] An embodiment of the present application also provides a hydrogenation machine, which includes a hydrogenation gun and a hydrogenation control system in any of the above embodiments, wherein the hydrogenation gun is connected to a gas outlet interface of a hydrogenation pipeline in the hydrogenation control system.

[0070] The hydrogenation machine in this embodiment is implemented based on the hydrogenation control system in any of the above embodiments. Therefore, the hydrogenation machine has the same working principle and technical effect as the hydrogenation control system in the above embodiments, which will not be repeated here.

[0071] like Figure 2 As shown, the embodiment of the present application also provides a control method of the hydrogenation control system in any of the above embodiments, and the method may include the following steps:

[0072] S1, when the hydrogenation control system is started, the controller controls the flow rate regulating valve and the hydrogen cooling device to open, so that the hydrogen in the gas source hydrogen storage bottle is cooled by the hydrogen cooling device and then enters the hydrogen storage bottle of the hydrogenation equipment from the hydrogenation pipeline to achieve hydrogenation of the gas storage bottle of the hydrogenation equipment;

[0073] Specifically, in this embodiment, when the controller controls the hydrogen cooling device to be turned on, the hydrogen cooling device works according to a preset initial cooling power, and the initial cooling power can be set as needed.

[0074] Specifically, in this embodiment, when the controller controls the flow rate regulating valve to open, if the flow rate regulating valve is a variable control valve, the controller controls the variable control valve to open according to a preset initial opening, and the initial opening can be set as needed;

[0075] When the controller controls the flow rate regulating valve to open, if the flow rate regulating valve is a control valve group composed of N quantitative control valves connected in parallel, the controller controls one of the quantitative control valves in the control valve group to open according to a preset initial valve opening control strategy, wherein the initial valve opening control strategy adopts one of the following two strategies:

[0076] Initial valve opening control strategy 1: randomly open a quantitative control valve in the control valve group;

[0077] Initial valve opening control strategy 2: Open the valve combination with the middle flow rate of the internal medium in the control valve group.

[0078] For example, when the number of valve combinations in the control valve group is an even number, there are two valve combinations with a middle flow rate of the internal medium, and any one of the valve combinations can be selected to open; if the control valve group has only two valve combinations, V1 and V2, and the internal medium flow rates of the two quantitative control valves under the same conditions are v1 and v2 respectively, and v2>v1, then the two quantitative control valves have three different combinations, namely, V1 is open (V2 is closed), V2 is open (V1 is closed), and V1 and V2 are opened at the same time, corresponding to three different hydrogen filling flow rates v1, v2, and v1+v2. If the flow rate of v2 is in the middle, then V2 is opened;

[0079] When the number of valve combinations in the control valve group is odd (for example, m), there is only one valve combination with a middle flow rate of the internal medium, that is, the valve combination with the internal medium flow rate at the (m+1) / 2th position is opened.

[0080] In this embodiment, when the hydrogenation control system is started, it is preferred to adopt the initial valve opening control strategy 2 to control the opening of the valve combination with the middle flow rate of the internal medium in the control valve group to avoid the hydrogen filling flow rate being too large or too small at the beginning.

[0081] S2, during the hydrogenation process, the flow rate detection module detects the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment in real time, the temperature detection module detects the hydrogen temperature in the hydrogenation pipeline in real time, and the pressure detection module detects the hydrogen pressure in the hydrogenation pipeline in real time;

[0082] S3, the controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device.

[0083] In this embodiment, first, when the hydrogenation control system is started, the controller controls the flow rate regulating valve and the hydrogen cooling device to be opened, so that the hydrogen in the gas source hydrogen storage bottle is cooled by the hydrogen cooling device and then enters the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated from the hydrogenation pipeline to realize hydrogenation of the gas storage bottle of the hydrogenation equipment to be hydrogenated; then, during the hydrogenation process, the flow rate detection module detects the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated in real time, the temperature detection module detects the hydrogen temperature in the hydrogenation pipeline in real time, and the pressure detection module detects the hydrogen pressure in the hydrogenation pipeline in real time; finally, the controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device, so that the hydrogen filling flow rate and the hydrogen temperature can meet the safety filling requirements while minimizing the refrigeration power of the hydrogen cooling device, so that the temperature of the cooling medium in the hydrogen cooling device can be dynamically adjusted according to the hydrogen filling flow rate while ensuring safe hydrogenation, so as to achieve the effect of energy saving and emission reduction.

[0084] In one embodiment, in step S3, the controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module, and the hydrogen filling flow rate detected by the flow rate detection module to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device, including:

[0085] S31, the controller determines a safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module, wherein the safe filling flow rate threshold range includes a safe filling flow rate lower limit value Q1 and a safe filling flow rate upper limit value Q2; it can be understood that Q2>Q1;

[0086] Since the temperature rise rate of hydrogen during the hydrogenation process is different at different temperatures and pressures, the safe filling flow rate threshold range is also different. Therefore, in this embodiment, when the controller controls the flow rate regulating valve according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, the controller first determines the safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module. In this way, the adjustment of the hydrogen filling flow rate is more accurate and reliable, and can maximize the hydrogenation efficiency while ensuring safe hydrogenation.

[0087] Specifically, when the controller determines the safe filling flow rate threshold range based on the hydrogen temperature and the hydrogen pressure, the hydrogen temperature and the hydrogen pressure can be input as independent variables into a pre-constructed hydrogen filling flow rate calculation model to calculate the safe filling flow rate threshold range. The hydrogen filling flow rate calculation model can be constructed through experiments based on the degree of influence of the hydrogen pressure and the hydrogen temperature on the temperature rise of the hydrogen refueling equipment to be refueled, as well as the correlation between the temperature rise of the hydrogen refueling equipment to be refueled and the hydrogen filling flow rate.

[0088] In one embodiment, in order to reduce the amount of calculation and improve the calculation speed of the safe filling flow rate threshold range, the safe filling flow rate threshold range can be determined according to the hydrogen temperature and the hydrogen pressure by looking up a table. The specific method is as follows:

[0089] The safe filling flow rate threshold range that matches the hydrogen temperature and hydrogen pressure is queried in the preset temperature-pressure-safe filling flow rate threshold range matching table by table lookup, wherein in the temperature-pressure-safe filling flow rate threshold range matching table, the hydrogen pressure, hydrogen temperature and safe filling flow rate threshold range correspond one to one.

[0090] It should be noted that in the temperature-pressure-safe filling flow rate threshold range matching table, the hydrogen pressure, hydrogen temperature and safe filling flow rate threshold range are all range values ​​that include multiple data points. This can effectively reduce the complexity of the table.

[0091] During specific matching, it is determined by judging which pressure range and temperature range the hydrogen pressure and hydrogen temperature respectively correspond to in the temperature-pressure-safe filling flow rate threshold range matching table, and then searching the table for the safe filling flow rate threshold range corresponding to the pressure range and temperature range. This determination method has small computational complexity, fast speed, and is simple and reliable.

[0092] S32, the controller compares the hydrogen filling flow rate detected by the flow rate detection module with the safe filling flow rate threshold range,

[0093] If the hydrogen filling flow rate detected by the flow rate detection module is less than the safe filling flow rate lower limit Q1 of the safe filling flow rate threshold range (indicating that the hydrogen filling flow rate is too small at this time, resulting in low hydrogenation efficiency, and the hydrogen filling flow rate can be appropriately increased to improve the hydrogenation efficiency), execute S33,

[0094] If the hydrogen filling flow rate detected by the flow rate detection module is greater than the safe filling flow rate upper limit value Q2 within the safe filling flow rate threshold range (indicating that the hydrogen filling flow rate is too high at this time, which will cause the temperature rise of the hydrogen storage bottle of the hydrogenation equipment to be hydrogenated during the hydrogenation process to be too large, thus posing a safety hazard and requiring the hydrogen filling flow rate to be appropriately reduced), execute S34,

[0095] If the hydrogen filling flow rate detected by the flow rate detection module is greater than or equal to the safe filling flow rate lower limit value Q1 of the safe filling flow rate threshold range and less than or equal to the safe filling flow rate upper limit value Q2 of the safe filling flow rate threshold range (indicating that the hydrogen filling flow rate has met the dual requirements of safe hydrogenation and ensuring hydrogenation efficiency at this time), the controller controls the flow rate regulating valve to maintain the current open state, and the controller controls the hydrogen cooling device to maintain the current refrigeration power;

[0096] S33, the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to increase the hydrogen filling flow rate, so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen filling equipment is within the safe filling flow rate threshold range. At the same time, the controller increases the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, and jumps to S31 after the preset time;

[0097] If the hydrogen filling flow rate detected by the flow rate detection module is less than the lower limit value Q1 of the safe filling flow rate threshold range, the hydrogen filling flow rate can be increased so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen refueling equipment is within the safe filling flow rate threshold range. Since the hydrogen filling flow rate is increased, the temperature rise of the hydrogen storage bottle of the hydrogen refueling equipment will increase. At this time, in order to make the hydrogen temperature in the hydrogen storage bottle of the hydrogen refueling equipment not exceed the maximum operating temperature of the hydrogen storage bottle of the hydrogen refueling equipment, it is necessary to appropriately lower the initial temperature of the hydrogen. At this time, the controller increases the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, improves the refrigeration effect, and thus reduces the initial temperature of the hydrogen. After executing the above-mentioned preset valve adjustment control strategy and the preset refrigeration power adjustment control strategy for a preset period of time, it jumps to S31 here, and re-determines the safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module.

[0098] Specifically, the preset time length is set according to needs, generally 5S to 20S. In this embodiment, the preset time length is set to 10S.

[0099] Specifically, in this embodiment, the method in which the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to increase the hydrogen filling flow rate is as follows:

[0100] 1. If the flow regulating valve is a variable control valve, the controller controls the variable control valve to increase the opening of the variable control valve according to a preset opening increase amount, and the preset opening increase amount can be set as needed;

[0101] 2. If the flow rate regulating valve is a control valve group composed of N quantitative control valves connected in parallel, the controller controls the valve combination in the control valve group whose internal medium flow rate is greater than the internal medium flow rate of the currently opened valve combination under the same conditions to open. The specific method is as follows:

[0102] The controller controls the valve combination in the control valve group whose internal medium flow rate is one level higher than that of the valve combination currently opened under the same conditions to open (other quantitative control valves are closed) according to the valve combination sequence table of the control valve group stored in advance, and then continues to detect the hydrogen filling flow rate of the hydrogenation equipment in real time through the flow rate detection module. If the hydrogen filling flow rate detected by the flow rate detection module is still less than the safe filling flow rate threshold range, the controller continues to control the valve combination in the control valve group whose internal medium flow rate is one level higher than that of the valve combination that has been opened this time under the same conditions to open (other quantitative control valves are closed) according to the valve combination sequence table of the control valve group stored in advance, until the hydrogen filling flow rate detected after the currently opened valve combination is opened is within the safe filling flow rate threshold range.

[0103] Specifically, in this embodiment, the method in which the controller increases the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy is as follows:

[0104] The controller controls the hydrogen cooling device to increase the power of the hydrogen cooling device according to a preset power increase amount, and the preset power increase amount can be set as needed.

[0105] S34, the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to reduce the hydrogen filling flow rate, so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen filling equipment is within the safe filling flow rate threshold range. At the same time, the controller reduces the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, and jumps to S31 after the preset time.

[0106] If the hydrogen filling flow rate detected by the flow rate detection module is greater than the safe filling flow rate upper limit value Q2 of the safe filling flow rate threshold range, the hydrogen filling flow rate can be reduced so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen refueling equipment is within the safe filling flow rate threshold range. Since the hydrogen filling flow rate is reduced, the temperature rise of the hydrogen storage bottle of the hydrogen refueling equipment will be reduced. At this time, the hydrogen temperature in the hydrogen storage bottle of the hydrogen refueling equipment will not exceed the maximum operating temperature of the hydrogen storage bottle of the hydrogen refueling equipment. Therefore, in order to achieve the effect of energy saving and emission reduction, the controller reduces the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, reduces the refrigeration effect, and achieves energy saving and emission reduction. After executing the above-mentioned preset valve adjustment control strategy and the preset refrigeration power adjustment control strategy for a preset period of time, it jumps to S31 here, and re-determines the safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module.

[0107] Specifically, in this embodiment, the method in which the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to reduce the hydrogen filling flow rate is as follows:

[0108] 1. If the flow regulating valve is a variable control valve, the controller controls the variable control valve to reduce the opening of the variable control valve according to a preset opening reduction amount, and the preset opening reduction amount can be set as needed;

[0109] 2. If the flow rate regulating valve is a control valve group composed of N quantitative control valves connected in parallel, the controller controls the valve combination in the control valve group whose internal medium flow rate is smaller than the internal medium flow rate of the currently opened valve combination under the same conditions to open. The specific method is as follows:

[0110] The controller controls the valve combination in the control valve group whose internal medium flow rate is one level lower than the internal medium flow rate of the valve combination currently opened under the same conditions to open (other quantitative control valves are closed) according to the valve combination sequence table of the control valve group stored in advance, and then continues to detect the hydrogen filling flow rate of the hydrogenation equipment in real time through the flow rate detection module. If the hydrogen filling flow rate detected by the flow rate detection module is still less than the safe filling flow rate threshold range, the controller continues to control the valve combination in the control valve group whose internal medium flow rate is one level lower than the internal medium flow rate of the valve combination that has been opened this time under the same conditions to open (other quantitative control valves are closed) according to the valve combination sequence table of the control valve group stored in advance, until the hydrogen filling flow rate detected after the currently opened valve combination is opened is within the safe filling flow rate threshold range.

[0111] Specifically, in this embodiment, the method in which the controller reduces the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy is as follows:

[0112] The controller controls the hydrogen cooling device to reduce the power of the hydrogen cooling device according to a preset power reduction amount, and the preset power reduction amount can be set as needed.

[0113] It should be noted that, in this embodiment, the valve combination sequence table of the control valve group has the valve number that needs to be opened corresponding to each valve combination, and all valve combinations are arranged in the order of the internal medium flow rate of each valve combination from small to large or from large to small under the same conditions.

[0114] When the hydrogen filling flow rate detected by the flow rate detection module is greater than / less than the safe filling flow rate threshold range, the hydrogen filling flow rate of the control valve group can be gradually reduced / increased, thereby effectively reducing the fluctuation of the hydrogen filling flow rate in the hydrogen filling pipeline during the hydrogenation process and improving the safety of hydrogenation.

[0115] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0116] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0117] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, software modules executed by a processor, or a combination of the two. The software modules may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0118] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydrogenation control system, characterized in that: It includes a hydrogenation pipeline, a hydrogen cooling device, a flow rate detection module, a flow rate regulating valve, a temperature detection module, a pressure detection module and a controller. One end of the hydrogenation pipeline is an air inlet interface for connecting to a gas source hydrogen storage bottle, and the other end of the hydrogenation pipeline is an air outlet interface for connecting to a hydrogen storage bottle of a hydrogenation equipment to be hydrogenated. The hydrogen cooling device is arranged on the end of the hydrogenation pipeline close to the air inlet interface. The flow rate regulating valve and the flow rate detection module are arranged on the hydrogenation pipeline and located at the hydrogen outlet end of the hydrogen cooling device. The temperature detection module and the pressure detection module are both arranged on the hydrogenation pipeline and located at the end of the hydrogenation pipeline close to the air outlet interface. The signal output ends of the flow rate detection module, the temperature detection module and the pressure detection module are respectively connected to the input end of the controller, and the signal input ends of the hydrogen cooling device and the flow rate regulating valve are respectively connected to the signal output end of the controller, wherein: The temperature detection module is used to detect the temperature of hydrogen in the hydrogenation pipeline; The pressure detection module is used to detect the hydrogen pressure in the hydrogenation pipeline; The flow rate detection module is used to detect the hydrogen filling flow rate in the hydrogen filling pipeline; The hydrogen cooling device is used to cool the hydrogen delivered from the gas source hydrogen storage bottle to the hydrogenation pipeline to reduce the initial temperature of the hydrogen; The flow rate regulating valve is used to adjust the hydrogen flow rate in the hydrogenation pipeline to adjust the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment; The controller is used to control the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device.

2. The hydrogenation control system according to claim 1, characterized in that: The hydrogen cooling device comprises a hydrogen heat exchanger and a cooling unit, wherein the hydrogen heat exchanger has a hydrogen inlet, a hydrogen outlet, a cooling medium inlet and a cooling medium outlet, and the cooling unit has a cooling medium inlet and a cooling medium outlet, wherein: The hydrogen inlet and hydrogen outlet of the hydrogen heat exchanger are both connected to the hydrogenation pipeline, the cooling medium inlet of the hydrogen heat exchanger is connected to the cooling medium outlet of the cooling unit, the cooling medium outlet of the hydrogen heat exchanger is connected to the cooling medium inlet of the cooling unit, the signal input end of the cooling unit is connected to the output end of the controller, and the controller can dynamically adjust the refrigeration power of the cooling unit according to the hydrogen filling flow rate.

3. The hydrogenation control system according to claim 1, characterized in that: The flow rate regulating valve is a variable control valve, and the controller adjusts the hydrogen filling flow rate by controlling the valve opening of the variable control valve.

4. The hydrogenation control system according to claim 1, characterized in that: The flow rate regulating valve is a control valve group composed of N quantitative control valves connected in parallel, N is a positive integer, and N≥2, the signal input end of each quantitative control valve is respectively connected to the signal output end of the controller, each of the quantitative control valves in the control valve group has a different internal medium flow rate under the same conditions, and the quantitative control valves in the control valve group can be combined to obtain a plurality of valve combinations with different internal medium flow rates under the same conditions, and the controller adjusts the hydrogen filling flow rate by controlling different valve combinations in the control valve group to open.

5. The hydrogenation control system according to any one of claims 1 to 4, characterized in that: The flow rate detection module is a flow meter.

6. The hydrogenation control system according to claim 5, characterized in that: The temperature detection module is a temperature transmitter, and the pressure detection module is a pressure transmitter.

7. A hydrogenation machine, comprising a hydrogenation gun, characterized in that: It also includes the hydrogenation control system according to any one of claims 1 to 6, wherein the hydrogenation gun is connected to the gas outlet interface of the hydrogenation pipeline in the hydrogenation control system.

8. A control method for a hydrogenation control system according to any one of claims 1 to 6, characterized in that: The steps include: S1, when the hydrogenation control system is started, the controller controls the flow rate regulating valve and the hydrogen cooling device to be turned on, so that the hydrogen in the gas source hydrogen storage bottle is cooled by the hydrogen cooling device and then enters the hydrogen storage bottle of the hydrogenation equipment from the hydrogenation pipeline to hydrogenate the gas storage bottle of the hydrogenation equipment; S2, during the hydrogenation process, the flow rate detection module detects the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogenation equipment in real time, the temperature detection module detects the hydrogen temperature in the hydrogenation pipeline in real time, and the pressure detection module detects the hydrogen pressure in the hydrogenation pipeline in real time; S3, the controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module and the hydrogen filling flow rate detected by the flow rate detection module, so as to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device.

9. The control method of the hydrogenation control system according to claim 8, characterized in that: In step S3, the controller controls the flow rate regulating valve and the hydrogen cooling device according to the hydrogen temperature detected by the temperature detection module, the hydrogen pressure detected by the pressure detection module, and the hydrogen filling flow rate detected by the flow rate detection module to dynamically adjust the hydrogen filling flow rate and the refrigeration power of the hydrogen cooling device, including: S31, the controller determines a safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module, wherein the safe filling flow rate threshold range includes a safe filling flow rate lower limit value Q1 and a safe filling flow rate upper limit value Q2; S32, the controller compares the hydrogen filling flow rate detected by the flow rate detection module with the safe filling flow rate threshold range, If the hydrogen filling flow rate detected by the flow rate detection module is less than the safe filling flow rate lower limit value Q1 of the safe filling flow rate threshold range, execute S33, If the hydrogen filling flow rate detected by the flow rate detection module is greater than the safe filling flow rate upper limit value Q2 of the safe filling flow rate threshold range, execute S34, If the hydrogen filling flow rate detected by the flow rate detection module is greater than or equal to the lower limit value Q1 of the safe filling flow rate threshold range and less than or equal to the upper limit value Q2 of the safe filling flow rate threshold range, the controller controls the flow rate regulating valve to maintain the current open state, and the controller controls the hydrogen cooling device to maintain the current cooling power; S33, the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to increase the hydrogen filling flow rate, so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen filling equipment is within the safe filling flow rate threshold range. At the same time, the controller increases the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, and jumps to S31 after a preset time. S34, the controller adjusts the opening state of the flow rate regulating valve according to the preset valve adjustment control strategy to reduce the hydrogen filling flow rate, so that the hydrogen filling flow rate of the hydrogen storage bottle of the hydrogen filling equipment is within the safe filling flow rate threshold range. At the same time, the controller reduces the refrigeration power of the hydrogen cooling device according to the preset refrigeration power adjustment control strategy, and jumps to S31 after a preset time.

10. The control method of the hydrogenation control system according to claim 9, characterized in that: In step S31, the controller determines the safe filling flow rate threshold range according to the hydrogen temperature detected by the temperature detection module and the hydrogen pressure detected by the pressure detection module, including: The safe filling flow rate threshold range that matches the hydrogen temperature and the hydrogen pressure is queried in a preset temperature-pressure-safe filling flow rate threshold range matching table by table lookup, wherein in the temperature-pressure-safe filling flow rate threshold range matching table, the hydrogen pressure, the hydrogen temperature and the safe filling flow rate threshold range correspond one to one.

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