Gas output assembly and electrolytic hydrogen production system

Abstract

The embodiment of the utility model discloses a gas output assembly and an electrolytic hydrogen production system, and relates to the technical field of gas preparation devices.The gas output assembly comprises a jet device, a storage container and a flow supply pipeline, the output end of the storage container is connected with a flow mixing pipeline, and the flow mixing pipeline is connected with the suction end of the jet device; the mixed flow pipeline is provided with a mixed flow regulating valve, and the mixed flow regulating valve is used for regulating and controlling the gas flow in the mixed flow pipeline; the flow supply pipeline is provided with a first branch pipe and a second branch pipe, the first branch pipe is connected with the input end of the jet device, the second branch pipe is connected with the input end of the storage container, the flow supply pipeline is provided with a flow control valve, and the flow control valve is used for controlling gas to flow to the first branch pipe or the second branch pipe. According to the technical scheme provided by the embodiment of the invention, waste of gas produced by the electrolytic hydrogen production system is reduced, and the practicability and reliability of the electrolytic hydrogen production system are improved.

Description

Technical Field

[0001] The embodiments in the present application relate to the technical field of gas preparation devices, and particularly to a gas output component and an electrolytic hydrogen production system. Background Art

[0002] In the related art, since the temperature of the electrolytic solution in the electrolytic cell is relatively low when the electrolytic hydrogen production system is just started, the electrolytic cell operating at a relatively low power is likely to result in the purity of the generated gas not meeting the qualified standard. Therefore, most electrolytic hydrogen production systems will vent the unqualified gas produced during the initial operation of the system, and then purify and collect the gas after the temperature of the electrolytic solution reaches an appropriate temperature to ensure the stable operation of the electrolytic hydrogen production system.

[0003] However, venting the gas during the initial operation of the electrolytic hydrogen production system will waste some of the gas produced by the electrolytic hydrogen production system. Summary of the Utility Model

[0004] The main purpose of the present application is to propose a gas output component and an electrolytic hydrogen production system, aiming to collect and utilize the gas with unqualified purity by using the gas output component, reduce the waste of the gas produced by the electrolytic hydrogen production system, and improve the practicability and reliability of the electrolytic hydrogen production system.

[0005] To achieve the above object, a gas output component proposed in an embodiment of the present application includes a jet ejector, a storage container, and a supply pipeline. The output end of the storage container is connected to a mixing pipeline, the mixing pipeline is connected to the suction end of the jet ejector, and a mixing regulating valve is provided on the mixing pipeline for regulating the gas flow rate in the mixing pipeline. The supply pipeline is provided with a first branch pipe and a second branch pipe. The first branch pipe is connected to the input end of the jet ejector, and the second branch pipe is connected to the input end of the storage container. A flow control valve member is provided on the supply pipeline for controlling the gas flow to the first branch pipe or the second branch pipe.

[0006] In one embodiment, the supply pipeline is provided with a supply regulating valve for regulating the gas flow rate in the supply pipeline.

[0007] In one embodiment, the gas output component further includes a detection mechanism, which includes a first detection mechanism and a second detection mechanism. The first detection mechanism is used to detect the flow rate and purity of the gas flowing through the supply pipeline. The second detection mechanism is used to detect the flow rate and purity of the gas flowing through the mixing pipeline.

[0008] In one embodiment, the first detection mechanism includes a first flow meter and a first analyzer, and the first flow meter and the first analyzer are respectively connected to the supply pipeline.

[0009] In one embodiment, the first flowmeter and the supply flow regulating valve are arranged in sequence along the gas flow direction in the supply pipeline.

[0010] In one embodiment, the second detection mechanism includes a second flowmeter and a second analyzer. The second flowmeter is arranged in the mixing pipeline, and the second analyzer is arranged in the mixing pipeline or the storage container.

[0011] In one embodiment, the second flowmeter and the mixing regulating valve are arranged in sequence along the gas flow direction in the mixing pipeline.

[0012] In one embodiment, the supply pipeline includes a main pipeline, and one end of the main pipeline is divergently connected to the first branch pipeline and the second branch pipeline. The flow control valve member includes a first on-off valve and a second on-off valve. The first on-off valve is arranged on the first branch pipeline, and the second on-off valve is arranged on the second branch pipeline.

[0013] In one embodiment, the flow control valve member is a two-position three-way valve. The supply pipeline is connected to the input end of the two-position three-way valve, and the first branch pipeline and the second branch pipeline are respectively connected to the two output ends of the two-position three-way valve.

[0014] In one embodiment, the storage container is provided with a remaining amount detection device for detecting the gas volume in the storage container.

[0015] In one embodiment, the gas output assembly further includes a gas-liquid separation device arranged in the supply pipeline.

[0016] One embodiment of the present application further provides an electrolytic hydrogen production system, which includes a preparation device, a collection device and a gas output assembly. The gas output assembly is the gas output assembly described above, and the gas output assembly is pipeline-connected to the preparation device and the collection device.

[0017] The technical solution of the present application can, at the initial stage of the operation of the electrolytic hydrogen production system, control the gas flow direction of the supply pipeline to the first branch pipe by setting a storage container and a jet injector. The gas with a purity that does not meet the qualified standard produced at the initial stage of the system operation flows through the first branch pipe and is stored in the storage container. When the electrolytic hydrogen production system stably produces gas with a qualified purity, the control valve is adjusted to control the gas flow direction of the supply pipeline to the second branch pipe, so that the gas with a qualified purity flows through the jet injector and is output to the collection device for collection and treatment. At this time, under the structural action of the jet injector, the gas with a qualified purity flowing through the jet injector can form a certain negative pressure environment in the jet injector. At this time, the jet injector can suck the gas with an unqualified purity stored in the storage container into the jet injector from the suction end through the mixing pipeline. By using the mixing regulating valve to control the flow rate of the gas flow with an unqualified purity, the purity of the gas mixed and output by the jet injector can meet the requirements of the qualified standard, realizing the storage and utilization of the gas with an unqualified purity, ensuring the full output of the gas produced by the electrolytic hydrogen production system, reducing the energy consumption waste of the electrolytic hydrogen production system, and improving the practicability and reliability of the gas output component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments in the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0019] Figure 1 Structural schematic diagram of a gas output component provided for an embodiment of the present application;

[0020] Figure 2 Structural schematic diagram of a gas output component provided for another embodiment of the present application;

[0021] Figure 3 Structural schematic diagram of a gas output component provided for still another embodiment of the present application;

[0022] Figure 4 Structural schematic diagram of an electrolytic hydrogen production system provided for an embodiment of the present application.

[0023] Explanation of the reference numerals in the drawings:

[0024] 100. Gas output component; 10. Ejector; 30. Storage container; 31. Mixing pipeline; 33. Mixing regulating valve; 50. Supply pipeline; 51. Main pipeline; 511. Supply regulating valve; 53. First branch pipe; 531. First switching valve; 55. Second branch pipe; 551. Second switching valve; 57. Two-position three-way valve; 71. First detection mechanism; 711. First flowmeter; 713. First analyzer; 73. Second detection mechanism; 731. Second flowmeter; 733. Second analyzer; 90. Gas-liquid separation device; 200. Preparation device; 400. Collection device; 1000. Electrolytic hydrogen production system. Detailed implementation manners

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in multiple embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in multiple embodiments of the present application, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions such as "first" and "second" involved in multiple embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0028] In the related art, since the temperature of the electrolytic solution in the electrolyzer is relatively low when the electrolytic hydrogen production system is just started, operating the electrolyzer at a relatively low power easily results in the purity of the generated gas not meeting the qualified standard. Therefore, most electrolytic hydrogen production systems will vent the unqualified gas produced during the initial operation of the system, and then purify and collect the gas after the temperature of the electrolytic solution reaches an appropriate temperature to ensure the stable operation of the electrolytic hydrogen production system. However, venting the gas during the initial operation of the electrolytic hydrogen production system will waste some of the gas produced by the electrolytic hydrogen production system, reducing the practicability and reliability of the electrolytic hydrogen production system. To address the above problems, the present application proposes a gas output assembly 100.

[0029] Please refer to Figures 1 to 4 , in an embodiment of the present application, the gas output assembly 100 includes an ejector 10, a storage container 30, and a supply pipeline 50. The output end of the storage container 30 is connected to a mixing pipeline 31, and the mixing pipeline 31 is connected to the suction end of the ejector 10. The mixing pipeline 31 is provided with a mixing regulating valve 33 for regulating the gas flow rate in the mixing pipeline 31; the supply pipeline 50 is provided with a first branch pipe 53 and a second branch pipe 55. The first branch pipe 53 is connected to the input end of the ejector 10, and the second branch pipe 55 is connected to the input end of the storage container 30. The supply pipeline 50 is provided with a flow control valve member for controlling the gas flow to the first branch pipe 53 or the second branch pipe 55.

[0030] It can be understood that the electrolytic hydrogen production system 1000 can inject an electrolytic solution into the electrolyzer of the preparation device and energize the electrodes of the electrolyzer, enabling the electrolytic solution to undergo an oxidation-reduction reaction under the action of electric energy to generate a certain amount of hydrogen. By connecting the preparation device 200 and the gas output assembly 100 with pipelines and connecting the gas output assembly 100 to the collection device 400 through pipelines, the gas output assembly 100 can be used to collect the gas generated during the initial operation of the preparation device 200. The unqualified gas collected can be mixed with the relatively high-purity gas produced by the preparation device and then output to the collection device 400 for treatment and collection, ensuring the stable gas production output of the electrolytic hydrogen production system 1000.

[0031] In the present application, the supply pipeline 50 can be connected to the output end of the preparation device. The input end of the ejector 10 is connected by using the first branch pipe 53, and the input end of the storage container 30 is connected by using the second branch pipe 55. At this time, the gas produced by the preparation device can flow into the supply pipeline 50. By providing a two-way three-way valve at the diversion point of the supply pipeline 50 or providing flow control valve components such as on-off valves on the two branch pipes respectively, the flow control valve components can be used to regulate the gas flow direction in the supply pipeline 50 to the first branch pipe 53 or the second branch pipe 55, so that when the electrolytic hydrogen production system 1000 operates, it can first communicate with the second branch pipe 55 through the supply pipeline 50. The gas with purity not meeting the qualified standard generated in the initial stage of the operation of the electrolytic hydrogen production system 1000 can flow into the storage container 30 through the second branch pipe 55, realizing the storage, collection and utilization of the unqualified gas by the gas output component 100. When the electrolytic hydrogen production system 1000 can produce gas with purity meeting the qualified standard, the flow direction of the supply pipeline 50 can be switched by using the flow control valve components, so that the gas in the supply pipeline 50 flows to the first branch pipe 53 and flows into the collection device through the ejector 10. Among them, the ejector 10 is provided with a Venturi tube structure, so that a negative pressure environment can be formed in the suction cavity in the ejector 10 when there is fluid flow in the ejector 10. At this time, by connecting the output end of the storage container 30 to the suction end of the ejector 10 by using the mixing pipeline 31, the negative pressure environment formed in the ejector 10 can be used to drive the gas in the storage container 30 to be inhaled into the ejector 10 through the mixing pipeline 31, and the gas entering the suction end of the ejector 10 is mixed into the gas flowing in the ejector 10 and then flows out from the output end of the ejector 10.

[0032] Therefore, under the action of the ejector 10, the flowing gas can be used to drive the unqualified gas in the storage container 30 to flow into the ejector 10 for mixed flow input, and a small amount of unqualified gas can be mixed into a large amount of qualified gas flow for output, realizing the utilization of the gas generated in the initial stage of the operation of the electrolytic hydrogen production system 1000. At this time, by providing a mixing regulating valve 33 on the mixing pipeline 31, the mixing regulating valve 33 can be used to regulate the flow rate of the gas flowing in the mixing pipeline 31. Furthermore, the opening degree of the mixing regulating valve 33 can be regulated according to the required standard purity of the output gas, realizing the flow rate regulation of the unqualified gas flowing into the ejector 10 for mixed flow, which is beneficial to making the mixed flow gas flowing out from the output end of the ejector 10 meet the qualified purity standard, realizing the stable diversion of the gas produced by the preparation device by the gas output component 100, and at the same time realizing the collection and utilization of the gas produced in the initial stage of the operation of the electrolytic hydrogen production system 1000, effectively reducing the energy consumption waste of the electrolytic hydrogen production system 1000, ensuring the stable and reliable production of the electrolytic hydrogen production system 1000, and further improving the practicability and reliability of the gas output component 100.

[0033] By utilizing the structural characteristics of the ejector 10 to create a negative pressure environment when the air flow flows through the ejector 10 to suck the gas in the storage container 30, it is possible to avoid setting power devices such as pumps or motors in the storage container 30 to extract the gas in the storage container 30 for mixing and output with the qualified gas, effectively simplifying the overall structure of the gas output component 100, reducing the operating power consumption of the electrolytic hydrogen production system 1000, and further improving the practicability and reliability of the gas output component 100.

[0034] In the technical solution of an embodiment of the present application, by setting the storage container 30 and the ejector 10, in the initial stage of the operation of the electrolytic hydrogen production system 1000, the flow control valve member can be used to control the gas flow direction of the supply pipeline 50 to the first branch pipe 53, and the gas with a purity not meeting the qualified standard produced in the initial stage of the system operation is stored in the storage container 30 through the first branch pipe 53. When the electrolytic hydrogen production system 1000 stably produces gas with qualified purity, the flow control valve member is adjusted to control the gas flow direction of the supply pipeline 50 to the second branch pipe 55, so that the gas with qualified purity flows through the ejector 10 and is output to the collection device for collection and processing. At this time, under the structural action of the ejector 10, the gas with qualified purity flowing through the ejector 10 can form a certain negative pressure environment in the ejector 10. At this time, the ejector 10 can suck the gas with unqualified purity stored in the storage container 30 into the ejector 10 from the suction end of the ejector 10 through the mixing pipeline 31. By using the mixing control valve 33 to regulate the flow rate of the gas flow with unqualified purity, the purity of the gas mixed and output by the ejector 10 can meet the qualified standard requirements, realizing the storage and utilization of the gas with unqualified purity, ensuring the full output of the gas produced by the electrolytic hydrogen production system 1000, reducing the energy consumption waste of the electrolytic hydrogen production system 1000, and improving the practicability and reliability of the gas output component 100.

[0035] Refer to Figure 1 In an embodiment of the present application, the supply pipeline 50 is provided with a supply control valve 511 for regulating the gas flow rate in the supply pipeline 50.

[0036] In this embodiment, the gas output component 100 can be provided with a supply control valve 511 on the supply pipeline 50. By using the supply control valve 511, the flow rate of the air flow flowing in the supply pipeline 50 can be regulated, so that the electrolytic hydrogen production system can more quickly store the gas with unqualified purity produced in the initial stage of operation into the storage container 30. It is also beneficial to regulate the flow rate and air pressure of the gas with qualified purity flowing through the supply pipeline 50, so that the supply pipeline 50 can flow a larger flow rate of the gas with qualified purity into the ejector 10, ensuring that the gas mixed and output in the ejector 10 can better meet the qualified purity standard, and realizing the stable and reliable collection of the prepared gas by the electrolytic hydrogen production system 1000.

[0037] Refer to Figure 1, in an embodiment of the present application, the gas output assembly 100 further includes a detection mechanism, the detection mechanism includes a first detection mechanism 71 and a second detection mechanism 73, the first detection mechanism 71 is used to detect the flow rate and purity of the gas flowing through the supply pipeline 50; the second detection mechanism 73 is used to detect the flow rate and purity of the gas flowing through the mixing pipeline 31.

[0038] In this embodiment, by using the first detection mechanism 71 to detect the gas flow rate and purity flowing in the supply pipeline 50, the flow direction of the gas in the supply pipeline 50 can be correspondingly adjusted according to the purity detected by the first detection mechanism 71, so that when the purity of the gas flowing in the supply pipeline 50 detected by the first detection mechanism 71 does not meet the qualified standard, a feedback signal is sent, and the flow direction of the gas in the supply pipeline 50 is correspondingly adjusted to the first branch pipe 53, so that the gas with a purity not meeting the qualified standard can be stably stored in the storage container 30 through the first branch pipe 53; when the purity of the gas flowing in the supply pipeline 50 of the first detection mechanism 71 meets the qualified standard, a feedback signal can be sent, and the flow direction of the gas in the supply pipeline 50 is correspondingly adjusted to the second branch pipe 55, so that the gas with a qualified purity can stably flow through the ejector 10 for mixed flow output.

[0039] When using the ejector 10 to mix gases and ensure that the output gases meet the purity requirements, according to the formula: (F2 + F1) × C = F1 × C1 + F2 × C2, where F1 in the formula represents the gas flow rate flowing through the supply pipeline 50, F2 represents the gas flow rate flowing through the mixing pipeline 31, C1 represents the gas purity flowing through the supply pipeline 50, C2 represents the gas purity flowing through the mixing pipeline 31, and C represents the gas purity that meets the qualified standard for output. Furthermore, by using the first detection mechanism 71 and the second detection mechanism 73 to detect the values of C1 and C2, the gas flow rates F1 and F2 required for mixing to meet the output gas purity requirement C can be obtained. At this time, according to the flow rate detection of the supply pipeline 50 and the mixing pipeline 31 by the first detection mechanism 71 and the second detection mechanism 73, the valve opening of the supply regulating valve 511 and the valve of the mixing regulating valve 33 are correspondingly adjusted, so that the gas flow rate in the supply pipeline 50 can be regulated to the value F1 that meets the above formula, and the gas flow rate in the mixing pipeline 31 can be regulated to the value F2 that meets the above formula. Furthermore, it can better ensure that the ejector 10 mixes the two gas flows and outputs gases with a purity that meets the qualified requirements, ensuring the stable and reliable operation of the electrolytic hydrogen production system 1000, and further improving the practicability and reliability of the gas output assembly 100.

[0040] Refer to Figure 1 , in an embodiment of the present application, the first detection mechanism 71 includes a first flow meter 711 and a first analyzer 713, and the first flow meter 711 and the first analyzer 713 are respectively connected to the supply pipeline 50.

[0041] In this embodiment, the first detection mechanism 71 can install and set the first flowmeter 711 and the first analyzer 713 on the supply pipeline 50 respectively. The first flowmeter 711 can be an instrument for accurately measuring the fluid flow rate in the pipeline, and the first analyzer 713 can be an instrument for accurately measuring the fluid purity in the pipeline. Thus, the first flowmeter 711 can be used to detect the gas flow rate flowing in the supply pipeline 50, and the first analyzer can be used to detect the gas purity flowing in the supply pipeline 50, ensuring the stable and reliable detection of the flow rate and purity of the gas flowing through the supply pipeline 50 by the first detection mechanism 71. Among them, the first flowmeter 711 and the first analyzer 713 can be set on the pipe section of the supply pipeline 50 that has not been branched into the first branch pipe 53 and the second branch pipe 55, or the first flowmeter 711 and the first analyzer 713 can be set on both the first branch pipe 53 and the second branch pipe 55, so as to ensure that the first detection mechanism 71 stably detects the gas flow rate and purity flowing in the supply pipeline 50 during the operation of the electrolytic hydrogen production system 1000, and further improve the structural stability and reliability of the gas output component 100.

[0042] Refer to Figure 1 , in an embodiment of the present application, the first flowmeter 711 and the supply regulating valve 511 are arranged in sequence along the gas flow direction in the supply pipeline 50.

[0043] In this embodiment, the overall gas flow rate in the supply pipeline 50 is the same, but the gas pressure will decrease to a certain extent after the gas flows through the supply regulating valve 511. At this time, by arranging the first flowmeter 711 and the supply regulating valve 511 in sequence along the gas flow direction in the supply pipeline 50, the gas in the supply pipeline 50 can flow through the first flowmeter 711 first and then through the supply regulating valve 511, so that the first flowmeter 711 can detect the gas flow rate at a position where the gas pressure in the supply pipeline 50 is relatively high, which is beneficial to better improving the detection accuracy and reliability of the first flowmeter 711, so that the gas output by the gas output component 100 can better meet the purity qualification standard, and further improve the practicability and reliability of the gas output component 100.

[0044] Refer to Figure 1 and Figure 2 , in an embodiment of the present application, the second detection mechanism 73 includes a second flowmeter 731 and a second analyzer 733. The second flowmeter 731 is arranged in the mixing pipeline 31, and the second analyzer 733 is arranged in the mixing pipeline 31 or the storage container 30.

[0045] In this embodiment, the second flowmeter 731 can be an instrument for accurately measuring the fluid flow rate in a pipeline, and the second analyzer 733 can be an instrument for accurately measuring the purity of the fluid in the pipeline. The second detection mechanism 73 can install and connect the second flowmeter 731 to the mixing pipeline 31, so that the second flowmeter 731 can more conveniently and accurately measure the air flow rate flowing through the mixing pipeline 31. At this time, the second analyzer 733 can be installed and connected to the mixing pipeline 31, so that the second analyzer 733 can more conveniently and accurately measure the gas purity flowing through the mixing pipeline 31, and at the same time facilitate the independent disassembly and assembly of the storage container 30; or the second analyzer 733 can be directly installed on the storage container 30 to detect the gas purity in the storage container 30, which is beneficial to reducing the instrument layout on the mixing pipeline 31, facilitating the pipeline layout of the gas output assembly 100, and further improving the assembly convenience of the gas output assembly 100.

[0046] Refer to Figure 1 and Figure 2 , in an embodiment of the present application, the second flowmeter 731 and the mixing regulating valve 33 are arranged in sequence along the gas flow direction in the mixing pipeline 31.

[0047] In this embodiment, the overall air flow rate in the mixing pipeline 31 is consistent, but the air flow pressure will decrease to a certain extent after the air flow passes through the mixing regulating valve 33. At this time, by arranging the second flowmeter 731 and the mixing regulating valve 33 in sequence along the gas flow direction in the mixing pipeline 31, the air flow in the mixing pipeline 31 can first pass through the second flowmeter 731 and then through the mixing regulating valve 33, so that the second flowmeter 731 can detect the flow rate of the air flow at a position where the air flow pressure in the mixing pipeline 31 is relatively large, which is beneficial to better improving the detection accuracy and reliability of the second flowmeter 731, so that the gas output by the gas output assembly 100 can better meet the purity qualification standard, and further improves the practicability and reliability of the gas output assembly 100.

[0048] Refer to Figure 1 and Figure 2 , in an embodiment of the present application, the supply pipeline 50 includes a main pipeline 51, and one end of the main pipeline 51 is branched and connected to a first branch pipe 53 and a second branch pipe 55. The flow control valve components include a first on-off valve 531 and a second on-off valve 551. The first on-off valve 531 is arranged on the first branch pipe 53, and the second on-off valve 551 is arranged on the second branch pipe 55.

[0049] In this embodiment, the gas supply pipeline 50 can use a pipe tee joint to connect the main pipeline 51 with the first branch pipe 53 and the second branch pipe 55. A first on-off valve 531 is arranged on the first branch pipe 53, and a second on-off valve 551 is arranged on the second branch pipe 55. The valve of the first on-off valve 531 can be adjusted on the first branch pipe 53 or the valve of the second on-off valve 551 can be adjusted on the second branch pipe 55 to change the gas flow direction in the gas supply pipeline 50. Furthermore, the main pipeline 51 can direct the gas produced by the preparation device to the first branch pipe 53 or the second branch pipe 55 correspondingly, stably realizing the storage and utilization of the gas with unqualified purity by the gas output assembly 100 and the stable output of the gas with qualified purity, ensuring the stable and reliable operation of the electrolytic hydrogen production system 1000, and further improving the practicability and reliability of the gas output assembly 100.

[0050] Wherein, when a first detection mechanism 71 is arranged on the gas supply pipeline 50 to detect the flow rate and purity of the gas flowing through the gas supply pipeline 50, the first detection mechanism 71 can be correspondingly arranged on the main pipeline 51 of the gas supply pipeline 50 to ensure the stable detection of the gas flowing through the gas supply pipeline 50 by the first detection mechanism 71, which is beneficial to better improving the convenient layout of the pipeline of the gas supply pipeline 50.

[0051] Refer to Figure 3 , in an embodiment of the present application, the flow control valve member is a two-way three-way valve 57. The gas supply pipeline 50 is connected to the input end of the two-way three-way valve 57, and the first branch pipe 53 and the second branch pipe 55 are respectively connected to the two output ends of the two-way three-way valve 57.

[0052] It can be understood that the gas supply pipeline 50 can use a flow control valve member in the form of a two-way three-way valve 57 to shunt-connect the first branch pipe 53 and the second branch pipe 55, connect the gas supply pipeline 50 to the input end of the two-way three-way valve 57, and connect the first branch pipe 53 and the second branch pipe 55 to the two output ends of the two-way three-way valve 57 respectively. By adjusting the valve of the two-way three-way valve 57, the gas flow direction in the gas supply pipeline 50 can be changed. Furthermore, in the initial stage of system operation, the two-way three-way valve 57 can be adjusted to connect the gas supply pipeline 50 with the second branch pipe 55 and disconnect the gas supply pipeline 50 from the first branch pipe 53, so that the gas with unqualified purity generated in the initial stage of system operation can be stably stored in the storage container 30 through the second branch pipe 55; when it is detected that the gas produced by the system has qualified purity, the two-way three-way valve 57 can be adjusted to connect the gas supply pipeline 50 with the first branch pipe 53 and disconnect the gas supply pipeline from the second branch pipe 55, so that the gas with qualified purity can be stably flowed through the first branch pipe 53 and the ejector 10 into the collection device 400 of the system, ensuring the stable collection and utilization of the gas with unqualified purity by the gas output assembly 100, and further improving the structural stability and reliability of the gas output assembly 100.

[0053] In an embodiment of the present application, the storage container 30 is provided with a remaining amount detection device for detecting the gas volume in the storage container 30.

[0054] In this embodiment, by providing a remaining amount detection device on the storage container 30, the remaining amount detection device can be used to monitor the gas volume in the storage container 30 in real time. Furthermore, it is beneficial to issue a warning when the detected gas volume in the storage container 30 is about to reach the storage upper limit of the storage container 30, which can remind the user to replace the storage container 30 for storing the gas with unqualified purity. When the storage container 30 outputs gas to the injector 10 for mixed flow output, the remaining amount detection device can be used to correspondingly regulate the closing of the valve of the mixed flow regulating valve 33 when the gas volume in the storage container 30 decreases to a certain amount, avoiding the gas in the storage container 30 from being evacuated and having a certain probability of causing negative pressure damage to the storage container 30, which is beneficial to better ensuring the stable and reliable operation of the electrolytic hydrogen production system 1000 and further improving the practicability and reliability of the gas output component 100.

[0055] Refer to Figure 1 and Figure 2 In an embodiment of the present application, the gas output component 100 further includes a gas-liquid separation device 90, and the gas-liquid separation device 90 is arranged on the supply pipeline 50.

[0056] In this embodiment, the supply pipeline 50 can use one pipe section to connect the input end of the gas-liquid separation device 90 and the output end of the preparation device 200, and use another pipe section to connect the output end of the gas-liquid separation device 90 and the first branch pipe 53 and the second branch pipe 55. Furthermore, the gas produced by the preparation device 200 can first flow through the gas-liquid separation device 90 for gas-liquid separation treatment, and then the gas can stably flow through the supply pipeline 50 to the first branch pipe 53 or the second branch pipe 55, which is beneficial to fully removing the moisture carried in the gas produced by the preparation device under the action of the gas-liquid separation device 90, ensuring the stable control of the purity of the output gas by the gas output component 100, ensuring the stable operation of the electrolytic hydrogen production system 1000, and further improving the stability and reliability of the gas output component 100.

[0057] The present application also proposes an electrolytic hydrogen production system 1000, which includes a preparation device 200, a collection device 400, and a gas output component 100. The specific structure of the gas output component 100 refers to the above embodiment. Since the electrolytic hydrogen production system 1000 adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0058] Among them, the preparation device 200 may include an electrolytic cell. A certain amount of hydrogen can be electrolytically generated in the electrolytic cell using an electrolytic solution. By connecting the hydrogen discharge end of the electrolytic cell to the intake end of the gas output component 100 through a pipeline and connecting the outlet end of the gas output component 100 to the intake end of the collection device 400 through a pipeline. Exemplarily, the collection device 400 can be a hydrogen storage tank, a high-pressure hydrogen storage cylinder, a pipeline storage system, etc. Furthermore, the hydrogen produced by the preparation device 200 can be adjusted and processed by the gas output component 100 and then stored in the collection device 400, ensuring the stable operation of the electrolytic hydrogen production system 1000.

[0059] The above description is only an exemplary embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made under the technical concept of the present application using the content of the specification and drawings of the present application, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A gas output component, characterized in that, Comprising: Injector; Storage container, an output end of the storage container is connected with a mixing pipeline, the mixing pipeline is connected with an inhalation end of the injector, the mixing pipeline is provided with a mixing regulating valve for regulating a gas flow rate in the mixing pipeline; and Supply pipeline, the supply pipeline is provided with a first branch pipe and a second branch pipe, the first branch pipe is connected with an input end of the injector, the second branch pipe is connected with an input end of the storage container, the supply pipeline is provided with a flow control valve member for controlling a gas to flow to the first branch pipe or the second branch pipe.

2. The gas output assembly according to claim 1, wherein, The supply pipeline is provided with a supply regulating valve for regulating a gas flow rate in the supply pipeline.

3. The gas output component according to claim 1, wherein, The gas output assembly further includes a detection mechanism, the detection mechanism includes: A first detection mechanism for detecting a flow rate and purity of a gas flowing through the supply pipeline; and A second detection mechanism for detecting a flow rate and purity of a gas flowing through the mixing pipeline.

4. The gas output component according to claim 3, wherein, The first detection mechanism includes a first flowmeter and a first analyzer, the first flowmeter and the first analyzer are respectively connected to the supply pipeline.

5. The gas output assembly according to claim 4, wherein, The supply pipeline is provided with a supply regulating valve for regulating a gas flow rate in the supply pipeline, the first flowmeter and the supply regulating valve are sequentially arranged along a gas flow direction in the supply pipeline.

6. The gas output assembly according to claim 3, wherein, The second detection mechanism includes a second flowmeter and a second analyzer, the second flowmeter is arranged in the mixing pipeline, the second analyzer is arranged in the mixing pipeline or the storage container.

7. The gas output component according to claim 6, wherein The second flowmeter and the mixing regulating valve are sequentially arranged along a gas flow direction in the mixing pipeline.

8. The gas output assembly according to any one of claims 1 to 7, characterized in that The supply pipeline includes a main pipeline, one end of the main pipeline is divergently connected with the first branch pipe and the second branch pipe; The flow control valve member includes a first switching valve and a second switching valve, the first switching valve is arranged on the first branch pipe, the second switching valve is arranged on the second branch pipe.

9. The gas output assembly according to any one of claims 1 to 7, characterized in that, The flow control valve member is a two-position three-way valve, the supply pipeline is connected to an input end of the two-position three-way valve, the first branch pipe and the second branch pipe are respectively connected to two output ends of the two-position three-way valve.

10. The gas output component according to any one of claims 1 to 7, characterized in that, The storage container is provided with a remaining amount detection device for detecting a gas capacity in the storage container.

11. The gas output component according to any one of claims 1 to 7, characterized in that, The gas output assembly further includes a gas-liquid separation device arranged in the supply pipeline.

12. An electrolytic hydrogen production system, characterized in that, The electrolytic hydrogen production system includes a preparation device, a collection device and a gas output assembly, the gas output assembly is the gas output assembly according to any one of claims 1 to 11, and the gas output assembly is connected to the preparation device and the collection device through pipelines.

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