Hydrogen flow measuring device

Abstract

The invention relates to the technical field of hydrogenation equipment, and provides a hydrogen flow measuring device which comprises a gas transmission mechanism and a measuring mechanism. The gas transmission mechanism comprises an output pipeline, a detection pipeline and a hydrogenation pipeline which are communicated in sequence, the output pipeline is inserted into a hydrogen storage tank, and a connecting module is arranged between the detection pipeline and the hydrogenation pipeline; the measuring mechanism comprises a temperature measuring assembly, a dynamic measuring assembly and a detection control assembly, the temperature measuring assembly is clamped in each connecting module, and the dynamic measuring assembly is slidably arranged in the output pipeline; the detection control assembly comprises a deflection structure and a control valve used for controlling the opening and closing states of the detection pipeline, the deflection structure is rotationally arranged on the detection pipeline, and a deflection sensor in communication connection with the control valve is arranged on the deflection structure. The device solves the problem of detection errors easily caused by gas backflow, and has the advantages of simple structure and few detection errors.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogenation equipment, and in particular to a hydrogen flow measurement device. Background Art

[0002] Hydrogen refueling stations are important infrastructure for the industrialization and commercialization of hydrogen fuel cells. Hydrogen fuel cell vehicles are generally refueled with hydrogen through hydrogen refueling machines. During the hydrogen refueling process, a measuring device is required to detect the flow rate and flow rate of hydrogen output by the hydrogen refueling machine and control the amount of hydrogen refueling at all times.

[0003] In the prior art, for example, a Chinese patent with the announcement number CN115962808A discloses a flow meter, including a pipe body, a support platform, a flange and a throttling element. The pipe body includes a pipe main body and a pressure taking part, wherein a first channel is opened in the axial direction inside the pipe main body, and a pressure taking part is arranged on the outer peripheral wall of the pipe main body, and the pressure taking part extends in the radial direction of the pipe body toward one end away from the pipe body; two second channels are opened in the radial direction of the pipe main body inside the pressure taking part, and the two second channels are arranged in the axial direction of the pipe body, and one end of the second channel is connected to the first channel, and the flange is installed at the axial ends of the pipe body; the throttling element is arranged in the first channel of the pipe main body, and the throttling element is located between the two second channels in the axial direction of the first channel.

[0004] However, when the above-mentioned flow meter is working, the gas passes through the inside of the device. During the process, gas reflux may occur when the gas collides with an obstruction in the front direction. The refluxed gas may interfere with the forward-flowing gas, which may easily cause the device to detect the gas flow rate incorrectly, resulting in errors in the flow measurement of the hydrogen filling machine. Summary of the invention

[0005] Based on this, in order to solve the problem that gas reflux easily causes detection errors, the present invention provides a hydrogen flow measurement device, and its specific technical solution is as follows: A hydrogen flow measurement device comprises a gas transmission mechanism and a measuring mechanism; the gas transmission mechanism comprises an output pipeline, a detection pipeline and a hydrogenation pipeline which are connected in sequence, the output pipeline is inserted into a hydrogen storage tank, and a connecting module is arranged between the detection pipeline and the hydrogenation pipeline; the measuring mechanism comprises a temperature measurement component, a dynamic measurement component and a detection control component, each of the connection modules is clamped with the temperature measurement component, the dynamic measurement component is slidably arranged in the output pipeline, the detection control component comprises a deflection structure and a control valve for controlling the opening and closing state of the detection pipeline, the deflection structure is rotatably arranged on the detection pipeline and a deflection sensor which is communicatively connected to the control valve is arranged on the deflection structure.

[0006] The above-mentioned hydrogen flow measurement device is convenient for discharging the hydrogen stored in the hydrogen storage tank by providing an output pipeline, so that the hydrogen can flow between the various pipelines on the gas transmission mechanism; by providing a connection module, the connection state between the various pipelines is guaranteed, so that the gas transmission mechanism can form a complete gas transmission system, which is convenient for flow measurement operations; through the sliding of the dynamic measurement component, it can reciprocate the position inside the output pipeline to achieve flow measurement at various positions in the output pipeline, avoiding measurement errors caused by inconsistent flow at different positions in the output pipeline; by providing a deflection structure, the hydrogen airflow formed in the detection pipeline has kinetic energy, and the deflection structure will rotate a certain angle under the driving action of the airflow, so as to calculate the flow rate using the deflection angle and adjust the control valve in real time according to the flow rate.

[0007] Furthermore, the output pipeline includes a connecting pipe and a plurality of plug-in tubes, a flow recorder is provided at the connection between each of the plug-in tubes and the hydrogen storage tank, the plurality of plug-in tubes are respectively connected to the connecting pipe through the connecting module, an air outlet is provided on the connecting pipe, and one end of the detection pipeline is fixed to the air outlet through a flange.

[0008] Furthermore, a mounting groove is provided in the connection module; the temperature measurement component includes a temperature sensing structure and a mounting ring inserted in the mounting groove, the mounting ring is provided with a plurality of positioning holes and a plurality of flow gaps, the positioning holes and the flow gaps are spaced apart, and the temperature sensing structure is embedded in the positioning holes.

[0009] Furthermore, a cavity is formed inside the temperature sensing structure, a heating wire is installed in the cavity, a temperature sensor for detecting the temperature of the heating wire is provided on the mounting ring, and the temperature sensor is connected to the heating wire.

[0010] Furthermore, the dynamic measurement component includes a main body, a deformation sleeve, a pressure-sensing structure and three sliding parts respectively slidably connected to the inner wall of the connecting tube, a connecting head and a locking part are sequentially sleeved on the outer wall of one end of the main body, the deformation sleeve cover is arranged on the other end of the main body, the pressure-sensing structure is installed in the deformation sleeve, a sliding rod is arranged between the deformation sleeve and the connecting head, a disassembly and assembly part is slidably assembled on the sliding rod, one end of the sliding part is rotatably installed on the disassembly and assembly part, and the other end of the sliding part is detachably connected to the locking part.

[0011] Furthermore, the sliding member includes a buffer block, a plurality of connecting strips and a sliding track slidably connected to the inner wall of the connecting tube, one end of the buffer block is rotatably connected to the sliding track, the other end of the buffer block is clamped on the disassembly component and can rotate relative to the disassembly component, a buffer spring is provided on the buffer block, a plurality of connecting strips are respectively rotatably connected between the sliding track and the disassembly component, the disassembly component is threadedly fixed with a rotating shaft, the connecting strip is movably sleeved on the rotating shaft, and a flow space for gas circulation is formed between the sliding track and the main body.

[0012] Furthermore, the pressure-sensing structure includes a pressure-sensitive plate, a support block, a base, a guide rod, an elastic block and a pressure sensor, the support block is fixed in the deformation sleeve, one end of the pressure sensor is installed on the support block, the other end of the pressure sensor is connected to the base, one end of the guide rod is slidably inserted in the base, the other end of the guide rod is fixedly connected to the pressure-sensitive plate, and the elastic block abuts between the pressure-sensitive plate and the base.

[0013] Furthermore, the detection control component also includes an angle deflection member, an indicator member and a fixed seat fixed on the outer wall of the detection pipe, the angle deflection member is located above the fixed seat and is sleeved on the deflection structure, an arc groove is opened on the angle deflection member, the indicator member is threadedly fixed on the fixed seat, a gap portion is formed at the circumferential edge of the indicator member, the gap portion is slidably arranged on the arc groove, and a plurality of angle values ​​are engraved at intervals at the position of the angle deflection member corresponding to the arc groove.

[0014] Furthermore, the deflection structure includes a deflection shaft and a choke fan, the deflection shaft is arranged through the detection pipe and can rotate relative to the detection pipe, the choke fan is detachably fixed on the deflection shaft and the choke fan is arranged inside the detection pipe, and the deflection sensor is used to measure the deflection angle of the choke fan relative to an initial position or measure the force driving the choke fan to rotate.

[0015] Furthermore, a flow display component is provided on the gas outlet end of the hydrogenation pipeline, and the flow display component includes a display module, an opening and closing valve, and an gas outlet pipeline connected to the hydrogenation pipeline, the opening and closing valve is arranged in the gas outlet pipeline and is communicatively connected to the display module, the display module is installed on the outer wall of the gas outlet pipeline, and the display module is provided with a numerical display for displaying the flow of gas passing through the opening and closing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 It is one of the structural schematic diagrams of the hydrogen flow measurement device according to one embodiment of the present invention; Figure 2 This is a second structural schematic diagram of a hydrogen flow measurement device according to an embodiment of the present invention; Figure 3 yes Figure 2 A is a schematic diagram of the partially enlarged structure of the middle part; Figure 4 is a schematic cross-sectional structural diagram of a temperature measurement assembly of a hydrogen flow measurement device according to an embodiment of the present invention; Figure 5 This is one of the structural schematic diagrams of the dynamic measurement component of the hydrogen flow measurement device according to one embodiment of the present invention; Figure 6 This is a second structural schematic diagram of a dynamic measurement component of a hydrogen flow measurement device according to an embodiment of the present invention; Figure 7 is a structural schematic diagram of a pressure-sensing structure of a hydrogen flow measurement device according to an embodiment of the present invention; Figure 8 yes Figure 7 A schematic diagram of the partially enlarged structure of B in the middle; Fig. 9 This is one of the partial structural schematic diagrams of the detection and control component of the hydrogen flow measurement device according to one embodiment of the present invention; Fig.10 This is a second partial structural schematic diagram of a detection and control component of a hydrogen flow measurement device according to an embodiment of the present invention; Fig.11 It is a structural schematic diagram of a flow display component of a hydrogen flow measurement device according to an embodiment of the present invention.

[0018] Description of reference numerals: 1. Output pipeline; 11. Connecting pipe; 12. Plug-in pipe; 13. Flow recorder; 2. Detection pipeline; 3. Hydrogenation pipeline; 4. Hydrogen storage tank; 5. Connection module; 51. Installation groove; 6. Temperature measurement component; 61. Temperature sensing structure; 611. Heating wire; 612. Temperature sensor; 62. Mounting ring; 63. Positioning hole; 64. Flow gap; 7. Dynamic measurement component; 71. Main body; 72. Deformation sleeve; 73. Pressure sensing structure; 731. Pressure sensing plate; 732. Support block; 733. Base; 734. Guide rod; 735. Elastic block; 736. Pressure sensor; 74. Sliding part; 741. Buffer block; 7411. Buffer spring; 742. Connecting strip; 743. Sliding track; 7431. Anti-skid flange; 75. Sliding rod; 76. Disassembly and assembly parts; 77. Connecting head; 78. Locking part; 79. Flow space; 8. Detection and control component; 81. Deflection structure; 811. Deflection shaft; 812. choke fan; 82. Control valve; 83. Angle deflection part; 831. Arc groove; 84. Indicator; 85. Fixed seat; 9. Flow display component; 91. Display module; 911. Numerical display; 92. Opening and closing valve; 93. Exhaust pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0023] like Figure 1 and Figure 2As shown, a hydrogen flow measurement device in one embodiment of the present invention includes a gas transmission mechanism and a measuring mechanism; the gas transmission mechanism includes an output pipeline 1, a detection pipeline 2 and a hydrogenation pipeline 3 that are connected in sequence, the output pipeline 1 is inserted into the hydrogen storage tank 4, and a connecting module 5 is arranged between the detection pipeline 2 and the hydrogenation pipeline 3; the measuring mechanism includes a temperature measurement component 6, a dynamic measurement component 7 and a detection control component 8, each connection module 5 is clamped with a temperature measurement component 6, the dynamic measurement component 7 is slidably arranged in the output pipeline 1, the detection control component 8 includes a deflection structure 81 and a control valve 82 for controlling the opening and closing state of the detection pipeline 2, the deflection structure 81 is rotatably arranged on the detection pipeline 2 and a deflection sensor that is communicatively connected to the control valve 82 is arranged on the deflection structure 81.

[0024] The above-mentioned hydrogen flow measurement device is convenient for discharging the hydrogen stored in the hydrogen storage tank 4 by providing an output pipeline 1, so that the hydrogen can flow between the various pipelines on the gas transmission mechanism; by providing a connection module 5, the connection state between the various pipelines is guaranteed, so that the gas transmission mechanism can form a complete gas transmission system, which is convenient for flow measurement operations; through the sliding of the dynamic measurement component 7, it can reciprocate the position inside the output pipeline 1 to achieve flow measurement at various positions in the output pipeline 1, avoiding measurement errors caused by inconsistent flow at different positions in the output pipeline 1; by providing a deflection structure 81, the hydrogen gas flow formed in the detection pipeline 2 has kinetic energy, and the deflection structure 81 will rotate a certain angle under the driving action of the gas flow, so that the flow rate is calculated using the deflection angle and the control valve 82 is adjusted in real time according to the flow rate.

[0025] Preferably, the deflection sensor is an angle sensor.

[0026] like Figure 1 and Figure 2 As shown, in one embodiment, the output pipeline 1 includes a connecting pipe 11 and a plurality of plug-in pipes 12, and a flow recorder 13 is provided at the connection between each plug-in pipe 12 and the hydrogen storage tank 4. The plurality of plug-in pipes 12 are connected to the connecting pipe 11 through the connecting module 5, respectively. The connecting pipe 11 is provided with an air outlet, and one end of the detection pipeline 2 is fixed at the air outlet through a flange. In this way, by providing the flow recorder 13, the output flow rate of hydrogen when it is output from the hydrogen storage tank 4 can be accurately measured and recorded in real time, which is convenient for comparing and referencing the subsequent flow rate of hydrogen when it circulates in each pipeline, reducing measurement errors, and meeting the requirements of various measurement scenarios; by fixing the detection pipeline 2 with a flange, the flange makes the disassembly and assembly of the detection pipeline 2 easier and the connection effect better due to its corrosion resistance, strong sealing, wide range of application, convenient installation process and reusable characteristics.

[0027] Specifically, there are multiple hydrogen storage tanks 4, and each hydrogen storage tank 4 is plugged with at least one plug-in tube 12. Each hydrogen storage tank 4 is separated by a certain distance, so that each plug-in tube 12 and the hydrogen storage tank 4 form an output segment, and each output segment converges to the connecting pipe 11.

[0028] like Figure 2-Figure 4 As shown, in one embodiment, a mounting groove 51 is provided in the connection module 5; the temperature measurement assembly 6 includes a temperature sensing structure 61 and a mounting ring 62 inserted in the mounting groove 51, and a plurality of positioning holes 63 and a plurality of flow gaps 64 are provided on the mounting ring 62, the positioning holes 63 and the flow gaps 64 are spaced apart, and the temperature sensing structure 61 is embedded in the positioning holes 63. By providing the mounting groove 51, the mounting ring 62 can be reciprocated and disassembled, which facilitates the maintenance and repair of the temperature sensing structure 61 on the mounting ring 62; by providing the flow gap 64, a space position is provided for the circulation of hydrogen.

[0029] Specifically, the mounting ring 62 and the temperature sensing structure 61 are both made of stainless steel, so hydrogen embrittlement is not likely to occur even if they are in an environment filled with hydrogen for a long time.

[0030] like Figure 4 As shown, in one embodiment, a cavity is formed inside the temperature sensing structure 61, a heating wire 611 is installed in the cavity, a temperature sensor 612 for detecting the temperature of the heating wire 611 is provided on the mounting ring 62, and the temperature sensor 612 is connected to the heating wire 611. In the actual measurement process, a constant current is connected to the heating wire 611, the heating wire 611 generates heat and transfers the heat to the temperature sensing structure 61; since the resistance of the heating wire 611 is constant, the heat generated by the heating wire 611 is also constant, and when hydrogen flows, an airflow is generated to blow over the surface of the temperature sensing structure 61, taking away part of the heat on the temperature sensing structure 61, so that the surface temperature of the temperature sensing structure 61 is reduced, and the temperature sensor 612 monitors the temperature on the temperature sensing structure 61 in real time. Specifically, when there is no hydrogen flow in the connecting module 5, the temperature of the heating wire 611 is constant at 100°C. When the hydrogen flow rate is increased to 1 m / s, the temperature of the heating wire 611 is reduced to 98°C. As the hydrogen flow rate increases, the temperature of the heating wire 611 decreases accordingly. Therefore, the hydrogen flow rate in the connecting module 5 at that location can be calculated based on the temperature detected by the temperature sensor 612, and the control measurement flow rate can be obtained through the flow rate. The measurement of the hydrogen flow in multiple connecting modules 5 is completed, and the staff can use multiple measurement values ​​for comparison, which avoids measurement errors to a certain extent.

[0031] Preferably, the temperature sensing sensor 612 is a temperature sensor.

[0032] like Figure 5 and Figure 6As shown, in one embodiment, the dynamic measurement component 7 includes a main body 71, a deformation sleeve 72, a pressure-sensing structure 73 and three sliding members 74 respectively slidably connected to the inner wall of the connecting tube 11. A connecting head 77 and a locking member 78 are sequentially sleeved on the outer wall of one end of the main body 71. The deformation sleeve 72 is covered on the other end of the main body 71. The pressure-sensing structure 73 is installed in the deformation sleeve 72. A sliding rod 75 is provided between the deformation sleeve 72 and the connecting head 77. A disassembly and assembly member 76 is slidably assembled on the sliding rod 75. One end of the sliding member 74 is rotatably installed on the disassembly and assembly member 76, and the other end of the sliding member 74 is detachably connected to the locking member 78. In this way, by providing three sliding members 74, the three sliding members 74 utilize the stability of the inscribed triangle in the cylinder to enhance the bearing capacity of the dynamic measuring component 7, thereby ensuring that the dynamic measuring component 7 can still be stable in the connecting tube 11 when subjected to heavy pressure and various external forces, thereby improving the stability of the dynamic measuring component 7 during operation and movement, and increasing the service life of the dynamic measuring component 7; by providing a deformable sleeve 72, the main function is to protect the pressure-sensing structure 73 from damage. At the same time, the deformable sleeve 72 itself has the ability to deform, and can transfer the deformation caused by itself being compressed by air pressure to the pressure-sensing structure 73, so that the pressure-sensing structure 73 can also be impacted, thereby enabling the pressure-sensing structure 73 to smoothly sense the hydrogen pressure in the connecting tube 11.

[0033] like Figure 6 As shown, in one embodiment, the sliding member 74 includes a buffer block 741, a plurality of connecting strips 742 and a sliding track 743 slidably connected to the inner wall of the connecting pipe 11, one end of the buffer block 741 is rotatably connected to the sliding track 743, the other end of the buffer block 741 is clamped on the disassembly component 76 and can rotate relative to the disassembly component 76, a buffer spring 7411 is provided on the buffer block 741, a plurality of connecting strips 742 are respectively rotatably connected between the sliding track 743 and the disassembly component 76, the disassembly component 76 is threadedly fixed with a rotating shaft, the connecting strip 742 is movably sleeved on the rotating shaft, and a flow space 79 for gas circulation is formed between the sliding track 743 and the main body 71. In this way, by providing a buffer block 741, the impact force from the inner wall of the connecting pipe 11 is absorbed and dispersed, thereby significantly improving the shock absorption performance of the dynamic measurement component 7, making the dynamic measurement component 7 more stable during operation and movement; by providing an overflow space 79, a spatial position is provided for the circulation of hydrogen, thereby preventing a large local impact on the flow of hydrogen in the connecting pipe 11.

[0034] like Figure 6 As shown, further, a plurality of anti-skid flanges 7431 are provided at intervals on the sliding track 743. The anti-skid flanges 7431 increase friction and provide additional support, thereby enhancing the stability of the connection between the sliding track 743 and the inner wall of the connecting pipe 11, thereby ensuring the stable operation of the dynamic measurement component 7.

[0035] like Figure 7 and Figure 8 As shown, in one embodiment, the pressure sensing structure 73 includes a pressure sensing plate 731, a support block 732, a base 733, a guide rod 734, an elastic block 735 and a pressure sensor 736. The support block 732 is fixed in the deformation sleeve 72. One end of the pressure sensor 736 is installed on the support block 732, and the other end of the pressure sensor 736 is connected to the base 733. One end of the guide rod 734 is slidably inserted in the base 733, and the other end of the guide rod 734 is fixedly connected to the pressure sensing plate 731. The elastic block 735 abuts between the pressure sensing plate 731 and the base 733. The pressure sensing plate 731 will retreat when impacted by the airflow. The pressure sensing sensor 736 can detect the pressure transferred from the pressure sensing plate 731 to the guide rod 734, thereby detecting the hydrogen gas flow pressure. Then, the staff can calculate the hydrogen flow rate in the connecting pipe 11 according to the actual needs by using the calculation formula of the gas pressure flow rate.

[0036] Preferably, the pressure sensor 736 is a pressure sensor.

[0037] like Fig. 9 and Fig.10 As shown, in one embodiment, the detection control assembly 8 also includes an angle deflection member 83, an indicator member 84, and a fixed seat 85 fixed on the outer wall of the detection pipeline 2, the angle deflection member 83 is located above the fixed seat 85 and is sleeved on the deflection structure 81, an arc groove 831 is provided on the angle deflection member 83, the indicator member 84 is threadedly fixed on the fixed seat 85, a gap portion is formed at the circumferential edge of the indicator member 84, the gap portion is slidably arranged on the arc groove 831, and a plurality of angle values ​​are engraved at intervals at the position of the angle deflection member 83 corresponding to the arc groove 831. When hydrogen is flowing in the detection pipeline 2, the airflow formed by the flow of hydrogen has kinetic energy, and the deflection structure 81 rotates a certain angle in the flow direction under the driving action of the airflow, thereby driving the rotation of the angle deflection member 83, and the staff can calculate the flow rate of the hydrogen airflow by real-time monitoring of the angle value, thereby obtaining the corresponding detection hydrogen flow.

[0038] like Fig.10As shown, in one embodiment, the deflection structure 81 includes a deflection shaft 811 and a choke fan 812, the deflection shaft 811 is arranged through the detection pipe 2 and can rotate relative to the detection pipe 2, the choke fan 812 is detachably fixed on the deflection shaft 811 and the choke fan 812 is arranged inside the detection pipe 2, and the deflection sensor is used to measure the deflection angle of the choke fan 812 relative to the initial position or measure the force driving the choke fan 812 to rotate. Under the driving action of the hydrogen gas flow, the choke fan 812 rotates a certain angle along the deflection shaft 811 in the direction of the gas flow, and there is a one-to-one correspondence between the deflection angle of the choke fan 812 relative to the initial position and the flow velocity of the gas flow, and the deflection angle of the choke fan 812 is reflected in the angle value at the position of the arc groove 831.

[0039] Specifically, an anti-wear layer is provided on the outer walls of the deflection shaft 811 and the choke fan 812 .

[0040] like Figure 1 , Figure 2 and Fig.11 As shown, in one embodiment, a flow display assembly 9 is provided on the outlet end of the hydrogenation pipeline 3, and the flow display assembly 9 includes a display module 91, an on-off valve 92, and an outlet pipeline 93 connected to the hydrogenation pipeline 3. The on-off valve 92 is arranged in the outlet pipeline 93 and is in communication connection with the display module 91. The display module 91 is installed on the outer wall of the outlet pipeline 93. The display module 91 is provided with a numerical display 911 for displaying the flow of gas passing through the on-off valve 92. The display module 91 is provided to control the operating state of the on-off valve 92, thereby adjusting the hydrogen flow in the outlet pipeline 93, strictly controlling the amount of hydrogenation, and avoiding waste; the numerical display 911 is provided to display the hydrogen flow in the outlet pipeline 93 at all times, so that the staff can obtain the actual flow when hydrogen is finally added.

[0041] In the above embodiment, the staff can integrate and compare the hydrogen flow rate in the connecting pipe 11 and the hydrogen flow rate in the detection pipeline 2 to obtain the average flow rate and reduce the measurement error. At the same time, the provision of multiple connection modules 5 enables the staff to always grasp the hydrogen flow rate at various positions in the pipeline and realize flow control of the entire hydrogenation process. When an accident occurs, it is helpful to accurately find the corresponding fault location.

[0042] Finally, the staff can verify the average flow rate obtained from the above-mentioned hydrogen flow rate detection by comparing the actual flow rate when adding hydrogen and the outlet flow rate of the hydrogen storage tank 4.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A hydrogen flow measurement device, characterized in that: include: A gas delivery mechanism, the gas delivery mechanism comprising an output pipeline, a detection pipeline and a hydrogenation pipeline connected in sequence, the output pipeline is inserted on the hydrogen storage tank, and a connection module is provided between the detection pipeline and the hydrogenation pipeline; The measuring mechanism includes a temperature measuring component, a dynamic measuring component and a detection control component. The temperature measuring component is clamped in each of the connecting modules. The dynamic measuring component is slidably arranged in the output pipe. The detection control component includes a deflection structure and a control valve for controlling the opening and closing state of the detection pipe. The deflection structure is rotatably arranged on the detection pipe and a deflection sensor is provided on the deflection structure and is communicatively connected to the control valve.

2. The hydrogen flow measurement device according to claim 1, characterized in that: The output pipeline includes a connecting pipe and multiple plug-in tubes. A flow recorder is provided at the connection between each plug-in tube and the hydrogen storage tank. The multiple plug-in tubes are connected to the connecting pipe through the connecting modules respectively. The connecting pipe is provided with an air outlet, and one end of the detection pipeline is fixed to the air outlet through a flange.

3. The hydrogen flow measurement device according to claim 2, characterized in that: A mounting groove is provided in the connection module; the temperature measurement component includes a temperature sensing structure and a mounting ring inserted in the mounting groove, the mounting ring is provided with a plurality of positioning holes and a plurality of flow gaps, the positioning holes and the flow gaps are spaced apart, and the temperature sensing structure is embedded in the positioning holes.

4. The hydrogen flow measurement device according to claim 3, characterized in that: A cavity is formed inside the temperature sensing structure, a heating wire is installed in the cavity, a temperature sensor for detecting the temperature of the heating wire is provided on the mounting ring, and the temperature sensor is connected to the heating wire.

5. The hydrogen flow measurement device according to claim 1, characterized in that: The dynamic measurement component includes a main body, a deformation sleeve, a pressure-sensing structure and three sliding parts respectively slidably connected to the inner wall of the connecting tube. A connecting head and a locking part are sequentially sleeved on the outer wall of one end of the main body. The deformation sleeve cover is arranged on the other end of the main body. The pressure-sensing structure is installed in the deformation sleeve. A sliding rod is arranged between the deformation sleeve and the connecting head. A disassembly and assembly part is slidably assembled on the sliding rod. One end of the sliding part is rotatably installed on the disassembly and assembly part, and the other end of the sliding part is detachably connected to the locking part.

6. The hydrogen flow measurement device according to claim 5, characterized in that: The sliding member includes a buffer block, a plurality of connecting strips and a sliding track slidably connected to the inner wall of the connecting pipe, one end of the buffer block is rotatably connected to the sliding track, the other end of the buffer block is clamped on the disassembly component and can rotate relative to the disassembly component, a buffer spring is provided on the buffer block, a plurality of connecting strips are respectively rotatably connected between the sliding track and the disassembly component, a rotating shaft is threadedly fixed to the disassembly component, the connecting strip is movably sleeved on the rotating shaft, and a flow space for gas circulation is formed between the sliding track and the main body.

7. The hydrogen flow measurement device according to claim 6, characterized in that: The pressure-sensing structure includes a pressure-sensing plate, a support block, a base, a guide rod, an elastic block and a pressure sensor. The support block is fixed in the deformation sleeve, one end of the pressure sensor is installed on the support block, the other end of the pressure sensor is connected to the base, one end of the guide rod is slidably inserted in the base, the other end of the guide rod is fixedly connected to the pressure-sensing plate, and the elastic block abuts between the pressure-sensing plate and the base.

8. The hydrogen flow measurement device according to claim 1, characterized in that: The detection control component also includes an angle deflection member, an indicator member and a fixed seat fixed on the outer wall of the detection pipe, the angle deflection member is located above the fixed seat and is sleeved on the deflection structure, an arc groove is opened on the angle deflection member, the indicator member is threadedly fixed on the fixed seat, a gap portion is formed at the circumferential edge of the indicator member, the gap portion is slidably arranged on the arc groove, and a plurality of angle values ​​are engraved at intervals at the position of the angle deflection member corresponding to the arc groove.

9. The hydrogen flow measurement device according to claim 8, characterized in that: The deflection structure includes a deflection shaft and a choke fan. The deflection shaft is arranged through the detection pipe and can rotate relative to the detection pipe. The choke fan is detachably fixed on the deflection shaft and is arranged inside the detection pipe. The deflection sensor is used to measure the deflection angle of the choke fan relative to an initial position or to measure the force driving the choke fan to rotate.

10. The hydrogen flow measurement device according to claim 1, characterized in that: A flow display component is provided on the gas outlet end of the hydrogenation pipeline, and the flow display component includes a display module, an opening and closing valve, and a gas outlet pipeline connected to the hydrogenation pipeline. The opening and closing valve is arranged in the gas outlet pipeline and is communicatively connected to the display module. The display module is installed on the outer wall of the gas outlet pipeline, and the display module is provided with a numerical display for displaying the flow of gas passing through the opening and closing valve.

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