Hydrogen leak detection system, method, computer device, and computer readable storage medium

Abstract

The application provides a hydrogen leakage detection system, method, computer device and readable storage medium, and belongs to the field of hydrogen leakage detection. The hydrogen leakage detection system comprises: a hydrogen-sensitive color-changing adhesive tape, which is attached to a hydrogen pipeline connection position and is used for sensing hydrogen leakage at the hydrogen pipeline connection position; a hydrogen-sensitive color-changing sensing mechanism, which is used for monitoring the hydrogen-sensitive color-changing adhesive tape and converting a color signal collected into an electrical signal; a compact optical channel, which is used for increasing an effective monitoring area of the hydrogen-sensitive color-changing sensing mechanism; a distance judgment module, which is used for judging whether a distance between the hydrogen-sensitive color-changing adhesive tape and the hydrogen-sensitive color-changing sensing mechanism is less than a preset distance value; and a control module, which is used for judging whether hydrogen leakage occurs according to the electrical signal output by the hydrogen-sensitive color-changing sensing mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogen leakage detection, in particular to a hydrogen leakage detection system, a hydrogen leakage detection method, a computer device and a computer readable storage medium. BACKGROUND

[0002] Hydrogen energy has multiple advantages such as wide sources, high energy density, zero emissions, and wide applications, and has important significance in ensuring energy supply safety, improving atmospheric environmental quality, and promoting energy structure upgrading.

[0003] The prior art realizes monitoring of hydrogen leakage through manual inspection or installation of a hydrogen leakage detection alarm instrument, but for scenes such as narrow spaces such as hydrogen transmission pipelines, hydrogen-doped natural gas pipelines, and hydrogen storage wells, manual inspection is not easy to carry out or difficult to find, and it is not easy to install a hydrogen leakage detection alarm instrument, and it is difficult to detect and locate hydrogen leakage in a timely manner. SUMMARY

[0004] In order to solve the above technical defects, the present application provides a hydrogen leakage detection system, method, computer device and readable storage medium, which is characterized by the following technical solutions.

[0005] The first aspect of the present application provides a hydrogen leakage detection system, comprising:

[0006] A hydrogen-sensitive color-changing tape is attached to the hydrogen pipeline connection for sensing hydrogen leakage at the hydrogen pipeline connection, and changes color in response to the concentration of the leaked hydrogen to display a color signal.

[0007] A hydrogen-sensitive color-changing sensing mechanism is used to monitor the hydrogen-sensitive color-changing tape, collect the color signal of the hydrogen-sensitive color-changing tape, and convert the collected color signal into an electrical signal.

[0008] A compact optical channel is used to increase the effective monitoring area of the hydrogen-sensitive color-changing sensing mechanism.

[0009] A distance determination module is used to determine whether the distance between the hydrogen-sensitive color-changing tape and the hydrogen-sensitive color-changing sensing mechanism is less than a predetermined distance value.

[0010] A control module is used to determine whether hydrogen leakage has occurred based on the electrical signal output by the hydrogen-sensitive color-changing sensing mechanism.

[0011] The hydrogen-sensitive discoloration sensing mechanism has a detachable compact optical channel installed therein, which is installed in the hydrogen-sensitive discoloration sensing mechanism when the distance between the hydrogen-sensitive discoloration tape and the hydrogen-sensitive discoloration sensing mechanism is less than a preset distance value.

[0012] In the embodiment of the present application, the hydrogen-sensitive discoloration sensing mechanism comprises a light source assembly, an RGB photoelectric sensor, a convex lens and a concave lens.

[0013] The light source assembly is used for irradiating the hydrogen-sensitive discoloration tape.

[0014] The concave lens is arranged between the light source assembly and the hydrogen-sensitive discoloration tape.

[0015] The RGB photoelectric sensor is arranged above the hydrogen-sensitive discoloration tape, used for collecting color signals of the hydrogen-sensitive discoloration tape, converting the collected color signals into electrical signals, and analyzing the electrical signals to obtain color R value, G value and B value.

[0016] The convex lens is arranged between the RGB photoelectric sensor and the hydrogen-sensitive discoloration tape.

[0017] In the embodiment of the present application, the compact optical channel comprises a plurality of total reflection mirrors, the angle of the total reflection mirror is adjustable, and the light path emitted by the light source assembly is vertically irradiated on the hydrogen-sensitive discoloration tape by adjusting the angle of the total reflection mirror, thereby increasing the effective light irradiation area on the hydrogen-sensitive discoloration tape.

[0018] In the embodiment of the present application, the distance between the hydrogen-sensitive discoloration tape and the hydrogen-sensitive discoloration sensing mechanism comprises:

[0019] The first distance is the distance between the light source assembly and the concave lens.

[0020] The second distance is the distance between the concave lens and the hydrogen-sensitive discoloration tape.

[0021] The third distance is the distance between the hydrogen-sensitive discoloration tape and the convex lens.

[0022] The fourth distance is the distance between the convex lens and the RGB photoelectric sensor.

[0023] In the embodiment of the present application, the distance judgment module is specifically used for:

[0024] judging whether the sum of the first distance and the second distance is less than a first preset distance value, or judging whether the sum of the third distance and the fourth distance is less than a second preset distance value.

[0025] In the embodiment of the present application, the compact optical channel is installed between the light source assembly and the concave lens or between the concave lens and the hydrogen-sensitive color-changing tape when the sum of the first distance and the second distance is less than the first preset distance value and the sum of the third distance and the fourth distance is greater than the second preset distance value.

[0026] In the embodiment of the present application, the compact optical channel is installed between the hydrogen-sensitive color-changing tape and the convex lens or between the convex lens and the RGB photosensor when the sum of the first distance and the second distance is greater than the first preset distance value and the sum of the third distance and the fourth distance is less than the second preset distance value.

[0027] In the embodiment of the present application, the compact optical channel is installed between the light source assembly and the concave lens or between the concave lens and the hydrogen-sensitive color-changing tape when the sum of the first distance and the second distance is less than the first preset distance value and the sum of the third distance and the fourth distance is less than the second preset distance value, and the compact optical channel is located between the hydrogen-sensitive color-changing tape and the convex lens or between the convex lens and the RGB photosensor.

[0028] In the embodiment of the present application, the control module is specifically configured to determine whether hydrogen leakage occurs according to the R value, the G value and the B value obtained by analyzing the RGB photosensor.

[0029] In the embodiment of the present application, the determination of whether hydrogen leakage occurs according to the R value, the G value and the B value obtained by analyzing the RGB photosensor includes:

[0030] obtaining initial R value, initial G value and initial B value of the hydrogen-sensitive color-changing tape at an initial moment;

[0031] collecting detection R value, detection G value and detection B value of the hydrogen-sensitive color-changing tape after a preset period of time;

[0032] obtaining change R value according to the initial R value and the detection R value, obtaining change G value according to the initial G value and the detection G value, and obtaining change B value according to the initial B value and the detection B value;

[0033] determining whether the change R value exceeds a first preset threshold value, whether the change G value exceeds a second preset threshold value or whether the change B value exceeds a third preset threshold value; if yes, it is determined that hydrogen leakage occurs.

[0034] In the embodiment of the present application, the hydrogen leakage detection system further includes an alarm module, which is configured to calculate a risk level of hydrogen leakage when hydrogen leakage occurs, and perform an alarm action according to the risk level of hydrogen leakage.

[0035] In the embodiment of the present application, the calculation of the risk level of hydrogen leakage includes:

[0036] According to the change R value, the R value color change rate of the hydrogen sensitive color change tape is calculated;

[0037] According to the change G value, the G value color change rate of the hydrogen sensitive color change tape is calculated;

[0038] According to the change B value, the B value color change rate of the hydrogen sensitive color change tape is calculated;

[0039] According to the R value color change rate, the G value color change rate or the B value color change rate of the hydrogen sensitive color change tape, the risk level of the hydrogen leakage is obtained.

[0040] The second aspect of the present application provides a hydrogen leakage detection method, the method comprising:

[0041] The hydrogen sensitive color change tape is attached at the hydrogen pipeline connection, the hydrogen sensitive color change tape is used to sense the leaked hydrogen at the hydrogen pipeline connection, and the color signal is displayed according to the color change response of the leaked hydrogen concentration;

[0042] The hydrogen sensitive color change sensing mechanism is installed, the distance between the hydrogen sensitive color change tape and the hydrogen sensitive color change sensing mechanism is calculated, whether the distance between the hydrogen sensitive color change tape and the hydrogen sensitive color change sensing mechanism is less than a preset distance value is judged, if yes, the compact optical channel is installed in the hydrogen sensitive color change sensing mechanism;

[0043] The hydrogen sensitive color change tape is monitored in real time, the color signal of the hydrogen sensitive color change tape is collected, and the collected color signal is converted into an electrical signal;

[0044] According to the electrical signal, whether the hydrogen leakage occurs is judged.

[0045] In the embodiment of the present application, the method further comprises:

[0046] When it is determined that the hydrogen leakage occurs, the risk level of the hydrogen leakage is calculated;

[0047] According to the risk level of the hydrogen leakage, an alarm action is performed.

[0048] The third aspect of the present application provides a computer device, comprising:

[0049] A memory;

[0050] A processor; and

[0051] A computer program;

[0052] The computer program is stored in the memory and is configured to be executed by the processor to realize the hydrogen leakage detection method as described above.

[0053] The fourth aspect of the present application provides a computer readable storage medium, a computer program is stored on the computer readable storage medium, the computer program is executed by the processor to realize the hydrogen leakage detection method as described above.

[0054] The hydrogen leakage detection system is provided with a hydrogen-sensitive color-changing tape, which is attached to a place where hydrogen is prone to leakage, and the color signal of the hydrogen-sensitive color-changing tape is collected to monitor whether there is hydrogen leakage.

[0055] Other features and advantages of the technical scheme of the present application will be described in detail in the specific implementation part below. BRIEF DESCRIPTION OF DRAWINGS

[0056] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of this application and help to explain the present application together with the specific embodiments of the present application and their description. The accompanying drawings in the present application are as follows:

[0057] Figure 1 Fig. 1 is a structural schematic diagram of a hydrogen leakage detection system provided by an embodiment of the present application;

[0058] Figure 2 Fig. 2 is a structural schematic diagram of a hydrogen-sensitive color-changing sensing mechanism provided by an embodiment of the present application;

[0059] Figure 3 Fig. 3 is a structural schematic diagram of a hydrogen-sensitive color-changing sensing mechanism provided by an embodiment of the present application, which is installed with a compact optical channel;

[0060] Figure 4 Fig. 4 is a flow chart of a hydrogen leakage detection method provided by an embodiment of the present application.

[0061] EXPLANATION OF REFERENCE NUMERALS

[0062] 110-light source assembly, 120-concave lens, 130-convex lens, 140-RGB photoelectric sensor, 150-electrical signal transmission line, 160-compact optical channel, 161-total reflection mirror, 200-hydrogen-sensitive color-changing tape. DETAILED DESCRIPTION

[0063] In order to make the technical scheme and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0064] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0065] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0066] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] In the process of implementing the present application, the inventors found that the prior art realizes the monitoring of hydrogen leakage by manual inspection or installation of hydrogen leakage detection alarm instrument, but for narrow space scenes such as hydrogen pipeline, hydrogen-doped natural gas pipeline, hydrogen storage well, etc., it is not easy to carry out manual inspection or difficult to find by manual inspection, and it is not easy to install hydrogen leakage detection alarm instrument, and it is difficult to detect and locate hydrogen leakage in time.

[0068] To solve the above problems, the hydrogen leakage detection system provided in the embodiments of the present application has the characteristics that it comprises: a hydrogen-sensitive color-changing adhesive tape, which is attached to a hydrogen pipeline connection position and used for sensing hydrogen leakage at the hydrogen pipeline connection position, responding to the hydrogen leakage concentration by color changing, and displaying a color signal; a hydrogen-sensitive color-changing sensing mechanism, which is used for monitoring the hydrogen-sensitive color-changing adhesive tape, collecting the color signal of the hydrogen-sensitive color-changing adhesive tape, and converting the collected color signal into an electrical signal; a compact optical channel, which is used for increasing the effective monitoring area of the hydrogen-sensitive color-changing sensing mechanism; a distance judgment module, which is used for judging whether the distance between the hydrogen-sensitive color-changing adhesive tape and the hydrogen-sensitive color-changing sensing mechanism is less than a preset distance value; and a control module, which is used for judging whether hydrogen leakage occurs according to the electrical signal output by the hydrogen-sensitive color-changing sensing mechanism. The hydrogen-sensitive color-changing sensing mechanism has a detachably installed compact optical channel. The compact optical channel is installed in the hydrogen-sensitive color-changing sensing mechanism when the distance judgment module judges that the distance between the hydrogen-sensitive color-changing adhesive tape and the hydrogen-sensitive color-changing sensing mechanism is less than the preset distance value. The hydrogen leakage detection system can monitor whether hydrogen leakage occurs by attaching the hydrogen-sensitive color-changing adhesive tape to a position where hydrogen is prone to leak and collecting the color signal of the hydrogen-sensitive color-changing adhesive tape. The hydrogen-sensitive color-changing adhesive tape can be installed in a narrow space, and the compact optical channel can increase the effective monitoring area of the hydrogen-sensitive color-changing adhesive tape.

[0069] Embodiment 1

[0070] Figure 1 is a structural schematic diagram of the hydrogen leakage detection system provided in the embodiments of the present application. As shown in Figure 1 , the present embodiment provides a hydrogen leakage detection system, which comprises:

[0071] a hydrogen-sensitive color-changing adhesive tape 200, which is attached to a hydrogen pipeline connection position and used for sensing hydrogen leakage at the hydrogen pipeline connection position, responding to the hydrogen leakage concentration by color changing, and displaying a color signal;

[0072] a hydrogen-sensitive color-changing sensing mechanism, which is used for monitoring the hydrogen-sensitive color-changing adhesive tape 200, collecting the color signal of the hydrogen-sensitive color-changing adhesive tape 200, and converting the collected color signal into an electrical signal;

[0073] a compact optical channel 160, which is used for increasing the effective monitoring area of the hydrogen-sensitive color-changing sensing mechanism;

[0074] a distance judgment module, which is used for judging whether the distance between the hydrogen-sensitive color-changing adhesive tape 200 and the hydrogen-sensitive color-changing sensing mechanism is less than a preset distance value compact optical channel 160;

[0075] a control module, which is used for judging whether hydrogen leakage occurs according to the electrical signal output by the hydrogen-sensitive color-changing sensing mechanism;

[0076] The hydrogen-sensitive discoloration sensing mechanism has a detachably installed compact optical channel 160, which is installed in the hydrogen-sensitive discoloration sensing mechanism when the distance determining module determines that the distance between the hydrogen-sensitive discoloration tape 200 and the hydrogen-sensitive discoloration sensing mechanism is less than the preset distance value.

[0077] Specifically, the hydrogen-sensitive discoloration tape 200 is prepared by using a hydrogen-sensitive leak detection material, so that it has a discoloration response characteristic to hydrogen leakage. With the concentration of the leaked hydrogen, the hydrogen-sensitive discoloration tape 200 changes from light color to dark blue.

[0078] When the compact optical channel 160 does not need to be installed in the hydrogen-sensitive discoloration sensing mechanism, the color signal of the hydrogen-sensitive discoloration tape 200 is collected by the hydrogen-sensitive discoloration sensing mechanism; when the compact optical channel 160 needs to be installed in the hydrogen-sensitive discoloration sensing mechanism, the compact optical channel 160 is installed in the hydrogen-sensitive discoloration sensing mechanism to form a compact hydrogen-sensitive discoloration sensing mechanism, and the color signal of the hydrogen-sensitive discoloration tape 200 is collected by the compact hydrogen-sensitive discoloration sensing mechanism.

[0079] In this embodiment, Figure 2 is a structural schematic diagram of the hydrogen-sensitive discoloration sensing mechanism provided in Embodiment 1 of the present application, as Figure 2 shown, the hydrogen-sensitive discoloration sensing mechanism comprises a light source assembly 110, an RGB photoelectric sensor 140, a convex lens 130, and a concave lens 120;

[0080] The light source assembly 110 is used to irradiate the hydrogen-sensitive discoloration tape 200.

[0081] The concave lens 120 is arranged between the light source assembly 110 and the hydrogen-sensitive discoloration tape 200, and is used to diverge the light path generated by the light source assembly 110.

[0082] The RGB photoelectric sensor 140 is arranged above the hydrogen-sensitive discoloration tape 200, and is used to collect the color signal of the hydrogen-sensitive discoloration tape 200, convert the collected color signal into an electrical signal, and analyze the electrical signal to obtain color R value, G value and B value.

[0083] The convex lens 130 is arranged between the RGB photoelectric sensor 140 and the hydrogen-sensitive discoloration tape 200, and is used to converge the light path reflected by the hydrogen-sensitive discoloration tape 200, so as to be collected by the RGB photoelectric sensor 140.

[0084] For the scenes of hydrogen transmission pipelines, hydrogen-doped natural gas pipelines, and hydrogen storage wells, the protruding height of the hydrogen-sensitive discoloration sensing device after installation should be ≤2 cm, which is convenient for the subsequent brushing of the anticorrosive coating. However, if the hydrogen-sensitive discoloration sensing device is too close to the hydrogen-sensitive discoloration functional tape, the effective detection area will be greatly reduced.

[0085] In the embodiment, the distance between the hydrogen-sensitive color-changing adhesive tape 200 and the hydrogen-sensitive color-changing sensing mechanism includes: Figure 3 Figure 3 As shown in the figure, the compact optical channel 160 includes a plurality of total reflection mirrors 161, the angle of the total reflection mirror 161 can be flexibly adjusted, by adjusting the angle of the total reflection mirror, the light path emitted by the light source assembly 110 is vertically irradiated on the hydrogen-sensitive color-changing adhesive tape 200, and the effective light irradiation area on the hydrogen-sensitive color-changing adhesive tape 200 is increased. The total reflection mirror 161 can make the light path generated by the light source assembly 110 irradiate on the hydrogen-sensitive color-changing adhesive tape 200 in a larger area, and can make the color signal reflected on the hydrogen-sensitive color-changing adhesive tape 200 be received by the RGB photoelectric sensor 140 in a larger range.

[0086] In the embodiment, the distance between the hydrogen-sensitive color-changing adhesive tape 200 and the hydrogen-sensitive color-changing sensing mechanism includes:

[0087] The first distance is the distance between the light source assembly 110 and the concave lens 120;

[0088] The second distance is the distance between the concave lens 120 and the hydrogen-sensitive color-changing adhesive tape 200;

[0089] The third distance is the distance between the hydrogen-sensitive color-changing adhesive tape 200 and the convex lens 130;

[0090] The fourth distance is the distance between the convex lens 130 and the RGB photoelectric sensor 140.

[0091] In the embodiment, the distance determining module is specifically used for:

[0092] determining whether the sum of the first distance and the second distance is less than a first preset distance value, or determining whether the sum of the third distance and the fourth distance is less than a second preset distance value.

[0093] In the embodiment, the distance between the hydrogen-sensitive color-changing adhesive tape 200 and the hydrogen-sensitive color-changing sensing mechanism includes:

[0094] When the sum of the first distance and the second distance is less than or equal to the first preset distance value or the sum of the third distance and the fourth distance is less than or equal to the second preset distance value, the compact optical channel 160 is installed in the hydrogen-sensitive color-changing sensing mechanism.

[0095] Specifically, the compact optical channel 160 is installed in the hydrogen-sensitive color-changing sensing mechanism, including:

[0096] ​when the sum of the first distance and the second distance is less than or equal to the first preset distance value but the sum of the third distance and the fourth distance is greater than the second preset distance value, the compact optical channel 160 is installed between the light source assembly 110 and the concave lens 120 or between the concave lens 120 and the hydrogen-sensitive color-changing tape 200;

[0097] when the sum of the first distance and the second distance is greater than the first preset distance value but the sum of the third distance and the fourth distance is less than or equal to the second preset distance value, the compact optical channel 160 is installed between the hydrogen-sensitive color-changing tape 200 and the convex lens 130 or between the convex lens 130 and the RGB photoelectric sensor 140;

[0098] when the sum of the first distance and the second distance is less than or equal to the first preset distance value and the sum of the third distance and the fourth distance is less than or equal to the second preset distance value, the compact optical channel 160 is installed between the light source assembly 110 and the concave lens 120 or between the concave lens 120 and the hydrogen-sensitive color-changing tape 200, and the compact optical channel 160 is installed between the hydrogen-sensitive color-changing tape 200 and the convex lens 130 or between the convex lens 130 and the RGB photoelectric sensor 140.

[0099] In the embodiment, the first preset distance value and the second preset distance value are both 100 mm.

[0100] When the compact optical channel 160 is not needed to be installed in the hydrogen-sensitive color-changing sensing mechanism, the color signal of the hydrogen-sensitive color-changing tape 200 is collected by the hydrogen-sensitive color-changing sensing mechanism, the color signal of the hydrogen-sensitive color-changing tape 200 is collected by the RGB photoelectric sensor 140, and is converted into R value, G value and B value; when the compact optical channel 160 is needed to be installed in the hydrogen-sensitive color-changing sensing mechanism, the compact optical channel 160 is installed in the hydrogen-sensitive color-changing sensing mechanism to form a compact hydrogen-sensitive color-changing sensing mechanism, the color signal of the hydrogen-sensitive color-changing tape 200 is collected by the compact hydrogen-sensitive color-changing sensing mechanism, the color signal of the hydrogen-sensitive color-changing tape 200 is collected by the RGB photoelectric sensor 140, and is converted into R value, G value and B value, and the R value, G value and B value are transmitted to the control module through the electric signal transmission line 150.

[0101] In the embodiment, the control module is specifically used for judging whether the hydrogen leakage occurs according to the R value, G value and B value obtained by the RGB photoelectric sensor.

[0102] In the embodiment, judging whether the hydrogen leakage occurs according to the R value, G value and B value obtained by the RGB photoelectric sensor includes:

[0103] acquire initial R value, initial G value and initial B value of hydrogen-sensitive color-changing tape 200 at initial time;

[0104] acquire detection R value, detection G value and detection B value of hydrogen-sensitive color-changing tape 200 after a preset time period;

[0105] acquire change R value according to initial R value and detection R value, acquire change G value according to initial G value and detection G value, and acquire change B value according to initial B value and detection B value;

[0106] determine whether change R value exceeds first preset threshold value, whether change G value exceeds second preset threshold value or whether change B value exceeds third preset threshold value; if yes, it is determined that hydrogen leakage occurs.

[0107] In the embodiment, the first preset threshold value, the second preset threshold value and the third preset threshold value are all positive numbers.

[0108] That is:

[0109] R t0 -R t0+t >m or G t0 -G t0+t >n

[0110] wherein, R t0 and G t0 are initial R value and initial G value of hydrogen-sensitive color-changing tape 200 at t0(time point of initial time), R t0+t and G t0+t are detection R value and detection G value of hydrogen-sensitive color-changing tape 200 after t(time period), in order to guarantee the effectiveness of the alarm and avoid false positives, t can be usually 0.1s, 0.2s, 0.3s, 0.4s,..., 1.8s, 1.9s, 2.0s, m and n values are color-changing criterion threshold points (m is the first preset threshold value, n is the second preset threshold value), and are all positive numbers.

[0111] In the embodiment, the hydrogen leakage detection system further comprises an alarm module, which is used for calculating a risk level of hydrogen leakage when hydrogen leakage occurs, and performing an alarm action according to the risk level of hydrogen leakage.

[0112] In the embodiment, the calculation of the risk level of hydrogen leakage comprises:

[0113] calculating R value color-changing rate of hydrogen-sensitive color-changing tape 200 according to change R value;

[0114] calculating G value color-changing rate of hydrogen-sensitive color-changing tape 200 according to change G value;

[0115] calculating B value color-changing rate of hydrogen-sensitive color-changing tape 200 according to change B value;

[0116] According to the R-value color change rate, the G-value color change rate or the B-value color change rate of the hydrogen-sensitive color-changing tape 200, the risk level of hydrogen leakage can be obtained.

[0117] The calculation formula of the R-value color change rate is:

[0118] R RL = (R t0 - R t0+t ) / t.

[0119] Similarly, the calculation formula of the G-value color change rate is:

[0120] G RL = (G t0 - G t0+t ) / t.

[0121] According to one of the R-value color change rate, the G-value color change rate or the B-value color change rate of the hydrogen-sensitive color-changing tape 200, the risk level of hydrogen leakage can be obtained. Specifically, the R-value color change rate, the G-value color change rate or the B-value color change rate corresponds to three risk level tables respectively, and the risk level corresponding to the color change rate obtained by querying the risk table.

[0122] As shown in Table 1 and Table 2, Table 1 is a risk level table corresponding to the R-value color change rate, and Table 2 is a risk level table corresponding to the G-value color change rate.

[0123] Table 1: Risk level table corresponding to R-value color change rate

[0124] [R RL values]] Risk level ≤10 Low risk 10～30 Medium risk 30～40 High risk ≥40 Urgent risk

[0125] Table 2: Risk level table corresponding to G-value color change rate

[0126]

[0127]

[0128] In this embodiment, the corresponding alarm action is performed according to the risk level obtained by querying.

[0129] When the hydrogen leakage is determined, the control module transmits the hydrogen leakage alarm information and the hydrogen leakage risk level signal to the central control system, and corresponding interlocking measures are taken through the central control system. When the risk is low, the risk level change should be continuously tracked. If the risk level remains basically unchanged, the original state can be maintained. If the risk is medium, the operator of the hydrogen scene should strengthen the inspection of the leakage alarm site. If the risk is high, the hydrogen leakage site should be disconnected from the hydrogen system as much as possible, and corresponding pressure relief and treatment measures should be taken to avoid further expansion of the hydrogen leakage. If the risk is urgent, emergency shutdown should be taken immediately, and the corresponding hydrogen supply should be cut off. The hydrogen remaining in the hydrogen system should be discharged as soon as possible through the emergency discharge outlet.

[0130] Embodiment 2

[0131] Figure 4 is a flow chart of the hydrogen leakage detection method provided by Embodiment 2 of the present application. As shown in Figure 4 , the hydrogen leakage detection method provided by the present embodiment comprises the following steps:

[0132] S1. A hydrogen-sensitive color-changing tape 200 is attached at the hydrogen pipeline connection, which is used to sense the hydrogen leakage at the hydrogen pipeline connection, and changes color in response to the concentration of the leaked hydrogen to display a color signal;

[0133] S2. A hydrogen-sensitive color-changing sensing mechanism is installed, and the distance between the hydrogen-sensitive color-changing tape and the hydrogen-sensitive color-changing sensing mechanism is calculated to determine whether the distance is less than a preset distance value. If yes, the compact optical channel is installed in the hydrogen-sensitive color-changing sensing mechanism;

[0134] S3. The hydrogen-sensitive color-changing tape 200 is monitored in real time, the color signal of the hydrogen-sensitive color-changing tape 200 is collected, and the collected color signal is converted into an electrical signal;

[0135] S4. Whether hydrogen leakage occurs is determined according to the electrical signal.

[0136] In the embodiment, the method further comprises:

[0137] S5. When it is determined that hydrogen leakage occurs, the risk level of the hydrogen leakage is calculated;

[0138] S6. An alarm action is performed according to the risk level of the hydrogen leakage.

[0139] The method is applied to a hydrogen leakage detection system, and the hydrogen leakage detection system comprises:

[0140] A hydrogen-sensitive color-changing tape 200 is attached at the hydrogen pipeline connection, which is used to sense the hydrogen leakage at the hydrogen pipeline connection, and changes color in response to the concentration of the leaked hydrogen to display a color signal;

[0141] a hydrogen-sensitive color-changing sensing mechanism for monitoring the hydrogen-sensitive color-changing tape 200, collecting color signals of the hydrogen-sensitive color-changing tape 200, and converting the collected color signals into electrical signals;

[0142] a compact optical channel 160 for increasing the effective monitoring area of the hydrogen-sensitive color-changing sensing mechanism;

[0143] a distance judgment module for judging whether the distance between the hydrogen-sensitive color-changing tape 200 and the hydrogen-sensitive color-changing sensing mechanism is less than a preset distance value compact optical channel 160;

[0144] a control module for judging whether hydrogen leakage occurs according to the electrical signals output by the hydrogen-sensitive color-changing sensing mechanism;

[0145] The hydrogen-sensitive color-changing sensing mechanism has a detachably installed compact optical channel 160, which is installed in the hydrogen-sensitive color-changing sensing mechanism when the distance judgment module judges that the distance between the hydrogen-sensitive color-changing tape 200 and the hydrogen-sensitive color-changing sensing mechanism is less than a preset distance value.

[0146] Specifically, the hydrogen-sensitive color-changing tape 200 is prepared from a hydrogen-sensitive leakage detection material to have a color-changing response characteristic to hydrogen leakage. With the concentration of the leaked hydrogen, the hydrogen-sensitive color-changing tape 200 changes from light color to dark blue.

[0147] When the compact optical channel 160 does not need to be installed in the hydrogen-sensitive color-changing sensing mechanism, the color signals of the hydrogen-sensitive color-changing tape 200 are collected by the hydrogen-sensitive color-changing sensing mechanism; when the compact optical channel 160 needs to be installed in the hydrogen-sensitive color-changing sensing mechanism, the compact optical channel 160 is installed in the hydrogen-sensitive color-changing sensing mechanism to form a compact hydrogen-sensitive color-changing sensing mechanism, and the color signals of the hydrogen-sensitive color-changing tape 200 are collected by the compact hydrogen-sensitive color-changing sensing mechanism.

[0148] In this embodiment, as shown in Figure 2 The hydrogen-sensitive color-changing sensing mechanism includes a light source assembly 110, an RGB photoelectric sensor 140, a convex lens 130, and a concave lens 120.

[0149] The light source assembly 110 is used to irradiate the hydrogen-sensitive color-changing tape 200.

[0150] The concave lens 120 is arranged between the light source assembly 110 and the hydrogen-sensitive color-changing tape 200, and is used to diverge the light path generated by the light source assembly 110.

[0151] The RGB photosensor 140 is arranged above the hydrogen-sensitive color-changing tape 200, used to collect the color signal of the hydrogen-sensitive color-changing tape 200, and convert the collected color signal into an electrical signal, and analyze the electrical signal to obtain color R value, G value and B value.

[0152] The convex lens 130 is arranged between the RGB photosensor 140 and the hydrogen-sensitive color-changing tape 200, used to converge the light path reflected by the hydrogen-sensitive color-changing tape 200, so as to be collected by the RGB photosensor 140.

[0153] For the scene of hydrogen transmission pipeline, hydrogen-doped natural gas pipeline, hydrogen storage well, etc., it is required that after the hydrogen-sensitive color-changing sensing device is installed, the protruding height thereof should be ≤2cm, facilitating the subsequent brushing of the anticorrosive coating. When the hydrogen-sensitive color-changing sensing device is too close to the hydrogen-sensitive color-changing functional tape, the effective detection area will be greatly reduced.

[0154] In the embodiment, as shown in Figure 3 The compact optical path 160 includes a plurality of total reflection mirrors 161, the angle of which can be flexibly adjusted. By adjusting the angle of the total reflection mirror, the light path emitted by the light source assembly 110 is vertically irradiated on the hydrogen-sensitive color-changing tape 200, increasing the effective light irradiation area on the hydrogen-sensitive color-changing tape 200. The total reflection mirror 161 can make the light path generated by the light source assembly 110 irradiate on the hydrogen-sensitive color-changing tape 200 in a larger area, and can make the color signal reflected on the hydrogen-sensitive color-changing tape 200 be received by the RGB photosensor 140 in a larger range.

[0155] In the embodiment, the distance between the hydrogen-sensitive color-changing tape 200 and the hydrogen-sensitive color-changing sensing mechanism includes:

[0156] The first distance is the distance between the light source assembly 110 and the concave lens 120;

[0157] The second distance is the distance between the concave lens 120 and the hydrogen-sensitive color-changing tape 200;

[0158] The third distance is the distance between the hydrogen-sensitive color-changing tape 200 and the convex lens 130;

[0159] The fourth distance is the distance between the convex lens 130 and the RGB photosensor 140.

[0160] In the embodiment, the distance judgment module is specifically used for:

[0161] Judging whether the sum of the first distance and the second distance is less than a first preset distance value, or judging whether the sum of the third distance and the fourth distance is less than a second preset distance value.

[0162] In the embodiment, the determining whether the compact optical channel 160 needs to be installed in the hydrogen-sensitive discoloration sensing mechanism according to the distance between the hydrogen-sensitive discoloration tape 200 and the hydrogen-sensitive discoloration sensing mechanism comprises:

[0163] When the sum of the first distance and the second distance is less than or equal to the first preset distance value or the sum of the third distance and the fourth distance is less than or equal to the second preset distance value, the compact optical channel 160 is installed in the hydrogen-sensitive discoloration sensing mechanism.

[0164] Specifically, the installing the compact optical channel 160 in the hydrogen-sensitive discoloration sensing mechanism comprises:

[0165] When the sum of the first distance and the second distance is less than or equal to the first preset distance value but the sum of the third distance and the fourth distance is greater than the second preset distance value, the compact optical channel 160 is installed between the light source assembly 110 and the concave lens 120 or the compact optical channel 160 is installed between the concave lens 120 and the hydrogen-sensitive discoloration tape 200;

[0166] When the sum of the first distance and the second distance is greater than the first preset distance value but the sum of the third distance and the fourth distance is less than or equal to the second preset distance value, the compact optical channel 160 is installed between the hydrogen-sensitive discoloration tape 200 and the convex lens 130 or the compact optical channel 160 is installed between the convex lens 130 and the RGB photoelectric sensor 140;

[0167] When the sum of the first distance and the second distance is less than or equal to the first preset distance value and the sum of the third distance and the fourth distance is less than or equal to the second preset distance value, the compact optical channel 160 is installed between the light source assembly 110 and the concave lens 120 or the compact optical channel 160 is installed between the concave lens 120 and the hydrogen-sensitive discoloration tape 200, and the compact optical channel 160 is installed between the hydrogen-sensitive discoloration tape 200 and the convex lens 130 or the compact optical channel 160 is installed between the convex lens 130 and the RGB photoelectric sensor 140.

[0168] In the embodiment, the first preset distance value and the second preset distance value are both 100 mm.

[0169] When the compact optical channel 160 is not required to be installed in the hydrogen-sensitive discoloration sensing mechanism, the color signal of the hydrogen-sensitive discoloration tape 200 is collected by the hydrogen-sensitive discoloration sensing mechanism, the color signal of the hydrogen-sensitive discoloration tape 200 is collected by the RGB photoelectric sensor 140, and is converted into R value, G value and B value; when the compact optical channel 160 is required to be installed in the hydrogen-sensitive discoloration sensing mechanism, the compact optical channel 160 is installed in the hydrogen-sensitive discoloration sensing mechanism to form a compact hydrogen-sensitive discoloration sensing mechanism, the color signal of the hydrogen-sensitive discoloration tape 200 is collected by the compact hydrogen-sensitive discoloration sensing mechanism, the color signal of the hydrogen-sensitive discoloration tape 200 is collected by the RGB photoelectric sensor 140, and is converted into R value, G value and B value, and the R value, G value and B value are transmitted to the control module through the electric signal transmission line 150.

[0170] In the embodiment, the control module is specifically configured to determine whether the hydrogen leakage occurs according to the R value, the G value and the B value obtained by the RGB photoelectric sensor.

[0171] In the embodiment, the determination of whether the hydrogen leakage occurs according to the R value, the G value and the B value obtained by the RGB photoelectric sensor includes:

[0172] obtaining initial R value, initial G value and initial B value of the hydrogen-sensitive discoloration tape 200 at an initial time point;

[0173] collecting detection R value, detection G value and detection B value of the hydrogen-sensitive discoloration tape 200 after a preset time period;

[0174] obtaining change R value according to the initial R value and the detection R value, obtaining change G value according to the initial G value and the detection G value, and obtaining change B value according to the initial B value and the detection B value;

[0175] determining whether the change R value exceeds a first preset threshold value, whether the change G value exceeds a second preset threshold value or whether the change B value exceeds a third preset threshold value; if yes, it is determined that the hydrogen leakage occurs.

[0176] In the embodiment, the first preset threshold value, the second preset threshold value and the third preset threshold value are all positive numbers.

[0177] That is:

[0178] R t0 -R t0+t >m or G t0 -G t0+t >n

[0179] wherein, R t0 and G t0 are initial R value and initial G value of the hydrogen-sensitive discoloration tape 200 at t0(time point), R t0+t and Gt0+t are the detection R value and the detection G value of the hydrogen-sensitive color-changing tape 200 after t time (a preset time period), in order to guarantee the effectiveness of the alarm and avoid false positives, t can usually be 0.1s, 0.2s, 0.3s, 0.4s,..., 1.8s, 1.9s, 2.0s, m and n are variable threshold points (m is a first preset threshold, and n is a second preset threshold), and are positive numbers.

[0180] In the embodiment of the present application, the hydrogen leakage detection system further comprises an alarm module, which is used to calculate the risk level of hydrogen leakage when hydrogen leakage occurs, and perform an alarm action according to the risk level of hydrogen leakage.

[0181] In the embodiment, the calculation of the risk level of hydrogen leakage comprises:

[0182] calculating the R value color change rate of the hydrogen-sensitive color-changing tape 200 according to the change R value;

[0183] calculating the G value color change rate of the hydrogen-sensitive color-changing tape 200 according to the change G value;

[0184] calculating the B value color change rate of the hydrogen-sensitive color-changing tape 200 according to the change B value;

[0185] obtaining the risk level of hydrogen leakage according to the R value color change rate, the G value color change rate or the B value color change rate of the hydrogen-sensitive color-changing tape 200.

[0186] The calculation formula of the R value color change rate is:

[0187] R RL =(R t0 -R t0+t ) / t;

[0188] Similarly, the calculation formula of the G value color change rate is:

[0189] G RL =(G t0 -G t0+t ) / t.

[0190] According to one of the R value color change rate, the G value color change rate or the B value color change rate of the hydrogen-sensitive color-changing tape 200, the risk level of hydrogen leakage can be obtained according to the one. Specifically, the R value color change rate, the G value color change rate or the B value color change rate corresponds to three risk level tables, and the risk level corresponding to the color change rate obtained by querying and calculating the risk table.

[0191] Table 1 is a risk level table corresponding to the R value color change rate, and Table 2 is a risk level table corresponding to the G value color change rate, as shown in Table 1 and Table 2:

[0192] Table 1: Risk level table corresponding to R value discoloration rate

[0193] [R RL values]]> Risk level ≤10 Low risk 10～30 Medium risk 30～40 High risk ≥40 Urgent risk

[0194] Table 2: Risk level table corresponding to G value discoloration rate

[0195] G RL values Risk level ≤8 Low risk 8～20 Medium risk 20～30 High risk ≥30 Urgent risk

[0196] In this embodiment, the corresponding alarm action is performed according to the risk level obtained by the query.

[0197] When the hydrogen leakage is determined, the control module transmits the hydrogen leakage alarm information and the hydrogen leakage risk level signal to the central control system, and takes corresponding interlocking measures through the central control system. When the risk level is low, the risk level change should be continuously tracked. If the risk level remains basically unchanged, the original state can be maintained; if the risk level is medium, the operator of the hydrogen scene should strengthen the inspection of the leakage alarm site; if the risk level is high, the hydrogen leakage site should be disconnected from the hydrogen system as much as possible, and corresponding pressure relief and treatment measures should be taken to avoid further expansion of the hydrogen leakage; if the risk level is emergency, emergency shutdown should be taken immediately, and the corresponding hydrogen supply should be cut off. The hydrogen remaining in the hydrogen system should be discharged as soon as possible through the emergency relief outlet

[0198] Embodiment 3

[0199] In this embodiment, the hydrogen-sensitive discoloration tape 200 is installed at the pipe connection of the hydrogen refueling station. Before the hydrogen-sensitive discoloration function tape is discolored (at the original time), R0=207, G0=228, and B0=232, and the colors remain unchanged before the leakage occurs. After complete discoloration, R=4, G=41, and B=249.

[0200] The hydrogen-sensitive discoloration sensing mechanism is installed, and the color signal on the hydrogen-sensitive discoloration tape 200 is collected by the RGB photoelectric sensor 140. The sampling interval of the sensor is t=1s, at this time, m=15, and n=11.

[0201] The color change information of the hydrogen-sensitive discoloration tape 200 is converted into the detection R value, the detection G value, and the detection B value by the RGB photoelectric sensor 140, and the detection R value, the detection G value, and the detection B value and the time signal are transmitted to the control module in real time.

[0202] The control module calculates according to the detection R value, the detection G value, and the detection B value and the time signal, and finds that at time t, R0-R t =0, G0-G t =0, there is no hydrogen leakage.

[0203] Embodiment 4

[0204] In this embodiment, hydrogen-sensitive color-changing tape 200 is installed at the pipeline connection of the hydrogen refueling station. Before the hydrogen-sensitive color-changing tape changes color (at the original time), R0 = 207, G0 = 228, B0 = 232, and the color remains unchanged before any leakage occurs; after complete color change, R = 4, G = 41, B = 249.

[0205] Install a hydrogen-sensitive color-changing sensor mechanism, and collect the color signal on the hydrogen-sensitive color-changing tape 200 through the RGB photoelectric sensor 140. The sampling interval of the sensor is t = 1s. At this time, m = 15 and n = 11.

[0206] The color change information of the hydrogen-sensitive color-changing tape 200 is converted into detection R value, detection G value and detection B value by the RGB photoelectric sensor 140, and the detection R value, detection G value and detection B value and time signal are transmitted to the control module in real time.

[0207] Based on the detected R value, detected G value, detected B value, and time signal, the control module calculates and finds that after t=1s, R0-R in RGB... t =25, G0-G t =13 satisfies R t0 -R t0+t >m or G t0 -G t0+t If the value is greater than n, a hydrogen leak is confirmed, and a hydrogen leak alarm signal is issued.

[0208] Calculate R RL and G RL They are R RL =25, G RL =13. Referring to the data in Tables 1 and 2, the hydrogen leakage risk level is medium. Operators in hydrogen-related scenarios should strengthen the inspection of leakage alarm points to avoid increasing the hydrogen leakage risk level.

[0209] Example 5

[0210] In this embodiment, hydrogen-sensitive color-changing tape 200 is installed at the connection of the hydrogen supply mother station pipeline. Before the hydrogen-sensitive color-changing tape changes color (at the original time), R0 = 207, G0 = 228, B0 = 232, and the color remains unchanged before any leakage occurs; after complete color change, R = 4, G = 41, B = 249.

[0211] Install a hydrogen-sensitive color-changing sensor mechanism, and collect the color signal on the hydrogen-sensitive color-changing tape 200 through an RGB photoelectric sensor 140. The sampling interval of the sensor is t = 0.5s. At this time, m = 7 and n = 5.

[0212] The color change information of the hydrogen-sensitive color-changing tape 200 is converted into a detection R value, a detection G value and a detection B value by the RGB photoelectric sensor 140, and the detection R value, the detection G value and the detection B value and a time signal are transmitted to the control module in real time;

[0213] The control module calculates according to the detection R value, the detection G value and the detection B value and the time signal, and finds that, after t time, in RGB, R0-R t = 0, G0-G t = 0, no hydrogen leakage.

[0214] Example 6

[0215] In this embodiment, the hydrogen-sensitive color-changing tape 200 is installed at the pipeline connection of the hydrogen supply parent station, and before the hydrogen-sensitive color-changing functional tape changes color (original time), R0=207, G0=228, B0=232, and at the same time, the color remains unchanged before leakage occurs; after complete color change, R=4, G=41, B=249;

[0216] The hydrogen-sensitive color-changing sensing mechanism is installed, and the color signal on the hydrogen-sensitive color-changing tape 200 is collected by the RGB photoelectric sensor 140, and the sampling interval of the sensor is t=0.5s, at this time, m=7, n=5;

[0217] The color change information of the hydrogen-sensitive color-changing tape 200 is converted into a detection R value, a detection G value and a detection B value by the RGB photoelectric sensor 140, and the detection R value, the detection G value and the detection B value and a time signal are transmitted to the control module in real time;

[0218] The control module calculates according to the detection R value, the detection G value and the detection B value and the time signal, and finds that, after t=1S time, in RGB, R0-R t = 14, G0-G t = 9, which satisfies R t0 -R t0+t > m or G t0 -G t0+t > n, it is confirmed that hydrogen leakage occurs, and a hydrogen leakage alarm signal is issued.

[0219] R RL and G RL are calculated, which are R RL = 9.3 and G RL = 0.67, respectively, and according to the data in Table 1 and Table 2, the hydrogen leakage risk level at this time is low risk, and the hydrogen scene operator should continue to track the risk level change, if the risk level remains basically unchanged, the original state can be maintained.

[0220] Example 7

[0221] In this embodiment, hydrogen-sensitive color-changing tape 200 is installed at the pipeline connection of the hydrogenation station. Before the color change of the hydrogen-sensitive color-changing functional tape (original time), R0=207, G0=228, and B0=232, and the colors remain unchanged before the leakage occurs. After complete color change, R=4, G=41, and B=249.

[0222] The hydrogen-sensitive color-changing sensing mechanism is installed, and the color signal on the hydrogen-sensitive color-changing tape 200 is collected by the RGB photoelectric sensor 140. The sampling interval of the sensor is t=1 s, m=4, and n=1.8. Due to the limited space (a+b=8 mm≤10 mm), a compact optical path 160 is installed at this position. Before installation, the overall size of the RGB photoelectric sensor 140 is reduced from 3 cm×2 cm×2 cm to 1.5 cm×1.5 cm×1 cm, and the volume is reduced by 81.25%.

[0223] The color change information of the hydrogen-sensitive color-changing tape 200 is converted into detection R value, detection G value, and detection B value by the RGB photoelectric sensor 140, and the detection R value, detection G value, detection B value, and time signal are transmitted to the control module in real time.

[0224] The control module calculates according to the detection R value, detection G value, and detection B value and time signal, and finds that R0-R t =0, G0-G t =0, and there is no hydrogen leakage.

[0225] Example 8

[0226] In this embodiment, hydrogen-sensitive color-changing tape 200 is installed at the pipeline connection of the hydrogenation station. Before the color change of the hydrogen-sensitive color-changing functional tape (original time), R0=207, G0=228, and B0=232, and the colors remain unchanged before the leakage occurs. After complete color change, R=4, G=41, and B=249.

[0227] The hydrogen-sensitive color-changing sensing mechanism is installed, and the color signal on the hydrogen-sensitive color-changing tape 200 is collected by the RGB photoelectric sensor 140. The sampling interval of the sensor is t=1 s, m=4, and n=1.8. Due to the limited space (a+b=8 mm≤10 mm), a compact optical path 160 is installed at this position. Before installation, the overall size of the RGB photoelectric sensor 140 is reduced from 3 cm×2 cm×2 cm to 1.5 cm×1.5 cm×1 cm, and the volume is reduced by 81.25%.

[0228] The color change information of the hydrogen-sensitive color-changing tape 200 is converted into detection R value, detection G value, and detection B value by the RGB photoelectric sensor 140, and the detection R value, detection G value, detection B value, and time signal are transmitted to the control module in real time.

[0229] The control module calculates according to the detection R value, the detection G value and the detection B value and the time signal, and finds that when t=1S, R0-R t =22, G0-G t =15 satisfy R t0 -R t0+t >m or G t0 -G t0+t >n, it is confirmed that the hydrogen leakage occurs, and a hydrogen leakage alarm signal is sent.

[0230] The RRL and GRL are calculated, and RRL=36.7 and GRL=25, respectively. According to the data in Table 1 and Table 2, the hydrogen leakage risk level is high at this time, and the hydrogen leakage site should be cut off from the hydrogen system as much as possible, and corresponding pressure relief and treatment measures should be taken to avoid further expansion of the hydrogen leakage.

[0231] The embodiment of the present application also provides a computer device, comprising a memory, a processor and a computer program, the computer program is stored in the memory and is configured to be executed by the processor to realize the hydrogen leakage detection method.

[0232] The embodiment of the present application also provides a machine readable storage medium, which stores computer program instructions, and the computer program instructions are executed by a processor to realize the hydrogen leakage detection method.

[0233] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system or a computer program product. Therefore, the present application can adopt a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present application can adopt a computer program product in the form of one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program codes. The solutions in the embodiments of the present application can be implemented in various computer languages, such as object-oriented programming language Java and interpreted scripting language JavaScript.

[0234] The present application is described with reference to flowcharts and / or block diagrams according to the method, device (system) and computer program product of the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device realize the functions in the flowcharts and / or block diagrams. Figure 1 one flow or multiple flows and / or blocksFigure 1 means for performing the function specified by the block or blocks.

[0235] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the flow Figure 1 flow or flows and / or blocks Figure 1 means for performing the function specified by the block or blocks.

[0236] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions that are executed on the computer or other programmable apparatus provide steps for implementing the flow Figure 1 flow or flows and / or blocks Figure 1 steps for performing the function specified by the block or blocks.

[0237] Although preferred embodiments of the application have been described herein, changes and modifications can be suggested to one skilled in the art, and it is intended that the scope of the application be limited only by the appended claims and equivalents thereof.

[0238] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A hydrogen gas leak detection system, characterized by, The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism.

2. The hydrogen gas leak detection system of claim 1, wherein, The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. 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The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. 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The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color-changing sensing mechanism. The application relates to a hydrogen-sensitive color-changing tape and a hydrogen-sensitive color 3. The hydrogen gas leak detection system of claim 2, wherein, The compact optical channel comprises a plurality of total reflection mirrors, angles of the total reflection mirrors are adjustable, and by adjusting the angles of the total reflection mirrors, light emitted by the light source assembly is vertically irradiated on the hydrogen-sensitive color-changing tape to increase an effective light irradiation area on the hydrogen-sensitive color-changing tape.

4. The hydrogen gas leak detection system of claim 2, wherein, The control module is specifically configured to determine whether hydrogen leakage occurs according to R, G and B values obtained by analyzing the RGB photosensor.

5. The hydrogen gas leak detection system of claim 4, wherein, Determining whether hydrogen leakage occurs according to R, G and B values obtained by analyzing the RGB photosensor includes: Obtaining initial R, G and B values of the hydrogen-sensitive color-changing tape at an initial moment; Collecting detection R, G and B values of the hydrogen-sensitive color-changing tape after a preset time period; Obtaining change R, G and B values according to the initial R, G and B values and the detection R, G and B values; Determining whether the change R value exceeds a first preset threshold, whether the change G value exceeds a second preset threshold or whether the change B value exceeds a third preset threshold; if yes, it is determined that hydrogen leakage occurs.

6. The hydrogen gas leak detection system of claim 4, wherein, The hydrogen leakage detection system further comprises an alarm module configured to calculate a risk level of hydrogen leakage when hydrogen leakage occurs, and perform an alarm action according to the risk level of hydrogen leakage.

7. The hydrogen gas leak detection system of claim 6, wherein, The calculation of the risk level of hydrogen leakage includes: Calculating an R value color-changing rate of the hydrogen-sensitive color-changing tape according to the change R value; Calculating a G value color-changing rate of the hydrogen-sensitive color-changing tape according to the change G value; Calculating a B value color-changing rate of the hydrogen-sensitive color-changing tape according to the change B value; Obtaining the risk level of hydrogen leakage according to the R, G and B value color-changing rates of the hydrogen-sensitive color-changing tape.

8. A hydrogen gas leak detection method characterized by, The method is applied to the hydrogen leakage detection system of any one of claims 1-7, and the method includes: Pasting the hydrogen-sensitive color-changing tape at a hydrogen pipeline connection; Installing the hydrogen-sensitive color-changing sensing mechanism, calculating a distance between the hydrogen-sensitive color-changing tape and the hydrogen-sensitive color-changing sensing mechanism, determining whether the distance between the hydrogen-sensitive color-changing tape and the hydrogen-sensitive color-changing sensing mechanism is less than a preset distance value, and if yes, installing the compact optical channel in the hydrogen-sensitive color-changing sensing mechanism; Real-time monitoring of the hydrogen-sensitive color-changing tape, collection of color signals of the hydrogen-sensitive color-changing tape, and conversion of the collected color signals into electrical signals; Determining whether hydrogen leakage occurs according to the electrical signals.

9. The hydrogen leakage detection method of claim 8, further comprising: When it is determined that hydrogen leakage occurs, calculating a risk level of hydrogen leakage; and Performing an alarm action according to the risk level of hydrogen leakage.

10. A computer device, comprising: including: a memory; a processor; and a computer program; wherein the computer program is stored in the memory and configured to be executed by the processor to implement the hydrogen leakage detection method of any one of claims 8-9. The computer program is executed by the processor to implement the hydrogen leakage detection method of any one of claims 8-9.

11. A computer readable storage medium having stored thereon a computer program, characterized in that, ​

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