Hydrogen detection device

Abstract

The utility model discloses a hydrogen detection device, and relates to the technical field of low-voltage electric appliances, and the hydrogen detection device comprises a hydrogen induction piece, a detection piece and a control piece. The hydrogen sensing piece is arranged at a position to be detected, and the color and / or shape of the hydrogen sensing piece changes along with the change of the hydrogen concentration on the peripheral side of the position to be detected. The detection part and the hydrogen induction part are arranged in a propping manner or at an interval, and the detection part is used for detecting the color and / or shape of the hydrogen induction part and producing a detection signal. The control part is connected with the detection part, and the control part is used for receiving the detection signal detected by the detection part and determining the current hydrogen concentration of the to-be-detected position according to the detection signal. The method has the advantages that the anti-interference capability is higher, and more accurate dynamic concentration monitoring can be carried out on the hydrogen concentration near the to-be-detected position.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a hydrogen detection device. Background Art

[0002] In the relevant technical field, with the development of industry and the increasing demand for energy by workers, hydrogen, as a clean and efficient energy source, is increasingly widely used. However, hydrogen is a colorless, odorless, flammable and explosive gas, and its leakage may lead to serious safety accidents.

[0003] Therefore, the development and application of hydrogen detection devices are particularly important. Existing hydrogen sensors can be semiconductor sensors or thermoelectric sensors.

[0004] However, semiconductor sensors or thermoelectric sensors are susceptible to interference from the external environment. Utility Model Content

[0005] The present application provides a hydrogen detection device, which can have a stronger anti-interference ability of the hydrogen detection device and can perform more accurate dynamic concentration monitoring of the hydrogen concentration near the position to be detected.

[0006] The present application provides a hydrogen detection device, which includes a hydrogen sensing element, a detection element, and a control element.

[0007] The hydrogen sensing element is arranged at the position to be measured, and as the hydrogen concentration around the position to be measured changes, the color and / or shape of the hydrogen sensing element changes accordingly.

[0008] The detection element is abutted against or spaced from the hydrogen sensing element, and the detection element is used to detect the color and / or shape of the hydrogen sensing element and generate a detection signal.

[0009] The control component is connected to the detection component, and is used to receive the detection signal detected by the detection component, and determine the current hydrogen concentration of the position to be detected according to the detection signal.

[0010] The method of setting the hydrogen sensor at the position to be tested and cooperating with the detection element for indirect detection has higher stability and can reduce the interference of the external environment on the test results. In addition, the hydrogen sensor is based on the special chemical reaction or physical property change on the surface of the hydrogen sensor, so as to achieve an intuitive reflection of the hydrogen concentration. The detection process is only a physical observation, and the hydrogen concentration detection process does not involve the transmission of the point signal, so it is more resistant to interference. Since the hydrogen sensor is set at the position where the hydrogen concentration needs to be monitored, the color and / or shape of the hydrogen sensor will change in real time at different concentrations, so a more accurate dynamic concentration monitoring of the hydrogen concentration near the position to be tested can be performed.

[0011] Therefore, the hydrogen detection device of the present application has a stronger anti-interference capability and can perform more accurate dynamic concentration monitoring of the hydrogen concentration near the location to be measured.

[0012] In some examples, the hydrogen sensing element is a hydrogen chromic film or a hydrogen chromic coating, and the hydrogen sensing element can change color as the hydrogen concentration changes.

[0013] The detection element includes an optical sensor for capturing and identifying the color change of the hydrogen sensing element.

[0014] The combination of hydrogen-induced color-changing film and optical sensor can not only sense the changes in hydrogen concentration in real time, but also intuitively display the presence or absence of hydrogen through color changes, greatly improving the efficiency and accuracy of hydrogen detection.

[0015] In some examples, the hydrogen sensing element is a multi-layer structure, including a support layer and a color-changing reaction layer, the support layer is arranged at a position to be measured, and the color-changing reaction layer is arranged on a side of the support layer away from the position to be measured.

[0016] The color-changing reaction layer can change color as the concentration of hydrogen changes, and the support layer is used to support and protect the color-changing reaction layer.

[0017] Based on the above example of the present application, the hydrogen sensing element adopts a multi-layer structure, combining a support layer and a color-changing reaction layer. The support layer is placed at the position to be measured, and the color-changing reaction layer is located on the other side of the support layer, and the support layer and the color-changing reaction layer form a back-to-back relationship. This arrangement not only optimizes the structure of the hydrogen sensing element, but also improves its working efficiency and reliability.

[0018] In some examples, the hydrogen sensing element further includes a catalytic layer, the catalytic layer covers the color-changing reaction layer, and the catalytic layer can increase the reaction rate of the color-changing reaction layer and the hydrogen.

[0019] Based on the above examples of the present application, in order to further enhance the performance of the hydrogen sensing element, such as making the hydrogen sensing element have higher sensitivity, faster response and longer-term stability, and increase the adaptability of the hydrogen sensing element, such as environmental monitoring, industrial safety, energy storage and other applications, a catalytic layer is introduced to enhance the reaction speed of the color-changing reaction layer and hydrogen.

[0020] In some examples, the hydrogen sensing element further includes a protective layer, which is disposed on a side of the catalytic layer away from the color-changing reaction layer, and hydrogen can pass through the protective layer.

[0021] Based on the above examples of this application, this multi-layered hydrogen sensing component can be composed of a support layer, a color-changing reaction layer, a catalytic layer, and a protective layer. The support layer, as the basis of the entire hydrogen sensing component, provides a stable structural support to ensure the mechanical strength and stability of the hydrogen sensing component. The color-changing reaction layer is the core part of the hydrogen sensing component. When hydrogen comes into contact with the reaction layer, it triggers a specific chemical reaction, resulting in a color change, thereby realizing the detection of hydrogen.

[0022] The protective layer is located on the side of the catalytic layer away from the color change reaction layer, which can effectively prevent the hydrogen sensor from being disturbed and damaged by the external environment. At the same time, the protective layer also allows hydrogen to pass through, ensuring the sensitivity and accuracy of the hydrogen sensor to hydrogen. This setting not only improves the durability of the hydrogen sensor, but also extends the service life of the hydrogen sensor.

[0023] In some examples, the hydrogen sensing component is a hydrogen-induced deformable film or a hydrogen-induced deformable coating, and the hydrogen sensing component can change shape as the concentration of hydrogen changes.

[0024] The detection element includes a shape sensor for capturing and identifying shape changes of the hydrogen sensing element.

[0025] In some examples, the hydrogen detection device further includes an alarm component, which is connected to the control component. When the control component determines that the hydrogen concentration at the position to be detected exceeds a preset safety threshold, the alarm component is triggered to send an alarm signal.

[0026] In some examples, the alarm component includes at least one of a sound alarm, a light alarm, or a vibration alarm, and when the hydrogen concentration exceeds a safety threshold, the alarm component issues a sound alarm.

[0027] In some examples, the hydrogen detection device further includes a display screen, which is connected to the control component and is used to display a hydrogen concentration value.

[0028] In some examples, the hydrogen detection device further includes a communication module, which is connected to the control component and is used to remotely transmit hydrogen concentration data or an alarm signal of an alarm component to a monitoring center or a mobile device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the examples or prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some examples of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1A structural schematic diagram of a hydrogen detection device in an example of the present application;

[0031] Figure 2 A schematic diagram of the structure of a hydrogen sensor in an example of the present application;

[0032] Figure 3 Another structural schematic diagram of a hydrogen sensor in an example of the present application;

[0033] Figure 4 Another structural schematic diagram of a hydrogen sensor in an example of the present application;

[0034] Figure 5 Another structural schematic diagram of a hydrogen sensor in an example of the present application;

[0035] Figure 6 Another structural schematic diagram of a hydrogen sensor in an example of the present application;

[0036] Figure 7 This is another structural schematic diagram of a hydrogen detection device in an example of the present application;

[0037] Figure 8 This is another structural schematic diagram of a hydrogen detection device in an example of the present application;

[0038] Fig. 9 This is another structural schematic diagram of a hydrogen detection device in an example of the present application.

[0039] Reference numerals:

[0040] 100, hydrogen sensing element; 110, supporting layer; 120, color change reaction layer; 130, catalytic layer; 140, protective layer; 200, detection element; 300, control element; 400, alarm element; 500, display screen; 600, communication module; 610, first signal transmitter; 620, second signal transmitter; 700, position to be measured. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0042] In the related art hydrogen detection device, with the development of industry and the increasing demand for energy by workers, hydrogen, as a clean and efficient energy source, is increasingly widely used. However, hydrogen is a colorless, odorless, flammable and explosive gas, and its leakage may lead to serious safety accidents.

[0043] Therefore, the development and application of hydrogen detection devices are particularly important. Existing hydrogen sensors can be semiconductor sensors or thermoelectric sensors. However, semiconductor sensors or thermoelectric sensors are susceptible to interference from the external environment.

[0044] About semiconductor sensors:

[0045] Taking the resistive semiconductor sensor as an example, the resistive semiconductor sensor mainly uses metal oxides such as SnO2, ZnO, WO3 as gas sensitive materials, so it is also called metal oxide semiconductor hydrogen sensor.

[0046] Its working principle is: after hydrogen is adsorbed, hydrogen releases electrons as a donor and combines with oxygen ions in the chemical adsorption layer, so the carrier concentration changes, and the change value has a certain functional relationship with the hydrogen gas volume fraction.

[0047] However, it has problems such as unstable temperature characteristics, susceptibility to interference, and is not suitable for measuring complex environments.

[0048] Semiconductor sensors use semiconductor materials, whose resistivity and temperature are inversely proportional, that is, the resistivity decreases when the temperature increases, and increases when the temperature decreases. Therefore, temperature compensation is required in actual use. However, since temperature compensation is related to the characteristics of semiconductor materials, the accuracy and stability of temperature compensation are difficult to guarantee and are easily affected by changes in ambient temperature, thus affecting the accuracy and stability of the sensor.

[0049] Semiconductor sensors are highly sensitive and are very sensitive to external environmental influences. They are easily interfered by electromagnetic fields, radiation, electrical equipment, etc., which can cause deviation or distortion of sensor output signals. Such interference may come from many aspects such as surrounding electronic equipment, power lines, industrial or traffic signals, etc. In severe cases, the sensor may not work properly.

[0050] Semiconductor sensors have high sensitivity, but at the same time they are overly sensitive to the external environment, making it difficult to adapt to complex and changing environments. For example, when measuring the concentration of chemical substances, semiconductor sensors are easily interfered by other gas molecules in the surrounding environment, resulting in large errors.

[0051] In addition, the stability and accuracy of semiconductor sensors will also be affected when testing in complex environments such as relatively humid environments or environments containing dust and dew.

[0052] About Pyroelectric Sensors:

[0053] First, a layer of thermoelectric material is deposited on the substrate. Then, a layer of catalytic metal, such as Pt, PD, etc., is deposited on a certain part of the surface of the thermoelectric material. Finally, electrodes are drawn out on the catalytic metal layer and the thermoelectric film layer (there is no catalytic metal on the surface) respectively to obtain the simplest thermoelectric hydrogen sensitive element.

[0054] When this sensitive element is exposed to a hydrogen-containing environment, under the action of the catalytic metal, hydrogen reacts with oxygen to generate water vapor and release heat. Therefore, the end where the catalytic metal is deposited has a high temperature, which is the hot end, and the end without the catalytic metal has a low temperature, which is the cold end.

[0055] Due to the thermoelectric effect (Seebeck effect) of thermoelectric materials, the temperature difference between the hot end and the cold end is converted into a thermoelectric potential, which is output in the form of a detection signal, thereby realizing the detection of hydrogen. However, the sensitivity of thermoelectric sensors is lower than that of thermistors, and the static characteristics of thermoelectric sensors are poor, and they are easily disturbed by factors such as mechanical vibration; compared with other sensors, thermoelectric sensors are more expensive.

[0056] Therefore, semiconductor sensors or thermoelectric sensors have major defects, such as being easily affected by external environmental interference.

[0057] To solve the above technical problems, please refer to Figure 1-Figure 9 As shown, the present application proposes a hydrogen detection device that has a stronger anti-interference ability and can perform more accurate dynamic concentration monitoring of the hydrogen concentration near the detection position 700.

[0058] Reference Figure 1 and Figure 2 In some examples, the hydrogen detection device includes a hydrogen sensing component 100 , a detection component 200 , and a control component 300 .

[0059] The hydrogen sensing element 100 is disposed at the position to be measured 700 , and as the hydrogen concentration around the position to be measured 700 changes, the color and / or shape of the hydrogen sensing element 100 changes accordingly.

[0060] The detection element 200 is disposed in contact with or spaced apart from the hydrogen sensing element 100 . The detection element 200 is used to detect the color and / or shape of the hydrogen sensing element 100 and generate a detection signal.

[0061] The control component 300 is connected to the detection component 200 , and is used to receive a detection signal detected by the detection component 200 , and determine a current hydrogen concentration at the position to be detected 700 according to the detection signal.

[0062] The hydrogen sensing element 100 is the core component of the device and can be set at the location where the hydrogen concentration needs to be monitored. When the hydrogen concentration at the location to be measured 700 changes, the hydrogen sensing element 100 can respond quickly, and its color and / or shape will change accordingly. This change is based on the special chemical reaction or physical property change on the surface of the hydrogen sensing element 100, thereby achieving an intuitive reflection of the hydrogen concentration.

[0063] The detection member 200 is arranged in contact with or spaced from the hydrogen sensing member 100. The main function of the detection member 200 is to detect the color and / or shape changes of the hydrogen sensing member 100 and convert these changes into detection signals. These detection signals are then transmitted to the control member 300 for processing. The setting of the detection member 200 takes into account factors such as sensitivity, response speed and stability to ensure that the changes of the hydrogen sensing member 100 can be accurately captured.

[0064] The control unit 300 is responsible for receiving the detection signals from the detection unit 200, and determining the current hydrogen concentration of the position to be tested 700 according to these detection signals. The control unit 300 may be integrated with complex algorithms and software to analyze, calculate and judge the detection signals, thereby obtaining an accurate hydrogen concentration value. In addition, the control unit 300 may also display the concentration value in the form of numbers, charts, etc., so that the user can monitor and record it conveniently.

[0065] The method of setting the hydrogen sensing element 100 at the position to be tested 700 and cooperating with the detection element 200 for indirect detection has higher stability and can reduce the interference of the external environment on the detection results. In addition, the hydrogen sensing element 100 is based on the special chemical reaction or physical property change on the surface of the hydrogen sensing element 100, so as to achieve an intuitive reflection of the hydrogen concentration. The detection process is only a physical observation, and the hydrogen concentration detection process does not involve the transmission of the point signal, so it is more resistant to interference. Since the hydrogen sensing element 100 is set at the position where the hydrogen concentration needs to be monitored, the color and / or shape of the hydrogen sensing element 100 will change in real time at different concentrations, so a more accurate dynamic concentration monitoring of the hydrogen concentration near the position to be tested 700 can be performed.

[0066] Therefore, the hydrogen detection device of the present application has a stronger anti-interference capability and can perform more accurate dynamic concentration monitoring of the hydrogen concentration near the position 700 to be measured.

[0067] In some examples, the hydrogen sensing element 100 is a hydrogen-chromic film or a hydrogen-chromic coating, and the hydrogen sensing element 100 can change color as the hydrogen concentration changes.

[0068] The detection element 200 includes an optical sensor for capturing and identifying the color change of the hydrogen sensing element 100. The optical sensor can identify the color by the color wavelength. The optical sensor can also be a color sensor that directly identifies the color. The color sensor can identify the color change of the hydrogen sensing element 100 and convert the color information into a detection signal output.

[0069] The combination of hydrogen-induced color-changing film and optical sensor can not only sense the changes in hydrogen concentration in real time, but also intuitively display the presence or absence of hydrogen through color changes, greatly improving the efficiency and accuracy of hydrogen detection.

[0070] Hydrochromic film is a special material that can change color (and also change transparency) under the action of hydrogen. This change is closely related to the concentration of hydrogen. Therefore, by observing the color change of the film, the concentration of hydrogen can be accurately determined. This hydrogenchromic film can have the advantages of high sensitivity, fast response speed, and good reversibility.

[0071] Optical sensors are key devices for capturing and identifying this color change. Optical sensors can accurately sense the color change of hydrogen-induced chromic films by identifying color wavelengths and convert this change into a detection signal output. Optical sensors are highly sensitive and accurate and can achieve precise measurement of hydrogen concentration.

[0072] In addition to color sensors, optical sensors can also use other types of sensors, such as spectral sensors, interference sensors, etc. These sensors can accurately measure the color change of the hydrogen sensing element 100 by capturing and analyzing light. The above sensors each have their own advantages and can be selected according to specific application scenarios and needs.

[0073] The combination of hydrogen-induced color-changing film and optical sensor has brought great convenience to hydrogen detection. For example, in the monitoring of hydrogen leakage, this combination can sense the concentration change of hydrogen in real time and intuitively show the location and extent of the leakage through the change of color. This can not only improve the efficiency of leakage treatment, but also reduce the safety hazards caused by leakage.

[0074] The combination of hydrogen-induced chromic film and optical sensor can be applied to other fields, such as hydrogen storage and transportation, hydrogen fuel cells, etc. In these fields, this combination can achieve accurate measurement and monitoring of hydrogen concentration, providing strong support for the development of related fields.

[0075] The hydrogen-chromic film may also be replaced by a hydrogen-chromic coating, which may be coated on the corresponding position to be measured 700 in the form of a coating. The materials of the hydrogen-chromic film and the hydrogen-chromic coating may be the same or similar, but the setting methods are different.

[0076] In some examples, the hydrogen sensing element 100 is a multi-layer structure, including a support layer 110 and a color-changing reaction layer 120 . The support layer 110 is disposed at the position to be measured 700 , and the color-changing reaction layer 120 is disposed on a side of the support layer 110 away from the position to be measured 700 .

[0077] The color-changing reaction layer 120 can change color as the concentration of hydrogen changes, and the support layer 110 is used to support and protect the color-changing reaction layer 120 .

[0078] Based on the above example of the present application, the hydrogen sensing element 100 adopts a multi-layer structure, combining a support layer 110 and a color-changing reaction layer 120. The support layer 110 is placed at the position to be measured 700, and the color-changing reaction layer 120 is located on the other side of the support layer 110, and the support layer and the color-changing reaction layer 120 form a back-to-back relationship. This arrangement not only optimizes the structure of the hydrogen sensing element 100, but also improves its working efficiency and reliability.

[0079] The color-changing reaction layer 120 is the core component of the hydrogen sensing element 100. Its unique property is that it can change color accordingly with the change of hydrogen concentration. When the hydrogen concentration increases, the color-changing reaction layer 120 will quickly capture this change and intuitively reflect the hydrogen concentration level through the change of color depth or hue. This intuitive display method can quickly and accurately understand the change of hydrogen concentration, so as to take corresponding measures.

[0080] The support layer 110 in the hydrogen sensing element 100 not only provides stable support for the color-changing reaction layer 120 to prevent displacement or deformation during operation, but also protects the color-changing reaction layer 120. The support layer 110 can be made of a strong and durable material that can withstand various environmental factors, such as high temperature, low temperature, humidity, etc. This excellent durability ensures that the hydrogen sensing element 100 can maintain stable performance under various harsh conditions and provide users with accurate and reliable hydrogen concentration data.

[0081] In some examples, the hydrogen sensing element 100 further includes a catalytic layer 130 , which covers the color-changing reaction layer 120 . The catalytic layer 130 can increase the reaction speed between the color-changing reaction layer 120 and hydrogen.

[0082] Based on the above examples of the present application, in order to further enhance the performance of the hydrogen sensing element 100, such as making the hydrogen sensing element 100 have higher sensitivity, faster response and longer-term stability, and increase the adaptability of the hydrogen sensing element 100, such as applications in environmental monitoring, industrial safety, energy storage, etc., the catalytic layer 130 is introduced to enhance the reaction speed of the color-changing reaction layer 120 and hydrogen.

[0083] The multi-layered hydrogen sensing element 100 may be composed of a support layer 110, a color-changing reaction layer 120, and a catalytic layer 130. The support layer 110 provides a stable substrate for the entire hydrogen sensing element 100, ensuring the mechanical strength and durability of the hydrogen sensing element 100 in practical applications. The color-changing reaction layer 120 is the core part of the hydrogen sensing element 100, which contains active substances that can reversibly react with hydrogen. When hydrogen comes into contact with these active substances, a color-changing reaction will occur, and different hydrogen concentrations will show different colors, thereby realizing the detection of hydrogen.

[0084] The catalyst in the catalytic layer 130 can reduce the activation energy of the reaction between hydrogen and the active substance in the color-changing reaction layer 120, thereby accelerating the reaction speed. This means that in the same time, the catalytic layer 130 can cause more hydrogen to react reversibly with the active substance, thereby improving the sensitivity and response speed of the hydrogen sensor 100.

[0085] The selection and setting of the catalyst layer 130 is crucial to the performance of the hydrogen sensor 100. Different catalysts may have very different catalytic effects on hydrogen, so it is necessary to select a suitable catalyst according to actual application requirements. In addition, factors such as the thickness, uniformity and stability of the catalyst layer 130 will also affect the performance of the hydrogen sensor 100.

[0086] Therefore, the multi-layered hydrogen sensing element 100 can effectively increase the reaction speed between the color-changing reaction layer 120 and hydrogen by introducing the catalytic layer 130 , thereby enhancing the sensitivity and response speed of the hydrogen sensing element 100 .

[0087] In some examples, the hydrogen sensing element 100 is a multi-layer structure, including a support layer 110 and a color-changing reaction layer 120 . The hydrogen sensing element 100 further includes a protective layer 140 . The protective layer 140 is disposed on a side of the catalytic layer 130 away from the color-changing reaction layer 120 . Hydrogen can pass through the protective layer 140 .

[0088] Based on the above examples of the present application, the multi-layered hydrogen sensing component 100 may be composed of a support layer 110, a color-changing reaction layer 120, a catalytic layer 130, and a protective layer 140. The support layer 110, as the basis of the entire hydrogen sensing component 100, provides a stable structural support, ensuring the mechanical strength and stability of the hydrogen sensing component 100. The color-changing reaction layer 120 is the core part of the hydrogen sensing component 100. When hydrogen contacts the reaction layer, a specific chemical reaction is triggered, resulting in a color change, thereby realizing the detection of hydrogen.

[0089] The protective layer 140 is located on the side of the catalytic layer 130 away from the color change reaction layer 120, which can effectively prevent the hydrogen sensing element 100 from being disturbed and damaged by the external environment. At the same time, the protective layer 140 also allows hydrogen to pass through, ensuring the sensitivity and accuracy of the hydrogen sensing element 100 to hydrogen. This arrangement not only improves the durability of the hydrogen sensing element 100, but also extends the service life of the hydrogen sensing element 100.

[0090] Based on the above configuration, the hydrogen sensing component 100 with a multi-layer structure has significant advantages in practical applications. First, its high sensitivity and accuracy enable the hydrogen sensing component 100 to achieve rapid response in a low-concentration hydrogen environment, providing a strong guarantee for safety monitoring. Second, the introduction of the protective layer 140 enhances the anti-interference ability of the hydrogen sensing component 100, allowing it to maintain stable performance even in harsh environments. In addition, the multi-layer structure also enables the hydrogen sensing component 100 to have higher reliability and stability, reducing the frequency and cost of maintenance and replacement.

[0091] The multi-layered hydrogen sensing element 100 may also be composed of a support layer 110 , a color-changing reaction layer 120 and a protective layer 140 as required.

[0092] In some examples, the hydrogen sensing element 100 is a hydrogen-induced deformable film or a hydrogen-induced deformable coating, and the hydrogen sensing element 100 can change shape as the hydrogen concentration changes.

[0093] The detection element 200 includes a shape sensor for capturing and identifying the shape change of the hydrogen sensing element 100 .

[0094] Based on the above examples of the present application, the hydrogen sensing element 100 can change in shape as the hydrogen concentration changes. This shape change is not random, but shows a certain regularity and sensitivity with the change of hydrogen concentration.

[0095] The reason why the hydrogen-induced deformable film or coating can achieve this function is that there is a specific interaction between its internal structure and hydrogen molecules. When hydrogen molecules come into contact with the hydrogen sensing component 100, the hydrogen molecules react with certain atoms or molecules inside the hydrogen sensing component 100, causing the structure of the hydrogen sensing component 100 to change. This structural change further causes the overall shape of the hydrogen sensing component 100 to change. For example, some metal hydrides or hydrogen storage alloys (such as LaNi5) can reversibly absorb and release hydrogen. With the adsorption of hydrogen, these materials will expand in volume, thereby showing a "change" in shape on a macro scale.

[0096] In order to capture and identify this shape change, a shape sensor is provided. A shape sensor is a device that can accurately sense and measure the shape change of an object. The shape sensor can monitor the shape change of the hydrogen sensing element 100 in real time and convert it into a processable detection signal or other form of output. In this way, the change in hydrogen concentration can be inferred by analyzing and interpreting these output signals.

[0097] In specific practice, the hydrogen sensing element 100 can be combined with a shape sensor to form a complete hydrogen detection system. When the hydrogen concentration changes, the hydrogen sensing element 100 will immediately change its shape, and this change will be captured by the shape sensor and converted into a detection signal. By analyzing and processing these detection signals, real-time data of hydrogen concentration can be accurately obtained, thereby providing important reference and basis.

[0098] In some examples, the hydrogen detection device further includes an alarm component 400, which is connected to the control component 300. When the control component 300 determines that the hydrogen concentration at the test position 700 exceeds a preset safety threshold, the alarm component 400 is triggered to send an alarm signal.

[0099] Based on the above example of the present application, the setting of the hydrogen detection device can ensure the safety of the corresponding position to be tested 700, and cooperate with the alarm component 400 to send out an alarm signal when the hydrogen concentration exceeds a preset safety threshold.

[0100] The hydrogen sensing element 100 is responsible for detecting the hydrogen concentration in the environment, and the detection element 200 can detect the hydrogen sensing element 100 in real time and convert the detection information into a detection signal and transmit it to the control element 300. The control element 300 determines whether the hydrogen concentration exceeds the preset safety threshold based on the received detection signal. If the concentration exceeds the standard, the control element 300 will trigger the alarm element 400 to send an alarm signal so as to promptly remind personnel to take countermeasures.

[0101] The alarm 400 is used to send out an alarm signal in the form of sound, light, vibration, etc. when the hydrogen concentration exceeds the standard, so that personnel can promptly discover and deal with potential safety hazards. The timeliness and accuracy of the alarm signal are crucial to ensure the safety of the workplace corresponding to the position to be tested 700.

[0102] In conclusion, the hydrogen detection device equipped with the alarm element 400 is of great significance for ensuring the safety of the workplace. Through the coordinated action of the sensor, the control element 300 and the alarm element 400, the device can send out an alarm signal in time when the hydrogen concentration exceeds the standard, reminding personnel to take countermeasures.

[0103] In order to ensure the accuracy and reliability of the hydrogen detection device, the hydrogen detection device can also be calibrated and maintained regularly to ensure that it is in good working condition.

[0104] In some examples, the alarm component 400 includes at least one of a sound alarm, a light alarm, or a vibration alarm, and when the hydrogen concentration exceeds a safety threshold, the alarm component 400 issues a sound alarm.

[0105] Based on the above examples of the present application, the alarm 400 can sound an alarm when the hydrogen concentration exceeds the safety threshold. Depending on the actual application scenario, the settings of the alarm 400 also present diverse characteristics. The following will introduce in detail the three common types of alarms 400, namely, sound alarms, light alarms and vibration alarms.

[0106] The most widely used alarm device is the sound alarm. When the hydrogen concentration exceeds the preset safety threshold, the sound alarm will emit a high-decibel alarm to remind personnel to take prompt countermeasures. This alarm can be installed in a conspicuous position, and its alarm sound has sufficient penetration to attract the attention of personnel even in a noisy environment.

[0107] Light alarms are suitable for situations where visual prompts are required. When the hydrogen concentration exceeds the standard, the light alarm will emit a flashing or constant light signal. This alarm is particularly suitable for environments with dim light or working at night, and can alert workers through changes in light signals.

[0108] The vibration alarm is a kind of alarm device suitable for specific occasions. For example, in an environment with loud noise or insufficient light, the sound and light alarm may not be able to play an effective alarm role. At this time, the vibration alarm comes in handy. When the hydrogen concentration exceeds the standard, the vibration alarm will generate strong vibrations to remind people to pay attention to safety through tactile sensation.

[0109] In addition to the three common types of alarm components mentioned above, there are some more advanced alarm systems that use a combination of multiple alarm methods, such as sound plus light, sound plus vibration, etc., to improve the reliability and timeliness of the alarm.

[0110] In some examples, the hydrogen detection device further includes a display screen 500 , which is connected to the control component 300 and is used to display the hydrogen concentration value.

[0111] Based on the above example of the present application, the hydrogen detection device is not only a simple sensor, but also equipped with a display screen 500, which is closely connected to the control unit 300 to display the hydrogen concentration value in real time. This setting allows the user to intuitively understand the hydrogen concentration in the environment, so as to take corresponding safety measures in time.

[0112] The presence of the display screen 500 not only enhances the functionality of the hydrogen detection device, but also improves its usability. Through the display screen 500, the user can directly read the value of the hydrogen concentration without additional tools or equipment. This is undoubtedly a great convenience for users who need to quickly and accurately detect the hydrogen concentration in different environments.

[0113] In addition to displaying the hydrogen concentration value, the hydrogen detection device can also provide other useful information through the display screen 500. For example, it can display the working status of the detection device, the battery power, the alarm threshold, etc.

[0114] In short, the display screen 500 can make the hydrogen detection device more intelligent and user-friendly. The display screen 500 not only improves the detection efficiency, but also enhances the user experience.

[0115] In some examples, the hydrogen detection device further includes a communication module 600 , which is connected to the control element 300 , and is used to remotely transmit hydrogen concentration data or an alarm signal of the alarm element 400 to a monitoring center or a mobile device.

[0116] Based on the above example of the present application, when the hydrogen concentration exceeds the preset safety range, the control element 300 triggers an alarm mechanism and sends an alarm signal to a monitoring center or a mobile device through the communication module 600. The communication module 600 may include a first signal transmitter 610 electrically connected to the control element 300 and a second signal transmitter 620 electrically connected to the display screen 500.

[0117] As an important component of the hydrogen detection device, the performance of the communication module 600 directly affects the transmission quality and speed of the alarm signal. A common communication method is to use wireless communication technology, such as LoRa, NB-IoT, etc. These technologies have the advantages of long transmission distance, low power consumption, and high stability, and are very suitable for remote communication of hydrogen detection devices. In addition, some high-end devices also support wired communication methods, such as Ethernet, to meet the needs of faster and more stable data transmission. Among them, LoRa (Long Range) is a low-power wide area network communication protocol designed to achieve long-distance, low-power wireless communication. It uses spread spectrum modulation technology to expand the signal to a wider frequency band, thereby improving the signal's anti-interference ability and transmission distance. NB-IoT (Narrow Band Internet of Things) is also a wired communication technology that has attracted much attention. NB-IoT is a narrowband Internet of Things technology based on cellular networks, with the characteristics of wide coverage, multiple connections, low rate, and low power consumption.

[0118] In addition to the selection of the communication method, the communication module 600 also needs to have a high degree of reliability and stability. In a harsh industrial environment, the communication module 600 may be affected by factors such as electromagnetic interference and high temperature, resulting in signal transmission interruption or data loss. Therefore, these factors need to be fully considered during the setting, and corresponding protective measures such as electromagnetic shielding and heat dissipation settings need to be taken to ensure that the communication module 600 can work stably in various environments.

[0119] The hydrogen detection device further includes a calibration module for regularly calibrating the sensitivity and color / shape variation range of the hydrogen sensing element 100 to ensure detection accuracy.

[0120] The sensitivity and color / shape variation range of the hydrogen sensing element 100 are key factors in determining the accuracy of detection. As time goes by, the hydrogen sensing element 100 may be affected by various factors such as environmental factors and frequency of use, causing its sensitivity and color / shape variation range to change. Therefore, it is very important to calibrate the hydrogen sensing element 100 regularly. The calibration module accurately calibrates the hydrogen sensing element 100 automatically or manually to ensure that it always maintains the best working condition. This regular calibration practice not only helps to improve the accuracy of detection, but also prolongs the service life of the hydrogen sensing element 100.

[0121] In addition to the calibration module, a dustproof mechanism may also be provided. Since the hydrogen detection device may need to be used in various environments, including outdoors, factory workshops, etc., there are often a lot of dust and pollutants in these environments. If dust and pollutants enter the interior of the device, the dust and pollutants may adhere to the hydrogen sensor 100 and affect its normal operation. Therefore, the provision of a dustproof mechanism becomes crucial. The dustproof mechanism may include components such as a dust cover and a sealing gasket, which can effectively prevent dust and pollutants from entering the interior of the device, thereby ensuring the cleanliness and normal operation of the hydrogen sensor 100.

[0122] A database of the correspondence between hydrogen concentration and color can be built into the control element 300 as needed, so as to determine the hydrogen concentration according to the received color information. The interval between the hydrogen sensing element 100 and the detection element 200 is adjustable to adapt to different application scenarios and detection requirements. The hydrogen detection device also includes a user interface, which allows the user to adjust the interval between the hydrogen sensing element 100 and the detection element 200 as needed, and set the safety threshold and alarm mode. The user interface includes a touch screen, a button or a wireless remote control, etc., so that the user can easily set and operate.

[0123] The same or similar numbers in the drawings of this application correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0124] The above are only preferred examples of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A hydrogen detection device, It is characterized in that The hydrogen detection device comprises: A hydrogen sensing element is arranged at a position to be measured, and as the hydrogen concentration around the position to be measured changes, the color and / or shape of the hydrogen sensing element changes accordingly; A detection member, which is disposed in contact with or spaced apart from the hydrogen sensing member, and is used to detect the color and / or shape of the hydrogen sensing member and generate a detection signal; A control component is connected to the detection component, and is used to receive the detection signal detected by the detection component, and determine the current hydrogen concentration of the position to be detected according to the detection signal.

2. The hydrogen gas detection device according to claim 1, It is characterized in that The hydrogen sensing element is a hydrogen-induced color-changing film or a hydrogen-induced color-changing coating, and the hydrogen sensing element can change color as the hydrogen concentration changes; The detection element includes an optical sensor for capturing and identifying the color change of the hydrogen sensing element.

3. The hydrogen detection device according to claim 2, It is characterized in that The hydrogen sensing element is a multi-layer structure, including a support layer and a color-changing reaction layer, wherein the support layer is arranged at a position to be measured, and the color-changing reaction layer is arranged at a side of the support layer away from the position to be measured; The color-changing reaction layer can change color as the concentration of hydrogen changes, and the support layer is used to support and protect the color-changing reaction layer.

4. The hydrogen gas detection device according to claim 3, It is characterized in that The hydrogen sensing element further comprises a catalytic layer, wherein the catalytic layer covers the color-changing reaction layer, and the catalytic layer can increase the reaction speed between the color-changing reaction layer and hydrogen.

5. The hydrogen detection device according to claim 4, It is characterized in that The hydrogen sensing element further comprises a protective layer, which is arranged on a side of the catalytic layer away from the color-changing reaction layer, and hydrogen can pass through the protective layer.

6. The hydrogen gas detection device according to claim 1, It is characterized in that The hydrogen sensing element is a hydrogen-induced deformable film or a hydrogen-induced deformable coating, and the hydrogen sensing element can change shape as the hydrogen concentration changes; The detection element includes a shape sensor for capturing and identifying shape changes of the hydrogen sensing element.

7. The hydrogen gas detection device according to claim 1, It is characterized in that The hydrogen detection device further comprises an alarm component, which is connected to the control component. When the control component determines that the hydrogen concentration at the position to be detected exceeds a preset safety threshold, the alarm component is triggered to send an alarm signal.

8. The hydrogen gas detection device according to claim 7, It is characterized in that The alarm component includes at least one of a sound alarm, a light alarm or a vibration alarm. When the hydrogen concentration exceeds a safety threshold, the alarm component emits a sound alarm.

9. The hydrogen gas detection device according to claim 1, It is characterized in that The hydrogen detection device also includes a display screen, which is connected to the control component and is used to display the hydrogen concentration value.

10. The hydrogen gas detection device according to claim 1, It is characterized in that The hydrogen detection device further comprises a communication module, which is connected to the control component and is used for remotely transmitting hydrogen concentration data or an alarm signal of an alarm component to a monitoring center or a mobile device.

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