Alarm system for detecting hydrogen leakage

Abstract

The utility model relates to the technical field of hydrogen preparation, and discloses an alarm system for detecting hydrogen leakage, which comprises a display control terminal, a moving trolley, a rotating base, a hydrogen detector, a positioning chip and an alarm, a gas inlet port of the hydrogen detector is respectively connected with a first gas inlet pipe and a second gas inlet pipe, the positioning chip is arranged on the moving trolley, the display control terminal is in signal connection with the hydrogen detector, the positioning chip and the alarm, and the display control terminal is used for acquiring the hydrogen concentration detected by the hydrogen detector and controlling the alarm based on a set concentration threshold value. When the hydrogen concentration detected by the hydrogen detector exceeds a set concentration threshold value, the display control terminal obtains a position signal collected by the positioning chip and controls the alarm to give an alarm. The utility model solves the problem that the leakage cannot be timely detected and the leakage position cannot be determined at present.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen preparation, in particular to an alarm system for detecting hydrogen leakage. Background Art

[0002] Hydrogen testing refers to the process of detecting and evaluating hydrogen's purity, concentration, moisture, impurities, and other indicators through specific methods and means. Hydrogen testing has a wide range of applications in industries such as industry and energy, and its accuracy is directly related to the safety of the production process and the accuracy of research.

[0003] The main items of hydrogen detection include:

[0004] Concentration: Determine the amount of hydrogen in the environment or sample.

[0005] Purity: Understanding the type and content of impurity gases in hydrogen is crucial for applications requiring high purity.

[0006] Leak detection: timely discover hydrogen leakage points to prevent safety accidents.

[0007] In hydrogen leak detection, hydrogen detection instruments are generally deployed in key areas prone to hydrogen leaks. However, there are many hydrogen leak points in the entire hydrogen production and storage process, and it is obviously unrealistic to set up a hydrogen detection instrument for each hydrogen leak point. Therefore, in the existing technology, hydrogen leak monitoring is selectively performed on key areas, and then hydrogen detection instruments are deployed in hydrogen production / storage spaces and ventilation ducts. However, this method makes it impossible for hydrogen detection instruments deployed in hydrogen production / storage spaces and ventilation ducts to detect hydrogen leaks in non-key areas due to the large overall space and the presence of air and other gases in the space to dilute the hydrogen. When hydrogen leaks occur, the hydrogen detection instruments deployed in hydrogen production / storage spaces and ventilation ducts cannot detect hydrogen leaks in a timely manner, and when hydrogen leaks are detected, the location of the leak cannot be clearly determined. Utility Model Content

[0008] The purpose of the utility model is to provide an alarm system for detecting hydrogen leakage, so as to solve the current problem that leakage cannot be detected in time and the leakage location cannot be clearly identified.

[0009] In order to achieve the above purpose, the technical solutions adopted are as follows:

[0010] An alarm system for detecting hydrogen leaks includes a display and control terminal, a mobile cart, a rotating base, a hydrogen detector, a positioning chip and an alarm. The mobile cart is provided with a rotating base, on which the hydrogen detector is mounted. The air inlet port of the hydrogen detector is respectively connected to a first air inlet pipe and a second air inlet pipe. The positioning chip is provided on the mobile cart. The display and control terminal is signal-connected to the hydrogen detector, the positioning chip and the alarm. The display and control terminal is used to obtain the hydrogen concentration detected by the hydrogen detector, and based on a set concentration threshold, when the hydrogen concentration detected by the hydrogen detector exceeds the set concentration threshold, the display and control terminal obtains the position signal collected by the positioning chip and controls the alarm to sound an alarm.

[0011] Preferably, in the above-mentioned alarm system for detecting hydrogen leakage, the rotating base includes a rotating motor and a turntable, the output end of the rotating motor is connected to the turntable, and the hydrogen detector is installed on the turntable.

[0012] Preferably, the above-mentioned alarm system for detecting hydrogen leaks further includes a camera component, which is signal-connected to the display and control terminal. The display and control terminal is used to control the camera component to take at least one picture and obtain the picture when the hydrogen concentration detected by the hydrogen detector exceeds a set concentration threshold.

[0013] Preferably, the above-mentioned alarm system for detecting hydrogen leakage further includes a camera assembly mounting member, wherein the camera assembly mounting member is provided on the mobile trolley, and the camera assembly is fixed on the camera assembly mounting member.

[0014] Preferably, in the above-mentioned alarm system for detecting hydrogen leaks, the camera assembly mounting component includes a support rod, a rotating motor and a rotating disk, one end of the support rod is fixed to the mobile trolley, the other end of the support rod is fixed to the rotating motor, the output end of the rotating motor is connected to the rotating disk, and the camera assembly is fixed on the rotating disk.

[0015] Preferably, in the above-mentioned alarm system for detecting hydrogen leakage, the camera component is an industrial camera.

[0016] Preferably, in the above-mentioned alarm system for detecting hydrogen leaks, the mobile vehicle includes a chassis and four traveling components, and the four traveling components are all installed on the chassis. The traveling components include a servo, a wheel drive and wheels; the output end of the servo is connected to the wheel drive, and the output end of the wheel drive is connected to the wheels.

[0017] Preferably, in the above-mentioned alarm system for detecting hydrogen leakage, the wheel includes a hub and a plurality of rollers mounted on the hub.

[0018] Preferably, in the above-mentioned alarm system for detecting hydrogen leakage, a plurality of rollers are installed on the hub in an inclined manner.

[0019] Preferably, in the above-mentioned alarm system for detecting hydrogen leaks, the mobile vehicle also includes a driving controller and a radar module, the radar module is connected to the driving controller, the positioning chip is signal-connected to the driving controller, and the driving controller is electrically connected to the servo and wheel drive.

[0020] The beneficial effects of the utility model are:

[0021] The utility model provides a mobile cart, on which a positioning chip and a hydrogen detector are assembled. The hydrogen detector can rotate as a whole, so that a full range of gas samples at a certain position can be collected. The mobile cart can be controlled to move within the hydrogen production / storage space, so as to dynamically collect the hydrogen concentration at each position. In the event that a hydrogen leak is detected, the approximate location of the hydrogen leak can be determined based on the positioning chip, which provides a reference for subsequent troubleshooting and reduces the troubleshooting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An axonometric view of a mobile vehicle of an alarm system for detecting hydrogen leaks according to an embodiment of the present utility model is shown.

[0023] Figure 2 A schematic diagram of electronic component connections of an alarm system for detecting hydrogen leakage according to an embodiment of the present utility model is shown.

[0024] Figure 3 A left side view of a mobile vehicle of an alarm system for detecting hydrogen leakage according to an embodiment of the present utility model is shown.

[0025] Figure 4 A schematic diagram of the connection of electronic components of a mobile vehicle in an alarm system for detecting hydrogen leakage according to an embodiment of the present utility model is shown.

[0026] Reference numerals:

[0027] 1. Display and control terminal; 2. Mobile trolley; 21. Chassis; 22. Travel assembly; 221. Servo; 222. Wheel drive; 223. Wheel; 2231. Wheel hub; 2232. Roller; 3. Rotating base; 301. Turntable; 4. Hydrogen detector; 5. Positioning chip; 6. Alarm; 7. First air inlet pipe; 8. Second air inlet pipe; 9. Camera assembly; 10. Camera assembly mounting part; 1001. Support rod; 1002. Rotating motor; 1003. Rotating disk. DETAILED DESCRIPTION

[0028] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0029] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings and examples.

[0030] The present invention provides an alarm system for detecting hydrogen leakage. Figures 1 to 3 As shown, an alarm system for detecting hydrogen leakage includes a display and control terminal 1, a mobile cart 2, a rotating base 3, a hydrogen detector 4, a positioning chip 5 and an alarm 6. The mobile cart 2 is provided with a rotating base 3, and the rotating base 3 is installed with a hydrogen detector 4. The air inlet ports of the hydrogen detector 4 are respectively connected to the first air inlet pipe 7 and the second air inlet pipe 8. The positioning chip 5 is provided on the mobile cart 2. The display and control terminal 1 is signal-connected with the hydrogen detector 4, the positioning chip 5 and the alarm 6. The display and control terminal 1 is used to obtain the hydrogen concentration detected by the hydrogen detector 4, and based on the set concentration threshold, when the hydrogen concentration detected by the hydrogen detector 4 exceeds the set concentration threshold, the display and control terminal 1 obtains the position signal collected by the positioning chip and controls the alarm 6 to alarm.

[0031] It should be noted that the display and control terminal 1 mentioned in this article can be implemented as an industrial computer. In the actual hydrogen production and manufacturing scenario, the display and control terminal 1 can be arranged in the hydrogen manufacturing workshop or the safety management room. The signal connection method between the display and control terminal 1 and the hydrogen detector 4, the positioning chip 5 and the alarm 6 is a wireless connection, including but not limited to connection through WiFi, Bluetooth, local area network, etc. The hydrogen detector 4 is a commercially available product, and its function is to detect the hydrogen concentration in the sample gas. The mobile cart 2 can be an RGV cart. The centering chip 5 can be a UWB chip. The alarm 6 can be arranged in the hydrogen manufacturing workshop to remind employees in the workshop that there is a hydrogen leak. The alarm 6 can be an audible and visual alarm or a buzzer, etc.

[0032] In the specific implementation, taking the mobile trolley 2 as an RGV trolley as an example, the mobile trolley 2 can move along the set trajectory in the workshop. During the movement, the rotating base 3 rotates at a set speed, and the built-in sampling pump of the hydrogen detector 4 extracts gas as a test sample through the first air inlet pipe 7 and the second air inlet pipe 8. The hydrogen detector 4 detects and analyzes the extracted test sample in real time to obtain the hydrogen concentration, which is fed to the display and control terminal 1 through the hydrogen detector 4. The display and control terminal 1 is based on the set concentration threshold. If the hydrogen concentration exceeds the set concentration threshold, it indicates that the hydrogen concentration at the current location exceeds the standard and there is a hydrogen leakage problem. At this time, the location information can be obtained through the positioning chip 5, and the alarm 6 can be directly controlled to sound an alarm to remind personnel to evacuate. Subsequently, the relevant equipment in the workshop is shut down. Since the relevant equipment is shut down, there may be some residual gas in the original process. Therefore, the mobile trolley 2 can be controlled to move forward along the set trajectory for a period of time and obtain the hydrogen concentration at the next location information. Generally speaking, if the hydrogen concentration at the next location information is greater than the hydrogen concentration corresponding to the alarm, the hydrogen leak is considered to be at a certain position in the forward direction of the mobile vehicle 2. If the hydrogen concentration at the next location information is less than the hydrogen concentration corresponding to the alarm, the hydrogen leak is considered to be at the location where the alarm was triggered by the mobile vehicle 2 or at a certain position in the backward direction of the mobile vehicle 2. Of course, after the alarm is triggered, the mobile vehicle 2 can be stopped directly and a key detection area can be divided with the alarm triggering location as the center and a certain length as the radius. This detection area is the area where the leakage point may be located.

[0033] In some embodiments, a specific structure of the rotating base 3 is provided, such as Figure 1 As shown, the rotating base 3 includes a rotating motor and a turntable 301. The output end of the rotating motor is connected to the turntable 301, and the hydrogen detector 4 is installed on the turntable 301. The rotating motor is not shown in the figure because it is assembled inside the chassis of the mobile vehicle 2. The rotating motor drives the turntable 301 to rotate so that the hydrogen detector 4 installed on the turntable 301 rotates. The rotation speed of the turntable 301 driven by the rotating motor can be determined according to the injection speed of the hydrogen detector 4. For example, the time for the hydrogen detector 4 to complete a round of injection is t. Within the time t, the rotation speed of the turntable 301 driven by the rotating motor needs to ensure that the turntable 301 rotates at least one circle.

[0034] In some embodiments, the alarm system for detecting hydrogen leaks also includes a camera component 9, which is signal-connected to the display and control terminal 1. The display and control terminal 1 is used to control the camera component 9 to take at least one picture and obtain the picture when the hydrogen concentration detected by the hydrogen detector 4 exceeds the set concentration threshold.

[0035] In this embodiment, the camera assembly 9 can be implemented as an industrial camera. The function of the camera assembly 9 is to capture at least one image in real time when the alarm is triggered. Based on the captured image, the maintenance personnel can quickly locate the point where the alarm is triggered, thereby quickly checking the leak location and improving the troubleshooting efficiency.

[0036] In some embodiments, as Figure 3 As shown, the alarm system for detecting hydrogen leakage also includes a camera assembly mounting member 10, which is arranged on the mobile cart 2, and the camera assembly 9 is fixed on the camera assembly mounting member 10. The camera assembly mounting member 10 includes a support rod 1001, a rotating motor 1002 and a rotating disk 1003. One end of the support rod 1001 is fixed to the mobile cart 2, and the other end of the support rod 1001 is fixed to the rotating motor 1002. The output end of the rotating motor 1002 is connected to the rotating disk 1003, and the camera assembly 9 is fixed on the rotating disk 1003.

[0037] The camera assembly mounting part 10 is designed to be able to drive the camera assembly 9 to achieve 360° rotation, so that when the alarm is triggered, the rotating motor 1002 drives the rotating disk 1003 to rotate one circle, so that the camera assembly 9 rotates one circle at the same time, capturing pictures in more directions or forming a video, so that the location point where the alarm is triggered can be determined more directly.

[0038] In some embodiments, the structure of the mobile vehicle 2 is specifically designed. Figure 1 As shown, the mobile vehicle 2 includes a chassis 21 and four traveling components 22. The four traveling components 22 are all installed on the chassis 21. The traveling components 22 include a servo 221, a wheel driver 222 and a wheel 223. The output end of the servo 221 is connected to the wheel driver 222, and the output end of the wheel driver 223 is connected to the wheel.

[0039] The mobile vehicle 2 is driven by the steering gear 221 and the wheel driver 222. The wheel driver 222 drives the wheel 223 to rotate, and the wheel 223 contacts the ground, thereby achieving movement. The steering gear 221 is used to achieve the steering of the mobile vehicle 2. The steering gear 221 can control the wheel driver 222 to rotate, so that the wheel 223 connected to it can achieve steering.

[0040] It is understood that the mobile vehicle 2 may be equipped with a braking system. However, in this embodiment, a braking system is not necessary. The wheel drive 223 may be a self-locking motor. When the wheel drive 223 stops working, its rotor will remain in a locked position, thereby preventing the wheel 223 from rotating, increasing the friction between the wheel 223 and the ground, and achieving braking.

[0041] In some embodiments, as Figure 1As shown, the wheel 223 includes a hub 2231 and a plurality of rollers 2232 mounted on the hub, wherein the plurality of rollers 2232 are obliquely mounted on the hub 2231. This wheel design structure enables the wheel 223 to perform better when traveling on uneven ground and is less likely to be stuck in potholes or steps on the ground.

[0042] In some embodiments, as Figure 4 As shown, the mobile vehicle 2 further includes a driving controller 23 and a radar module 24 . The radar module 24 is connected to the driving controller 23 . The positioning chip 5 is signal-connected to the driving controller 23 . The driving controller 23 is electrically connected to the servo 221 and the wheel driver 222 .

[0043] In this embodiment, the radar module 24 can be a millimeter-wave radar, and the driving controller 23 can be connected to the display and control terminal 1 for communication. The driving controller 23 can control the servo 221 and the wheel driver 222 according to the set path based on the path map sent by the display and control terminal 1 and the positioning information of the positioning chip 5 to enable the mobile car 2 to move automatically in the workshop. The radar module 24 is used to play an emergency obstacle avoidance role. The radar module 24 is used to detect obstacles in the area where the mobile car 2 is about to move. When it is determined that there is an obstacle, the driving controller 23 can turn off the wheel driver 222 to stop the mobile car 2 to avoid hitting the obstacle.

[0044] The above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the scope of patent protection of the present invention shall be defined by the claims.

Claims

1. An alarm system for detecting hydrogen leaks, characterized in that: It includes a display and control terminal, a mobile cart, a rotating base, a hydrogen detector, a positioning chip and an alarm. The mobile cart is provided with a rotating base, and the hydrogen detector is installed on the rotating base. The air inlet port of the hydrogen detector is respectively connected to the first air inlet pipe and the second air inlet pipe. The positioning chip is provided on the mobile cart. The display and control terminal is signal-connected with the hydrogen detector, the positioning chip and the alarm. The display and control terminal is used to obtain the hydrogen concentration detected by the hydrogen detector, and based on a set concentration threshold, when the hydrogen concentration detected by the hydrogen detector exceeds the set concentration threshold, the display and control terminal obtains the position signal collected by the positioning chip and controls the alarm to sound an alarm.

2. An alarm system for detecting hydrogen leakage according to claim 1, characterized in that: The rotating base includes a rotating motor and a turntable. The output end of the rotating motor is connected to the turntable, and the hydrogen detector is installed on the turntable.

3. The alarm system for detecting hydrogen leakage according to claim 1, characterized in that: It also includes a camera component, which is signal-connected to the display and control terminal. The display and control terminal is used to control the camera component to take at least one picture and obtain the picture when the hydrogen concentration detected by the hydrogen detector exceeds a set concentration threshold.

4. An alarm system for detecting hydrogen leakage according to claim 3, characterized in that: It also includes a camera assembly mounting piece, which is arranged on the mobile vehicle, and the camera assembly is fixed on the camera assembly mounting piece.

5. An alarm system for detecting hydrogen leakage according to claim 4, characterized in that: The camera assembly mounting component includes a support rod, a rotating motor and a rotating disk. One end of the support rod is fixed to the moving trolley, and the other end of the support rod is fixed to the rotating motor. The output end of the rotating motor is connected to the rotating disk, and the camera assembly is fixed on the rotating disk.

6. The alarm system for detecting hydrogen leakage according to claim 3, characterized in that: The camera assembly is an industrial camera.

7. The alarm system for detecting hydrogen leakage according to claim 1, characterized in that: The mobile vehicle includes a chassis and four traveling components, all of which are mounted on the chassis. The traveling components include a servo, a wheel drive, and wheels. The output end of the servo is connected to the wheel drive, and the output end of the wheel drive is connected to the wheels.

8. The alarm system for detecting hydrogen leakage according to claim 7, characterized in that: The wheel includes a hub and a plurality of rollers mounted on the hub.

9. An alarm system for detecting hydrogen leakage according to claim 8, characterized in that: A plurality of rollers are installed on the hub in an inclined manner.

10. The alarm system for detecting hydrogen leakage according to claim 7, characterized in that: The mobile car also includes a driving controller and a radar module. The radar module is connected to the driving controller. The positioning chip is signal-connected to the driving controller. The driving controller is electrically connected to the steering gear and the wheel drive.

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