SF6 gas leakage alarm system

Abstract

The utility model provides an SF6 gas leakage alarm system, which relates to the technical field of gas detection, and comprises a guide rail and a movable seat, wherein the movable seat is movably arranged on the guide rail, and a turntable is rotatably provided at the bottom of the movable seat, a detection host is provided at the bottom of the turntable, and an electric telescopic rod is rotatably provided at the bottom of the detection host, and an output end of the electric telescopic rod is rotatably provided with a support arm, and one end of the support arm is rotatably provided with a connecting arm; the utility model uses an exhaust fan to draw air, so that external air enters the interior of the detection host through a stretching tube, and detection is performed through a detection sensor, the detection host is arranged on the movable seat, the movable seat can move along the guide rail to change the detection position, the detection host can be driven to rotate and the detection direction can be changed by rotating the turntable, and the detection height and angle can be changed in a diversified manner by extending and rotating the electric telescopic rod, rotating the support arm, and rotating the connecting arm, thereby facilitating the expansion of the detection range and reducing detection blind spots.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to an SF6 gas leakage alarm system. Background Art

[0002] SF6 is an important medium, which is used as arc extinguishing and insulating gas for enclosed medium and high voltage switches. However, during the switching operation, SF6 gas will decompose under the influence of arc, corona, spark discharge, partial discharge, high temperature and other factors. Its decomposition will become corrosive electrolyte when it encounters moisture. Some of the highly toxic decomposition products, such as SF4, S2F2, S2F10, SOF2, HF and SO2, will irritate the skin and mucous membranes. If inhaled in large quantities, it will also cause dizziness and emphysema, and even cause death. Most of the equipment filled with SF6 gas is installed indoors, and the air circulation speed is relatively slow. If SF6 gas leaks, it will be deposited indoors and not easy to dissipate. SF6 gas itself is colorless and odorless, and it is not easy to be detected after leakage. Therefore, oxygen and SF6 detection alarm devices must be installed in relevant places, and necessary ventilation and air exchange devices must be installed;

[0003] In the prior art, for example, authorization announcement number CN 219017078U discloses “a gas detection alarm system for an SF6 switch arc extinguishing chamber”, and specifically discloses: a number of gas detectors are arranged at the lowest position in the switch room (the density of SF6 gas is greater than that of air) to detect the gas content. When a toxic gas leak occurs, the detector feeds back an alarm signal to the SF6 gas leakage detection alarm system, and the SF6 gas leakage detection alarm system issues an audible and visual alarm as required; however, in the above technology, the system is generally arranged at a fixed position, so that detection and alarm are performed within a fixed range, and the coverage range is limited, and there are many blind spots. Therefore, the utility model proposes an SF6 gas leakage alarm system to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes an SF6 gas leakage alarm system, which is convenient for expanding the detection range and reducing the detection blind spots.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: an SF6 gas leakage alarm system, comprising a guide rail and a moving seat, the moving seat is movably arranged on the guide rail, and a turntable is rotatably provided at the bottom of the moving seat, a detection host is provided at the bottom of the turntable, and an electric telescopic rod is rotatably provided at the bottom of the detection host, a support arm is rotatably provided at the output end of the electric telescopic rod, and a connecting arm is rotatably provided at one end of the support arm, a stretching tube is connected to the bottom of the detection host, and one end of the stretching tube is fixed to the connecting arm;

[0006] A detection sensor is provided at the bottom of the detection host, and an exhaust fan is provided in the middle of the detection host. An air outlet is provided above the outer side of the detection host. An alarm communication module is provided on the movable seat, and the alarm communication module is electrically connected to the detection sensor.

[0007] A further improvement is that the alarm communication module includes a positioning module, a Bluetooth chip and a WIFI communication module, and the data output end of the alarm communication module is wirelessly connected to the alarm of the master control terminal.

[0008] A further improvement is that both ends of the upper inner side of the moving seat are rotatably provided with moving wheels, and the moving wheels are driven to rotate by a reduction motor, and the moving wheels are adapted to the inner guide grooves of the guide rails.

[0009] A further improvement is that a motor is provided on one side of the moving seat, and a rubber wheel is provided at the output end of the motor, the rubber wheel is attached to the outer side of the turntable, and the rubber wheel drives the turntable to rotate.

[0010] A further improvement is that: an axle seat is provided at the bottom of the detection host, and an axle plate is provided at the upper end of the electric telescopic rod. The axle plate is rotatably connected to the axle seat and is driven to rotate by a first motor.

[0011] Further improvements are: a first rotating plate is provided at the output end of the electric telescopic rod, a second rotating plate is provided at the rear end of the support arm, the first rotating plate and the second rotating plate are rotatably connected, and a second motor is provided on the first rotating plate, the output end of the second motor is connected to the first rotating plate, a third rotating plate is provided at the front end of the support arm, a fourth rotating plate is provided at the upper end of the connecting arm, the third rotating plate and the fourth rotating plate are rotatably connected, a third motor is provided on the third rotating plate, and the output end of the third motor is connected to the fourth rotating plate.

[0012] A further improvement is that a hoop is provided at the lower end of the outer side of the connecting arm, and the lower end of the stretch tube passes through the hoop and is fixed by the hoop.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model uses an exhaust fan to draw air so that external air enters the interior of the detection host through a stretching tube, and detects through a detection sensor. The detection host is arranged on a mobile seat, and the mobile seat can move along a guide rail to change the detection position. The detection host can be driven to rotate by rotating the turntable to change the detection direction. The detection height and angle can be changed in a diversified manner by extending and rotating the electric telescopic rod, rotating the support arm, and rotating the connecting arm, thereby facilitating the expansion of the detection range and reducing the detection blind spots.

[0015] 2. After the utility model detects through the detection sensor, the alarm communication module wirelessly sends the detected data to the alarm of the master control terminal, and alarms in case of abnormality. The wireless connection of the Bluetooth chip and the WIFI communication module ensures multi-line communication. The positioning data of the positioning module can quickly locate the position of the device in case of abnormality, which provides convenience for repair and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 This is a schematic diagram of the interior of the detection host of the utility model;

[0018] Figure 3 It is a schematic diagram of the mobile seat of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the electric telescopic rod of the utility model.

[0020] Among them: 1. Guide rail; 2. Moving seat; 3. Turntable; 4. Detection host; 5. Electric telescopic rod; 6. Support arm; 7. Connecting arm; 8. Stretch tube; 9. Detection sensor; 10. Exhaust fan; 11. Air outlet; 12. Alarm communication module; 13. Moving wheel; 14. Motor; 15. Rubber wheel; 16. Axle seat; 17. Axle plate; 18. First rotating plate; 19. Second rotating plate; 20. Third rotating plate; 21. Fourth rotating plate; 22. Hoop. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0022] Embodiment 1

[0023] according to Figure 1 , 2 As shown in , 3 and 4, this embodiment proposes an SF6 gas leakage alarm system, including a guide rail 1 and a moving seat 2, the moving seat 2 is movably arranged on the guide rail 1, and a turntable 3 is rotatably provided at the bottom of the moving seat 2, a detection host 4 is provided at the bottom of the turntable 3, and an electric telescopic rod 5 is rotatably provided at the bottom of the detection host 4, an output end of the electric telescopic rod 5 is rotatably provided with a support arm 6, and one end of the support arm 6 is rotatably provided with a connecting arm 7, a stretching tube 8 is connected to the bottom of the detection host 4, and one end of the stretching tube 8 is fixed to the connecting arm 7;

[0024] A detection sensor 9 is provided at the bottom of the detection host 4, and an exhaust fan 10 is provided in the middle of the detection host 4. An air outlet 11 is provided above the outer side of the detection host 4. An alarm communication module 12 is provided on the mobile seat 2, and the alarm communication module 12 is electrically connected to the detection sensor 9. When in use, the exhaust fan 10 draws air so that the external air enters the detection host 4 through the stretching tube 8, and the detection is performed by the detection sensor 9. The detection host 4 is arranged on the mobile seat 2, and the mobile seat 2 can move along the guide rail 1 to change the detection position. The detection host 4 can be driven to rotate by rotating the turntable 3 to change the detection direction. The detection height and angle can be changed in a diversified manner by extending and rotating the electric telescopic rod 5, rotating the support arm 6, and rotating the connecting arm 7, thereby conveniently expanding the detection range.

[0025] The alarm communication module 12 includes a positioning module, a Bluetooth chip and a WIFI communication module, and the data output end of the alarm communication module 12 is wirelessly connected to the alarm of the master control terminal. When in use, after detection by the detection sensor 9, the alarm communication module 12 wirelessly sends the detected data to the alarm of the master control terminal, and alarms in the event of an abnormality. The wireless connection of the Bluetooth chip and the WIFI communication module ensures multi-line communication. Through the positioning data of the positioning module, the position of the device can be quickly located in the event of an abnormality, which provides convenience for repair and improves efficiency.

[0026] Both ends of the upper inner side of the moving seat 2 are rotatably provided with moving wheels 13, and the moving wheels 13 are driven to rotate by a reduction motor, and the moving wheels 13 are adapted to the inner guide groove of the guide rail 1. When in use, the reduction motor drives the moving wheels 13 to rotate, and the moving wheels 13 contact the inner guide groove of the guide rail 1, so that the moving seat 2 can move along the guide rail 1 to change the detection position.

[0027] A motor 14 is provided on one side of the moving seat 2, and a rubber wheel 15 is provided at the output end of the motor 14. The rubber wheel 15 is attached to the outer side of the turntable 3, and the rubber wheel 15 drives the turntable 3 to rotate. When in use, the motor 14 drives the rubber wheel 15 to rotate, and the rubber wheel 15 drives the turntable 3 to rotate, thereby driving the detection host 4 to rotate and change the detection direction.

[0028] Embodiment 2

[0029] according to Figure 1 , 2As shown in , 3 and 4, this embodiment proposes an SF6 gas leakage alarm system, including a guide rail 1 and a moving seat 2, the moving seat 2 is movably arranged on the guide rail 1, and a turntable 3 is rotatably provided at the bottom of the moving seat 2, a detection host 4 is provided at the bottom of the turntable 3, and an electric telescopic rod 5 is rotatably provided at the bottom of the detection host 4, an output end of the electric telescopic rod 5 is rotatably provided with a support arm 6, and one end of the support arm 6 is rotatably provided with a connecting arm 7, a stretching tube 8 is connected to the bottom of the detection host 4, and one end of the stretching tube 8 is fixed to the connecting arm 7;

[0030] A detection sensor 9 is provided at the bottom of the detection host 4, and an exhaust fan 10 is provided in the middle of the detection host 4. An air outlet 11 is provided above the outer side of the detection host 4. An alarm communication module 12 is provided on the mobile seat 2, and the alarm communication module 12 is electrically connected to the detection sensor 9. When in use, the exhaust fan 10 draws air so that the external air enters the detection host 4 through the stretching tube 8, and the detection is performed by the detection sensor 9. The detection host 4 is arranged on the mobile seat 2, and the mobile seat 2 can move along the guide rail 1 to change the detection position. The detection host 4 can be driven to rotate by rotating the turntable 3 to change the detection direction. The detection height and angle can be changed in a diversified manner by extending and rotating the electric telescopic rod 5, rotating the support arm 6, and rotating the connecting arm 7, thereby conveniently expanding the detection range.

[0031] The bottom of the detection host 4 is provided with an axle seat 16, and the upper end of the electric telescopic rod 5 is provided with an axle plate 17, and the axle plate 17 is rotatably connected to the axle seat 16 and driven to rotate by the first motor. The output end of the electric telescopic rod 5 is provided with a first rotating plate 18, and the rear end of the support arm 6 is provided with a second rotating plate 19, and the first rotating plate 18 and the second rotating plate 19 are rotatably connected, and the first rotating plate 18 is provided with a second motor, and the output end of the second motor is connected to the first rotating plate 18, and the front end of the support arm 6 is provided with a third rotating plate 20, and the upper end of the connecting arm 7 is provided with a fourth rotating plate 21, and the third rotating plate 20 and the fourth rotating plate 21 are rotatably connected, and the third rotating plate 20 is provided with a third motor, and the output end of the third motor is connected to the fourth rotating plate 21. When in use, the electric telescopic rod 5 is extended and rotated, the support arm 6 rotates, and the connecting arm 7 rotates, which can diversify the detection height and angle of the input end of the stretch tube 8, thereby conveniently expanding the detection range.

[0032] The lower end of the outer side of the connecting arm 7 is provided with a hoop 22, and the lower end of the stretch tube 8 passes through the hoop 22 and is fixed by the hoop 22. When in use, the input end of the stretch tube 8 is inserted into the hoop 22 for fixing, and the position of the input end of the stretch tube 8 can be adjusted to perform air extraction detection in multiple positions, directions, angles and heights.

[0033] The SF6 gas leakage alarm system uses an exhaust fan 10 to draw air, so that the external air enters the detection host 4 through the stretch tube 8, and is detected by the detection sensor 9. The detection host 4 is set on the mobile seat 2, and the mobile seat 2 can move along the guide rail 1 to change the detection position. The detection host 4 can be driven to rotate by the rotation of the turntable 3 to change the detection direction. The detection height and angle can be changed in a diversified manner by the extension and rotation of the electric telescopic rod 5, the rotation of the support arm 6, and the rotation of the connecting arm 7, so as to facilitate the expansion of the detection range and reduce the detection blind spot. After detection by the detection sensor 9, the alarm communication module 12 wirelessly sends the detection data to the alarm of the master control terminal, and alarms in case of abnormality. Through the wireless connection of the Bluetooth chip and the WIFI communication module, multi-line communication is guaranteed. Through the positioning data of the positioning module, the position of the device can be quickly located in case of abnormality, which provides convenience for repair and improves efficiency.

[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An SF6 gas leakage alarm system, comprising a guide rail (1) and a movable seat (2), characterized in that: The movable seat (2) is movably arranged on the guide rail (1), and a turntable (3) is rotatably provided at the bottom of the movable seat (2), a detection host (4) is rotatably provided at the bottom of the turntable (3), and an electric telescopic rod (5) is rotatably provided at the bottom of the detection host (4), an output end of the electric telescopic rod (5) is rotatably provided with a support arm (6), and one end of the support arm (6) is rotatably provided with a connecting arm (7), a stretching tube (8) is connected to the bottom of the detection host (4), and one end of the stretching tube (8) is fixed to the connecting arm (7); A detection sensor (9) is provided at the bottom of the detection host (4), and an exhaust fan (10) is provided in the middle of the detection host (4). An air outlet (11) is provided above the outer side of the detection host (4). An alarm communication module (12) is provided on the movable seat (2), and the alarm communication module (12) is electrically connected to the detection sensor (9).

2. The SF6 gas leakage alarm system according to claim 1, characterized in that: The alarm communication module (12) comprises a positioning module, a Bluetooth chip and a WIFI communication module, and the data output end of the alarm communication module (12) is wirelessly connected to the alarm of the master control terminal.

3. The SF6 gas leakage alarm system according to claim 1, characterized in that: Both ends of the upper inner side of the movable seat (2) are rotatably provided with movable wheels (13), and the movable wheels (13) are driven to rotate by a reduction motor, and the movable wheels (13) are adapted to the inner guide grooves of the guide rails (1).

4. The SF6 gas leakage alarm system according to claim 1, characterized in that: A motor (14) is provided on one side of the movable seat (2), and a rubber wheel (15) is provided at the output end of the motor (14). The rubber wheel (15) is attached to the outer side of the rotating disk (3), and the rubber wheel (15) drives the rotating disk (3) to rotate.

5. The SF6 gas leakage alarm system according to claim 1, characterized in that: The bottom of the detection host (4) is provided with an axle seat (16), and the upper end of the electric telescopic rod (5) is provided with an axle plate (17). The axle plate (17) is rotatably connected to the axle seat (16) and is driven to rotate by a first motor.

6. The SF6 gas leakage alarm system according to claim 5, characterized in that: The output end of the electric telescopic rod (5) is provided with a first rotating plate (18), the rear end of the support arm (6) is provided with a second rotating plate (19), the first rotating plate (18) and the second rotating plate (19) are rotatably connected, and a second motor is provided on the first rotating plate (18), the output end of the second motor is connected to the first rotating plate (18), the front end of the support arm (6) is provided with a third rotating plate (20), the upper end of the connecting arm (7) is provided with a fourth rotating plate (21), the third rotating plate (20) and the fourth rotating plate (21) are rotatably connected, the third rotating plate (20) is provided with a third motor, and the output end of the third motor is connected to the fourth rotating plate (21).

7. The SF6 gas leakage alarm system according to claim 6, characterized in that: The lower end of the outer side of the connecting arm (7) is provided with a hoop (22), and the lower end of the stretching tube (8) passes through the hoop (22) and is fixed by the hoop (22).

Images