Distributed SF6 leakage alarm system

Abstract

The utility model relates to the technical field of SF6 gas, and discloses a distributed SF6 leakage alarm system which comprises a base and a belt, the top end of the base is sequentially provided with a second electric push rod, a box body and a fan from left to right, and the end face of an output shaft of the second electric push rod is fixedly connected with a supporting plate. The top end of the supporting plate is fixedly connected with a gear motor and a fixing pipe. According to the technical scheme, the pipe body at the air inlet end is arranged to be the metal straight pipe, reciprocating stretching and retracting of the pipe body can be avoided, the first electric push rod can push the fixing block to move, the fixing block can synchronously drive the connecting plate to move when moving, the connecting plate is located on the side, away from the rotating pipe, of the straight pipe, and the straight pipe is supported; according to the straight pipe connecting device, the load at the connecting position of the rotating pipe and the straight pipe is reduced, the straight pipe connecting device is suitable for straight pipes with different lengths, meanwhile, the smoothness of the connecting plate moving on the straight pipe can be improved under the action of the rolling wheels, and the service life of the straight pipe is prolonged through cooperation of the structures.

Description

Technical Field

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

[0002] Sulfur hexafluoride is an inorganic compound with the chemical formula SF6. It is a colorless, odorless, non-toxic, non-flammable stable gas at room temperature and pressure. Its molecular weight is 146.055. Its density is 6.0886 kg / m3 at 20°C and 0.1 MPa, which is about 5 times the density of air. The molecular structure of sulfur hexafluoride is octahedral, with a small bonding distance and high bonding energy. Therefore, it has high stability. When the temperature does not exceed 180°C, its compatibility with electrical structural materials is similar to that of nitrogen. Existing SF6 gas is usually detected by probes.

[0003] The patent document with the published announcement number CN219957505U discloses an SF6 gas leakage alarm device, which belongs to the technical field of alarm devices. The device comprises a workbench, a driving box is fixed on the top of the workbench, a lifting rod is slidably installed on the top of the driving box, a box body is fixed on the top of the workbench, a sensor probe is fixedly installed in the box body, a fan is fixedly installed on one side of the box body, a hose is fixed on the other side of the box body, a horizontal plate is fixed on the top of the lifting rod, a tube body is rotatably installed on the top of the horizontal plate, a rotating tube is rotatably installed on the tube body, a rotating device for driving the rotating tube to rotate is provided on the horizontal plate, and a push rod motor is fixed on the top of the rotating tube; a large range of gas absorption is achieved, and a large range of gas detection can be carried out with only one sensor probe, which improves safety, has a reasonable structure, and is easy to promote.

[0004] In actual use of the above device, since the tube body at the air inlet end adopts a telescopic tube, long-term reciprocating extension or compression may easily cause damage to the tube body of the telescopic tube, affecting its service life. Therefore, a distributed SF6 leakage alarm system is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a distributed SF6 leakage alarm system to solve the problems raised in the background technology.

[0006] The embodiment of the present application provides a distributed SF6 leakage alarm system, including a base and a belt. The top of the base is provided with a second electric push rod, a box body and a fan in sequence from left to right. The end face of the output shaft of the second electric push rod is fixedly connected to a support plate. The top of the support plate is fixedly connected to a reduction motor and a fixed pipe. The fixed pipe is located on one side of the reduction motor. The top of the fixed pipe is rotatably connected to a rotating pipe. The end face of the output shaft of the reduction motor is fixedly connected to a rotating wheel. The rotating wheel and the rotating pipe are connected by a belt transmission. The top of the rotating pipe is fixedly connected to a first electric push rod. The end face of the output shaft of the first electric push rod is fixedly connected to a fixed block. The bottom end of the fixed block is fixedly connected to a connecting plate. A straight pipe is penetrated on the connecting plate. The straight pipe is threadedly connected to the rotating pipe. A mounting frame is installed inside the connecting plate. A roller is rotatably connected to the mounting frame through a rotating shaft. The roller is rollingly connected to the straight pipe. A connecting pipe is fixedly connected between the fixed pipe and the box body. An alarm is fixedly connected to the top of the box body. A sensor probe is installed inside the box body. A power control panel is provided on the front wall of the base.

[0007] By adopting the above technical solution, by setting the tube body at the air inlet end as a metal straight tube, the reciprocating extension and contraction of the tube body can be avoided, and the first electric push rod can push the fixed block to move, and when the fixed block moves, it can synchronously drive the connecting plate to move, so that the connecting plate is located on the side of the straight tube away from the rotating tube, playing a role of supporting the straight tube, reducing the load at the connection between the rotating tube and the straight tube, and adapting to straight tubes of different lengths. At the same time, under the action of the roller, the smoothness of the connecting plate when moving on the straight tube can be increased. Usually, the cooperation of the above structures improves the service life of the straight tube.

[0008] Optionally, an air duct is fixedly connected between the air exhaust end of the fan and the box body.

[0009] The adoption of the technical solution is beneficial to the connection between the fan and the box body, and the gas in the box body can be discharged.

[0010] Optionally, there are two rollers in total, and the two rollers are symmetrically arranged up and down.

[0011] The adoption of the above technical solution is conducive to maintaining the stability of the connecting plate sliding on the straight pipe.

[0012] Optionally, a circular hole is formed on the connecting plate, and the diameter of the circular hole is larger than the diameter of the straight tube.

[0013] The adoption of the technical solution is conducive to installing straight pipes of different sizes.

[0014] Optionally, a limit block is provided on an external fixing sleeve on a side of the straight tube away from the rotating tube.

[0015] By adopting the above technical solution, the sliding position of the connecting plate on the straight pipe can be limited, thereby preventing the connecting plate and the straight pipe from falling off.

[0016] Optionally, the straight tube is made of stainless steel metal material.

[0017] The adoption of the above technical solution is beneficial to improving the corrosion resistance of the straight pipe and extending its service life.

[0018] Optionally, the rotating tube and the rotating wheel are both provided with limiting grooves adapted to the belt.

[0019] By adopting the above technical solution, the position of the belt can be limited to prevent the belt from sliding up and down.

[0020] Optionally, universal self-locking wheels are fixedly connected to the four corners of the bottom end of the base.

[0021] The adoption of the above technical solution is conducive to the flexible movement of equipment.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application can avoid the reciprocating expansion and contraction of the tube body by configuring the tube body at the air inlet end to be a metal straight tube, and the first electric push rod can push the fixed block to move, and the fixed block can synchronously drive the connecting plate to move when it moves, so that the connecting plate is located on the side of the straight tube away from the rotating tube, thereby supporting the straight tube, reducing the load at the connection between the rotating tube and the straight tube, and being adaptable to straight tubes of different lengths. At the same time, under the action of the roller, the smoothness of the connecting plate when moving on the straight tube can be increased. Generally, the cooperation of the above structures increases the service life of the straight tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of a distributed SF6 leakage alarm system of the utility model;

[0026] Figure 2 This is an enlarged schematic diagram of the structure of area A of a distributed SF6 leakage alarm system of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a connection plate of a distributed SF6 leakage alarm system of the utility model;

[0028] Figure 4 The utility model is a schematic diagram of the internal structure of a box of a distributed SF6 leakage alarm system.

[0029] In the figure: 1. first electric push rod; 2. fixing block; 3. connecting plate; 4. limiting block; 5. straight pipe; 6. second electric push rod; 7. connecting pipe; 8. universal self-locking wheel; 9. base; 10. power control panel; 11. fan; 12. alarm; 13. box body; 14. support plate; 15. reduction motor; 16. roller; 17. mounting bracket; 18. sensor probe; 19. limiting slot; 20. rotating pipe; 21. fixing pipe; 22. rotating wheel; 23. belt. DETAILED DESCRIPTION

[0030] See also Figure 1-4 The utility model provides a technical solution: a distributed SF6 leakage alarm system, including a base 9 and a belt 23, the top of the base 9 is sequentially provided with a second electric push rod 6, a box body 13 and a fan 11 from left to right, the end face of the output shaft of the second electric push rod 6 is fixedly connected with a support plate 14, the top of the support plate 14 is fixedly connected with a reduction motor 15 and a fixed pipe 21, the fixed pipe 21 is located on one side of the reduction motor 15, the top of the fixed pipe 21 is rotatably connected with a rotating pipe 20, the end face of the output shaft of the reduction motor 15 is fixedly connected with a rotating wheel 22, the rotating wheel 22 and the rotating pipe 20 are connected through a belt 23, and the rotating pipe 21 is connected to the rotating wheel 22. 0 is fixedly connected to the top of the first electric push rod 1, the end face of the output shaft of the first electric push rod 1 is fixedly connected to the fixed block 2, the bottom end of the fixed block 2 is fixedly connected to the connecting plate 3, a straight pipe 5 is passed through the connecting plate 3, the straight pipe 5 is threadedly connected to the rotating pipe 20, a mounting frame 17 is installed inside the connecting plate 3, a roller 16 is rotatably connected to the mounting frame 17 through a rotating shaft, the roller 16 is rollingly connected to the straight pipe 5, a connecting pipe 7 is fixedly connected between the fixed pipe 21 and the box body 13, an alarm 12 is fixedly connected to the top of the box body 13, a sensor probe 18 is installed inside the box body 13, and a power control panel 10 is provided on the front wall of the base 9.

[0031] In the technical solution of the utility model, if Figure 1 As shown, an air duct is fixedly connected between the exhaust end of the fan 11 and the box body 13; this is beneficial to the connection between the fan 11 and the box body 13, and can discharge the gas in the box body 13.

[0032] In the technical solution of the utility model, if Figure 3 As shown, there are two rollers 16 , which are symmetrically arranged up and down, which is beneficial to maintaining the stability of the connecting plate 3 sliding on the straight pipe 5 .

[0033] In the technical solution of the utility model, if Figure 3 As shown, a circular hole is opened on the connecting plate 3, and the diameter of the circular hole is larger than the diameter of the straight tube 5; this is conducive to installing straight tubes 5 of different sizes.

[0034] In the technical solution of the utility model, if Figure 1 As shown, a limit block 4 is provided on the outer fixed sleeve of one side of the straight tube 5 away from the rotating tube 20 , which can limit the sliding position of the connecting plate 3 on the straight tube 5 to prevent the connecting plate 3 and the straight tube 5 from falling off.

[0035] In the technical solution of the utility model, if Figure 1 As shown, the straight pipe 5 is made of stainless steel metal material, which is beneficial to improving the corrosion resistance of the straight pipe 5 and extending the service life.

[0036] In the technical solution of the utility model, if Figure 2 As shown, both the rotating tube 20 and the rotating wheel 22 are provided with limiting grooves 19 adapted to the belt 23 , which can limit the position of the belt 23 and prevent the belt 23 from sliding up and down.

[0037] In the technical solution of the utility model, if Figure 1 As shown, the four corners of the bottom end of the base 9 are fixedly connected with universal self-locking wheels 8, which is conducive to the flexible movement of the equipment.

[0038] When in use, the fan 11 can be started through the power control panel 10, and the fan 11 can discharge the gas in the box body 13. At the same time, the external gas can enter the interior of the box body 13 through the straight pipe 5, the rotating pipe 20, the fixed pipe 21 and the connecting pipe 7 in sequence. Whether there is SF6 gas in the box body 13 can be detected by the sensor probe 18. When SF6 gas is detected, the controller controls the alarm 12 to sound an alarm. The second electric push rod 6 can drive the straight pipe 5 to rise and fall. At the same time, with the cooperation of the motor 15, the rotating wheel 22, the belt 23 and the rotating pipe 20, the straight pipe 5 can be driven to rotate, which can increase the detection range. The first electric push rod 1 can push the fixed block 2 to move. When the fixed block 2 moves, it can synchronously drive the connecting plate 3 to move, so that the connecting plate 3 is located on the side of the straight pipe 5 away from the rotating pipe 20, which plays a role in supporting the straight pipe 5, reduces the load at the connection between the rotating pipe 20 and the straight pipe 5, and is suitable for straight pipes of different lengths. At the same time, under the action of the roller 16, the smoothness of the connecting plate 3 when moving on the straight pipe 5 can be increased, which is convenient for use.

[0039] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A distributed SF6 leakage alarm system, characterized in that: The invention comprises a base (9) and a belt (23), wherein the top of the base (9) is provided with a second electric push rod (6), a box body (13) and a fan (11) in sequence from left to right, the end face of the output shaft of the second electric push rod (6) is fixedly connected to a support plate (14), the top face of the support plate (14) is fixedly connected to a reduction motor (15) and a fixed tube (21), the fixed tube (21) is located on one side of the reduction motor (15), the top face of the fixed tube (21) is rotatably connected to a rotating tube (20), the end face of the output shaft of the reduction motor (15) is fixedly connected to a rotating wheel (22), the rotating wheel (22) and the rotating tube (20) are connected in transmission via a belt (23), the top face of the rotating tube (20) is fixedly connected to a first electric push rod (1), the The end face of the output shaft of the first electric push rod (1) is fixedly connected to a fixed block (2), the bottom end of the fixed block (2) is fixedly connected to a connecting plate (3), a straight tube (5) is passed through the connecting plate (3), the straight tube (5) is threadedly connected to a rotating tube (20), a mounting frame (17) is installed inside the connecting plate (3), a roller (16) is rotatably connected to the mounting frame (17) via a rotating shaft, the roller (16) is rollingly connected to the straight tube (5), a connecting tube (7) is fixedly connected between the fixed tube (21) and the box body (13), an alarm (12) is fixedly connected to the top end of the box body (13), a sensor probe (18) is installed inside the box body (13), and a power control panel (10) is arranged on the front wall of the base (9).

2. A distributed SF6 leakage alarm system according to claim 1, characterized in that: An air duct is fixedly connected between the air exhaust end of the fan (11) and the box body (13).

3. A distributed SF6 leakage alarm system according to claim 1, characterized in that: There are two rollers (16) in total, and the two rollers (16) are symmetrically arranged up and down.

4. A distributed SF6 leakage alarm system according to claim 1, characterized in that: The connecting plate (3) is provided with a circular hole, the diameter of which is larger than the diameter of the straight tube (5).

5. A distributed SF6 leakage alarm system according to claim 1, characterized in that: A limiting block (4) is provided on an external fixed sleeve on a side of the straight tube (5) away from the rotating tube (20).

6. A distributed SF6 leakage alarm system according to claim 1, characterized in that: The straight tube (5) is made of stainless steel metal material.

7. A distributed SF6 leakage alarm system according to claim 1, characterized in that: The rotating tube (20) and the rotating wheel (22) are both provided with limiting grooves (19) adapted to the belt (23).

8. A distributed SF6 leakage alarm system according to claim 1, characterized in that: Universal self-locking wheels (8) are fixedly connected to the four corners of the bottom end of the base (9).

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