Sulfur hexafluoride gas filtering device

Abstract

The utility model relates to the technical field of gas filtering, and discloses a sulfur hexafluoride gas filtering device, which comprises a gas inlet pipe, a filtering box and an exhaust pipe, the gas inlet end of the gas inlet pipe and the exhaust end of the exhaust pipe are respectively provided with a gas flow sensor, and the outer surface of the top of the filtering box is fixedly provided with a motor. The outer surface of a rotating rod is fixedly sleeved with a driving bevel gear, the outer surface of a rotating shaft is fixedly sleeved with a driven bevel gear, a filter element is installed in a filter frame, the outer surface, away from the rotating shaft, of a connecting plate is fixedly connected with a cleaning brush, and a controller is installed on the outer surface of a filter box. According to the sulfur hexafluoride gas filtering device, the airflow value is detected through the airflow sensor, a signal is sent to the controller, the controller receives the signal and sends the signal to the motor, the motor drives the rotating rod, the driving bevel gear, the driven bevel gear and the cleaning brush are matched to clean the filter element in time, and the alarm is matched to remind people to replace the filter element in time.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filtering, in particular to a sulfur hexafluoride gas filtering device. Background Art

[0002] Sulfur hexafluoride gas is a colorless, odorless, non-flammable, non-toxic inert gas with excellent insulation properties and will not age or deteriorate. Under standard atmospheric pressure, liquefaction occurs at minus 62 degrees Celsius. Under the action of arc and corona, sulfur hexafluoride gas will decompose to produce low-fluorine compounds, which will cause damage to insulating materials. The decomposition reaction of sulfur hexafluoride has a lot to do with moisture, so dehumidification is necessary. At present, sulfur hexafluoride gas detection equipment is generally used to detect the moisture contained in sulfur hexafluoride gas. During the test, in order to prevent some solid impurities from being brought into the detection equipment through sulfur hexafluoride gas during the test, it is necessary to filter it.

[0003] In actual use of existing sulfur hexafluoride gas filtering devices, the filter element reaches saturation after a period of adsorption. In order to ensure its use effect, it needs to be cleaned or replaced. However, most of the existing sulfur hexafluoride gas filtering devices cannot timely judge the blockage of the filter element. When replacing the filter element, it depends on the use time of the filter element, which is easy to cause untimely cleaning or replacement of the filter element, resulting in poor filtering effect of sulfur hexafluoride. Therefore, a sulfur hexafluoride gas filtering device is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a sulfur hexafluoride gas filtering device to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sulfur hexafluoride gas filtering device, comprising an intake pipe, a filter box and an exhaust pipe, the intake end of the intake pipe and the exhaust end of the exhaust pipe are both equipped with air flow sensors, a rotating shaft is arranged inside the filter box, a motor is fixedly arranged on the top outer surface of the filter box, a rotating rod is rotatably connected to the top inner surface of the filter box, the output end of the motor is fixedly connected to the rotating rod, an active bevel gear is fixedly sleeved on the outer surface of the rotating rod, a driven bevel gear is fixedly sleeved on the outer surface of the rotating shaft, the active bevel gear is movably meshed with the outer surface of the driven bevel gear, a filter frame is arranged on the inner surface of the filter box, a filter element is installed inside the filter frame, a connecting plate is fixedly connected to the outer surface of the rotating shaft, a cleaning brush is fixedly connected to the outer surface of the connecting plate away from the rotating shaft, a controller is installed on the outer surface of the filter box, and the controller is electrically connected to the air flow sensor and the motor.

[0006] Furthermore, the left and right outer surfaces of the filter box are fixedly connected with connecting pipes, the left connecting pipe and the outer surface of the intake pipe are both installed with a first flange, and the right connecting pipe and the outer surface of the exhaust pipe are both installed with a second flange.

[0007] Furthermore, the outer surface of the bottom of the filter box is fixedly connected to a receiving frame, and the outer surface of the receiving frame is provided with a sealing cover.

[0008] Furthermore, a plurality of springs are fixedly connected to the outer surface of the connecting plate, and the other ends of the plurality of springs are fixedly connected to the cleaning brush.

[0009] Furthermore, a plurality of movable rods are movably inserted on the outer surface of the connecting plate, the other ends of the plurality of movable rods are fixedly connected to the cleaning brush, and the plurality of springs are respectively sleeved on the outer surfaces of the plurality of springs.

[0010] Furthermore, a plurality of fan blades are fixedly mounted on the outer surface of the rotating shaft.

[0011] Furthermore, a U-shaped frame is fixedly connected to the inner surface of the filter box, a U-shaped slot is provided inside the U-shaped frame, the filter frame is movably abutted against the inside of the U-shaped slot, and sealing gaskets are fixedly connected to the outer surfaces of the filter frame.

[0012] Furthermore, an alarm is installed on the outer surface of the filter box, and the controller is electrically connected to the alarm.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The sulfur hexafluoride gas filtering device detects the airflow value through the airflow sensor and sends a signal to the controller. The controller receives the signal and sends a signal to the motor. The motor drives the rotating rod to cooperate with the active bevel gear, the driven bevel gear and the cleaning brush to clean or replace the filter element in time, and cooperate with the alarm to remind personnel to replace the filter element in time.

[0015] 2. When the filter element inside the filter box of the sulfur hexafluoride gas filter device needs to be replaced, the first flange and the second flange are disassembled, thereby disassembling the filter box, and then the filter element inside the filter box is disassembled and replaced, thereby facilitating the disassembly and replacement of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 3This is a schematic diagram of the internal structure of the filter box of the utility model;

[0019] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 This is a schematic diagram of the filter frame structure of the utility model.

[0021] In the figure: 1. Intake pipe; 2. Filter box; 3. Exhaust pipe; 4. Rotating shaft; 5. Driven bevel gear; 6. Rotating rod; 7. Motor; 8. Driving bevel gear; 9. Connecting plate; 10. Movable rod; 11. Cleaning brush; 12. Filter frame; 13. Filter element; 14. First flange; 15. Second flange; 16. Receiving box; 17. Airflow sensor; 18. Fan blade. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Please refer to Figure 1-Figure 4The utility model provides a technical solution: a sulfur hexafluoride gas filtering device, comprising an air intake pipe 1, a filter box 2 and an exhaust pipe 3, an air flow sensor 17 is installed at the air intake end of the air intake pipe 1 and the exhaust end of the exhaust pipe 3, a rotating shaft 4 is arranged inside the filter box 2, a motor 7 is fixedly installed on the top outer surface of the filter box 2, a rotating rod 6 is rotatably connected to the top inner surface of the filter box 2, an output end of the motor 7 is fixedly connected to the rotating rod 6, an active bevel gear 8 is fixedly sleeved on the outer surface of the rotating rod 6, a driven bevel gear 5 is fixedly sleeved on the outer surface of the rotating shaft 4, the active bevel gear 8 is movably meshed with the outer surface of the driven bevel gear 5, a filter frame 12 is arranged on the inner surface of the filter box 2, a filter element 13 is installed inside the filter frame 12, a connecting plate 9 is fixedly connected to the outer surface of the rotating shaft 4, a cleaning brush 11 is fixedly connected to the outer surface of the connecting plate 9 away from the rotating shaft 4, a controller is installed on the outer surface of the filter box 2, and the controller is not drawn in the figure. The controller is electrically connected to the air flow sensor 17 and the motor 7. In the present embodiment, sulfur hexafluoride gas enters from the air inlet pipe 1, and the sulfur hexafluoride gas is filtered through the filter box 2, and the sulfur hexafluoride gas is filtered through the filter element 13, and the particulate matter mixed in the gas is adsorbed. The air flow sensor 17 at the air inlet pipe 1 senses the air flow at the inlet, and the air flow sensor 17 at the exhaust pipe 3 senses the air flow at the outlet. When there is a certain difference between the air flow at the air inlet and the air outlet, a signal is sent to the controller, and the controller makes the motor 7 work. The motor 7 drives the rotating rod 6 to rotate, and the active bevel gear 8 rotates. The active bevel gear 8 drives the driven bevel gear 5 to rotate, so that the rotating shaft 4 rotates, thereby driving the cleaning brush 11 to clean the surface of the filter element 13. After the motor 7 drives the cleaning brush 11 to work, there is still a certain difference between the two air flow sensors 17, and the filter element 13 needs to be replaced.

[0024] The left and right outer surfaces of the filter box 2 are fixedly connected with connecting pipes, the left connecting pipe and the outer surface of the intake pipe 1 are installed with a first flange 14, and the right connecting pipe and the outer surface of the exhaust pipe 3 are installed with a second flange 15. In this embodiment, when it is necessary to replace the filter element 13 inside the filter box 2, the first flange 14 and the second flange 15 are disassembled, thereby disassembling the filter box 2, and then the filter element 13 inside the filter box 2 is disassembled and replaced.

[0025] The bottom outer surface of the filter box 2 is fixedly connected to a receiving frame, and a sealing cover is provided on the outer surface of the receiving frame. In this embodiment, the cleaning brush 11 cleans the surface of the filter element 13, and the cleaned particulate impurities fall into the receiving box 16 for collection.

[0026] A plurality of springs are fixedly connected to the outer surface of the connecting plate 9 , and the other ends of the plurality of springs are fixedly connected to the cleaning brush 11 . In this embodiment, under the elastic force of the springs, the cleaning brush 11 is closely attached to the outer surface of the filter element 13 .

[0027] A plurality of movable rods 10 are movably inserted into the outer surface of the connecting plate 9, the other ends of the plurality of movable rods 10 are fixedly connected to the cleaning brush 11, and a plurality of springs are respectively sleeved on the outer surfaces of the plurality of springs. In this embodiment, by providing the movable rods 10, the springs are prevented from tilting and deforming when the connecting plate 9 rotates.

[0028] A plurality of fan blades 18 are fixedly sleeved on the outer surface of the rotating shaft 4. In this embodiment, when the rotating shaft 4 is in operation, the fan blades 18 are driven to work, thereby accelerating the flow rate of the sulfur hexafluoride gas.

[0029] A U-shaped frame is fixedly connected to the inner surface of the filter box 2, a U-shaped slot is provided inside the U-shaped frame, the filter frame 12 is movably abutted against the inside of the U-shaped slot, and sealing gaskets are fixedly connected to the outer surfaces of the filter frame 12 all around. In this embodiment, the sealing gasket is used to increase the sealing between the filter frame 12 and the U-shaped slot.

[0030] An alarm (not shown) is installed on the outer surface of the filter box 2, and the controller is electrically connected to the alarm. In this embodiment, when the motor 7 drives the cleaning brush 11 to work, there is still a certain difference between the two airflow sensors 17. The controller sends a signal to the external alarm to remind the staff to replace the filter element 13.

[0031] Working principle: When the utility model is in use, the sulfur hexafluoride gas to be treated enters from the air inlet pipe 1, the sulfur hexafluoride gas is filtered through the filter box 2, and the sulfur hexafluoride gas is filtered and treated by the filter element 13, and the particles mixed in the gas are adsorbed, the air flow sensor 17 at the air inlet pipe 1 senses the air flow at the inlet, and the air flow sensor 17 at the exhaust pipe 3 senses the air flow at the outlet. When there is a certain difference between the air flow at the air inlet and the air outlet, a signal is sent to the controller, the controller makes the motor 7 work, and the motor 7 drives the rotating rod 6 rotates, and makes the active bevel gear 8 rotate, and the active bevel gear 8 drives the driven bevel gear 5 to rotate, so that the rotating shaft 4 rotates. When the rotating shaft 4 works, it drives the fan blades 18 to work, so as to speed up the circulation speed of the sulfur hexafluoride gas, and the rotating shaft 4 drives the cleaning brush 11 to clean the surface of the filter element 13, and the cleaned particulate impurities fall into the receiving box 16 for collection. When the motor 7 drives the cleaning brush 11 to work, there is still a certain difference between the two airflow sensors 17, and the controller sends a signal to the external alarm to remind the staff to replace the filter element 13.

[0032] When the filter element 13 in the filter box 2 needs to be replaced, the first flange 14 and the second flange 15 are disassembled, thereby disassembling the filter box 2, and then the filter element 13 in the filter box 2 is disassembled and replaced.

[0033] The controller is an existing structure, and the control circuit can be implemented through simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sulfur hexafluoride gas filtering device, comprising an air inlet pipe (1), a filter box (2) and an exhaust pipe (3), characterized in that: An air flow sensor (17) is installed at the air intake end of the air intake pipe (1) and the exhaust end of the exhaust pipe (3); a rotating shaft (4) is arranged inside the filter box (2); a motor (7) is fixedly installed on the top outer surface of the filter box (2); a rotating rod (6) is rotatably connected to the top inner surface of the filter box (2); an output end of the motor (7) is fixedly connected to the rotating rod (6); a driving bevel gear (8) is fixedly sleeved on the outer surface of the rotating rod (6); and a driven bevel gear (8) is fixedly sleeved on the outer surface of the rotating shaft (4). 5), the active bevel gear (8) is movably meshed with the outer surface of the driven bevel gear (5), the inner surface of the filter box (2) is provided with a filter frame (12), a filter element (13) is installed inside the filter frame (12), the outer surface of the rotating shaft (4) is fixedly connected to a connecting plate (9), the outer surface of the connecting plate (9) away from the rotating shaft (4) is fixedly connected to a cleaning brush (11), and the outer surface of the filter box (2) is installed with a controller, and the controller is electrically connected to the airflow sensor (17) and the motor (7).

2. A sulfur hexafluoride gas filtering device according to claim 1, characterized in that: The left and right outer surfaces of the filter box (2) are both fixedly connected with connecting pipes, the left connecting pipe and the outer surface of the air inlet pipe (1) are both installed with a first flange (14), and the right connecting pipe and the outer surface of the exhaust pipe (3) are both installed with a second flange (15).

3. A sulfur hexafluoride gas filtering device according to claim 1, characterized in that: The outer surface of the bottom of the filter box (2) is fixedly connected to a receiving frame, and the outer surface of the receiving frame is provided with a sealing cover.

4. A sulfur hexafluoride gas filtering device according to claim 1, characterized in that: A plurality of springs are fixedly connected to the outer surface of the connecting plate (9), and the other ends of the plurality of springs are fixedly connected to the cleaning brush (11).

5. A sulfur hexafluoride gas filtering device according to claim 4, characterized in that: A plurality of movable rods (10) are movably inserted into the outer surface of the connecting plate (9), the other ends of the plurality of movable rods (10) are fixedly connected to the cleaning brush (11), and the plurality of springs are respectively sleeved on the outer surfaces of the plurality of springs.

6. A sulfur hexafluoride gas filtering device according to claim 1, characterized in that: The outer surface of the rotating shaft (4) is fixedly sleeved with a plurality of fan blades (18).

7. A sulfur hexafluoride gas filtering device according to claim 1, characterized in that: The inner surface of the filter box (2) is fixedly connected to a U-shaped frame, a U-shaped slot is provided inside the U-shaped frame, the filter frame (12) is movably abutted against the inside of the U-shaped slot, and the outer surfaces of the filter frame (12) are fixedly connected to sealing gaskets.

8. The sulfur hexafluoride gas filtering device according to claim 1, characterized in that: An alarm is installed on the outer surface of the filter box (2), and the controller is electrically connected to the alarm.

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