Double-floating-ball gas relay

Abstract

The utility model discloses a double-floating-ball gas relay which comprises a lower seat, an upper seat is arranged on the upper portion of the lower seat, a fixing bolt is arranged between the upper seat and the lower seat, a junction box is arranged on the upper portion of the upper seat, wiring holes are formed in the two sides of the junction box, a plurality of groups of binding posts are arranged in the junction box, and the binding posts are arranged in the junction box. And a supporting frame is arranged in the lower seat, and a splitter plate is arranged on the inner side of the supporting frame. When the state of the floating ball, the flow rate plate or the probe system changes, the reed pipe is triggered to generate electric signals, and the electric signals are output to an external system through the binding post and the wiring hole in the junction box and used for indicating the gas state or fault condition in the system where the relay is located. According to the double-floating-ball gas relay, the gathering and flowing conditions of gas in a system are detected, the mechanical linkage effect of the floating balls, the flow rate plate and the probe system is utilized, and the electric signal conversion function of the reed pipe is utilized, so that early detection and alarm of faults in the system are achieved.

Description

Technical Field

[0001] This utility model relates to the field of dual-float gas relay technology, and more specifically to a dual-float gas relay. Background Technology

[0002] A float gas relay is an important accessory for electrical equipment, primarily used for fault protection in oil-immersed transformers and other electrical equipment. Its core working principle is based on the buoyancy changes of a float and the accumulation characteristics of gas. The relay contains a float. When a fault occurs inside the transformer, such as localized overheating or arcing, a large amount of gas is generated. This gas rises in the transformer oil and accumulates in the gas chamber at the top of the relay. As the amount of gas in the chamber increases, the float rises accordingly, triggering the relay's operating mechanism. Once the float reaches a certain position, the relay will issue an alarm signal, alerting maintenance personnel to a potential fault inside the transformer. If the gas volume continues to increase, the relay may further activate, cutting off the power supply to the transformer to prevent the fault from escalating and damaging the equipment.

[0003] If a transformer malfunctions, whether internal or external, these changes will gradually be reflected in the gas relay. However, traditional gas relays are costly to implement, difficult to promote, and provide inaccurate monitoring results. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a dual-float gas relay, which solves the problem that if there is a fault in the transformer, whether it is an internal or external fault, these situations will cause changes in the transformer, and these changes will gradually be reflected in the gas relay. However, traditional gas relays are costly to implement, difficult to promote, and have inaccurate monitoring results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-float gas relay, comprising: a lower base, an upper base being provided on the upper part of the lower base and a fixing bolt being provided between the upper base and the lower base; a junction box being provided on the upper part of the upper base and wiring holes being provided on both sides of the junction box; a plurality of sets of wiring posts being provided inside the junction box; connecting flanges being provided on both sides of the lower base; a support frame being provided inside the lower base and a flow divider plate being provided on the inner side of the support frame; two sets of connecting shafts being provided on the inner side of the support frame and suspension plates being provided on the surface of the connecting shafts; an upper float and a lower float being respectively provided on the inner side of the suspension plates; the upper float being located above the flow divider plate and the lower float being located below the flow divider plate; the upper float and the lower float being rotatably connected to the support frame through suspension plates and connecting shafts; a flow velocity plate being provided on the surface of the connecting shaft of the suspension plate located on the lower float and a mounting bracket being provided on the side of the flow velocity plate; a spring bracket being provided on the side of the flow velocity plate and a flow velocity spring being provided on the side of the spring bracket; the flow velocity plate being provided with a spring spring; and the flow velocity plate being provided with a spring spring. A speed spring extends to the other side of the flow plate and is equipped with a spring connecting seat. The spring connecting seat is connected to the mounting frame. Reed tube brackets are provided on both sides of the mounting frame and one side of the support frame. A first reed tube is installed inside the reed tube bracket on the side of the support frame, and a second reed tube is installed inside the reed tube brackets on both sides of the mounting frame. Two sets of the first reed tubes are provided and are located on both sides of the upper float and the lower float, respectively. A probe seat is provided on the surface of the upper seat, and a probe rod is provided at the lower part of the probe seat. A probe handle is provided at the lower part of the probe rod, and a probe connecting rod is provided at the other end of the probe handle. The probe connecting rod is rotatably connected to the probe handle, and a connecting rod is installed on the outside of the probe connecting rod. A fixed frame is provided on the side of the support frame, and the probe connecting rod is connected to and slidably connected to the support frame. A spring post is provided on the surface of the probe connecting rod, and the spring post is in contact with the connecting rod and the fixed frame. A movable groove is provided inside the support frame, and one end of the connecting rod is located inside the movable groove.

[0006] In a preferred embodiment of the present invention, windows are provided on both sides of the lower seat, and window baffles are provided on the surface of the windows.

[0007] In a preferred embodiment of this utility model, the surface of the upper seat is provided with a vent valve, and the side of the vent valve is provided with a valve cap and an adjustment knob.

[0008] In a preferred embodiment of this utility model, a drain plug is provided at the bottom of the lower seat.

[0009] In a preferred embodiment of the present invention, the upper part of the probe holder is provided with a probe cap, and the probe cap is cylindrical in shape.

[0010] In a preferred embodiment of this utility model, an adjusting nut is provided between the mounting bracket and the spring connecting seat, and a locking nut is provided on the other side.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model features an upper seat above a lower seat, with fixing bolts connecting the upper and lower seats. A junction box is located on the upper part of the upper seat, with wiring holes on both sides. Several sets of wiring posts are located inside the junction box. Connecting flanges are located on both sides of the lower seat. A support frame is located inside the lower seat, with a flow divider plate on its inner side. Two sets of connecting shafts are located inside the support frame, with suspension plates on their surfaces. An upper float and a lower float are respectively located inside the suspension plates, with the upper float positioned above the flow divider plate and the lower float positioned below it. Both the upper and lower floats are connected to the support frame via the suspension plates and connecting shafts. A rotating connection is used. A flow plate is provided on the connecting shaft surface of the suspension plate located on the lower float, and a mounting bracket is provided on the side of the flow plate. A spring bracket is provided on the side of the flow plate, and a flow spring is provided on the side of the spring bracket. The flow spring extends to the other side of the flow plate and is equipped with a spring connecting seat. The spring connecting seat is connected to the mounting bracket. Reed tube brackets are provided on both sides of the mounting bracket and on one side of the support frame. A first reed tube is installed inside the reed tube bracket on the side of the support frame, and a second reed tube is installed inside the reed tube brackets on both sides of the mounting frame. Two sets of first reed tubes are provided and are located on both sides of the upper and lower floats, respectively. The surface of the device is provided with a probe holder, and the lower part of the probe holder is provided with a probe rod. The lower part of the probe rod is provided with a probe handle, and the other end of the probe handle is provided with a probe connecting rod. The probe connecting rod and the probe handle are rotatably connected, and a connecting rod is installed on the outside of the probe connecting rod. A fixed frame is provided on the side of the support frame, and the probe connecting rod is connected to and slidably connected to the support frame. A spring post is provided on the surface of the probe connecting rod, and the spring post is in contact with the connecting rod and the fixed frame. A movable groove is provided inside the support frame, and one end of the connecting rod is located inside the movable groove. When a fault occurs inside the transformer where the relay is located, gas is generated. This gas will... Inside the electrical system, the upper and lower floats rise or fall according to the gas accumulation. The upper float is located at the top of the flow divider plate, and the lower float is located at the bottom. When the gas rises, the upper float rises due to buoyancy; when the gas falls or the pressure decreases, the lower float may fall due to gravity or changes in external pressure. The movement of these two floats is connected to the support frame via suspension plates and connecting shafts, so their motion can be converted into mechanical signals. The flow plate is connected to the mounting frame via spring brackets and flow springs, forming an elastic system. When the gas flows, the flow plate is subjected to the impact force of the gas, thus causing displacement.This displacement further affects the state of the spring support and the flow velocity spring, thereby altering the mechanical balance of the entire system. The first reed is installed inside the reed support on the side of the support frame, corresponding to the two sides of the upper and lower floats. When the float moves to a specific position, it triggers the first reed to generate an electrical signal. Simultaneously, the second reed is installed inside the reed supports on both sides of the mounting frame. It is triggered by the movement of the flow velocity plate, generating an additional electrical signal. The probe seat, probe rod, probe handle, probe connecting rod, spring post, and connecting rod together constitute a probe system. When the float moves or the flow velocity plate displaces, it affects the state of the probe connecting rod and the spring post. The sliding connection of the probe rod and the contact of the spring column ensure that the system maintains appropriate tension and stability under different conditions. Finally, when the state of the float, flow plate, or probe system changes, it triggers the reed switch to generate an electrical signal. These electrical signals are output to the external system through the terminals and holes in the junction box to indicate the gas state or fault condition inside the system where the relay is located. This dual-float gas relay detects the accumulation and flow of gas inside the system, utilizes the mechanical linkage of the float, flow plate, and probe system, and the electrical signal conversion function of the reed switch to achieve early detection and alarm of internal system faults. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the present invention from another angle.

[0016] In the diagram: 1. Lower seat; 2. Upper seat; 3. Fixing bolt; 4. Junction box; 5. Wiring hole; 6. Vent valve; 7. Probe cap; 8. Viewing window baffle; 9. Connecting flange; 10. Terminal block; 11. Valve cap; 12. Adjusting knob; 13. Probe seat; 14. Probe rod; 15. Probe handle; 16. Connecting rod; 17. Probe connecting rod; 18. Spring post; 19. Fixing bracket; 20. Movable groove; 21. Support frame; 22. Diverter plate; 23. Upper float; 24. Lower float; 25. Suspension plate; 26. First reed tube; 27. Connecting shaft; 28. Flow plate; 29. ​​Mounting bracket; 30. Reed tube bracket; 31. Second reed tube; 32. Flow spring; 33. Spring connecting seat; 34. Adjusting nut; 35. Locking nut. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a dual-float gas relay, comprising: a lower base 1, an upper base 2 provided on the upper part of the lower base 1, and a fixing bolt 3 provided between the upper base 2 and the lower base 1; a junction box 4 provided on the upper part of the upper base 2, and wiring holes 5 provided on both sides of the junction box 4; a plurality of sets of wiring posts 10 provided inside the junction box 4; connecting flanges 9 provided on both sides of the lower base 1; a support frame 21 provided inside the lower base 1, and a diverter plate 22 provided on the inner side of the support frame 21; two sets of connecting shafts 27 provided on the inner side of the support frame 21, and the surface of the connecting shafts 27 is provided with... A suspension plate 25 is provided, and an upper float 23 and a lower float 24 are respectively provided on the inner side of the suspension plate 25. The upper float 23 is located above the flow divider plate 22 and the lower float 24 is located below the flow divider plate 22. The upper float 23 and the lower float 24 are rotatably connected to the support frame 21 through the suspension plate 25 and the connecting shaft 27. A flow velocity plate 28 is provided on the surface of the connecting shaft 27 of the suspension plate 25 located on the lower float 24, and a mounting bracket 29 is provided on the side of the flow velocity plate 28. A spring bracket is provided on the side of the flow velocity plate 28, and a flow velocity spring 32 is provided on the side of the spring bracket. The flow velocity spring 32 extends to the flow velocity plate 28. On the other side of plate 28, a spring connecting seat 33 is installed, which is connected to mounting bracket 29. Reed tube brackets 30 are provided on both sides of mounting bracket 29 and one side of support bracket 21. A first reed tube 26 is installed inside the reed tube bracket 30 on the side of support bracket 21, and a second reed tube 31 is installed inside the reed tube brackets 30 on both sides of mounting bracket 29. Two sets of the first reed tube 26 are provided, located on both sides of upper float 23 and lower float 24 respectively. A probe seat 13 is provided on the surface of upper seat 2, and a probe rod 14 is provided at the lower part of probe seat 13. A probe handle 15 is provided at the lower part of the rod 14, and a probe connecting rod 17 is provided at the other end of the probe handle 15. The probe connecting rod 17 is rotatably connected to the probe handle 15, and a connecting rod 16 is installed on the outside of the probe connecting rod 17. A fixing frame 19 is provided on the side of the support frame 21, and the probe connecting rod 17 is connected to and slidably connected to the support frame 21. A spring post 18 is provided on the surface of the probe connecting rod 17, and the spring post 18 is in contact with the connecting rod 16 and the fixing frame 19. A movable groove 20 is provided inside the support frame 21, and one end of the connecting rod 16 is located inside the movable groove 20.

[0019] Further improvements, such as Figure 1 As shown: Both sides of the lower seat 1 are provided with viewing windows and the surface of the viewing windows is provided with viewing window baffles 8. Operators can intuitively observe the working status inside the dual float gas relay through the viewing windows, including the up and down floating of the floats, the accumulation of gas, etc., which facilitates daily maintenance and troubleshooting.

[0020] Further improvements, such as Figure 1 As shown: The surface of the upper seat 2 is provided with a vent valve 6, and the side of the vent valve 6 is provided with a valve cap 11 and an adjustment knob 12. The vent valve 6 allows for the release of gas inside the relay when necessary. For example, when too much gas inside the relay affects normal operation, some gas can be released through the vent valve 6 to restore the relay to normal operation.

[0021] Further improvements, such as Figure 1 As shown: The bottom of the lower seat 1 is provided with a drain plug. The design of the drain plug allows dirt or sediment inside the relay to be easily discharged, avoiding the impact of these dirt on the normal operation of the relay.

[0022] Further improvements, such as Figure 1 As shown: The upper part of the probe holder 13 is provided with a probe cap 7, and the probe cap 7 is cylindrical in shape. The design of the probe cap 7 protects the probe system from external contamination or mechanical damage. At the same time, its cylindrical structure facilitates a tight connection with the probe holder 13, ensuring the stability and reliability of the probe system.

[0023] Further improvements, such as Figure 3 As shown: An adjusting nut 34 is provided between the mounting bracket 29 and the spring connecting seat 33, and a locking nut 35 is provided on the other side. This arrangement makes the connection between the flow plate 28 and the mounting bracket 29 more flexible and adjustable. The relative position between the flow plate 28 and the mounting bracket 29 can be adjusted by adjusting the nut 34, thereby changing the response sensitivity of the flow plate 28 to gas flow. The locking nut 35 ensures the stability of the adjusted position and prevents loosening caused by vibration or external force.

[0024] Working principle: When a fault occurs inside the transformer where the relay is located, gas is generated. This gas will accumulate inside the relay. The upper float 23 and the lower float 24 will rise or fall according to the accumulation of gas. The upper float 23 is located at the upper part of the diverter plate 22, and the lower float 24 is located at the lower part of the diverter plate 22. When the gas rises, the upper float 23 rises due to buoyancy. When the gas falls or the pressure decreases, the lower float 24 may fall due to gravity or changes in external pressure. The movement of these two floats is connected to the support frame 21 through the suspension plate 25 and the connecting shaft 27, respectively. Therefore, their movement state can be converted into a mechanical signal. The flow plate 28 is connected to the mounting frame 29 through the spring bracket and the flow spring 32 to form an elastic system. When the gas flows, the flow plate 28 will be subjected to the impact force of the gas, thereby causing displacement. This displacement further affects the state of the spring support and the flow spring 32, thereby changing the mechanical balance of the entire system. The first reed 26 is installed inside the reed support 30 on the side of the support frame 21, corresponding to the two sides of the upper float 23 and the lower float 24. When the float moves to a specific position, it will trigger the first reed 26 to generate an electrical signal. At the same time, the second reed 31 is installed inside the reed support 30 on both sides of the mounting frame 29. It is triggered by the movement of the flow plate 28 and generates an additional electrical signal. The probe seat 13, probe rod 14, probe handle 15, probe connecting rod 17, spring post 18 and connecting rod 16 together constitute a probe system. When the float moves or the flow plate 28 is displaced, it affects the probe. The states of connecting rod 17 and spring column 18, the sliding connection of probe connecting rod 17 and the contact of spring column 18 ensure that the system maintains appropriate tension and stability under different states. Finally, when the state of float, flow plate 28 or probe system changes, it triggers reed switch to generate an electrical signal. These electrical signals are output to the external system through terminal 10 and terminal 5 in junction box 4 to indicate the gas state or fault condition inside the system where the relay is located. This dual float gas relay detects the accumulation and flow of gas inside the system, utilizes the mechanical linkage of float, flow plate 28 and probe system, and the electrical signal conversion function of reed switch to achieve early detection and alarm of internal faults in the system.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual float ball gas relay characterized by: Include: Lower seat (1), the upper part of the lower seat (1) is provided with the upper seat (2), and the fixed bolt (3) is arranged between the upper seat (2) and the lower seat (1), the upper part of the upper seat (2) is provided with the terminal box (4), and the terminal box (4) is provided with the terminal hole (5) on both sides, the inside of the terminal box (4) is provided with several groups of terminal posts (10), the both sides of the lower seat (1) are provided with the connecting flange (9), the inside of the lower seat (1) is provided with the support frame (21), and the inside of the support frame (21) is provided with the shunt plate (22), the inside of the support frame (21) is provided with two groups of connecting shafts (27), and the surface of the connecting shaft (27) is provided with the suspension piece (25), the inside of the suspension piece (25) is respectively provided with the upper floating ball (23) and the lower floating ball (24), the upper floating ball (23) is located on the upper part of the shunt plate (22), and the lower floating ball (24) is located on the lower part of the shunt plate (22), the upper floating ball (23) and the lower floating ball (24) are rotatably connected between the suspension piece (25), the connecting shaft (27) and the support frame (21), the surface of the connecting shaft (27) of the suspension piece (25) located on the lower floating ball (24) is provided with the flow rate plate (28), and the side surface of the flow rate plate (28) is provided with the mounting bracket (29), the side surface of the flow rate plate (28) is provided with the spring support, and the side surface of the spring support is provided with the flow rate spring (32), the flow rate spring (32) extends to the other side of the flow rate plate (28) and is provided with the spring connecting seat (33), the spring connecting seat (33) is connected between the mounting bracket (29), the both sides of the mounting bracket (29) and the side of the support frame (21) are provided with the reed tube support (30), the inside of the reed tube support (30) on the side of the support frame (21) is provided with the first reed tube (26), and the inside of the reed tube support (30) on the both sides of the mounting bracket (29) is provided with the second reed tube (31), the first reed tube (26) is provided with two groups and is located on the both sides of the upper floating ball (23) and the lower floating ball (24), the surface of the upper seat (2) is provided with the probe seat (13), and the lower part of the probe seat (13) is provided with the probe rod (14), the lower part of the probe rod (14) is provided with the probe pressing handle (15), and the other end of the probe pressing handle (15) is provided with the probe connecting rod (17), the probe connecting rod (17) is rotatably connected between the probe pressing handle (15), and the outside of the probe connecting rod (17) is provided with the connecting rod (16), the side surface of the support frame (21) is provided with the fixing frame (19), the probe connecting rod (17) is connected between the support frame (21) and is slidably connected therewith, the surface of the probe connecting rod (17) is provided with the spring column (18), and the spring column (18) is in contact with the connecting rod (16) and the fixing frame (19), the inside of the support frame (21) is provided with the movable groove (20), and one end of the connecting rod (16) is located in the inside of the movable groove (20).

2. A dual-float gas relay according to claim 1, characterized in that: The both sides of the lower seat (1) are provided with the window, and the surface of the window is provided with the window baffle (8).

3. A dual-float gas relay according to claim 1, wherein: The surface of the upper seat (2) is provided with a gas release valve (6), and the side of the gas release valve (6) is provided with a valve cap (11) and an adjusting knob (12).

4. A dual-float gas relay according to claim 1, wherein: The bottom of the lower seat (1) is provided with a sewage plug.

5. A dual-float gas relay according to claim 1, wherein: The upper part of the probe seat (13) is provided with a probe cap (7) in a cylindrical structure.

6. A dual-float gas relay according to claim 1, wherein: An adjusting nut (34) is arranged between the mounting frame (29) and the spring connecting seat (33), and the other side is provided with a locking nut (35).

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