Intelligent monitor for abnormity of oil gas in transformer

Abstract

The invention discloses a transformer internal oil gas abnormity intelligent monitor, and relates to the technical field of intelligent monitors, the transformer internal oil gas abnormity intelligent monitor comprises a monitoring box, the monitoring box is internally provided with a monitoring body, the lower part of the monitoring box is provided with a transmission pipe, the transmission pipe is of a four-way structure, the first end of the transmission pipe is connected with a gas monitor, and the second end of the transmission pipe is connected with a power supply; the second end of the transmission pipe is fixedly provided with a sealing disc, the sealing disc is fixedly connected with the lower portion of the monitoring body, the third end of the transmission pipe is provided with an opening and closing mechanism, the opening and closing mechanism is used for achieving connection and disconnection of the fourth end and the first end of the transmission pipe, and the fourth end of the transmission pipe is used for being connected with a transformer oil tank. The upper part of the monitoring body is provided with an alarm assembly. The alarm assembly is started by detecting abnormal oil gas, and then the warning effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer monitoring, and in particular to an intelligent monitor for oil and gas anomalies inside a transformer. Background Art

[0002] Electrical equipment such as power transformers all use insulating structures composed of insulating oil or cardboard. When a circuit in the transformer tank fails, the high-temperature arc generated by the short-circuit current will cause the transformer oil to decompose and produce gas. These gases will dissolve in the oil, and the leakage of the transformer tank will also allow air to enter the transformer tank. The gas gathers at the top of the transformer tank. The increase in gas in the tank occupies the space of the transformer oil, resulting in a reduction in transformer oil, which in turn affects the cooling effect, insulation effect, and liquid sealing effect of the transformer oil on the transformer. When the transformer oil in the transformer tank is reduced, it will cause electrical failures in the transformer. Therefore, it is necessary to monitor the oil and gas inside the transformer.

[0003] A Chinese patent with publication number CN214225162U discloses an intelligent monitor for oil and gas anomalies inside a transformer, including a transformer oil pillow and a transformer oil tank, characterized in that it also includes a sealed box filled with transformer oil, a transparent vertical glass tube, a controller, a memory, a transformer fault monitoring platform and a wireless module; a box oil inlet hole is provided at the lower end of the right box wall of the sealed box, a box oil outlet hole is provided at the upper end of the right box wall of the sealed box, and an upper box hole is provided on the upper box wall of the sealed box; a box oil inlet pipe and a box oil outlet pipe are respectively connected in a sealed and fixed manner on the box oil inlet hole and the box oil outlet hole, the oil inlet end of the box oil inlet pipe is higher than the position of the upper end surface of the sealed box, and the oil outlet end of the box oil outlet pipe is lower than the lower end surface of the sealed box; a tube is provided with The lower end of the outer tube wall of the No. 1 vertical tube of the No. 1 one-way solenoid valve is sealed and fixedly connected in the upper box hole, and the lower tube mouth of the No. 1 vertical tube is aligned with the lower hole mouth of the upper box hole; a tension sensor is fixedly provided on the lower surface of the No. 1 one-way solenoid valve, and a buoyancy ball that can float on the transformer oil is also provided in the sealed box; the upper end of a No. 1 spring is fixedly connected to the draw hook of the tension sensor, and the lower end of the No. 1 spring is fixedly connected to the buoyancy ball, and when the No. 1 spring is in a vertical natural length state, the upper surface of the buoyancy ball just contacts and seals the lower tube mouth of the No. 1 vertical tube, and at this time, the tension sensor detects that the tension of the buoyancy ball is zero; the lower tube mouth of the transparent vertical glass tube is butt-connected to the upper tube mouth of the No. 1 vertical tube, and in the transparent A sealing slider is provided in the transparent vertical glass tube for sliding up and down in a sealed manner; thereby a gas color observation chamber is formed in the tube cavity of the transparent vertical glass tube between the No. 1 one-way solenoid valve and the sealing slider; a hood opening is sealed and connected to the outer surface of the upper box wall of the sealed box, and the transparent vertical glass tube is sealed in the hood; a background cloth A is provided in the hood located on the right side of the transparent vertical glass tube, and a camera No. 1 is provided in the hood located on the left side of the transparent vertical glass tube; a side wall exhaust hole is provided on the No. 1 vertical tube located above the No. 1 one-way solenoid valve, and the air inlet of an ignition detection air guide tube provided with a No. 2 one-way solenoid valve is sealed and fixedly connected to the side wall exhaust hole of the No. 1 vertical tube; at the air outlet of the ignition detection air guide tube An ignition device capable of remotely controlling ignition is provided on one side, and the ignition device can ignite the combustible gas ejected from the air outlet of the ignition detection air duct; a No. 2 camera is provided above the air outlet side of the ignition detection air duct; a lighting lamp is provided in the light shield; a gas detection sensor is provided in the gas color observation chamber located at the No. 1 one-way solenoid valve; a distance measuring sensor for detecting the height position of the sealing slider is provided downward at the upper end of the transparent vertical glass tube, and a limit block is fixedly provided on the inner wall of the transparent vertical glass tube below the distance measuring sensor; the oil inlet end of the box oil inlet pipe is sealed and fixedly connected to the oil outlet of the transformer oil pillow; the oil outlet end of the box oil outlet pipe is sealed and fixedly connected to the oil inlet of the transformer oil tank;The distance sensor, the control end of the lighting lamp, the memory, the wireless module, the control end of the No. 1 one-way solenoid valve, the tension sensor, the control end of the No. 1 camera, the control end of the No. 2 one-way solenoid valve, the control end of the ignition device, the No. 2 camera and the gas detection sensor are respectively connected to the controller; the controller is wirelessly connected to the transformer fault monitoring platform through the wireless module; the transformer internal oil and gas abnormality intelligent monitor also includes A transparent tube, B transparent tube sealed at both ends, A camera, A insulating conduit, B insulating conduit, oil pumping circulator, light shielding box, No. 1 LED light and B background cloth; the staff observes or shoots the transformer oil in A transparent tube and B transparent tube through A camera to obtain liquid color information. ;

[0004] A Chinese patent with publication number CN215641100U discloses a miniaturized online oil and gas monitoring device for transformers, comprising a monitoring device body, a mounting plate fixedly connected to the monitoring device body, a plurality of rotating rods symmetrically passing through the mounting plate and rotatably connected, a rectangular groove provided on the rotating rod, a rectangular rod slidably connected to the inner wall of the rectangular groove, a threaded rod fixedly connected to the end of the rectangular rod away from the rotating rod, a driven sprocket fixedly connected to the end of the rotating rod close to the monitoring device body, a rotating shaft rotatably connected to the monitoring device body, a transmission mechanism provided between the rotating shaft and the driven sprocket, and a driving mechanism provided between the monitoring device body and the rotating shaft. The transmission mechanism comprises a driving sprocket and a transmission chain, the driving sprocket is fixedly connected to the end of the rotating shaft away from the monitoring device body, the transmission chain is arranged on the driven sprocket and the driving sprocket, and the transmission chain is meshed and connected with the driven sprocket and the driving sprocket respectively. The driving mechanism includes a worm wheel, a fixed plate and a worm, wherein the worm wheel is fixedly connected to the rotating shaft, the fixed plate is fixedly connected to the monitoring device body, the worm is connected to the fixed plate through rotation, and the worm is meshed with the worm wheel. A turntable is fixedly connected to the end of the worm away from the monitoring device body, and the turntable is provided with anti-slip patterns. A liquid crystal display screen is provided on the monitoring device body, and the liquid crystal display screen is rectangular. An anti-corrosion layer is provided on the monitoring device body, and the anti-corrosion layer is chromium. When the utility model is used, the user aligns the threaded rod with the threaded hole reserved on the transformer, and then rotates the turntable to rotate the worm, drive the worm wheel to rotate, rotate the rotating shaft, drive the driving sprocket to rotate, and move the transmission chain, drive the driven sprocket to rotate, drive the rotating rod to rotate, drive the rectangular rod to rotate, and rotate the threaded rod. At the same time, the threaded rod moves into the threaded hole to complete the installation. The operation is simple and convenient, and the user does not need to tighten the bolts one by one for installation, thereby improving work efficiency. By providing a liquid crystal display screen, the user can check the device status and gas content by observing the liquid crystal display screen during use without using a computer. The operation is simple and convenient, and the work efficiency is improved.

[0005] A Chinese patent with publication number CN221860386U discloses an adjustable online monitoring device for gas in oil, including an oil tank, a sliding box is provided at the top of the oil tank, a sliding assembly is provided in the inner cavity of the sliding box, the bottom end of the sliding assembly extends to the inner cavity of the oil tank and is connected to a lifting assembly, and monitors are respectively provided on the front and rear sides of the lifting assembly, and the two monitors are respectively connected to the controller via Bluetooth. The sliding assembly includes a motor, a roller, a chute, a guide rod, a slide plate, a slider, a slideway and a connecting plate. The motor is arranged at the right end of the sliding box, and the output end of the motor extends to the inner cavity of the sliding box. One end of the roller is rotatably connected to the left side of the inner cavity of the sliding box through a bearing, and the other end of the roller is fixedly connected to the output end of the motor. The chute is provided on the outer wall of the roller, and the two guide rods are provided at the bottom end of the inner cavity of the sliding box. The slide plate can be slidably sleeved on the outer walls of the two guide rods, one end of the slider can be slidably embedded in the inner cavity of the chute, and the other end of the slider is fixedly connected to the slide plate. The slideway is provided at the bottom end of the sliding box, and the connecting plate can be slidably embedded in the inner cavity of the chute. One end of the connecting plate is fixedly connected to the bottom end of the slide plate, and the other end of the connecting plate is connected to the lifting assembly. The chute is spiral and connected end to end. The lifting assembly includes a screw, a driving assembly, a fixed plate, a fixed rod, a limit assembly and a lifting plate. One end of the screw is rotatably connected to the bottom end of the connecting plate through a bearing. The driving assembly is arranged at the top of the inner cavity of the oil tank and fixedly sleeved on the outer wall of the screw. The fixed plate can be slidably sleeved on the outer wall of the screw. The two fixed rods are arranged at the bottom end of the fixed plate. The limit assembly is arranged at the bottom ends of the two fixed rods. The lifting plate is screwed to the outer wall of the screw and can be slidably sleeved on the outer walls of the two fixed rods. The driving assembly includes a gear and a rack. The rack is arranged at the top of the inner cavity of the oil tank. The gear is fixedly sleeved on the outer wall of the screw. The rack is meshed with the gear. The limit assembly includes a limit slot and a limit plate. The limit slot is opened at the bottom end of the inner cavity of the oil tank. The limit plate can be slidably embedded in the inner cavity of the limit slot and is rotatably connected to the bottom end of the screw through a bearing. The top end of the limit plate is fixedly connected to the bottom ends of the two guide rods. The inner cavity of the limit groove is matched with the outer wall of the limit plate and both are dovetail-shaped. A refueling port is provided at the top of the oil tank. A sealing cover is screwed into the inner cavity of the refueling port. The utility model enables the monitor to slide left and right and up and down in the inner cavity of the oil tank through the joint action of the sliding component and the lifting component, thereby realizing the monitoring of transformer oil at different positions in the inner cavity of the oil tank, improving the flexibility of the device when in use, and solving the problem that the existing transformer oil monitoring devices are all installed at a fixed position on the inner wall of the transformer box. Although the dissolved gas in the transformer can be monitored online in real time, the transformer oil at different positions in the transformer box cannot be monitored, which leads to great limitations in use.

[0006] The Chinese patent with publication number CN220820017U discloses a gas monitoring device in transformer oil, including a transformer box, a groove is provided inside the transformer box, a monitoring component is arranged in the groove, the monitoring component can monitor the transformer oil gas in the groove, a depth observation component is detachably installed at one end of the transformer box, the depth observation component can cooperate with the monitoring component, so that when the monitoring component monitors the hydraulic oil gas at different depths in the transformer box, the staff can know the specific depth of the monitoring component, and a positioning component is arranged at one end of the transformer box, and the positioning component can fix the depth observation component. The monitoring component includes a bearing seat and a screw rod, the bearing seat is fixedly installed on the lower surface of the groove, one end of the screw rod passes through the upper end of the transformer box and is fixedly installed on the upper surface of the bearing seat, and the other end of the screw rod is fixedly installed with a turntable. An adjustment block is threadedly installed on the screw rod, and a monitoring sensor and a magnet are fixedly installed at both ends of the adjustment block, respectively, and the magnet can slide in the slide groove. The transformer box has a placement slot at one end, positioning slots are provided on both sides of the placement slot, a first through hole is provided on the positioning slot, and a stabilizing slot is provided at one end of the first through hole. The depth observation assembly includes a placement plate, positioning blocks are fixedly installed on both sides of the placement plate, the placement plate and the positioning block can be respectively snap-fitted and installed in the placement slot and the positioning slot, and a second through hole is provided on the upper surface of the positioning block. An adjustment slot is provided at one end of the placement plate, a scale is fixedly installed on both sides of the adjustment slot, an indicating block is slidably installed in the adjustment slot, and the indicating block can be adsorbed by a magnet, so that when the magnet slides in the slide slot, the indicating block also slides synchronously in the adjustment slot. The positioning assembly includes a top plate, a fixed plate is fixedly installed on both sides of the lower surface of the top plate, one end of the fixed plate can pass through the first through hole and the second through hole, a stabilizing block is fixedly installed on one end of the fixed plate, the stabilizing block is slidably installed in the stabilizing slot, a spring is fixedly installed on both sides of the lower surface of the top plate, and the lower end of the spring is fixedly connected to the upper end of the transformer box. The utility model adopts the design of monitoring components, depth observation components and positioning components, so that when the staff adjusts the monitoring components to monitor the transformer oil and gas at different depths in the transformer box, the specific mechanism of the depth observation component will move synchronously with the monitoring component, so that the staff can understand the specific depth of the monitoring component in the transformer box by watching the depth observation component; secondly, the depth observation component can be installed or disassembled according to the needs of use by cooperating with the positioning component, so as to facilitate the inspection and replacement of the depth observation component.

[0007] The above-mentioned prior art observes the state of oil and gas by observing the LCD screen during use, thereby facilitating personnel monitoring. However, when oil and gas abnormalities occur, it cannot promptly alert the personnel, resulting in equipment damage due to personnel negligence. Summary of the invention

[0008] The purpose of the present invention is to provide an intelligent monitor for oil and gas anomalies inside a transformer to solve the problem raised in the above background technology that the state of oil and gas can only be observed by observing the LCD display during use, and the staff cannot be warned in time when oil and gas anomalies occur, resulting in equipment damage due to negligence of personnel.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent monitor for oil and gas anomalies inside a transformer, comprising a monitoring box, a monitoring body inside the monitoring box, a transmission pipe at the bottom of the monitoring box, the transmission pipe being a four-way structure, a first end of the transmission pipe being connected to a gas monitor, a sealing disk being fixedly installed at the second end of the transmission pipe, and the sealing disk being fixedly connected to the bottom of the monitoring body, a third end of the transmission pipe being provided with an opening and closing mechanism, the opening and closing mechanism being used to connect and disconnect the fourth end of the transmission pipe with the first end, and the fourth end of the transmission pipe being used to connect to the transformer oil tank; the upper part of the monitoring body being provided with An alarm component, wherein the alarm component includes an alarm and an alarm light. The alarm has a controller inside, and the controller has a push switch for controlling the working status of the alarm and the alarm light. The monitoring body has a trigger component for triggering the push switch. The controller is connected to the gas monitor, the trigger component and the opening and closing mechanism through a transmission line. When the gas monitor detects abnormal gas, it sends abnormal data to the controller. At this time, the controller sends a signal to the opening and closing mechanism, so that the opening and closing mechanism starts to close the transmission pipe, and at the same time sends a signal to the trigger component, so that the trigger component triggers the push switch to start the alarm and the alarm light.

[0010] Furthermore, the bottom of the sealing disk has a first stud, and the first stud extends into the second end of the transmission tube and is threadedly connected thereto.

[0011] Furthermore, the top of the sealing disk is snap-connected with a limiting disk, the top of the limiting disk has a second stud, and the second stud is threadedly connected to the monitoring body.

[0012] Furthermore, the interior of the sealing disk has a circular installation cavity, the inner wall of the installation cavity has a limit assembly, the limit assembly includes a limit plate and a limit spring, one end of the limit spring is fixedly connected to the inner wall of the installation cavity, the other end of the limit spring is fixedly connected to the limit plate, the limit plate is an arc-shaped plate, the limit spring is compressed and causes the inner side wall of the limit plate to contact and press against the outer wall of the first stud.

[0013] Furthermore, the opening and closing mechanism includes a stepper motor, an output shaft and a valve core, the stepper motor is fixed in the bottom of the monitoring box, one end of the output shaft is fixedly connected to the output end of the stepper motor, and the other end of the output shaft is fixedly connected to the valve core, and the valve core is located at the intersection of the first end to the fourth end of the transmission tube. The stepper motor drives the valve core to rotate to achieve the connection and disconnection of the first end and the fourth end of the transmission tube.

[0014] Furthermore, a sealing tube is provided on the outer side of the output shaft, the sealing tube is fixedly connected to the third end of the transmission tube, and the output shaft is rotatably connected to the sealing tube.

[0015] Furthermore, the trigger assembly includes a sliding block, a positioning rod, a shift block and a driving mechanism, the positioning rod is fixed in the lower part of the alarm, the sliding block is slidably installed on the positioning rod, the shift block is fixed on the sliding block, the driving mechanism is used to drive the sliding block to move along the positioning rod, and the shift block triggers the push switch after contacting the push switch.

[0016] Furthermore, the driving mechanism includes a hydraulic cylinder, a pressing rod, a baffle, a connecting seat and a driving rod, the hydraulic cylinder is fixed on the top of the monitoring body, the lower end of the pressing rod is fixedly connected to the telescopic rod of the hydraulic cylinder, the upper end of the pressing rod is fixedly connected to the baffle, the connecting seat is fixed on the baffle, the lower end of the driving rod is hinged to the connecting seat, and the upper end of the driving rod is hinged to the sliding block; when the telescopic rod of the hydraulic cylinder moves up and down, the movement of the driving rod is driven by the pressing rod and the connecting seat, thereby driving the sliding block to move along the positioning rod.

[0017] Furthermore, a return spring is sleeved on the positioning rod, one end of the return spring is fixedly connected to the sliding block, and the other end of the return spring is fixedly connected to the alarm.

[0018] Furthermore, there are two sliding blocks, and the movement directions of the two sliding blocks are always opposite.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention connects the transformer oil tank with the transmission pipe. When the oil and gas in the transformer oil tank are abnormal, the gas in the oil tank enters the transmission pipe and can be detected by the gas monitor. At this time, the gas monitor uploads the detection data to the controller, and the controller sends an instruction to the opening and closing mechanism, so that the opening and closing mechanism disconnects the connection between the first end and the fourth end of the transmission pipe; at the same time, the controller sends a signal to the trigger component, so that the hydraulic cylinder of the trigger component is actuated, driving the pressing rod and the connecting seat to move upward, and then pushing the sliding block to move along the positioning rod through the driving rod. During the movement, the dial block on the sliding block touches the pressing switch and triggers the pressing switch, so that the alarm and the alarm light are in working state, thereby playing a warning role to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the present invention; Figure 2 A three-dimensional diagram of the internal structure of the present invention; Figure 3 A three-dimensional image of the monitoring body of the present invention; Figure 4 A three-dimensional diagram of the gas monitor and the transmission tube of the present invention; Figure 5 A three-dimensional diagram of the alarm and trigger assembly of the present invention; Figure 6 An assembly diagram of the alarm and trigger assembly of the present invention; Figure 7 It is an assembly diagram of the telescopic rod, the pressing rod and the baffle plate of the present invention; Figure 8 A three-dimensional diagram of the opening and closing mechanism of the present invention; Fig. 9 It is a three-dimensional assembly diagram of the sliding block, positioning rod, driving rod, connecting seat and baffle plate of the present invention; Fig.10 It is a three-dimensional diagram of the inner limiting assembly of the sealing disk of the present invention.

[0021] In the figure: 1. Monitoring box; 2. Bracket; 3. Box door; 4. Monitoring the main body; 5. Hydraulic cylinder; 6. Telescopic rod; 7. Protective shell; 8. Siren; 9. Warning light; 10. Press the lever; 11. Buffer spring; 12. Block plate; 13. Connecting seat; 14. Ear plate; 15. Driving rod; 16. Slider; 17. Positioning rod; 18. Return spring; 19. Dial block; 20. Controller; 21. Press the switch; 22. Stepper motor; 23. Output shaft; 24. Gas monitor; 25. Valve core; 26. Sealing tube; 27. Transmission pipe; 28. Sealing plate; 281, installation cavity; 282, first stud; 29. Limit plate; 291, second stud; 30. Limiting plate; 301, spring seat; 31. Limit spring; 32. Transmission line. DETAILED DESCRIPTION

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

[0023] like Figures 1 to 10 As shown, an intelligent monitor for abnormal oil and gas inside a transformer includes a monitoring box 1, which is the main component of the present invention. The bottom of the monitoring box 1 has a bracket 2 for supporting the monitoring box 1. Figure 1 As shown, the front side of the monitoring box 1 has a box door 3 that is easy to open. Figure 2 As shown, the monitoring box 1 has a monitoring body 4 inside, and a transmission pipe 27 at the bottom of the monitoring box 1. Figure 4 As shown, the transmission pipe 27 is a cross-shaped four-way structure. The transmission pipe 27 has four ports, namely the first end, the second end, the third end and the fourth end. The first end of the transmission pipe 27 is connected to the gas monitor 24. The gas monitor 24 is used to monitor the gas of the specific gas in the first end of the transmission pipe 27. The gas is generated after the transformer oil is decomposed. The second end of the transmission pipe 27 is fixedly installed with a sealing disk 28, and the sealing disk 28 is fixedly connected to the lower part of the monitoring body 4. The setting of the sealing disk 28 is used to realize the fixed connection between the transmission pipe 27 and the monitoring body 4. The first end of the transmission pipe 27 is horizontally arranged, the second end of the transmission pipe 27 is vertically arranged, and the third end of the transmission pipe 27 has an opening and closing mechanism. The opening and closing mechanism is used to realize the connection and disconnection between the fourth end of the transmission pipe 27 and the first end. The fourth end of the transmission pipe 27 is used to connect to the transformer oil tank. After the gas in the transformer oil tank enters the transmission pipe 27 through the fourth end of the transmission pipe 27, it is detected by the gas monitor 24 at the first end of the transmission pipe 27. The third end of the transmission tube 27 can also be a closed structure, in which case an external thread is provided at the third end of the transmission tube 27 to achieve a fixed connection between the third end of the transmission tube 27 and the sealing disk 28. When the third end of the transmission tube 27 is a hollow structure, the third end of the transmission tube 27 is provided with an internal thread.

[0024] To achieve fixed connection between the second end of the transmission tube 27 and the sealing disk 28, as Figure 8 , Fig.10 As shown, the bottom of the sealing disk 28 has a first stud 282, which extends into the second end of the transmission tube 27 and is threadedly connected thereto, and the first stud 282 is provided with an external thread. The top of the sealing disk 28 is snap-connected with the limit disk 29, and the top of the limit disk 29 has a second stud 291, which extends into the monitoring body 4 and is threadedly connected thereto.

[0025] like Fig.10 As shown, the sealing disk 28 has a circular mounting cavity 281 inside, and the inner wall of the mounting cavity 281 has a limiting assembly. The limiting assembly includes a limiting plate 30 and a limiting spring 31, one end of the limiting spring 31 is fixedly connected to the inner wall of the mounting cavity 281, and the other end of the limiting spring 31 is fixedly connected to the limiting plate 30. Specifically, the limiting plate 30 is an arc-shaped plate, and a spring seat 301 is provided on the arc-shaped outer wall of the limiting plate 30. The arrangement of the spring seat 301 facilitates the assembly of the limiting spring 31 and the limiting plate 30. The limiting spring 31 is compressed and causes the inner side wall of the limiting plate 30 to contact and press against the outer wall of the first stud 282.

[0026] like Figure 1 , Figure 2 As shown, the upper part of the monitoring body 4 has an alarm component, which includes an alarm 8 and an alarm light 9. Figure 6 As shown, the alarm 8 is used to issue a sound alarm prompt. The alarm 8 has a controller 20, and the controller 20 has a push switch 21 for controlling the working state of the alarm 8 and the alarm light 9, and the monitoring body 4 has a trigger component for triggering the push switch 21. The alarm light 9 and the alarm 8 are fixedly connected to form a whole, and a protective shell 7 is fixed to the bottom of the alarm 8, and the protective shell 7 is a hollow structure. The top of the protective shell 7 is fixedly connected to the bottom of the alarm 8, and the bottom of the protective shell 7 is fixedly connected to the monitoring box 1, so that the monitoring box 1 and the alarm 8 are relatively fixedly connected through the protective shell 7, and the internal structural components thereof are protected.

[0027] like Figure 5 , Figure 6 As shown, the trigger assembly includes a sliding block 16, a positioning rod 17, a shift block 19 and a driving mechanism. The positioning rod 17 is fixed in the lower part of the alarm 8, the sliding block 16 is slidably installed on the positioning rod 17, the shift block 19 is fixed on the sliding block 16, and the driving mechanism is used to drive the sliding block 16 to move along the positioning rod 17, and the shift block 19 triggers the push switch 21 after contacting the push switch 21.

[0028] The controller 20 is connected to the gas monitor 24, the trigger component and the opening and closing mechanism through the transmission line 32. When the gas monitor 24 detects abnormal gas, it sends abnormal data to the controller 20. At this time, the controller 20 sends a signal to the opening and closing mechanism, so that the opening and closing mechanism starts to close the transmission tube 27, and sends a signal to the trigger component at the same time, so that the trigger component starts the alarm 8 and the alarm light 9. The alarm 8 sends a sound alarm prompt, and the alarm light 9 sends a light alarm prompt.

[0029] To achieve the connection or disconnection between the fourth end of the transmission tube 27 and the other ends, as Figure 7 , Figure 8 As shown, the opening and closing mechanism includes a stepper motor 22, an output shaft 23 and a valve core 25. The stepper motor 22 is fixed in the bottom of the monitoring box 1. One end of the output shaft 23 is fixedly connected to the output end of the stepper motor 22, and the other end of the output shaft 23 is fixedly connected to the valve core 25. The valve core 25 is located at the intersection of the first end to the fourth end of the transmission tube 27. The valve core 25 is driven by the stepper motor 22 to rotate to realize the connection and disconnection between the first end and the fourth end of the transmission tube 27. This is widely used in ball valve switches. Figure 4 As shown, a sealing tube 26 is provided on the outer side of the output shaft 23 , and the sealing tube 26 is fixedly connected to the third end of the transmission tube 27 . The output shaft 23 is located on the inner side of the sealing tube 26 and is rotatably connected to the sealing tube 26 .

[0030] like Figure 6 As shown, the driving mechanism includes a hydraulic cylinder 5, a pressing rod 10, a baffle 12, a connecting seat 13 and a driving rod 15. The hydraulic cylinder 5 is fixed to the top of the monitoring body 4. The lower end of the pressing rod 10 is fixedly connected to the telescopic rod 6 of the hydraulic cylinder 5. The upper end of the pressing rod 10 is fixedly connected to the baffle 12. The connecting seat 13 is fixed on the baffle 12. Fig. 9 As shown, the lower end of the driving rod 15 is hinged to the ear plate 14 on the top of the connecting seat 13, and the upper end of the driving rod 15 is hinged to the sliding block 16; when the telescopic rod 6 of the hydraulic cylinder 5 moves up and down, the movement of the driving rod 15 is driven by the pressing rod 10 and the connecting seat 13, thereby driving the sliding block 16 to move along the positioning rod 17. A return spring 18 is sleeved on the positioning rod 17, one end of the return spring 18 is fixedly connected to the sliding block 16, and the other end of the return spring 18 is fixedly connected to the alarm 8. There are two sliding blocks 16, and the movement directions of the two sliding blocks 16 are always opposite. After the external force on the sliding block 16 is removed, the return spring 18 returns to its original state, and at this time pushes the sliding block 16 to move along the positioning rod 17. The baffle 12 is a circular structure, such as Figure 7As described, the baffle 12 is fixed on the top of the pressing rod 10, and a buffer spring 11 is arranged on the outside of the pressing rod 10, and the lower end of the buffer spring 11 is fixedly connected to the flange at the lower end of the pressing rod 10, and the flange is slidably arranged in the protective shell 7, and the upper end of the buffer spring 11 is fixedly connected to the protective shell 7. During the upward movement of the pressing rod 10, the buffer spring 11 is compressed, and a downward force is exerted on the pressing rod 10.

[0031] To achieve control, such as Figure 2 As shown, the stepper motor 22 is connected to the controller 20 via a transmission line 32. The hydraulic cylinder 5 is also connected to the controller 20 via a transmission line 32, and the controller 20 is used to control the working state of the hydraulic cylinder 5. The controller 20 is connected to the gas monitor 24 via the transmission line 32, and the gas monitor 24 uploads the detected data to the controller 20.

[0032] The working principle of the present invention is described below: (1) Install the bracket 2 next to the transformer and install the monitoring box 1 on the bracket 2; (2) Connect the fourth end of the transmission pipe 27 to the transformer oil tank and open the opening and closing mechanism; (3) When the gas monitor 24 detects abnormal gas, the gas monitor 24 sends the detected abnormal data to the controller 20. The controller 20 sends a signal to the opening and closing mechanism according to the abnormal situation, so that the opening and closing mechanism closes the connection between the first end and the fourth end of the transmission tube 27; (4) At the same time, the controller 20 sends a signal to the trigger assembly, causing the hydraulic cylinder 5 of the trigger assembly to move, ultimately driving the drive rod 15 to move, and then driving the sliding block 16 together with the shifting block 19 to move, until the shifting block 19 triggers the press switch 21; (5) After the push switch 21 is pressed, the alarm 8 and the alarm light 9 start to work. The alarm 8 gives an alarm by means of a sound reminder, and the alarm light 9 gives an alarm by means of a lighted visual reminder, thereby informing the maintenance personnel.

[0033] The present invention connects the transformer oil tank with the transmission pipe 27. When the oil and gas in the transformer oil tank are abnormal, the gas in the oil tank enters the transmission pipe 27 and can be detected by the gas monitor 24. At this time, the gas monitor 24 uploads the detection data to the controller 20, and the controller 20 sends an instruction to the opening and closing mechanism, so that the opening and closing mechanism disconnects the connection between the first end and the fourth end of the transmission pipe 27; at the same time, the controller 20 sends a signal to the trigger component, so that the hydraulic cylinder 5 of the trigger component is actuated, driving the pressing rod 10 and the connecting seat 13 to move upward, and then pushing the sliding block 16 to move along the positioning rod 17 through the driving rod 15. During the movement, the dial block 19 on the sliding block 16 touches the pressing switch 21 and triggers the pressing switch 21, so that the alarm 8 and the alarm light 9 are in working state, thereby playing a warning role for people.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings; It is only for the convenience of describing the present invention and simplifying the description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0037] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments; or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent monitor for abnormal oil and gas inside a transformer, comprising a monitoring box (1), characterized in that: The monitoring box (1) has a monitoring body (4) inside, and a transmission pipe (27) is provided at the bottom of the monitoring box (1). The transmission pipe (27) is a four-way structure, and a first end of the transmission pipe (27) is connected to the gas monitor (24). A sealing disk (28) is fixedly installed at the second end of the transmission pipe (27), and the sealing disk (28) is fixedly connected to the bottom of the monitoring body (4). The third end of the transmission pipe (27) has an opening and closing mechanism, and the opening and closing mechanism is used to achieve connection and disconnection between the fourth end of the transmission pipe (27) and the first end, and the fourth end of the transmission pipe (27) is used to be connected to the transformer oil tank; the upper part of the monitoring body (4) has an alarm component, and the alarm component includes an alarm (8) and an alarm light (9). The alarm (8) has a controller (20) therein, the controller (20) having a push switch (21) for controlling the working state of the alarm (8) and the alarm light (9), and the monitoring body (4) having a trigger component for triggering the push switch (21); the controller (20) is connected to the gas monitor (24), the trigger component and the opening and closing mechanism via a transmission line (32); when the gas monitor (24) detects abnormal gas, it sends abnormal data to the controller (20), and at this time the controller (20) sends a signal to the opening and closing mechanism, causing the opening and closing mechanism to start to close the transmission tube (27), and at the same time sends a signal to the trigger component, causing the trigger component to trigger the push switch (21) to start the alarm (8) and the alarm light (9).

2. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 1, characterized in that: The bottom of the sealing disk (28) has a first stud (282), and the first stud (282) extends into the second end of the transmission tube (27) and is threadedly connected thereto.

3. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 2, characterized in that: The top of the sealing disk (28) is snap-connected to a limiting disk (29), the top of the limiting disk (29) is provided with a second stud (291), and the second stud (291) is threadedly connected to the monitoring body (4).

4. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 3 is characterized in that: The sealing disk (28) has a circular mounting cavity (281) inside, and the inner wall of the mounting cavity (281) has a limiting assembly, the limiting assembly comprising a limiting plate (30) and a limiting spring (31), one end of the limiting spring (31) is fixedly connected to the inner wall of the mounting cavity (281), and the other end of the limiting spring (31) is fixedly connected to the limiting plate (30), the limiting plate (30) is an arc-shaped plate, and the limiting spring (31) is compressed so that the inner side wall of the limiting plate (30) contacts and presses against the outer wall of the first stud (282).

5. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 1, characterized in that: The opening and closing mechanism comprises a stepper motor (22), an output shaft (23) and a valve core (25); the stepper motor (22) is fixed in the bottom of the monitoring box (1); one end of the output shaft (23) is fixedly connected to the output end of the stepper motor (22); the other end of the output shaft (23) is fixedly connected to the valve core (25); the valve core (25) is located at the intersection of the first end to the fourth end of the transmission tube (27); the stepper motor (22) drives the valve core (25) to rotate to realize the connection and disconnection between the first end and the fourth end of the transmission tube (27).

6. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 5, characterized in that: The output shaft (23) has a sealing tube (26) on its outer side, the sealing tube (26) is fixedly connected to the third end of the transmission tube (27), and the output shaft (23) is rotatably connected to the sealing tube (26).

7. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 1, characterized in that: The trigger assembly comprises a sliding block (16), a positioning rod (17), a shifting block (19) and a driving mechanism, wherein the positioning rod (17) is fixed in the lower part of the alarm (8), the sliding block (16) is slidably mounted on the positioning rod (17), the shifting block (19) is fixed on the sliding block (16), and the driving mechanism is used to drive the sliding block (16) to move along the positioning rod (17), and the shifting block (19) triggers the push switch (21) after contacting with the push switch (21).

8. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 7, characterized in that: The driving mechanism comprises a hydraulic cylinder (5), a pressing rod (10), a baffle (12), a connecting seat (13) and a driving rod (15); the hydraulic cylinder (5) is fixed on the top of the monitoring body (4); the lower end of the pressing rod (10) is fixedly connected to the telescopic rod (6) of the hydraulic cylinder (5); the upper end of the pressing rod (10) is fixedly connected to the baffle (12); the connecting seat (13) is fixed on the baffle (12); the lower end of the driving rod (15) is hingedly connected to the connecting seat (13); and the upper end of the driving rod (15) is hingedly connected to the sliding block (16); when the telescopic rod (6) of the hydraulic cylinder (5) moves up and down, the driving rod (15) is driven to move through the pressing rod (10) and the connecting seat (13), thereby driving the sliding block (16) to move along the positioning rod (17).

9. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 8, characterized in that: A return spring (18) is sleeved on the positioning rod (17), one end of the return spring (18) is fixedly connected to the sliding block (16), and the other end of the return spring (18) is fixedly connected to the alarm (8).

10. The intelligent monitor for abnormal oil and gas inside a transformer according to claim 9, characterized in that: There are two sliding blocks (16), and the movement directions of the two sliding blocks (16) are always opposite.

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