A transformer gas relay sampling device

Abstract

The present invention relates to the technical field of power transformer relay protection, and discloses a transformer gas relay sampling device, including a base plate, a fixing seat, a clamping assembly and a collecting assembly, wherein the fixing seat and the base plate are fixed, the upper surface of the base plate is fixedly connected with a fixing rod, a position avoidance opening is provided in the fixing rod, a third air pipe is fixedly connected in the position avoidance opening, an outlet pipe is fixedly connected at one end of the third air pipe, a slip ring is movably connected to the circumferential outer wall of the outlet pipe, a sealing gasket is fixedly connected to one side of the slip ring, two connecting rods are fixedly connected to one side of the slip ring, one end of the connecting rod passes through the third air pipe and is fixedly connected to a sealing plate, and a first spring is movably connected to the circumferential outer wall of the outlet pipe. The present invention can not only prevent other gases from entering the collecting pipe when the collecting pipe is connected, thereby improving the detection effect of the device, but also facilitate the connection of the collecting pipe and the sampling device, thereby improving the convenience of using the sampling device.

Description

Technical Field

[0001] The invention relates to the technical field of power transformer relay protection, in particular to a transformer gas relay sampling device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil and the iron core. Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. With the development of science and technology, people need to collect and sample the gas from the transformer, so people pay more and more attention to the gas collection of the transformer.

[0003] When a large amount of low molecular gas gathers in the gas relay, it is necessary to extract these gases in time for analysis. The sampling device needs to be placed in the collection tube after sampling. The connection between the collection tube and the sampling device on the market is currently through a threaded connection. During the connection process, other gases are easily introduced into the collection tube, thereby affecting the analysis results. Therefore, it is very necessary to propose a transformer gas relay sampling device. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a transformer gas relay sampling device, which is mainly used to solve the problem that other gases enter the interior of the collecting tube when the collecting tube is connected to the sampler.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A transformer gas relay sampling device comprises a base plate, a fixing seat, a clamping assembly and a collecting assembly, wherein the fixing seat and the base plate are fixed to each other, a fixing rod is fixedly connected to the upper surface of the base plate, a avoidance opening is provided in the fixing rod, a third air pipe is fixedly connected to the avoidance opening, an outlet pipe is fixedly connected to one end of the third air pipe, a slip ring is movably connected to the circumferential outer wall of the outlet pipe, a sealing gasket is fixedly connected to one side of the slip ring, two connecting rods are fixedly connected to one side of the slip ring, one end of the connecting rod passes through the third air pipe and is fixedly connected to a sealing plate, a first spring is movably connected to the circumferential outer wall of the outlet pipe, and two ends of the first spring are respectively fixed to the slip ring and the third air pipe, a collecting pipe is provided on the upper surface of the fixing seat, and two ends of the collecting pipe are provided at one end. The cam is provided with a plurality of springs, each of which is connected to a plurality of springs, each of which is connected to a plurality of springs. The cam is provided with a plurality of springs, each of which is connected to a plurality of springs. The plurality of springs are connected to a plurality of springs, each of which is connected to a plurality of springs. The plurality of springs are connected to a plurality of springs, each of which is connected to a plurality of springs. The fixing plate is in contact with the block, one side of the fixing plate is fixedly connected with a guide rod, and the guide rod passes through the block and is fixed to one of the fixing seats, one side of one of the fixing seats is movably connected with a threaded rod, and the threaded rod passes through the block and is movably connected to the block, one end of the threaded rod passes through the fixing plate and is fixedly connected with a turning handle, one side of the fixing plate is fixedly connected with an electric telescopic rod, one end of the electric telescopic rod passes through the sampling tube and is fixedly connected with a first sliding column, and the first sliding column is movably connected to the sampling tube, the upper surface of the bottom plate is fixedly connected with a support seat, a connecting pipe is fixedly connected in the support seat, one end of the connecting pipe is fixedly connected with a first one-way valve, one end of the first one-way valve is fixedly connected with the sampling tube, and the outer side of the sampling tube is fixedly connected with a second air pipe, the bottom end of the second air pipe is fixedly connected with the second one-way valve, and the second one-way valve is fixed to the third air pipe, the upper surface of the support seat is fixedly connected with a miniature vacuum pump, one end of the miniature vacuum pump is fixedly connected with the first air pipe, one end of the first air pipe is fixedly connected with a control valve, one end of the control valve is fixedly connected with an exhaust pipe, and the exhaust pipe is fixed to the connecting pipe, the outer side of the control valve is movably connected with a control rod, one end of the control rod is fixedly connected with a handle through the support seat, the outer side of the connecting pipe is fixedly connected with a pressure gauge, and the pressure gauge passes through the support seat, one end of the connecting pipe is clamped with a clamp through the support seat, a avoidance hole is opened on one side of the fixed plate, and a plurality of ground feet are fixedly connected to the bottom of the base plate, and the ground feet are evenly distributed.

[0009] (III) Beneficial effects

[0010] Compared with the prior art, the present invention provides a transformer gas relay sampling device, which has the following beneficial effects:

[0011] The present invention directly connects the gas relay, the sampling tube and the collecting tube through a pipeline, and at the same time, under the action of the sealing member, the device is sealed to prevent other gases from entering the collecting tube during the gas collection process, thereby improving the accuracy of the detection of the gas finally collected and improving the convenience of gas collection in the gas relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the three-dimensional structure of a transformer gas relay sampling device proposed by the present invention;

[0013] Figure 2 A partial cross-sectional structural schematic diagram of a transformer gas relay sampling device proposed by the present invention;

[0014] Figure 3 A schematic diagram of a cross-sectional structure of a clamp tube of a transformer gas relay sampling device proposed by the present invention;

[0015] Figure 4 A schematic diagram of a cross-sectional structure of a third gas pipe of a transformer gas relay sampling device proposed by the present invention;

[0016] Figure 5 A schematic diagram of the internal structure of a sampling tube of a transformer gas relay sampling device proposed by the present invention;

[0017] Figure 6 This is a schematic diagram of the enlarged structure of part A of a transformer gas relay sampling device proposed by the present invention;

[0018] Figure 7 This is a partial enlarged structural schematic diagram of a transformer gas relay sampling device proposed by the present invention.

[0019] In the figure: 1, bottom plate; 2, fixing plate; 3, avoidance hole; 4, foot; 5, support seat; 6, pressure gauge; 7, micro vacuum pump; 8, electric telescopic rod; 9, sampling tube; 10, fixing rod; 11, fixing seat; 12, collecting tube; 13, connecting pipe; 14, first non-return valve; 15, clamp; 16, first air pipe; 17, control valve; 18, handle; 19, first slide column; 20, second air pipe; 21, second non-return valve; 22, third air pipe; 23, clamp pipe; 24, sealing gasket; 25, slip ring; 26, connecting rod; 27, sealing plate; 28, first spring; 29, slide plate; 30, sealing ring; 31, connecting column; 32, push handle; 33, sealing frame; 34, connecting frame; 35, slide groove; 36, second spring; 37, stopper; 38, threaded rod; 39, guide rod; 40, turning handle. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figure 1-Figure 7 A transformer gas relay sampling device comprises a base plate 1 and a connecting pipe 13 connected to the gas relay, a support seat 5 and a collecting assembly are fixedly arranged on the upper surface of the base plate 1, the connecting pipe 13 passes through the supporting seat 5, the supporting seat 5 supports the connecting pipe 13, and the collecting assembly comprises a sampling tube 9 and a collecting tube 12, wherein the sampling tube 9 extracts the gas in the gas relay, the collecting tube 12 is used to collect the gas in the sampling tube 9, the exhaust end of the connecting tube 13 is connected to the sampling tube 9, the connecting tube 13 transports the gas in the gas relay to the sampling tube 9, and the other end of the sampling tube 9 is penetrated by an electric telescopic rod 8 for extracting gas. When the equipment is in a vacuum state, the electric telescopic rod 8 can be moved outward to extract the gas under the action of atmospheric pressure. A second air pipe 20 is connected to the circumferential surface of the sampling tube 9, and a third air pipe 22 is connected to the other end of the second air pipe 20. The third air pipe 22 is connected to the air inlet end of the collecting tube 12 to transport gas to the collecting tube 12.

[0022] Specifically, a baffle is provided at the exhaust end of the third air pipe 22, and an air outlet pipe is connected to the outside of the baffle. The gas enters the collecting pipe 20 through the air outlet pipe. The outer circumferential surface of the air outlet pipe is sleeved in the first spring 28. A sealing plate 27 is provided on the inside of the baffle. The sealing plate 27 is used to block the entrance of the air outlet pipe. A slip ring 25 is provided on the outside of the baffle. A sealing gasket 24 is fixedly provided on the outside of the slip ring 25. The two ends of the first spring 28 are respectively fixedly connected to the baffles and the slip ring 25 on both sides. There are two connecting rods 26 connected horizontally, and the connecting rods 26 pass through the baffle and are slidably connected to the baffle. A sealing ring is provided on the circumferential surface of the connecting rod 26 to prevent gas from leaking from the gap between the baffle and the connecting rod 26. When the slip ring 25 is squeezed, it drives the connecting rod 26 to slide in the baffle, thereby pushing open the sealing plate 27 at the entrance of the air outlet pipe to allow the gas to pass through the air outlet pipe; when the slip ring 25 is not affected by external force, under the resetting action of the first spring 28, the sealing plate 27 blocks the entrance of the air outlet pipe.

[0023] Specifically, an air inlet is provided at one end of the collecting pipe 12, and a sealing frame 33 is provided inside the air inlet. The sealing frame 33 can seal the gas in the collecting pipe 12. A plurality of sliding grooves 35 are provided on the inner walls around the air inlet. A connecting frame 34 is slidably connected in the sliding groove 35. A limiting ring is provided on the inner side of the connecting frame 34, and a second spring 36 is connected between the limiting ring and the sliding groove 35. The connecting frame 34 is sleeved in the second spring 36, and the outer side of the connecting frame 34 is fixedly connected to the sealing frame 33. When the sealing frame 33 is squeezed by the gas in the third air pipe 22, the connecting frame 34 slides in the sliding groove 35 under the action of the limiting ring, and the second spring 36 is compressed, so that the gas enters the collecting pipe 12 from the third air pipe 22. When all the gas enters the collecting pipe 12, the sealing frame 22 will be reset by the force of the second spring 36, thereby blocking the air inlet of the collecting pipe 12 and sealing the gas.

[0024] In particular, the collection assembly of the present invention also includes a clamping tube 12, which is fixed at one end of the collection tube 12, and the clamping tube 23 is in contact with the sealing gasket 24. The circumferential outer wall of the slide plate 29 is bonded with a sealing ring 30, and the sealing ring 30 can seal the gap between the slide plate 29 and the collection tube 12, so that when the staff pushes the gas out of the collection tube 12, it can be better pushed out to avoid gas remaining in the collection tube 12. A connecting column 31 is welded on one side of the slide plate 29, and one end of the connecting column 31 passes through the collection tube 12 and is welded with a push handle 32.

[0025] Specifically, a fixing plate 2 and a plurality of fixing seats 11 for supporting the collecting pipe 12 are vertically fixed on the upper surface of the base plate 1, a stopper 37 is slidably connected to the upper surface of the base plate 1, and the collecting pipe 12 abuts against the stopper 37, a guide rod 39 is welded to one side of the fixing plate 2, and the guide rod 39 passes through the stopper 37 and is fixed to one of the fixing seats 11, one side of one of the fixing seats 11 is rotatably connected to a threaded rod 38, and the threaded rod 38 passes through the stopper 37 and is threadedly connected to the stopper 37, and one end of the threaded rod 38 passes through the fixing plate 2 and is fixed to a turning handle 40 by bolts.

[0026] Specifically, one side of the fixing plate 2 is fixedly connected to the electric telescopic rod 8 by bolts, one end of the electric telescopic rod 8 passes through the sampling tube 9 and is fixed with a first sliding column 19 by bolts, and the first sliding column 19 is slidably connected to the sampling tube 9.

[0027] Specifically, a first one-way valve 14 is provided between the connecting pipe 13 and the sampling pipe 9 to ensure that the gas does not enter the gas relay through the connecting pipe 13 , and a second one-way valve 21 is provided between the second gas pipe 20 and the third gas pipe 22 .

[0028] Specifically, a micro vacuum pump 7 is fixed to the upper surface of the support seat 5 by bolts, a first air pipe 16 is fixed to one end of the micro vacuum pump 7 by bolts, a control valve 17 is fixed to one end of the first air pipe 16 by bolts, an exhaust pipe is fixed to one end of the control valve 17 by bolts, and the exhaust pipe is fixed to the connecting pipe 13 by bolts. The micro vacuum pump 7 is started to evacuate the inside of the connecting pipe 13, and then the electric telescopic rod 8 is started to contract, and the electric telescopic rod 8 drives the first sliding column 19 to move. At this time, the gas will be extracted, and the worker does not need to manually extract the gas. The outer side of the control valve 17 is rotatably connected to a control rod, and one end of the control rod passes through the support seat 5 and is fixed with a handle 18 by bolts.

[0029] Specifically, a pressure gauge 6 is fixed to the outside of the connecting pipe 13 by bolts, and the pressure gauge 6 passes through the support seat 5. The pressure gauge 6 can display the gas pressure in the connecting pipe 13, so that the staff can observe the gas pressure conveniently and avoid explosion due to excessive gas pressure in the connecting pipe 13.

[0030] Specifically, one end of the connecting pipe 13 passes through the support seat 5 and is clamped with a clamp 15, and the air inlet end of the connecting pipe 13 is fixed to the air outlet of the gas relay by the clamp 15. A avoidance hole 3 is opened on one side of the fixed plate 2, and the collecting pipe 12 can pass through the avoidance hole 3 to prevent the collecting pipe 12 from colliding during movement. A plurality of ground feet 4 are fixed to the bottom of the base plate 1 by bolts, and the ground feet 4 are evenly distributed.

[0031] Specifically, a fixing rod 10 is vertically fixed on the bottom plate 1 , the other end of the fixing rod 10 is connected to the sampling tube 9 , the third air pipe 22 passes through the fixing rod 10 , and the fixing rod 10 fixes and supports the sampling tube 9 and the third air pipe 22 .

[0032] The working principle of this embodiment is as follows: when in use, open the vent plug of the gas relay, fix one end of the air inlet of the connecting pipe 13 to the air outlet of the gas relay through the clamp 15, then place the collecting pipe 12 on the fixing seat 11 and the block 37, rotate the threaded rod 38, the threaded rod 38 drives the block 37 to move, the block 37 pushes the collecting pipe 12 to move, the collecting pipe 12 drives the clamping pipe 23 to move, so that the clamping pipe 23 contacts the slip ring 25, and then continue to rotate the threaded rod 38, at this time the collecting pipe 12 will push the slip ring 25 to move through the clamping pipe 23 and squeeze the first spring 28, the slip ring 25 pushes the sealing plate 27 to move through the connecting rod 26, so that the sealing plate 27 no longer blocks the air outlet pipe, then open the control valve 17, start the micro vacuum pump 7, the micro vacuum pump 7 will evacuate the connecting pipe 13 to a vacuum state; when the connecting pipe 13 reaches a vacuum state, close the control valve 17 and the micro vacuum pump 7. , start the electric telescopic rod 8, the electric telescopic rod 8 contracts and drives the first slide column 19 to move, at this time the first slide column 19, the electric telescopic rod 8 and the sampling tube 9 will extract the gas in the gas relay by a needle-like method; when the extraction is completed, start the electric telescopic rod 8 to extend, at this time the first slide column 19 will squeeze the gas into the second air pipe 20, and then enter the third air pipe 22 from the second air pipe 20, and at the same time the gas will enter the outlet pipe, and then use the air pressure to push the sealing frame 33 to drive the connecting frame 34 to move and squeeze the second spring 36, so that the gas enters the collecting tube 12. At this time, since one end of the sampling tube 9 is the first one-way valve 14, the gas cannot go out from the first one-way valve 14. When all the gas enters the collecting tube 12, the sealing frame 33 will be reset by the force of the second spring 36, thereby blocking the air inlet of the collecting tube 12 and preventing the gas from going out.

[0033] The present invention directly connects the gas relay, the sampling tube and the collecting tube through a pipeline, and at the same time, under the action of the sealing member, the device is sealed to prevent other gases from entering the collecting tube during the gas collection process, thereby improving the accuracy of the detection of the gas finally collected.

[0034] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0035] In the description of this article, 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, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] 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 transformer gas relay sampling device, characterized in that: The invention comprises a base plate (1) and a connecting pipe (13) connected to a gas relay, a support seat (5) and a collecting assembly are fixedly arranged on the upper surface of the base plate (1), the connecting pipe (13) passes through the supporting seat (5), the collecting assembly comprises a sampling pipe (9) and a collecting pipe (12), the exhaust end of the connecting pipe (13) is connected to the sampling pipe (9), the other end of the sampling pipe (9) is penetrated by an electric telescopic rod (8) for extracting gas, the circumferential surface of the sampling pipe (9) is connected to a second air pipe (20), the other end of the second air pipe (20) is connected to a third air pipe (22), the third air pipe (22) is connected to the air inlet end of the collecting pipe (12), and the exhaust end of the third air pipe (22) is provided with a baffle. The baffle plate is connected to an air outlet pipe on the outside, and the outer circumferential surface of the air outlet pipe is sleeved in a first spring (28). A sealing plate (27) is arranged on the inside of the baffle plate. A slip ring (25) is arranged on the outside of the baffle plate. A sealing gasket (24) is fixedly arranged on the outside of the slip ring (25). The two ends of the first spring (28) are respectively fixedly connected to the baffle plates and the slip ring (25) on both sides. Two connecting rods (26) are horizontally connected between the sealing plate (27) and the slip ring (25), and the connecting rod (26) passes through the baffle plate and is slidably connected to the baffle plate. An air inlet is opened at one end of the collecting pipe (12). A sealing frame (33) is arranged on the inside of the air inlet. A plurality of sliding grooves (35) are opened on the inner wall around the air inlet. The slide groove (35) is slidably connected with a connecting frame (34), a limiting ring is arranged on the inner side of the connecting frame (34), a second spring (36) is connected between the limiting ring and the slide groove (35), the connecting frame (34) is sleeved in the second spring (36), the outer side of the connecting frame (34) is fixedly connected with the sealing frame (33), the collecting assembly further comprises a clamping tube (23) and a slide plate (29), the clamping tube (23) is fixed at one end of the collecting tube (12), and the clamping tube (23) is in contact with the sealing gasket (24), the collecting tube (12) is movably connected with a slide plate (29), the circumferential outer wall of the slide plate (29) is fixedly connected with the sealing ring (30), and one side of the slide plate (29) is fixedly connected with the sealing ring (30). A connecting column (31) is connected, one end of the connecting column (31) passes through the collecting tube (12) and is fixedly connected to a push handle (32); a fixing plate (2) and a plurality of fixing seats (11) for supporting the collecting tube (12) are vertically fixedly arranged on the upper surface of the bottom plate (1); a stopper (37) is movably connected to the upper surface of the bottom plate (1), and the collecting tube (12) abuts against the stopper (37); a guide rod (39) is fixedly connected to one side of the fixing plate (2), and the guide rod (39) passes through the stopper (37) and is fixed to one of the fixing seats (11); a threaded rod (38) is movably connected to one side of one of the fixing seats (11), and the threaded rod (38) passes through the stopper (37) and is movably connected to the stopper (37);One end of the threaded rod (38) passes through the fixed plate (2) and is fixedly connected to a turning handle (40); one side of the fixed plate (2) is fixedly connected to the electric telescopic rod (8); one end of the electric telescopic rod (8) passes through the sampling tube (9) and is fixedly connected to a first sliding column (19); and the first sliding column (19) is movably connected to the sampling tube (9); a first one-way valve (14) is provided between the connecting tube (13) and the sampling tube (9); a second one-way valve (21) is provided between the second air pipe (20) and the third air pipe (22); a micro vacuum pump (7) is fixedly connected to the upper surface of the support seat (5); one end of the micro vacuum pump (7) is fixedly connected to the first air pipe (16); one end of the first air pipe (16) is fixedly connected to a control valve (17); one end of the control valve (17) is fixedly connected to an exhaust pipe; and The exhaust pipe is fixed to the connecting pipe (13); a control rod is movably connected to the outside of the control valve (17); one end of the control rod passes through the support seat (5) and is fixedly connected to a handle (18); a pressure gauge (6) is fixedly connected to the outside of the connecting pipe (13); the pressure gauge (6) passes through the support seat (5); one end of the connecting pipe (13) passes through the support seat (5) and is clamped with a clamp (15); a avoidance hole (3) is opened on one side of the fixing plate (2); the collecting pipe (12) can pass through the avoidance hole (3); a plurality of footings (4) are fixedly connected to the bottom of the base plate (1), and the footings (4) are evenly distributed; a fixing rod (10) is vertically fixedly arranged on the base plate (1); the other end of the fixing rod (10) is connected to the sampling tube (9); the third air pipe (22) passes through the fixing rod (10).

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