Detection equipment for monitoring live-line state of transformer

Abstract

The utility model provides a detection device used for transformer live-line state monitoring, comprising an intelligent sensor and a fixed seat, the fixed seat is fixedly provided with a plugging structure used for connecting with the intelligent sensor, the intelligent sensor and the fixed seat are in plugging connection through the plugging structure, the fixed seat is internally provided with an oil duct structure, and the oil duct structure is connected with the intelligent sensor. The oil duct structure is filled with hydraulic oil, two piston structures and a pressure adjusting bolt for driving the piston structures to act are arranged on the fixing seat, the piston structures are slidably and elastically installed in the oil duct structure, and the pressure adjusting bolt is installed in the oil duct structure in a sealed and meshed mode through threads. According to the overall arrangement, when real-time live-line state monitoring needs to be carried out on the transformer, an operator can conveniently, rapidly and fixedly install the intelligent sensor at the connecting position of the upper oil tank and the lower oil tank of the transformer through the fixing base, the problem of tedious disassembly and assembly is avoided, and therefore the whole transformer is more convenient and flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to the electric power field, especially relates to a detection equipment for transformer live state monitoring. BACKGROUND

[0002] Transformer live state monitoring refers to real-time monitoring and diagnosis of the operation state of a transformer under no power-off condition by using various advanced detection technologies and equipment.

[0003] Partial discharge is a common phenomenon inside a transformer, which may be caused by equipment aging, insulation defects, etc. By using devices such as ultra-high frequency (UHF) sensors and ultrasonic sensors, the partial discharge activities inside the transformer can be monitored in real time, and positioning and quantitative analysis can be performed.

[0004] However, the existing ultra-high frequency sensor is inconvenient to fix on the upper and lower oil tanks of the transformer during use, and when the ultra-high frequency sensor malfunctions, it will cause too much trouble to disassemble and assemble.

[0005] Therefore, it is very necessary to invent a detection equipment for transformer live state monitoring. UTILITY MODEL CONTENTS

[0006] In order to solve the above technical problems, the utility model provides a kind of detection equipment for transformer live state monitoring, which adopts the technical scheme as follows: a kind of detection equipment for transformer live state monitoring, including intelligent sensor and fixed seat, wherein: the fixed seat is fixedly installed with the plug-in structure connected with intelligent sensor, the intelligent sensor is connected with fixed seat by plug-in structure plug-in, the fixed seat is internally provided with oil channel structure, and the oil channel structure is filled with hydraulic oil, the fixed seat is provided with two piston structures and one drive piston structure and is driven pressure regulating bolt, the piston structure is slidably and elastically installed in oil channel structure, and the pressure regulating bolt is installed in oil channel structure by thread sealing engagement;

[0007] Preferably, the oil channel structure includes an oil channel, a countersunk hole one, a countersunk hole two and an oil cavity, the oil channel is provided in the interior of the fixed seat, the countersunk hole one and the countersunk hole two are evenly provided on the two sides of the upper surface of the fixed seat, the large holes of the countersunk hole one and the countersunk hole two are communicated with the oil channel, the oil cavity is provided on the plug-in structure, the oil cavity is communicated with the oil channel, and the pressure regulating bolt is installed in the oil cavity by thread sealing engagement;

[0008] Preferably, the piston structure comprises a top column, a piston head and a compression spring, one end of the top column is coaxially fixedly installed with the piston head, the top column is coaxially sleeved with the compression spring, one end of the compression spring is fixedly connected with the piston head, the other end of the compression spring is fixedly connected with the fixed base, the compression spring is in the corresponding counterbore hole one and counterbore hole two, the top column and the piston head are slidably installed in the corresponding counterbore hole one and counterbore hole two, the end of the top column without the piston head extends out of the corresponding counterbore hole one and counterbore hole two, and the piston head is always above the large hole in the corresponding counterbore hole one and counterbore hole two under the action of the compression spring.

[0009] Preferably, U-shaped clamping grooves are formed in the two end faces of the intelligent sensor, and the intelligent sensor is connected with the plug-in structure through the U-shaped clamping grooves.

[0010] Preferably, the plug-in structure plug-in connection comprises support blocks one and two and limiting blocks, the support blocks one and two are fixedly installed on the both sides of the outer portion of the fixed base, the support blocks one and two are symmetrically arranged with the fixed base as the center, and the limiting blocks are fixedly installed on the opposite faces of the support blocks one and two.

[0011] Preferably, a concave cavity is formed in the upper surface of the fixed base, and the concave cavity can prevent the fixed base from causing shielding when the intelligent sensor detects the detection part of the transformer.

[0012] Preferably, the shape of the fixed base corresponds to the shape of the connection between the upper and lower oil tanks of the transformer.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The overall setting of the utility model can conveniently enable the operating personnel to quickly fix and install the intelligent sensor on the connection between the upper and lower oil tanks of the transformer through the fixed base when the real-time live state monitoring of the transformer is needed, avoids the problem of complicated disassembly and assembly, and makes the whole more convenient and flexible. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall front structure schematic diagram of the utility model.

[0016] Figure 2 It is the overall upper surface shape structure schematic diagram of the utility model.

[0017] Figure 3 It is the overall bottom structure schematic diagram of the utility model.

[0018] Figure 4 It is the explosion structure schematic diagram of the utility model.

[0019] Figure 5 It is the fixed seat partial section structure schematic diagram of the utility model.

[0020] Figure 6 It is the piston structure schematic diagram of the utility model.

[0021] In the drawing:

[0022] Intelligent sensor 1, U-shaped clamping groove 2, fixed seat 3, support block one 4, support block two 5, limit block 6, pressure regulating bolt 7, oil passage 8, countersunk hole one 9, countersunk hole two 10, oil cavity 11, jackscrew 12, piston head 13, compression spring 14, concave cavity 15. DETAILED DESCRIPTION

[0023] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor should belong to the protection scope of the utility model.

[0024] In the description of the embodiment, it should be explained that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawing, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] The utility model will be further described below in combination with the drawings:

[0026] EMBODIMENT

[0027] Refer to Figures 1-6The utility model provides a detection device for transformer live state monitoring, including intelligent sensor 1 and fixed seat 3, wherein: fixed seat 3 is fixedly installed with the plug -in structure that is connected with intelligent sensor 1, and intelligent sensor 1 is connected with fixed seat 3 through the plug -in structure, and the plug -in structure is set to when fixed seat 3 is installed at the upper and lower oil tank of transformer, the detachable intelligent sensor 1 can be individually disassembled without disassembling fixed seat 3, thereby improving the overall flexibility, and the oil channel structure is set in fixed seat 3 to store the required hydraulic oil in the oil channel structure, and the oil channel structure is filled with hydraulic oil to provide the required energy for the driving piston structure through the hydraulic oil, two piston structures and one pressure regulating bolt 7 for driving piston structure are arranged on fixed seat 3, the hydraulic oil in the oil channel structure can be pressed through pressure regulating bolt 7, and the piston structure is forced to rise through the hydraulic oil, so that the fixed seat 3 is installed at the upper and lower oil tank of transformer through the jacking force of piston structure, and the piston structure is slidably and elastically installed in the oil channel structure, and the pressure regulating bolt 7 is installed in the oil channel structure through thread sealing engagement;

[0028] In the embodiment, the oil channel structure includes an oil channel 8, a counterbore hole 1 9, a counterbore hole 2 10 and an oil cavity 1 1. The oil channel 8 is arranged in the interior of the fixed seat 3. The counterbore hole 1 9 and the counterbore hole 2 10 are arranged on both sides of the upper surface of the fixed seat 3. The large holes of the counterbore hole 1 9 and the counterbore hole 2 10 are communicated with the oil channel 8, so that the hydraulic oil in the oil channel 8 can flow into the counterbore hole 1 9 and the counterbore hole 2 10 to drive the piston structure in the counterbore hole 1 9 and the counterbore hole 2 10 to operate. The oil cavity 1 1 is arranged on the plug-in structure. The oil cavity 1 1 provides the required installation space for the pressure regulating bolt 7. The oil cavity 1 1 is communicated with the oil channel 8. The pressure regulating bolt 7 is installed in the oil cavity 1 1 through thread sealing engagement.

[0029] In this embodiment, the piston structure includes a top column 12, a piston head 13 and a compression spring 14, one end of the top column 12 is coaxially fixedly installed with the piston head 13, through the setting of the piston head 13, the sealing between the top column 12 and the corresponding counterbore hole one 9 and counterbore hole two 10 can be ensured, and the smoothness of the top column 12 running in the corresponding counterbore hole one 9 and counterbore hole two 10 can be ensured, the compression spring 14 is coaxially sleeved on the top column 12, one end of the compression spring 14 is fixedly connected with the piston head 13, the other end of the compression spring 14 is fixedly connected with the fixed seat 3, the compression spring 14 is in the corresponding counterbore hole one 9 and counterbore hole two 10, through the setting of the compression spring 14, after the hydraulic oil in the oil way structure loses pressure, the top column 12 can be automatically reset under the action of the compression spring 14, and the top column 12 is prevented from moving into the oil way 8, the top column 12 and the piston head 13 are slidingly installed in the corresponding counterbore hole one 9 and counterbore hole two 10, one end of the top column 12 without the piston head 13 extends out of the corresponding counterbore hole one 9 and counterbore hole two 10, the piston head 13 is always above the large hole in the corresponding counterbore hole one 9 and counterbore hole two 10 under the action of the compression spring 14, the piston head 13 is prevented from blocking the corresponding counterbore hole one 9 and counterbore hole two 10, so that the hydraulic oil can enter the inside of the corresponding counterbore hole one 9 and counterbore hole two 10.

[0030] In this embodiment, U-shaped clamping grooves 2 are formed in the two end faces of the intelligent sensor 1, the intelligent sensor 1 is connected to the plug-in structure through the U-shaped clamping grooves 2, and the U-shaped clamping grooves 2 are provided to facilitate the quick plug-in of the intelligent sensor 1 and the plug-in structure.

[0031] In this embodiment, the plug-in structure plug-in connection includes support blocks one 4, support blocks two 5 and limiting blocks 6, the support blocks one 4 and the support blocks two 5 are fixedly installed on the two sides of the outside of the fixed seat 3, the support blocks one 4 and the support blocks two 5 are provided to support the intelligent sensor 1, the support blocks one 4 and the support blocks two 5 are symmetrically arranged with the fixed seat 3 as the center, the limiting blocks 6 are fixedly installed on the opposite faces of the support blocks one 4 and the support blocks two 5, and the U-shaped clamping grooves 2 are plug-in connected with the corresponding limiting blocks 6 to facilitate the positioning connection between the limiting blocks 6 and the U-shaped clamping grooves 2.

[0032] In this embodiment, a concave cavity 15 is formed in the upper surface of the fixed seat 3, and the concave cavity 15 is provided to prevent the fixed seat 3 from causing obstruction when the intelligent sensor 1 detects the detection part of the transformer.

[0033] In this embodiment, the shape of the fixed seat 3 corresponds to the shape of the connection between the upper and lower oil tanks of the transformer, so that the fixed seat 3 is more closely installed at the connection between the upper and lower oil tanks of the transformer.

[0034] The utility model discloses, specific use time is under the retraction state of the jackscrew 12, places the fixed base 3 inside transformer upper and lower section oil tank connecting place, then rotates the pressure regulating bolt 7 clockwise, and the hydraulic oil in oil way structure is pressed through pressure regulating bolt 7, and the jackscrew 12 in corresponding counter sink hole one 9 and counter sink hole two 10 is forced to rise through the hydraulic oil, until the top end of jackscrew 12 and transformer upper and lower section oil tank connecting place contact, so can install the fixed base 3 at transformer upper and lower section oil tank through the jacking force of jackscrew 12;

[0035] Then let the U-shaped clamping groove 2 on the intelligent sensor 1 and the limiting block 6 be inserted in one piece, and the like can be achieved.

[0036] When the intelligent sensor 1 fails in the later period, the intelligent sensor 1 can be replaced without disassembling the fixed base 3, so that the whole is more convenient and flexible.

[0037] The technical scheme of the utility model, or the technical personnel in the utility model technical scheme inspired by, design similar technical scheme, and reach the above technical effect, all are fall into the protection scope of the utility model.

Claims

1. A detection device for on-load condition monitoring of a transformer, characterized in that: Intelligent sensor (1) and fixed seat (3) are included, wherein: the fixed seat (3) is fixedly installed with plug-in structure connected with the intelligent sensor (1), the intelligent sensor (1) is connected with the fixed seat (3) through the plug-in structure, the fixed seat (3) is internally provided with oil channel structure, the oil channel structure is filled with hydraulic oil, the fixed seat (3) is provided with two piston structures and a pressure regulating bolt (7) for driving the piston structure, the piston structure is slidably and elastically installed in the oil channel structure, and the pressure regulating bolt (7) is threadedly and sealingly engaged in the oil channel structure. The oil channel structure includes an oil channel (8), a countersunk hole one (9), a countersunk hole two (10) and an oil cavity (11), the oil channel (8) is internally provided in the fixed seat (3), the countersunk hole one (9) and the countersunk hole two (10) are uniformly provided on the two sides of the upper surface of the fixed seat (3), the large holes of the countersunk hole one (9) and the countersunk hole two (10) are communicated with the oil channel (8), the oil cavity (11) is provided in the plug-in structure, the oil cavity (11) is communicated with the oil channel (8), and the pressure regulating bolt (7) is threadedly and sealingly engaged in the oil cavity (11). The piston structure includes a top column (12), a piston head (13) and a compression spring (14), one end of the top column (12) is coaxially and fixedly provided with the piston head (13), the top column (12) is coaxially sleeved with the compression spring (14), one end of the compression spring (14) is fixedly connected with the piston head (13), the other end of the compression spring (14) is fixedly connected with the fixed seat (3), the compression spring (14) is in the corresponding countersunk hole one (9) and the corresponding countersunk hole two (10), the top column (12) and the piston head (13) are slidably installed in the corresponding countersunk hole one (9) and the corresponding countersunk hole two (10), one end of the top column (12) without the piston head (13) extends out of the corresponding countersunk hole one (9) and the corresponding countersunk hole two (10), and the piston head (13) is always above the large hole in the corresponding countersunk hole one (9) and the corresponding countersunk hole two (10) under the action of the compression spring (14).

2. A detection device for on-load condition monitoring of a transformer according to claim 1, characterized in that: U-shaped clamping grooves (2) are formed in the two end faces of the intelligent sensor (1), and the intelligent sensor (1) is connected with the plug-in structure through the U-shaped clamping grooves (2).

3. A detection device for on-load condition monitoring of a transformer according to claim 2, characterized in that: The plug-in structure includes support blocks one (4) and two (5) and limit blocks (6), the support blocks one (4) and two (5) are fixedly installed on the two sides of the outer portion of the fixed seat (3), the support blocks one (4) and two (5) are symmetrically arranged with the fixed seat (3) as the center, the limit blocks (6) are fixedly installed on the opposite faces of the support blocks one (4) and two (5), and the U-shaped clamping grooves (2) are connected with the corresponding limit blocks (6).

4. A detection device for on-load condition monitoring of a transformer as claimed in claim 1, wherein: A concave cavity (15) is formed in the upper surface of the fixed seat (3), and the concave cavity (15) can prevent the fixed seat (3) from blocking the detection position of the transformer during detection of the intelligent sensor (1).

5. A detection device for monitoring the live condition of a transformer as claimed in claim 1 or 4, characterized in that: The shape of the fixing seat (3) corresponds to the shape of the connection between the upper and lower oil tanks of the transformer.

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