Integrated temperature and pressure measuring device of oil-immersed transformer

Abstract

The integrated temperature and pressure measuring device comprises an oil-immersed transformer body, a lifting device, a temperature sensor and a pressure sensor, a first storage groove is formed in the middle of the upper end of the oil-immersed transformer body, and a through hole is formed in the middle of the bottom end of the oil-immersed transformer body; a mounting plate is fixedly connected to the upper end of the interior of the first storage groove through bolts, a sealing ring is fixedly connected to the outer end of the lower surface of the mounting plate, a mounting frame is fixedly connected to the right end of the upper surface of the mounting plate through bolts, a lifting device is connected to the mounting frame, and a lifting rod is in threaded connection with the interior of the lifting device; and a second storage groove is formed in the bottom end of the lifting rod, and a temperature sensor is fixedly connected to the left end of the interior of the second storage groove. The integrated temperature and pressure measuring device of the oil-immersed transformer is convenient to disassemble and assemble, the measuring depth can be adjusted, different positions can be measured, and the integrated temperature and pressure measuring device is provided with a cleaning structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer monitoring technical field, concretely is a kind of integrated temperature measurement pressure measuring device of oil-immersed transformer. BACKGROUND

[0002] Oil-immersed transformer refers to the transformer filled with transformer oil in the transformer box, the temperature of the transformer oil in the oil-immersed transformer needs to be monitored during the working process, and then the safety and stability of the operation state of the oil-immersed transformer is judged by the monitored temperature.

[0003] The utility model discloses an integrated temperature measurement pressure measuring device of oil-immersed transformer related to transformer monitoring technical field, including transformer box, the top of transformer box is inserted with outer sleeve tube, the inside coaxial sliding of outer sleeve tube is provided with inner measuring pipe, the top outside of inner measuring pipe is provided with outer thread;The top coaxial rotation of outer sleeve tube is provided with adjusting sleeve, adjusting sleeve and outer thread correspond thread cooperation connection;The inside of inner measuring pipe is divided into first cavity and second cavity by axial partition, and the inside of first cavity and second cavity is provided with temperature sensor and pressure sensor respectively, and the bottom of first cavity and second cavity is communicated with the inside environment of transformer box;The utility model can adjust the depth position of measurement structure extended to the inside of transformer box, and then the pressure and temperature of different depth positions in the inside of transformer box are detected, and the temperature distribution in the inside of transformer box can be more comprehensive and accurate.

[0004] Due to the combination of existing scheme and actual production and processing, the integrated temperature measurement pressure measuring device of the oil-immersed transformer still has some problems, such as: the integrated temperature measurement pressure measuring device needs to be installed on the oil-immersed transformer, which is not easy to disassemble, and the measurement depth is not convenient to adjust because there is a certain amount of transformer oil in the oil-immersed transformer, and the transformer oil adheres to the integrated temperature measurement pressure measuring device, which is not convenient to clean, therefore, we propose an integrated temperature measurement pressure measuring device of oil-immersed transformer to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an integrated temperature measurement pressure measuring device of oil-immersed transformer to solve the problem that the integrated temperature measurement pressure measuring device needs to be installed on the oil-immersed transformer, which is not easy to disassemble, and the measurement depth is not convenient to adjust because there is a certain amount of transformer oil in the oil-immersed transformer, and the transformer oil adheres to the integrated temperature measurement pressure measuring device, which is not convenient to clean.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: an integrated temperature and pressure measuring device of oil immersed transformer, including oil immersed transformer body, elevating gear, temperature sensor and pressure sensor, the first article groove is had in the upper end middle part of oil immersed transformer body, and the bottom end middle part of oil immersed transformer body is provided with through -hole, the inside upper end of first article groove is fixedly connected with mounting plate by bolt, and the lower surface outer end of mounting plate is fixedly connected with sealing ring, and the upper surface right -hand member of mounting plate is fixedly connected with mounting bracket by bolt, the mounting bracket is connected with elevating gear, and the inside screw thread connection of elevating gear has lifting rod, and the bottom end of lifting rod is provided with second article groove;

[0007] The inside left end of second article groove is fixedly connected with temperature sensor, and the inside right end of second article groove is fixedly connected with pressure sensor, the bottom end outside of lifting rod is fixedly connected with ring plate, and the lower surface left end middle part of mounting plate is fixedly connected with a group of telescopic rods, and the output of telescopic rod is fixedly connected with connecting plate, the upper end lower surface inner end of telescopic rod is fixedly connected with scraper.

[0008] Preferably, the outer side of the sealing ring is in close contact with the inner side of the through hole.

[0009] Preferably, the elevating gear is combined by motor, first gear, second gear, connecting shaft and rotating rod, the output of motor is fixedly connected with first gear, the left side of first gear is engagedly connected with second gear, and the lower surface middle part of second gear is fixedly connected with connecting shaft, and the lower surface of connecting shaft is fixedly connected with rotating rod.

[0010] Preferably, the motor is fixedly connected to the upper surface right end of the mounting bracket by bolts.

[0011] Preferably, the upper surface middle part of the second gear is rotatably connected to the lower surface left end of the mounting bracket by a rod.

[0012] Preferably, the lower surface of the rotating rod is provided with a threaded groove, and the threaded groove in the rotating rod is threadedly connected with the lifting rod.

[0013] Preferably, the rotating rod is provided with telescopic rods on the left and right sides.

[0014] Preferably, the outer end of the connecting plate is equiangularly penetrated by a plurality of bolts, and the connecting plate is fixedly connected to the ring plate by the bolts.

[0015] Compared with the prior art, the utility model has the advantages that the integrated temperature and pressure measuring device of oil immersed transformer is convenient to disassemble and assemble, can adjust the measuring depth, measures different positions, and has a cleaning structure.

[0016] 1.The upper surface of the oil-immersed transformer body is provided with a first storage groove, a through hole is formed in the middle bottom of the first storage groove, the upper surface of the oil-immersed transformer body is fixedly connected with a mounting frame by bolts, the upper surface of the right end of the mounting frame is fixedly connected with a motor by bolts, and a plurality of bolts are connected to the outer end of the connecting plate at the bottom of the telescopic rod at equal angles, which facilitates disassembly and assembly;

[0017] 2.The middle part of the mounting plate is connected with a lifting device, the motor is fixedly connected to the upper surface right end of the mounting plate by bolts, the output shaft of the motor is fixedly connected with a first gear, the left side of the first gear is meshingly connected with a second gear, the lower surface of the second gear is fixedly connected with a connecting shaft, the lower surface of the connecting shaft is fixedly connected with a rotating rod, a threaded groove is formed in the middle of the lower surface of the rotating rod, and a lifting rod is threadedly connected in the threaded groove, so that the measurement depth can be adjusted, and different positions can be measured;

[0018] 3.The lower surface of the upper end of the telescopic rod is fixedly connected with a scraper, the cross section of the scraper is triangular, the inner side of the scraper is fitted with the outer side of the bottom of the telescopic rod, and the upper surface of the ring plate is inclined downward, which has a cleaning structure. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front perspective structure schematic diagram of the utility model;

[0020] Figure 2 It is a back perspective structure schematic diagram of the utility model;

[0021] Figure 3 It is a bottom perspective structure schematic diagram of the utility model;

[0022] Figure 4 It is an oil-immersed transformer body top perspective structure schematic diagram of the utility model;

[0023] Figure 5 It is a front perspective cutting structure schematic diagram of the utility model;

[0024] Figure 6 It is a front rotating rod bottom perspective structure schematic diagram of the utility model.

[0025] In the drawing: 1, oil-immersed transformer body; 2, first storage groove; 3, through hole; 4, mounting plate; 5, sealing ring; 6, mounting frame; 7, lifting device; 701, motor; 702, first gear; 703, second gear; 704, connecting shaft; 705, rotating rod; 8, lifting rod; 9, second storage groove; 10, temperature sensor; 11, pressure sensor; 12, ring plate; 13, telescopic rod; 14, connecting plate; 15, scraper. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0027] Embodiment one: please refer to Figure 1 , Figure 2 , Figures 4-6 The existing integrated temperature and pressure measuring device of the oil-immersed transformer needs to be installed on the oil-immersed transformer and is not easy to disassemble and assemble. In order to solve this technical problem, the embodiment discloses the following technical content.

[0028] The first storage groove 2 is arranged at the upper middle part of the oil-immersed transformer body 1, and a through hole 3 is arranged at the bottom middle part of the oil-immersed transformer body 1. The inner upper end of the first storage groove 2 is fixedly connected with a mounting plate 4 by bolts, the lower surface of the mounting plate 4 is fixedly connected with a sealing ring 5 at the outer end, the outer side surface of the sealing ring 5 is in close contact with the inner side surface of the through hole 3, and the upper surface of the mounting plate 4 is fixedly connected with a mounting frame 6 at the right end by bolts.

[0029] When disassembling and assembling the integrated temperature and pressure measuring device, the bolts fixedly connecting the four corners of the mounting plate 4 are disassembled, the integrated temperature and pressure measuring device can be disassembled from the oil-immersed transformer body 1 as a whole, the bolts fixedly connecting the motor 701 are disassembled, the motor 701 can be disassembled from the mounting frame 6, the connecting plate 14 at the bottom of the telescopic rod 13 can be disassembled from the ring plate 12, the connection between the integrated temperature and pressure measuring device and the oil-immersed transformer body 1 is sealed by the sealing ring 5 to prevent leakage, and the above can disassemble and assemble the integrated temperature and pressure measuring device.

[0030] Embodiment two: the existing integrated temperature and pressure measuring device of the oil-immersed transformer has a certain amount of transformer oil inside, and it is inconvenient to adjust the measurement depth. Therefore, the embodiment is shown in the following technical solutions, Figures 1-3 , Figure 5 and Figure 6 .

[0031] The lifting device 7 is connected to the mounting frame 6 and is composed of a motor 701, a first gear 702, a second gear 703, a connecting shaft 704 and a rotating rod 705, the motor 701 is fixedly connected to the upper surface right end of the mounting frame 6, the output end of the motor 701 is fixedly connected with the first gear 702, the left side of the first gear 702 is meshedly connected with the second gear 703, the upper surface middle part of the second gear 703 is rotatably connected to the lower surface left end of the mounting frame 6, the lower surface middle part of the second gear 703 is fixedly connected with the connecting shaft 704, and the lower surface of the connecting shaft 704 is fixedly connected with the rotating rod 705, the lower surface inside of the rotating rod 705 is provided with a threaded groove, the threaded groove inside the rotating rod 705 is threadedly connected with the lifting rod 8, the inside of the rotating rod 705 is threadedly connected with the lifting rod 8, the bottom end of the lifting rod 8 is provided with a second storage groove 9, the inside left end of the second storage groove 9 is fixedly connected with a temperature sensor 10, and the inside right end of the second storage groove 9 is fixedly connected with a pressure sensor 11, the bottom end outside of the lifting rod 8 is fixedly connected with a ring plate 12, the lower surface left end middle part of the mounting plate 4 is fixedly connected with a group of telescopic rods 13, the left and right sides of the rotating rod 705 are both provided with the telescopic rod 13, the output end of the telescopic rod 13 is fixedly connected with a connecting plate 14, and the outer end of the connecting plate 14 is equiangularly penetrated through a plurality of bolts, and the connecting plate 14 is fixedly connected to the ring plate 12 by the bolts;

[0032] When measuring temperature and pressure, the temperature sensor 10 and the pressure sensor 11 are started to measure, because the transformer oil in the oil-immersed transformer has a certain depth, it is necessary to measure the transformer oil at different depths, at this time, the motor 701 needs to be started, the output shaft of the motor 701 rotates with the first gear 702, the first gear 702 rotates with the second gear 703, and the second gear 703 rotates with the rotating rod 705, because the left and right sides of the bottom end of the lifting rod 8 are limited by the telescopic rod 13, when the rotating rod 705 rotates, the lifting rod 8 will be moved up and down inside the rotating rod 705, so that the lifting rod 8 adjusts the height with the temperature sensor 10 and the pressure sensor 11, and measures the transformer oil at different depths;

[0033] In the existing oil-immersed transformer integrated temperature and pressure measuring device, the transformer oil adheres to the integrated temperature and pressure measuring device, which is not convenient to clean, therefore, in this embodiment, the following technical scheme is adopted, as shown in Figure 6 ;

[0034] The upper end lower surface inner end of the telescopic rod 13 is fixedly connected with a scraper 15;

[0035] When the telescopic rod 13 is telescoped, transformer oil will adhere to the bottom end of the telescopic rod 13, and when the bottom end of the telescopic rod 13 moves upward, the scraper 15 scrapes off the transformer oil adhered to the bottom end of the telescopic rod 13, and since the upper surface of the ring plate 12 is inclined downward from the outer end, the transformer oil will slide along the ring plate 12 and the transformer oil adhered to the bottom end of the telescopic rod 13 can be cleaned.

[0036] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail herein.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or replace part of the technical features equivalently, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An integrated temperature and pressure measuring device for an oil-immersed transformer, comprising an oil-immersed transformer body (1), a lifting device (7), a temperature sensor (10), and a pressure sensor (11), characterized in that: The upper middle part of the oil-immersed transformer body (1) has a first storage groove (2), and the lower middle part of the oil-immersed transformer body (1) has a through hole (3). The upper part of the first storage groove (2) is fixedly connected to a mounting plate (4) by bolts, and the lower outer end of the mounting plate (4) is fixedly connected to a sealing ring (5). The right end of the upper surface of the mounting plate (4) is fixedly connected to a mounting bracket (6) by bolts. The mounting bracket (6) is connected to a lifting device (7), and the lifting device (7) is internally threaded with a lifting rod (8). The bottom end of the lifting rod (8) has a second storage groove (9). A temperature sensor (10) is fixedly connected to the left end of the second storage slot (9), and a pressure sensor (11) is fixedly connected to the right end of the second storage slot (9). A ring plate (12) is fixedly connected to the outer side of the bottom end of the lifting rod (8), and a set of telescopic rods (13) is fixedly connected to the middle of the left end of the lower surface of the mounting plate (4). A connecting plate (14) is fixedly connected to the output end of the telescopic rod (13), and a scraper (15) is fixedly connected to the inner end of the lower surface of the upper end of the telescopic rod (13).

2. The integrated temperature and pressure measuring device for an oil-immersed transformer according to claim 1, characterized in that: The outer side of the sealing ring (5) is in contact with the inner side of the through hole (3).

3. The integrated temperature and pressure measuring device for an oil-immersed transformer according to claim 1, characterized in that: The lifting device (7) is composed of a motor (701), a first gear (702), a second gear (703), a connecting shaft (704), and a rotating rod (705). The output end of the motor (701) is fixedly connected to the first gear (702), and the left side of the first gear (702) is meshed with the second gear (703). The middle part of the lower surface of the second gear (703) is fixedly connected to the connecting shaft (704), and the lower surface of the connecting shaft (704) is fixedly connected to the rotating rod (705).

4. The integrated temperature and pressure measuring device for an oil-immersed transformer according to claim 3, characterized in that: The motor (701) is bolted to the right end of the upper surface of the mounting bracket (6).

5. The integrated temperature and pressure measuring device for an oil-immersed transformer according to claim 3, characterized in that: The upper surface of the second gear (703) is rotatably connected to the left end of the lower surface of the mounting bracket (6) by a rod.

6. The integrated temperature and pressure measuring device for an oil-immersed transformer according to claim 3, characterized in that: The lower surface of the rotating rod (705) is provided with a threaded groove, and the threaded groove inside the rotating rod (705) is threadedly connected to the lifting rod (8).

7. The integrated temperature and pressure measuring device for an oil-immersed transformer according to claim 3, characterized in that: Telescopic rods (13) are installed on both the left and right sides of the rotating rod (705).

8. The integrated temperature and pressure measuring device for an oil-immersed transformer according to claim 1, characterized in that: The outer end of the connecting plate (14) is connected by several bolts at equal angles, and the connecting plate (14) is fixedly connected to the ring plate (12) by the bolts.

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