Rapid detection and verification device for oil level of oil conservator of main transformer

Abstract

The utility model belongs to the field of power transformers, and particularly relates to a main transformer oil conservator oil level rapid detection and verification device which comprises an oil outlet pipe ball valve, the bottom of the oil outlet pipe ball valve is fixedly connected with an installation disc, and the bottom face of the installation disc is fixedly connected with a test pipeline. The side surface of the test pipeline is fixedly connected with a pressure sensor I and a pressure sensor II; a special exhaust pipeline is additionally arranged in a test pipeline and can freely move up and down, after a dual-pressure liquid level meter is installed, the exhaust pipeline is moved upwards until the upper edge of the exhaust pipeline abuts against the lower edge of the inner spherical surface of an oil outlet pipe ball valve, air remaining in the pipeline due to installation of the dual-pressure liquid level meter is reduced, and the accuracy of the device is improved; and secondly, an oil conservator oil outlet pipe ball valve 1 flange and a dual-pressure liquid level meter flange which need to be fixed through four screws originally are redesigned into quick connectors capable of being quickly mounted, the effects of being quick to mount and convenient to dismount are achieved, and the working efficiency of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power transformer, concretely is main transformer oil pillow oil level quick detection calibration device. BACKGROUND

[0002] Oil pillow is an important oil storage device widely used in power transformer. Oil pillow can isolate direct contact of insulating oil and air, prevent insulating oil from being damp, and slow down the deterioration speed of insulating oil. Therefore, good running state of oil pillow is very important for safe and stable operation of transformer. According to operation experience, false oil level and other problems caused by oil level meter failure bring uncertain factors to safe operation of transformer.

[0003] At present, a double-pressure electronic liquid level meter on the market comprises a test pipeline and two pressure transmitters. The pressure sensors are arranged in an upper and lower interval. The oil level height is calculated by using the liquid pressure formula. The technical scheme can be directly used for measuring the height of the oil level, and can also be used for verifying whether the oil level meter is damaged.

[0004] At present, the exhaust mechanism used by the double-pressure liquid level meter on the market is provided with an exhaust hole in the sidewall of the upper flange. This design can exhaust most of the air in the test pipeline, but when the transformer oil flows out of the exhaust hole, a part of the air between the oil surface and the ball valve is not exhausted. This part of air may enter the oil pillow, and when a large amount of air accumulates, it may cause false oil level.

[0005] And the double-pressure liquid level meter on the market is generally fixed by using screws when combined with the oil pillow oil outlet pipe. However, it cannot meet the needs of rapid measurement.

[0006] Therefore, the main transformer oil pillow oil level quick detection calibration device is proposed for the above problems. INVENTION CONTENTS

[0007] In order to make up for the problems in the prior art, the utility model provides a main transformer oil pillow oil level quick detection calibration device.

[0008] The utility model discloses a main transformer oil pillow oil level quick detection calibration device, including the oil outlet pipe ball valve, the bottom fixed connection of oil outlet pipe ball valve has the installation disc, the bottom surface fixed connection of installation disc has the test pipeline, the side fixed connection of test pipeline has pressure sensor no. 1 and pressure sensor no. 2, the bottom screw cooperation of test pipeline has the test pipe fixed nut, the bottom screw cooperation of test pipe fixed nut has the exhaust pipe fixed nut, the inside of installation disc is provided with the exhaust pipeline, the top fixed connection of installation disc has the base, the inside rotation of base is connected with the pivot, the surface rotation of pivot is connected with the quick connector force arm.

[0009] Preferably, the top of the exhaust pipe is fixedly connected with an exhaust pipe oil-proof cap, and the side of the exhaust pipe is provided with an exhaust hole.

[0010] Preferably, the two ends of the force arm of the quick connector are respectively provided with a quick connector fixing hole and a quick connector mounting hole.

[0011] Preferably, the side of the force arm of the quick connector close to the bottom is fixedly connected with a protrusion, and the protrusion is in an oval shape.

[0012] Preferably, the size of the oil outlet pipe ball valve is consistent with the size of the mounting disc.

[0013] Preferably, the number of the force arms of the quick connector is two, and the force arms are symmetrically distributed on the two sides of the mounting disc.

[0014] The utility model discloses the beneficial effect lies in:

[0015] 1. The utility model discloses a special exhaust pipe is added in the inside of test pipe, and the exhaust pipe can move freely up and down, and after installing double -pressure liquid level meter, the exhaust pipe is moved upwards, and the upper edge of exhaust pipe is pressed to the lower edge of the inner spherical surface of oil outlet pipe ball valve, so that the air remaining in the pipe due to the installation of double -pressure liquid level meter is reduced, and the accuracy of the device is improved.

[0016] 2. The utility model discloses that the oil pillow oil outlet pipe ball valve 1 flange and double -pressure liquid level meter flange originally needing to use four screws are redesigned as the quick connector of quick installation, have the effect that installation is quick, and dismounting is convenient, improve the working efficiency of user. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description's drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the front view structure schematic diagram of the utility model;

[0019] Figure 2 It is the exhaust pipe structure schematic diagram of the utility model;

[0020] Figure 3 It is the sectional view structure schematic diagram of the utility model;

[0021] Figure 4 It is the test pipe structure schematic diagram of the utility model;

[0022] Figure 5 It is the installation disc structure schematic view of the utility model.

[0023] In the drawing: 1, oil outlet pipe ball valve; 2, installation disc; 3, test pipe; 4, pressure sensor one; 5, pressure sensor two; 6, test pipe fixing nut; 7, exhaust pipe fixing nut; 8, exhaust pipe; 9, exhaust pipe oil cap; 10, exhaust hole; 11, base; 12, rotating shaft; 13, quick connector force arm; 14, protruding block; 15, quick connector fixing hole; 16, quick connector mounting hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 As shown in the drawing, the main transformer oil pillow oil level rapid detection calibration device, including oil outlet pipe ball valve 1, the bottom of oil outlet pipe ball valve 1 is fixedly connected with installation disc 2, installation disc 2 bottom surface is fixedly connected with test pipe 3, the side of test pipe 3 is fixedly connected with pressure sensor one 4 and pressure sensor two 5, the bottom of test pipe 3 is screw threadedly matched with test pipe fixing nut 6, the bottom of test pipe fixing nut 6 is screw threadedly matched with exhaust pipe fixing nut 7, the inside of installation disc 2 is provided with exhaust pipe 8, the top of installation disc 2 is fixedly connected with base 11, the inside of base 11 is rotatably connected with rotating shaft 12, the surface of rotating shaft 12 is rotatably connected with quick connector force arm 13;

[0026] Further, the top of exhaust pipe 8 is fixedly connected with exhaust pipe oil cap 9, and the side of exhaust pipe 8 is provided with exhaust hole 10;

[0027] When working, the top of exhaust pipe 8 is fixedly connected with exhaust pipe oil cap 9, and the side of exhaust pipe 8 is provided with exhaust hole 10, so that the transformer oil flowing downward from the oil pillow oil outlet pipe ball valve 1 can be prevented from entering the exhaust pipe 8 and the exhaust hole 10.

[0028] Further, the two ends of the quick connector force arm 13 are respectively provided with quick connector fixing hole 15 and quick connector mounting hole 16.

[0029] When working, the two ends of the quick connector force arm 13 are respectively provided with quick connector fixing hole 15 and quick connector mounting hole 16, so that the quick connector force arm 13 can be conveniently positioned and installed.

[0030] Further, the protrusion 14 is fixedly connected to one side of the quick connector force arm 13 near the bottom, and the protrusion 14 is in an elliptical shape;

[0031] In operation, when the quick connector force arm 13 is rotated to a proper angle, the protrusion 14 is fixed to the oil outlet pipe ball valve 1 due to the elliptical structure of the protrusion 14.

[0032] Further, the size of the oil outlet pipe ball valve 1 is consistent with the size of the mounting disc 2.

[0033] In operation, the stability between the oil outlet pipe ball valve 1 and the mounting disc 2 is improved due to the structure design that the size of the oil outlet pipe ball valve 1 is consistent with the size of the mounting disc 2.

[0034] Further, the number of the quick connector force arms 13 is two, and the quick connector force arms 13 are symmetrically distributed on both sides of the mounting disc 2.

[0035] In operation, the stability of the quick connector force arm 13 during installation is improved due to the structure design that the number of the quick connector force arms 13 is two, and the quick connector force arms 13 are symmetrically distributed on both sides of the mounting disc 2.

[0036] Working principle: a special exhaust pipe 8 is added inside the test pipe 3, and the exhaust pipe 8 can move up and down freely. After the double-pressure liquid level meter is installed, the exhaust pipe 8 is moved upwards until the upper edge of the exhaust pipe 8 abuts against the lower edge of the inner spherical surface of the oil outlet pipe ball valve 1.

[0037] The oil pillow oil outlet pipe ball valve 1 is opened, the transformer oil flows down, the air is pressed out of the exhaust hole 10, the air flows out of the device through the exhaust pipe 8, the exhaust pipe oil cap 9 can prevent the transformer oil flowing down from the oil pillow oil outlet pipe ball valve 1 from entering the exhaust pipe and the exhaust hole 10, and the oil pillow oil outlet pipe ball valve 1 flange and the double-pressure liquid level meter flange originally needing to be fixed by four screws are redesigned as quick connectors that can be quickly installed.

[0038] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A main transformer oil pillow oil level rapid detection and calibration device, comprising an oil outlet pipe ball valve (1), characterized in that: The bottom of the oil outlet pipe ball valve (1) is fixedly connected with a mounting disc (2), the bottom surface of the mounting disc (2) is fixedly connected with a test pipeline (3), the side surface of the test pipeline (3) is fixedly connected with a pressure sensor one (4) and a pressure sensor two (5), the bottom of the test pipeline (3) is threadedly matched with a test pipe fixing nut (6), the bottom of the test pipe fixing nut (6) is threadedly matched with an exhaust pipe fixing nut (7), the inside of the mounting disc (2) is throughly provided with an exhaust pipeline (8), the top of the mounting disc (2) is fixedly connected with a base (11), the inside of the base (11) is rotatably connected with a rotating shaft (12), the surface of the rotating shaft (12) is rotatably connected with a quick connector force arm (13).

2. The main oil pad oil level rapid detection and verification device according to claim 1, characterized in that: The top of the exhaust pipeline (8) is fixedly connected with an exhaust pipe oil-proof cap (9), the side surface of the exhaust pipeline (8) is provided with an exhaust hole (10).

3. The main oil pad oil level rapid detection calibration device according to claim 1, characterized in that: The two ends of the quick connector force arm (13) are respectively provided with a quick connector fixing hole (15) and a quick connector mounting hole (16).

4. The main oil pad oil level rapid detection calibration device according to claim 1, characterized in that: The side of the quick connector force arm (13) near the bottom is fixedly connected with a protruding block (14), the shape of the protruding block (14) is oval.

5. The main oil pad oil level quick detection and verification device according to claim 1, characterized in that: The size of the oil outlet pipe ball valve (1) is consistent with the size of the mounting disc (2).

6. The main oil pad oil level quick detection calibration device according to claim 1, characterized in that: The number of the quick connector force arms (13) is two, and the quick connector force arms (13) are symmetrically distributed on the two sides of the mounting disc (2).

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