Device for measuring oil level of transformer corrugated pipe oil conservator through pressure method

Abstract

The utility model discloses a device for measuring the oil level of a transformer corrugated pipe oil conservator by a pressure method, which is characterized in that the upper surface of a pressure-sensitive sensor is fixedly connected with a connecting block, the lower surface of the pressure-sensitive sensor and the upper surface of the connecting block are fixedly connected with a supporting column, and the other end of the supporting column is fixedly connected with a flange plate; a conveying pipe is fixedly connected to the side surface of the pressure-sensitive sensor, a connecting pipe is fixedly connected to the end, away from the pressure-sensitive sensor, of the conveying pipe, a groove is fixedly connected to the inner surface of the connecting pipe, a fixing plate is fixedly connected to the inner surface of the groove, a spring is fixedly connected to the upper surface of the fixing plate, and a clamping block is fixedly connected to the other end of the spring. Through cooperation of the pressure-sensitive sensor, the connecting block, the supporting column and the flange plate, the sensor can be installed at the oil supplementing port of the transformer at any time without power failure, and the sensor is convenient to maintain in time when any problem occurs in the operation process and is not affected by the operation state of the transformer.

Description

Technical Field

[0001] The utility model relates to the technical field of oil level monitoring, in particular to a device for measuring the oil level of a transformer bellows oil conservator by using a pressure method. Background Art

[0002] The oil level in the oil storage cabinet is one of the important operating parameters of the power transformer. It is of great significance to detect abnormal oil level in time and take corresponding measures to ensure the safe operation of the power transformer. When the oil level is too high, the internal oil pressure of the transformer may increase. When the oil level is too low, the transformer is running at low load or the temperature drops sharply, it may cause less oil in the main body tank, causing insulation failure and the risk of internal flashover. At present, the traditional oil level monitoring element of the transformer adopts the bellows liner position to install an indicator mark, and displays the oil level through the observation window. However, the bellows will get stuck during operation, which will cause the problem of false oil level. Conventional online monitoring equipment needs to be installed by power outage, which is troublesome to install. This device can be installed at the oil filling port of the transformer and can be installed at any time without power outage. Any problem in the operation process is convenient for timely maintenance and is not affected by the operating status of the transformer. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a device for measuring the oil level of the transformer bellows oil pillow by the pressure method. Through the cooperation of the pressure-sensitive sensor, the connecting block, the supporting column and the flange, the sensor can be installed at the oil filling port of the transformer, and can be installed at any time without power outage. Any problems that occur during operation are convenient for timely maintenance and are not affected by the operating state of the transformer. Through the cooperation of the connecting pipe, the groove, the fixing plate, the spring and the clamping plate, the connection between the sensor and the oil filling port can be fixed, ensuring that the connection between the sensor and the oil filling port is stable and reliable, ensuring the normal operation of the sensor, preventing the connection from loosening due to long-term use, and extending the service life.

[0004] The utility model also provides a device for measuring the oil level of a transformer bellows oil conservator by the pressure method, comprising: a pressure-sensitive sensor, a connecting block is fixedly connected to the upper surface of the pressure-sensitive sensor, a supporting column is fixedly connected to the lower surface of the pressure-sensitive sensor and the upper surface of the connecting block, a flange is fixedly connected to the other end of the supporting column, a delivery pipe is fixedly connected to the side surface of the pressure-sensitive sensor, an end of the delivery pipe away from the pressure-sensitive sensor is fixedly connected to the connecting pipe, a groove is fixedly connected to the inner surface of the connecting pipe, a fixing plate is fixedly connected to the inner surface of the groove, a spring is fixedly connected to the upper surface of the fixing plate, and a clamping block is fixedly connected to the other end of the spring. Through the cooperation of the pressure-sensitive sensor, the connecting block, the supporting column and the flange, the sensor can be installed at the oil filling port of the transformer, and can be installed at any time without power outage. If any problem occurs during operation, it is convenient to repair it in time and is not affected by the operating state of the transformer; through the cooperation of the connecting pipe, the groove, the fixing plate, the spring and the clamping plate, the connection between the sensor and the oil filling port can be fixed, so as to ensure that the connection between the sensor and the oil filling port is stable and reliable, ensure the normal operation of the sensor, prevent the connection from loosening due to long-term use, and extend the service life.

[0005] According to the device for measuring the oil level of a transformer bellows oil conservator by a pressure method described in the utility model, the diameter of the flange is 100 mm, which can ensure the precision of the device.

[0006] According to the device for measuring the oil level of a transformer bellows oil conservator by a pressure method described in the utility model, a mounting hole is provided on the flange, and the diameter of the mounting hole is 11 mm, so that the entire device can be stably installed.

[0007] According to the device for measuring the oil level of the transformer bellows oil conservator by the pressure method described in the utility model, bolt holes are arranged on the flange plate, and the centerline circle diameter of the bolt holes is 75 mm, which can ensure the stability of the equipment.

[0008] According to the device for measuring the oil level of a transformer bellows oil conservator by a pressure method described in the utility model, the fixing plate is fixedly connected to the connecting pipe, and the material of the spring is aluminum alloy, which can improve the strength of the material and extend the service life.

[0009] According to the device for measuring the oil level of a transformer bellows oil conservator by a pressure method described in the utility model, one end of the clamping block is inclined, and the inclined shape is located at the front end of the clamping block, which can ensure the effective sliding of the oil inlet pipe.

[0010] According to the device for measuring the oil level of a transformer bellows oil pillow by a pressure method described in the utility model, the inclined bottom is lower than the groove, and the inclined top is higher than the groove, which can ensure that the oil inlet pipe slides into the connecting pipe and ensures a tight connection between the oil inlet pipe and the sensor.

[0011] According to the device for measuring the oil level of a transformer bellows oil conservator by a pressure method described in the utility model, the clamping block is movably connected to the groove, and the clamping block is movably connected to the connecting pipe, which can ensure the effective movement of the clamping block.

[0012] Beneficial Effects

[0013] 1. Compared with the prior art, this new device for measuring the oil level of the transformer bellows oil pillow by the pressure method can install the sensor at the oil filling port of the transformer through the cooperation of the pressure-sensitive sensor, the connecting block, the supporting column and the flange. It can be installed at any time without power outage. If any problem occurs during operation, it is convenient for timely maintenance and is not affected by the operating status of the transformer.

[0014] 2. Compared with the prior art, this new device for measuring the oil level of the transformer bellows oil pillow by the pressure method can fix the connection between the sensor and the oil filling port through the cooperation of the connecting pipe, groove, fixing plate, spring and clamping plate, so as to ensure the stable and reliable connection between the sensor and the oil filling port, ensure the normal operation of the sensor, prevent the connection from loosening due to long-term use, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a side structural diagram of the device for measuring the oil level of the transformer bellows oil conservator by the pressure method of the utility model;

[0017] Figure 2 This is a schematic diagram of the connecting pipe connection structure of the device for measuring the oil level of the transformer bellows oil conservator by the pressure method of the utility model;

[0018] Figure 3 This is a schematic diagram of the spring connection structure of the device for measuring the oil level of the transformer bellows oil conservator by the pressure method of the utility model;

[0019] Figure 4 This is a top view structural diagram of a device for measuring the oil level of a transformer bellows oil conservator by a pressure method according to the utility model.

[0020] Legend:

[0021] 1. Pressure sensitive sensor; 2. Connecting block; 3. Support column; 4. Flange; 5. Mounting hole; 6. Delivery pipe; 7. Connecting pipe; 8. Groove; 9. Fixing plate; 10. Spring; 11. Block. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model embodiment provides a device for measuring the oil level of a transformer bellows oil pillow by a pressure method, which includes: a pressure-sensitive sensor 1 for monitoring the pressure of the bellows oil pillow oil level; a connecting block 2 is fixedly connected to the upper surface of the pressure-sensitive sensor 1 for connecting a support column 3; a supporting column 3 is fixedly connected to the lower surface of the pressure-sensitive sensor 1 and the upper surface of the connecting block 2 for supporting a flange 4; a flange 4 is fixedly connected to the other end of the support column 3 for installing the entire device; a delivery pipe 6 is fixedly connected to the side surface of the pressure-sensitive sensor 1 for detecting a pressure delivery signal; a connecting pipe 7 is fixedly connected to one end of the delivery pipe 6 away from the pressure-sensitive sensor 1 for connecting the delivery pipe 7 with the corrugated oil pipe; a groove 8 is fixedly connected to the inner surface of the connecting pipe 7 for placing a fixing plate 9; a fixing plate 9 is fixedly connected to the inner surface of the groove 8 for fixing a spring 10; a spring 10 is fixedly connected to the upper surface of the fixing plate 9 for popping out a card block 11; a card block 11 is fixedly connected to the other end of the spring 10 for blocking the oil replenishing port.

[0024] The diameter of the flange 4 is 100mm, and a mounting hole 5 is provided on the flange 4 for installing and fixing the entire equipment. The diameter of the mounting hole 5 is 11mm. A bolt hole is provided on the flange 4, and the centerline circle diameter of the bolt hole is 75mm. The fixing plate 9 is fixedly connected to the connecting pipe 7 for fixing the fixing plate 9. The material of the spring 10 is aluminum alloy for improving the material strength. One end of the block 11 is inclined, which is used for sliding and squeezing the block 11 at the oil replenishing port. The inclined shape is located at the front end of the block 11 for squeezing the block 11. The bottom of the inclined shape is lower than the groove 8, and the top of the inclined shape is higher than the groove 8, which is used for the oil inlet pipe to slide smoothly to the inclined end of the card plate 11. The block 11 is movably connected to the groove 8 for the movement of the block 11, and the block 11 is movably connected to the connecting pipe 7 for clamping the oil replenishing port.

[0025] Working principle: When in use, insert the oil filling port into the connecting pipe 7, and then press down the spring 10 through the tilted front end of the clamping block 11, and then the oil filling port passes through the clamping block 11 to connect with the delivery pipe 6, and then install the equipment to a suitable position through the mounting hole 5 on the flange 4, and then support the pressure sensitive sensor 1 through the connecting block 2 and the support column 3, and then the pressure sensitive sensor 1 can instantly reflect the fluctuation of the oil level by monitoring the oil level change sensor.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for measuring the oil level of a transformer bellows oil conservator by pressure method, characterized in that: include: A pressure-sensitive sensor (1), wherein the upper surface of the pressure-sensitive sensor (1) is fixedly connected to a connecting block (2), the lower surface of the pressure-sensitive sensor (1) and the upper surface of the connecting block (2) are fixedly connected to a supporting column (3), the other end of the supporting column (3) is fixedly connected to a flange (4), the side surface of the pressure-sensitive sensor (1) is fixedly connected to a delivery pipe (6), the end of the delivery pipe (6) away from the pressure-sensitive sensor (1) is fixedly connected to a connecting pipe (7), the inner surface of the connecting pipe (7) is fixedly connected to a groove (8), the inner surface of the groove (8) is fixedly connected to a fixing plate (9), the upper surface of the fixing plate (9) is fixedly connected to a spring (10), and the other end of the spring (10) is fixedly connected to a clamping block (11).

2. The device for measuring the oil level of transformer bellows oil conservator by pressure method according to claim 1 is characterized in that: The diameter of the flange (4) is 100 mm.

3. The device for measuring the oil level of transformer bellows oil conservator by pressure method according to claim 1 is characterized in that: The flange (4) is provided with a mounting hole (5), and the diameter of the mounting hole (5) is 11 mm.

4. The device for measuring the oil level of a transformer bellows oil conservator by pressure method according to claim 1 is characterized in that: The flange (4) is provided with bolt holes, and the centerline circle diameter of the bolt holes is 75 mm.

5. The device for measuring the oil level of a transformer bellows oil conservator by pressure method according to claim 1 is characterized in that: The fixing plate (9) is fixedly connected to the connecting pipe (7), and the spring (10) is made of aluminum alloy.

6. The device for measuring the oil level of a transformer bellows oil conservator by pressure method according to claim 1 is characterized in that: One end of the card block (11) is inclined, and the inclined shape is located at the front end of the card block (11).

7. The device for measuring the oil level of a transformer bellows oil conservator by pressure method according to claim 6 is characterized in that: The bottom of the inclined shape is lower than the groove (8), and the top of the inclined shape is higher than the groove (8).

8. The device for measuring the oil level of a transformer bellows oil conservator by pressure method according to claim 1 is characterized in that: The clamping block (11) is movably connected to the groove (8), and the clamping block (11) is movably connected to the connecting pipe (7).

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