Transformer oil conservator oil level detection device and method

Abstract

The invention relates to a transformer oil conservator oil level detection device and a method thereof, belonging to the technical field of transformer detection equipment, comprising: a bracket; an adjustment plate, a sleeve is arranged on the bracket, and the adjustment plate is slidably connected to the bracket; a laser ruler is arranged on one side of the top of the adjustment plate, and the laser ruler is connected to the adjustment plate; a pressure gauge is arranged on the other side of the top of the adjustment plate, and the pressure gauge is connected to the adjustment plate, and the pressure gauge is connected to the transformer oil conservator to be tested through a hose; the invention uses the laser ruler and the pressure gauge in combination, so that the pressure of the pressure gauge at different positions away from the transformer oil conservator to be tested can be obtained, and the liquid level of the transformer oil conservator to be tested can be directly measured and obtained through different pressures and distances, so that not only the oil level detection is accurate, but also the oil level of the transformer oil conservator can be quickly detected, thereby improving the convenience of transformer oil conservator oil level detection, and the detection device and method of the invention are simple to operate, high in accuracy, strong in practicability, and worthy of promotion.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer detection equipment, and in particular relates to a transformer oil conservator oil level detection device and a method thereof. Background Art

[0002] The oil level of the transformer oil pillow is an important monitoring parameter of the power transformer and an important guarantee for the normal operation of the transformer. Whether the oil level of the transformer oil pillow is normal is related to the safe operation of the transformer. There are mostly two types of oil level gauges equipped with large transformers. One is a float type, which measures the liquid level of the oil pillow oil level by the floating angle of the float rod, and the other is a pressure type, which measures the height of the insulating oil level in the oil pillow through the pressure sensor at the bottom of the oil pillow. Both measurement methods will be inaccurate if they are run for too long, and maintenance personnel are still required to regularly check the actual oil level of the oil pillow. At present, the most commonly used method for maintenance personnel is through the connecting pipe method, but this method requires operators to climb to the transformer oil pillow for measurement, which is highly dangerous. Therefore, there is an urgent need for a transformer oil pillow oil level detection device and method. Summary of the invention

[0003] In view of this, the present invention provides a transformer oil conservator oil level detection device and method thereof, so as to solve the deficiencies in the prior art.

[0004] The technical solution of the present invention is: a transformer oil conservator oil level detection device, comprising: a bracket, an adjustment plate, a laser ruler, and a pressure gauge; the adjustment plate is sleeved on the bracket, and the adjustment plate is slidably connected to the bracket; the laser ruler is arranged on one side of the top of the adjustment plate, and the laser ruler is connected to the adjustment plate; the pressure gauge is arranged on the other side of the top of the adjustment plate, and the pressure gauge is connected to the adjustment plate, and the pressure gauge is connected to the transformer oil conservator to be tested through a hose.

[0005] Preferably, a tee is fixedly provided on the top of one side of the adjustment plate away from the laser ruler, the pressure gauge is located directly above the tee and is connected with the tee, and a quick connector is also provided on the adjustment plate directly below the tee, one end of the quick connector passes through the adjustment plate and is connected with the tee, and the other end of the quick connector is detachably connected to the hose, and a valve is also provided on the outside of the adjustment plate, and the valve is connected with the tee.

[0006] Preferably, a column is provided on the side of the adjustment plate away from the pressure gauge and is parallel to the bracket, an L-shaped connector is provided on one side of the column, one end of the L-shaped connector is connected to the column, and the other end is connected to the adjustment plate, a mounting seat is provided on the other side of the column, the mounting seat is connected to the column, two L-shaped clips are symmetrically provided on the side of the mounting seat away from the column and form a limiting groove therewith, the laser ruler is embedded in the limiting groove and is cooperatively connected to the limiting groove, and the L-shaped clip is cooperatively connected to the mounting seat by bolts.

[0007] Preferably, the column is an aluminum profile, and T-shaped sliders are respectively embedded on both sides of the aluminum profile close to the L-shaped connecting piece and the mounting seat and are slidably connected thereto, and the L-shaped connecting piece and the mounting seat are respectively connected to the T-shaped sliders by bolts.

[0008] Preferably, the bracket includes a base, a top plate is provided directly above the base and parallel to the base, a plurality of connecting rods are evenly provided between the base and the top plate and are parallel to each other, one end of the connecting rod is vertically fixedly connected to the base, and the other end is vertically fixedly connected to the top plate, a plurality of linear bearing guide sleeves are evenly provided on the edge of the adjusting plate, the linear bearing guide sleeve is vertically fixedly connected to the adjusting plate by bolts, the connecting rod passes through the linear bearing guide sleeve and is slidably connected to the linear bearing guide sleeve, the connecting rod is located at the bottom of the linear bearing guide sleeve and is provided with a first fixed locking ring, and the first fixed locking ring is connected to the connecting rod by a tightening bolt.

[0009] Preferably, two second fixing locking rings are respectively sleeved on both ends of the connecting rod close to the base and the top plate, and the second fixing locking rings are connected to the connecting rod by tightening bolts.

[0010] Preferably, the base is located on the outside of the connecting rod and is evenly provided with a plurality of adjustment feet, the adjustment feet are cooperatively connected to the base, and a level bubble is also provided at the top center of the base, and the level bubble is fixedly connected to the base.

[0011] A detection method for a transformer oil conservator oil level detection device comprises the following steps:

[0012] S1. Place the bracket under the oil pillow to be tested, and adjust the height of each adjusting foot according to the level bubble to make the base level;

[0013] S2. Turn on the laser ruler and adjust the position of the bracket so that the indication point of the laser ruler is at the lowest point of the oil pillow;

[0014] S3. Connect the end of the hose away from the quick connector to the valve of the tested oil pillow. Open the valve on the oil pillow, then open the valve on the tee. When the oil flowing out of the valve is stable and there are no bubbles, close the valve and the valve of the tested oil pillow.

[0015] S4. Disconnect the hose from the valve of the oil pillow to be tested. Hold the end of the hose away from the quick connector above the pressure gauge and the pressure value is greater than 0. Open the valve again to allow the oil in the hose to flow out slowly. When the pressure value of the pressure gauge gradually decreases to 0, mark the oil level at one end of the handheld hose on the column. Adjust the height of the mounting seat so that the output end of the laser ruler is flush with the mark on the column.

[0016] S5. Connect the hose to the valve of the tested oil pillow, open the valve of the tested oil pillow and the valve on the tee, and close the valve after the oil flowing out of the valve is stable and free of bubbles;

[0017] S6. After loosening the first fixed locking ring at the bottom of the adjustment plate, slide the adjustment plate downward to the second fixed locking ring at the bottom of the connecting rod, read the pressure value P1 of the pressure gauge and the distance value L1 of the laser ruler and record them;

[0018] S7, then slide the adjustment plate upward to the second fixed locking ring at the top of the connecting rod, lock the first fixed locking ring, read the pressure value P2 of the pressure gauge and the distance value L2 of the laser ruler and record them;

[0019] S8. Substitute the recorded P1, L1, P2, and L2 into the formula: H = (P2L1-P1L2) / (P1-P2) to obtain the height of the oil inside the oil pillow, where H is the height of the oil inside the oil pillow.

[0020] Compared with the prior art, the present invention provides a transformer oil conservator oil level detection device and method. By using a laser ruler in conjunction with a pressure gauge, the pressure of the pressure gauge at different positions away from the transformer oil conservator to be tested can be obtained. The liquid level of the transformer oil conservator to be tested can be directly measured and obtained through different pressures and distances. Not only is the oil level detection accurate, but it also avoids maintenance personnel from climbing the transformer, reducing operational risks, and can quickly detect the oil level of the transformer oil conservator, thereby improving the efficiency of transformer oil conservator oil level detection. By providing a mounting seat with an adjustable height, the initial position of the laser ruler can be adjusted, so that when the pressure gauge is at different atmospheric pressures, the height of the oil pressure 0 value is different, so that the output end of the laser ruler is located at a relatively high position of the pressure gauge 0 value. The accuracy of oil level detection is further improved; the laser ruler can be quickly disassembled and installed by using the mounting seat and the L-shaped clamp, which avoids damage to the laser ruler during carrying and improves the life of the device; the T-shaped slider and the aluminum profile can also improve the installation convenience of the device, making it convenient for the detection personnel to disassemble and carry it for long distances; the adjustment foot and the level bubble can be used together to ensure that the device is level, further improving the accuracy of detection; the quick connector, pressure gauge and valve connected by the three-way connection can not only quickly connect the hose, but also discharge the gas inside the hose to avoid the gas affecting the measurement result, further improving the detection accuracy; the detection device and method of the present invention are simple to operate, high in accuracy, strong in practicality, and worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 is a front view of the present invention;

[0023] Figure 3 is a back view of the present invention;

[0024] Figure 4 is a side view of the present invention;

[0025] Figure 5 It is an AA cross-sectional view of the present invention. DETAILED DESCRIPTION

[0026] The present invention provides a transformer oil conservator oil level detection device and method, as shown below Figures 1 to 5 The present invention is described with reference to the structural schematic diagram of FIG.

[0027] Example 1

[0028] like Figure 1 As shown, a transformer oil pillow oil level detection device comprises: a bracket, an adjustment plate 1, a laser ruler 2, and a pressure gauge 3; the adjustment plate 1 is sleeved on the bracket, and the adjustment plate 1 is slidably connected to the bracket; the laser ruler 2 is arranged on one side of the top of the adjustment plate 1, and the laser ruler 2 is connected to the adjustment plate 1; the pressure gauge 3 is arranged on the other side of the top of the adjustment plate 1, and the pressure gauge 3 is connected to the adjustment plate 1, and the pressure gauge 3 is connected to the transformer oil pillow to be tested through a hose. By using the laser ruler and the pressure gauge in combination, the pressure of the pressure gauge at different positions away from the transformer oil pillow to be tested can be obtained, and the liquid level of the transformer oil pillow to be tested can be directly measured and obtained through different pressures and distances. Not only is the oil level detection accurate, but it also avoids maintenance personnel from climbing the transformer, reducing the risk of operation, and can quickly detect the oil level of the transformer oil pillow, thereby improving the efficiency of the transformer oil pillow oil level detection.

[0029] Example 2

[0030] A detection method for a transformer oil conservator oil level detection device comprises the following steps:

[0031] S1. Place the bracket below the oil pillow to be tested, and adjust the height of each adjusting foot 61 according to the level bubble 62 to make the base 41 level;

[0032] S2, turn on the laser ruler 2 and adjust the position of the bracket so that the indication point of the laser ruler 2 is at the lowest point of the oil pillow;

[0033] S3, connect the end of the hose away from the quick connector 72 to the valve of the tested oil pillow, open the valve on the oil pillow, then open the valve 73 on the tee 71, and after the oil flowing out of the valve 73 is stable and free of bubbles, close the valve 73 and the valve of the tested oil pillow;

[0034] S4. Disconnect the hose from the valve of the oil pillow to be tested. The end of the handheld hose away from the quick connector 72 is located above the pressure gauge 3 and the pressure value is greater than 0. Open the valve 73 again to allow the oil in the hose to flow out slowly. When the pressure value of the pressure gauge 3 gradually decreases to 0, mark the oil level at one end of the handheld hose on the column 21. Adjust the height of the mounting seat 23 so that the output end of the laser ruler 2 is flush with the mark on the column 21.

[0035] S5, connect the hose to the valve of the tested oil pillow, open the valve of the tested oil pillow and the valve 73 on the tee 71, and close the valve 73 after the oil flowing out of the valve 73 is stable and has no bubbles;

[0036] S6. After loosening the first fixed locking ring 45 at the bottom of the adjustment plate 1, slide the adjustment plate 1 downward to the second fixed locking ring 51 at the bottom of the connecting rod 43, read the pressure value P1 of the pressure gauge 3 and the distance value L1 of the laser ruler 2 and record them;

[0037] S7, slide the adjustment plate 1 upward to the second fixed locking ring 51 at the top of the connecting rod 43, lock the first fixed locking ring 45, read the pressure value P2 of the pressure gauge 3 and the distance value L2 of the laser ruler 2 and record them;

[0038] S8. Substitute the recorded P1, L1, P2, and L2 into the formula: H = (P2L1-P1L2) / (P1-P2) to obtain the height of the oil inside the oil pillow, where H is the height of the oil inside the oil pillow.

[0039] Example 3

[0040] In order to further improve the accuracy of detection, the quick connector, pressure gauge and valve connected by a three-way connection can not only quickly connect the hose, but also discharge the gas inside the hose to prevent the gas from affecting the measurement results.

[0041] like Figure 3 , 4 As shown, preferably, a tee 71 is fixedly provided on the top of one side of the adjusting plate 1 close to the pressure gauge 3, the pressure gauge 3 is located directly above the tee 71 and is connected thereto, and a quick connector 72 is also provided on the adjusting plate 1 directly below the tee 71, one end of the quick connector 72 passes through the adjusting plate 1 and is connected to the tee 71, and the other end of the quick connector 72 is detachably connected to the hose, and a valve 73 is also provided on the outside of the adjusting plate 1, and the valve 73 is connected to the tee 71. The quick connector, pressure gauge and valve connected through the tee can not only quickly connect the hose, but also discharge the gas inside the hose to avoid the gas affecting the measurement result, thereby further improving the detection accuracy.

[0042] Example 4

[0043] In order to further improve the accuracy of detection, the initial position of the laser ruler can be adjusted by setting an adjustable height mounting bracket, so that when the pressure gauge is at different atmospheric pressures, the height of the oil pressure 0 value is different, so that the output end of the laser ruler is located at the relative height of the pressure gauge 0 value.

[0044] like Figure 2 , 5As shown, preferably, a column 21 is provided on the side of the adjustment plate 1 away from the pressure gauge 3, an L-shaped connector 22 is provided on one side of the column 21, one end of the L-shaped connector 22 is connected to the column 21, and the other end is connected to the adjustment plate 1, a mounting seat 23 is provided on the other side of the column 21, the mounting seat 23 is connected to the column 21, and two L-shaped clips 24 are symmetrically provided on the side of the mounting seat 23 away from the column 21 and form a limiting groove therewith, the laser ruler 2 is embedded in the limiting groove and is connected therewith, the L-shaped clip 24 is connected to the mounting seat 23 by bolts, the L-shaped clip 24 is connected to the mounting seat 23 by bolts, and the ranging line emitted by the laser ruler 2 is parallel to the connecting rod.

[0045] Preferably, the column 21 is an aluminum profile, and T-shaped sliders 31 are respectively embedded on both sides of the aluminum profile close to the L-shaped connector 22 and the mounting seat 23 and are slidably connected thereto. The L-shaped connector 22 and the mounting seat 23 are respectively connected to the T-shaped sliders 31 by bolts. The mounting seat and the L-shaped clamp are used in combination to quickly disassemble and install the laser ruler, thereby avoiding damage to the laser ruler during carrying and increasing the life of the device.

[0046] Example 5

[0047] In order to further improve the convenience of operation, the connecting rod is used to facilitate the up and down position adjustment of the adjustment plate, and the adjustment plate can be fixed in position when used in conjunction with the first locking ring.

[0048] Preferably, the bracket includes a base 41, a top plate 42 is provided directly above the base 41 and parallel to the top plate 42, a plurality of connecting rods 43 are evenly provided between the base 41 and the top plate 42 and are parallel to each other, one end of the connecting rod 43 is vertically fixedly connected to the base 41, and the other end is vertically fixedly connected to the top plate 42, a plurality of linear bearing guide sleeves 44 are evenly provided on the edge of the adjustment plate 1, the linear bearing guide sleeve 44 is vertically fixedly connected to the adjustment plate 1 by bolts, the connecting rod 43 passes through the linear bearing guide sleeve 44 and is slidably connected to the linear bearing guide sleeve 44, the connecting rod 43 is located at the bottom of the linear bearing guide sleeve 44 and is provided with a first fixed locking ring 45, and the first fixed locking ring 45 is connected to the connecting rod 43 by a tightening bolt.

[0049] Preferably, two second fixing locking rings 51 are respectively sleeved on both ends of the connecting rod 43 close to the base 41 and the top plate 42, and the second fixing locking rings 51 are connected to the connecting rod 43 by tightening bolts. The second fixing locking rings arranged at both ends of the connecting rod can prevent the pressure gauge and the laser ruler from colliding with the bottom plate and the top plate when the adjustment plate is moved up and down.

[0050] Example 6

[0051] In order to further improve the detection flexibility, the adjustment feet can be used in conjunction with the level bubble to ensure that the device is level in different measurement environments.

[0052] Preferably, the base 41 is evenly provided with a plurality of adjustment feet 61 on the outside of the connecting rod 43 , the adjustment feet 61 are cooperatively connected to the base 41 , and a level bubble 62 is also provided at the top center of the base 41 , and the level bubble 62 is fixedly connected to the base 41 .

[0053] The present invention provides a transformer oil conservator oil level detection device and method. By using a laser ruler in conjunction with a pressure gauge, the pressure of the pressure gauge at different positions away from the transformer oil conservator to be tested can be obtained. The liquid level of the transformer oil conservator to be tested can be directly measured and obtained through different pressures and distances. Not only is the oil level detection accurate, but it also avoids maintenance personnel from climbing the transformer, reducing operational risks, and can quickly detect the oil level of the transformer oil conservator, thereby improving the efficiency of transformer oil conservator oil level detection. By providing a mounting seat with an adjustable height, the initial position of the laser ruler can be adjusted, so that when the pressure gauge is at different altitudes, the height of the zero value of the oil pressure is different, so that the output end of the laser ruler is located at the relative height of the zero value of the pressure gauge, and further The accuracy of oil level detection is improved; the laser ruler can be quickly disassembled and installed by using the mounting seat and the L-shaped clamp, so that the laser ruler can be prevented from being damaged during carrying and the life of the device is improved; the T-shaped slider and the aluminum profile can be used together to improve the installation convenience of the device, and it is convenient for the detection personnel to disassemble and carry it for long distances; the adjustment foot and the level bubble can be used together to ensure that the device is level, and the detection accuracy is further improved; the quick connector, pressure gauge and valve connected by the three-way connection can not only quickly connect the hose, but also discharge the gas inside the hose, so as to prevent the gas from affecting the measurement result and further improve the detection accuracy; the detection device and method of the present invention are simple to operate, high in accuracy, strong in practicality, and worthy of promotion.

[0054] The above disclosure is only a preferred specific embodiment of the present invention, but the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A transformer oil conservator oil level detection device, characterized in that: include: Bracket; An adjusting plate (1) is sleeved on a bracket, and the adjusting plate (1) is slidably connected to the bracket; a laser ruler (2) is arranged on one side of the top of the adjusting plate (1), and the laser ruler (2) is connected to the adjusting plate (1); a pressure gauge (3) is arranged on the other side of the top of the adjusting plate (1), and the pressure gauge (3) is connected to the adjusting plate (1), and the pressure gauge (3) is connected to the oil pillow of the transformer to be tested through a hose; A tee (71) is fixedly provided on the top of the side of the adjustment plate (1) away from the laser ruler (2); the pressure gauge (3) is located directly above the tee (71) and is connected thereto; a quick connector (72) is also provided on the adjustment plate (1) directly below the tee (71); one end of the quick connector (72) passes through the adjustment plate (1) and is connected to the tee (71); the other end of the quick connector (72) is detachably connected to a hose; a valve (73) is also provided on the outside of the adjustment plate (1); the valve (73) is connected to the tee (71); The adjusting plate (1) is provided with a column (21) on the side away from the pressure gauge (3) and parallel to the bracket; an L-shaped connecting piece (22) is provided on one side of the column (21); one end of the L-shaped connecting piece (22) is connected to the column (21) and the other end is connected to the adjusting plate (1); a mounting seat (23) is provided on the other side of the column (21); the mounting seat (23) is connected to the column (21); two L-shaped clamps (24) are symmetrically provided on the side away from the column (21) and form a limiting groove with the mounting seat (23); the laser ruler (2) is embedded in the limiting groove and is connected with the limiting groove; the L-shaped clamp (24) is connected with the mounting seat (23) by bolts; The column (21) is an aluminum profile, and T-shaped sliders (31) are respectively embedded on both sides of the aluminum profile close to the L-shaped connecting piece (22) and the mounting seat (23) and are slidably connected thereto, and the L-shaped connecting piece (22) and the mounting seat (23) are respectively connected to the T-shaped sliders (31) by bolts; The bracket comprises a base (41), a top plate (42) is provided directly above the base (41) and is parallel to the top plate (42), a plurality of connecting rods (43) are uniformly provided between the base (41) and the top plate (42) and are parallel to each other, one end of the connecting rod (43) is vertically fixedly connected to the base (41), and the other end is vertically fixedly connected to the top plate (42), a plurality of linear bearing guide sleeves (44) are uniformly provided on the edge of the adjustment plate (1), the linear bearing guide sleeve (44) is vertically fixedly connected to the adjustment plate (1) by bolts, the connecting rod (43) passes through the linear bearing guide sleeve (44) and is slidably connected to the linear bearing guide sleeve (44), a first fixed locking ring (45) is provided on the bottom of the connecting rod (43) and the first fixed locking ring (45) is connected to the connecting rod (43) by a fixing bolt.

2. A transformer oil conservator oil level detection device according to claim 1, characterized in that: Two second fixing lock rings (51) are respectively sleeved on both ends of the connecting rod (43) close to the base (41) and the top plate (42), and the second fixing lock rings (51) are connected to the connecting rod (43) via fixing bolts.

3. A transformer oil conservator oil level detection device according to claim 2, characterized in that: The base (41) is evenly provided with a plurality of adjustment feet (61) on the outside of the connecting rod (43), the adjustment feet (61) being cooperatively connected to the base (41), and a leveling bubble (62) is also provided at the top center of the base (41), and the leveling bubble (62) is fixedly connected to the base (41).

4. The detection method of a transformer oil conservator oil level detection device according to claim 3, characterized in that: The following steps are involved: S1. Place the bracket below the oil pillow to be tested, and adjust the height of each adjusting foot (61) according to the level bubble (62) so that the base (41) is level; S2. Turn on the laser ruler (2) and adjust the position of the bracket so that the indication point of the laser ruler (2) is located at the lowest point of the oil pillow; S3. Connect the end of the hose away from the quick connector (72) to the valve of the oil pillow to be tested. After opening the valve on the oil pillow, open the valve (73) on the tee (71). After the oil flowing out of the valve (73) is stable and free of bubbles, close the valve (73) and the valve of the oil pillow to be tested. S4. Disconnect the hose from the valve of the oil pillow to be tested. Hold the end of the hose away from the quick connector (72) above the pressure gauge (3) and ensure that the pressure value is greater than 0. Open the valve (73) again to allow the oil in the hose to flow out slowly. When the pressure value of the pressure gauge (3) gradually decreases to 0, mark the oil level at one end of the hose on the column (21). Adjust the height of the mounting base (23) so that the output end of the laser ruler (2) is flush with the mark on the column (21). S5, connect the hose to the valve of the tested oil pillow, open the valve of the tested oil pillow and the valve (73) on the tee (71), and close the valve (73) after the oil flowing out of the valve (73) is stable and free of bubbles; S6. After loosening the first fixed locking ring (45) at the bottom of the adjustment plate (1), slide the adjustment plate (1) downward to the second fixed locking ring (51) at the bottom of the connecting rod (43), read the pressure value P1 of the pressure gauge (3) and the distance value L1 of the laser ruler (2), and record them; S7, slide the adjustment plate (1) upward to the second fixed locking ring (51) at the top of the connecting rod (43), lock the first fixed locking ring (45), read the pressure value P2 of the pressure gauge (3) and the distance value L2 of the laser ruler (2), and record them; S8. Substitute the recorded P1, L1, P2, and L2 into the formula: H=(P2L1-P1L2) / (P1-P2) to obtain the height of the oil inside the oil pillow, where H is the height of the oil inside the oil pillow.

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