CN216815896U - Light transformer oil pressure test equipment - Google Patents
Light transformer oil pressure test equipment Download PDFInfo
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- CN216815896U CN216815896U CN202122750490.5U CN202122750490U CN216815896U CN 216815896 U CN216815896 U CN 216815896U CN 202122750490 U CN202122750490 U CN 202122750490U CN 216815896 U CN216815896 U CN 216815896U
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Abstract
The utility model discloses a light transformer oil pressure test device which comprises a box body, a flange, a sealing plate, an air bag, an air inlet pipe, a barometer, an air inlet valve, an air bottle, an oil inlet valve, a connecting pipe, an oil outlet pipe and an oil outlet valve, wherein the box body is provided with a sealing plate; the sealing plate is arranged on the inner circle of the flange, and one surface of the sealing plate is provided with an air bag; the bottom of the box body is provided with an oil inlet pipe, and the top end of the box body is provided with a connecting flange; the air bag is inserted into the box body, and the flange is connected with the connecting flange; the oil outlet pipe is provided with an oil outlet valve, is arranged on the other surface of the sealing plate, penetrates through the sealing plate and is communicated with the box body; an oil inlet valve is mounted on the connecting pipe, one end of the connecting pipe is connected with the oil inlet pipe, and the other end of the connecting pipe is connected with an oil outlet of the transformer oil tank; the air inlet pipe is provided with an air pressure gauge and an air inlet valve; and one end of the air bag is connected with the air bag, and the other end of the air bag is connected with the air bottle. The leakage testing device has the characteristics of simple structure, high leakage testing accuracy and the like.
Description
Technical Field
The utility model belongs to the technical field of transformer test equipment, and particularly relates to light transformer oil pressure test equipment.
Background
Before leaving the factory, after the maintenance work related to a plurality of transformers such as replacing an oil conservator capsule, replacing an oil-resistant rubber ring and the like, the transformer needs to be tested for oil pressure, namely leakage is tested, the purpose is to test whether the transformer has leakage, if the transformer has leakage, the loss of transformer oil is caused, the oil in the transformer can be polluted, and the operation quality of the transformer is influenced. The leakage test of the transformer generally adopts two methods of air pressure leakage test and oil tank static pressure leakage test, the oil tank static pressure leakage test adjusts the leakage test pressure by adjusting the height of the liquid level of an oil tank, the air pressure leakage test observes whether the pressure change leaks or not by adjusting the pressure of air filled in the oil tank, the existing air pressure leakage test operation is complex, the skill level of operators is uneven, the leakage test accuracy is not high, and leakage points are not easy to find. In view of this, a light-weight transformer oil pressure test device with high leakage test accuracy and simple operation needs to be designed.
Disclosure of Invention
The utility model aims to provide light transformer oil pressure test equipment with simple structure and high leakage test accuracy aiming at the defects of the prior art.
In order to realize the purpose of the utility model, the following technical scheme is adopted:
a light transformer oil pressure test device comprises a box body, a flange, a sealing plate, an air bag, an air inlet pipe, a barometer, an air inlet valve, an air bottle, an oil inlet valve, a connecting pipe, an oil outlet pipe and an oil outlet valve; the sealing plate is arranged on the inner circle of the flange, and an air bag is arranged on one surface of the sealing plate; the bottom of the box body is provided with an oil inlet pipe, and the top end of the box body is provided with a connecting flange; the air bag is inserted into the box body, and the flange is connected with the connecting flange; the oil outlet pipe is provided with an oil outlet valve, is arranged on the other surface of the sealing plate, penetrates through the sealing plate and is communicated with the box body; an oil inlet valve is mounted on the connecting pipe, one end of the connecting pipe is connected with the oil inlet pipe, and the other end of the connecting pipe is connected with an oil outlet of the transformer oil tank; the air inlet pipe is provided with an air pressure gauge and an air inlet valve; and one end of the air bag is connected with the air bag, and the other end of the air bag is connected with the air bottle.
As a further improvement of the technical scheme, the light transformer oil pressure test equipment also comprises a movable joint; the air bag is connected with one end of the air inlet pipe through a movable joint.
As a further improvement of the technical scheme, the air inlet pipe comprises a first air inlet pipe, an inflation joint and a second air inlet pipe; an air inlet valve and an air pressure gauge are arranged on the first air inlet pipe, and one end of the first air inlet pipe is connected with the air bag; one end of the second air inlet pipe is connected with the air bottle, and the other end of the second air inlet pipe is connected with the other end of the first air inlet pipe through an air charging connector.
As a further improvement of the technical scheme, the light transformer oil pressure test equipment also comprises a first flange plate and a second flange plate; one end of the connecting pipe is connected with the oil inlet pipe through the first flange plate, and the other end of the connecting pipe is connected with an oil outlet of the transformer oil tank through the second flange plate.
As the further improvement of the technical scheme, the utility model relates to a floating ball liquid level meter of the light transformer oil pressure test equipment; the floating ball liquid level meter is arranged on the sealing plate, wherein the inserted bar and the floating ball are inserted into the box body.
As a further improvement of the technical scheme, the air bag is made of rubber.
As a further improvement of the technical scheme, the gas cylinder is a high-pressure nitrogen cylinder.
As a further improvement of the technical scheme, the connecting pipe is a high-pressure hose.
As a further improvement of the technical scheme, the air inlet valve, the oil inlet valve and the oil outlet valve are all ball valves.
Compared with the prior art, the utility model has the advantages that:
1. the leakage testing device is high in leakage testing accuracy, and leakage points of the transformer are easy to find out when the leakage testing device is used; isolating an oil conservator in a transformer, closing an oil inlet valve and an air inlet valve, connecting an oil tank of the transformer with a tank body through a connecting pipe, opening the oil inlet valve and an oil outlet valve, injecting oil liquid of the oil tank of the transformer into the tank body, discharging air in the tank body through an oil outlet pipe, closing the oil outlet valve after the tank body is filled with the oil liquid, opening the air inlet valve, filling gas in a gas cylinder into a gas bag, closing the valve when the gas pressure in the gas bag is stably kept at 0.03MPa, standing for 24 hours, recording the gas pressure in the gas bag in the period, calculating the change size of the gas pressure, indicating that the transformer does not leak if the gas pressure change is small, indicating that the transformer does not leak if the gas pressure change is in a reasonable range, indicating that the transformer does leak if the gas pressure change exceeds the reasonable range, checking the transformer body, finding a leak trace through the oil liquid leakage, finding a point, and testing the leak relatively to the traditional gas pressure, the method is simple to operate, high in leakage testing accuracy and easy to find leakage points.
2. The flange and the connecting flange are connected through the bolts and the nuts, so that the disassembly is convenient, the sealing performance is strong, the box body is not easy to leak, meanwhile, the box body and the air bag are convenient for workers to inspect and maintain in the later period, the disassembly time is saved, and the working efficiency is improved.
3. The air bag and the air inlet pipe are connected through the movable joint, so that the detachable connection of the air bag and the air inlet pipe is realized, when a box body is inspected and maintained, the air bag is separated from the air inlet pipe, the weight of parts such as the air inlet pipe and the air bottle is reduced, the detachment burden is reduced, the flange and the connecting flange are convenient to detach and separate, the air bag is convenient to maintain and replace, the installation time of the air bag and the air inlet pipe is shortened, and the installation efficiency is improved.
4. The connecting pipe comprises a first air inlet pipe, an inflation connector and a second air inlet pipe, wherein before oil liquid of a transformer oil tank is injected into a tank body, the first air inlet pipe and the second air inlet pipe are detached and separated, an air inlet valve and an oil outlet valve are opened, then the tank body is filled with the oil liquid, the oil pressure in the tank body is gradually increased in the filling process, gas in the air bag is extruded out of the air bag, the air bag is deflated, after the tank body is filled with the oil liquid, the oil outlet valve is closed, then the first air inlet pipe and the second air inlet pipe are connected through the connector, the gas in the gas cylinder is filled into the air bag, the gas in the air bag is ensured to be single gas, the stability in the air bag is enhanced, the air pressure of the air bag is not easily influenced by the outside, and when the air pressure in the air bag is kept at 0.03MPa, the air inlet valve is closed, and the air bag is inflated.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a light transformer oil pressure test device according to the present invention;
FIG. 2 is an exploded view of the flange and tank of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
names and serial numbers of the components in the figure: 1-box, 2-flange, 3-sealing plate, 4-air bag, 5-air inlet pipe, 51-first air inlet pipe, 52-air charging connector, 53-second air inlet pipe, 6-air pressure gauge, 7-air inlet valve, 8-air bottle, 9-oil inlet valve, 10-connecting pipe, 11-oil outlet pipe, 12-oil outlet valve, 13-oil inlet pipe, 14-connecting flange, 15-movable connector, 16-first flange plate, 17-second flange plate and 18-floating ball liquid level meter.
Detailed Description
In order to make the technical solutions in the present application better understood, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application shall fall within the protection scope of the present application.
Example 1:
as shown in fig. 1 and 3, the light transformer oil pressure test device comprises a box body 1, a flange 2, a sealing plate 3, an air bag 4, an air inlet pipe 5, a barometer 6, an air inlet valve 7, an air bottle 8, an oil inlet valve 9, a connecting pipe 10, an oil outlet pipe 11 and an oil outlet valve 12; the sealing plate 3 is arranged on the inner circle of the flange 2, and an air bag 4 is arranged on one surface of the sealing plate; an oil inlet pipe 13 is arranged at the bottom of the box body 1, and a connecting flange 14 is arranged at the top end of the box body; the air bag 4 is inserted into the box body 1, and the flange 2 is connected with the connecting flange 14; the oil outlet pipe 11 is provided with an oil outlet valve 12, and the oil outlet pipe 11 is arranged on the other surface of the sealing plate 3, penetrates through the sealing plate 3 and is communicated with the box body 1; an oil inlet valve 9 is mounted on the connecting pipe 10, one end of the connecting pipe is connected with an oil inlet pipe 13, and the other end of the connecting pipe is connected with an oil outlet of a transformer oil tank; the air inlet pipe 5 is provided with an air pressure gauge 6 and an air inlet valve 7; and one end thereof is connected with the air bag 4 and the other end thereof is connected with the air bottle 8.
The working mode is as follows:
isolating an oil conservator in a transformer, closing an oil inlet valve 9 and an air inlet valve 7, connecting an oil tank of the transformer with a tank body 1 through a connecting pipe 10, opening the oil inlet valve 9 and an oil outlet valve 12, injecting oil in the oil tank of the transformer into the tank body 1, indicating that the tank body 1 is filled with the oil when the oil outlet pipe 11 has the oil flowing out, closing the oil outlet valve 12, opening the air inlet valve 7, injecting gas in an air bottle 8 into an air bag 4, expanding and expanding the air bag 4, extruding the oil in the tank body 1, observing an air pressure gauge 6, closing the air inlet valve 7 when the air pressure gauge 6 stably displays that the air pressure is 0.03MPa, standing for 24 hours, recording the air pressure in the air bag 4 during the period, calculating the air pressure change, indicating that the transformer has no leakage if the air pressure change is in a reasonable range, indicating that the transformer has the leakage if the air pressure change is beyond the reasonable range, checking the transformer body, the leakage point can be found through leakage traces of oil, and compared with the traditional air pressure leakage test, the leakage test device is simple to operate, high in leakage test accuracy, easy to find the leakage point and short in finding time.
Example 2:
compared with example 1, the difference is that: a movable joint 15 is additionally installed.
The air bag 4 is connected with one end of the air inlet pipe 5 through a movable joint 15.
Pass through union 15 with gasbag 4 and intake pipe 5 and be connected, realize dismantling of gasbag 4 and intake pipe 5 and be connected, when inspection maintenance box 1, earlier with gasbag 4 and intake pipe 5 separation, reduce parts weight such as intake pipe 5 and gas cylinder 8, alleviate and dismantle the burden, the separation is dismantled to flange 2 and flange 14 of being convenient for, gasbag 4 is changed in the maintenance of being convenient for simultaneously, reduce the installation time of gasbag 4 and intake pipe 5, and the efficiency of installation is improved.
Example 3:
as shown in fig. 2, compared with embodiment 1, there are differences in that: the air inlet pipe 5 comprises a first air inlet pipe 51, an air charging connector 52 and a second air inlet pipe 53; the first air inlet pipe 51 is provided with an air inlet valve 7 and an air pressure gauge 6, and one end of the first air inlet pipe is connected with the air bag 4; one end of the second air inlet pipe 53 is connected with the air bottle 8, and the other end of the second air inlet pipe is detachably connected with the other end of the first air inlet pipe 51 through the inflation connector 52.
The working mode is as follows:
before transformer tank's fluid injection box 1, dismantle the separation with first intake pipe 51 and second intake pipe 53 earlier, reopen air inlet valve 7 and delivery valve 12, annotate fluid to box 1 afterwards, annotate the oil pressure in the in-process box 1 and rise gradually, extrude gasbag 4 with the gas in the gasbag 4, make gasbag 4 shrivel, after box 1 annotates fluid, close out oil valve 12, connect first intake pipe 51 and second intake pipe 53 through inflating joint 52 afterwards, and pour into gasbag 4 with the gas in the gas cylinder 8, guarantee that the gas in the gasbag 4 is single gas, stability in the reinforcing gasbag 4, make 4 atmospheric pressure of gasbag be difficult for receiving external influence, when the atmospheric pressure in the gasbag 4 stably keeps 0.03Mpa, close air inlet valve 7, accomplish the inflation to gasbag 4.
Example 4:
compared with example 3, the difference is that: a first flange 16 and a second flange 17 are added.
One end of the connecting pipe 10 is connected with the oil inlet pipe 12 through a first flange 16, and the other end thereof is connected with the oil outlet of the transformer oil tank through a second flange 17.
Example 5:
compared with any of examples 1 to 4, the difference is that: a float level gauge 18 is additionally installed.
The floating ball liquid level meter 18 is arranged on the sealing plate 3, wherein the inserted rod and the floating ball are inserted into the box body 1, so that the working personnel can observe the oil in the box body 1 in real time.
Example 6:
compared with example 1, the difference is that: the bladder 4 is made of rubber.
Example 7:
compared with example 1, the difference is that: one form of construction of the gas cylinder 8 is given.
The gas cylinder 8 is a high-pressure nitrogen cylinder, the nitrogen is strong in stability, free of spontaneous combustion and combustion supporting, small in expansion coefficient affected by temperature, the air bag 4 is filled with the nitrogen, and the air pressure of the air bag 4 is not easily affected by the temperature.
Example 8:
compared with example 1, the difference is that: one form of construction of the connecting tube 10 is shown.
The connection pipe 10 is a high pressure hose.
Example 9:
compared with example 1, the difference is that: an air inlet valve 7, an oil inlet valve 9 and an oil outlet valve 12 are shown in one structural form.
The air inlet valve 7, the oil inlet valve 9 and the oil outlet valve 12 are all ball valves.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the utility model.
Claims (9)
1. The utility model provides a light-duty transformer oil pressure test equipment which characterized in that: the gas-liquid separation device comprises a box body (1), a flange (2), a sealing plate (3), an air bag (4), an air inlet pipe (5), a barometer (6), an air inlet valve (7), a gas cylinder (8), an oil inlet valve (9), a connecting pipe (10), an oil outlet pipe (11) and an oil outlet valve (12);
the sealing plate (3) is arranged on the inner circle of the flange (2), and an air bag (4) is arranged on one surface of the sealing plate;
an oil inlet pipe (13) is arranged at the bottom of the box body (1), and a connecting flange (14) is installed at the top end of the oil inlet pipe;
the air bag (4) is inserted into the box body (1), and the flange (2) is connected with the connecting flange (14);
the oil outlet pipe (11) is provided with an oil outlet valve (12), and the oil outlet pipe (11) is arranged on the other surface of the sealing plate (3), penetrates through the sealing plate (3) and is communicated with the box body (1);
an oil inlet valve (9) is mounted on the connecting pipe (10), one end of the connecting pipe is connected with an oil inlet pipe (13), and the other end of the connecting pipe is connected with an oil outlet of a transformer oil tank;
the air inlet pipe (5) is provided with a barometer (6) and an air inlet valve (7); and one end of the air bag is connected with the air bag (4), and the other end is connected with the air bottle (8).
2. The lightweight transformer oil pressure test apparatus of claim 1, wherein: also comprises a movable joint (15);
the air bag (4) is connected with one end of the air inlet pipe (5) through a movable joint (15).
3. The lightweight transformer oil pressure test apparatus of claim 1, wherein: the air inlet pipe (5) comprises a first air inlet pipe (51), an air charging connector (52) and a second air inlet pipe (53);
an air inlet valve (7) and an air pressure gauge (6) are arranged on the first air inlet pipe (51), and one end of the first air inlet pipe is connected with the air bag (4);
one end of the second air inlet pipe (53) is connected with the air bottle (8), and the other end of the second air inlet pipe is connected with the other end of the first air inlet pipe (51) through an air charging connector (52).
4. The lightweight transformer oil pressure test device according to claim 1, characterized in that: the flange plate also comprises a first flange plate (16) and a second flange plate (17);
one end of the connecting pipe (10) is connected with the oil inlet pipe (13) through a first flange plate (16), and the other end of the connecting pipe is connected with an oil outlet of the transformer oil tank through a second flange plate (17).
5. The light transformer oil pressure test apparatus according to any one of claims 1 to 4, wherein: the device also comprises a floating ball liquid level meter (18);
the floating ball liquid level meter (18) is arranged on the sealing plate (3), wherein the inserted bar and the floating ball are inserted into the box body (1).
6. The lightweight transformer oil pressure test device according to claim 1, characterized in that: the air bag (4) is made of rubber.
7. The lightweight transformer oil pressure test apparatus of claim 1, wherein: the gas cylinder (8) is a high-pressure nitrogen cylinder.
8. The lightweight transformer oil pressure test apparatus of claim 1, wherein: the connecting pipe (10) is a high-pressure hose.
9. The lightweight transformer oil pressure test apparatus of claim 1, wherein: the air inlet valve (7), the oil inlet valve (9) and the oil outlet valve (12) are all ball valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122750490.5U CN216815896U (en) | 2021-11-11 | 2021-11-11 | Light transformer oil pressure test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122750490.5U CN216815896U (en) | 2021-11-11 | 2021-11-11 | Light transformer oil pressure test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN216815896U true CN216815896U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122750490.5U Active CN216815896U (en) | 2021-11-11 | 2021-11-11 | Light transformer oil pressure test equipment |
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| CN (1) | CN216815896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553998A (en) * | 2024-01-11 | 2024-02-13 | 南京立业电力变压器有限公司 | Static pressure constant voltage device and method for transformer |
-
2021
- 2021-11-11 CN CN202122750490.5U patent/CN216815896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553998A (en) * | 2024-01-11 | 2024-02-13 | 南京立业电力变压器有限公司 | Static pressure constant voltage device and method for transformer |
| CN117553998B (en) * | 2024-01-11 | 2024-03-26 | 南京立业电力变压器有限公司 | Static pressure constant voltage device and method for transformer |
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