CN216119856U - Capsule type transformer stores up oil tank - Google Patents
Capsule type transformer stores up oil tank Download PDFInfo
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- CN216119856U CN216119856U CN202122934715.2U CN202122934715U CN216119856U CN 216119856 U CN216119856 U CN 216119856U CN 202122934715 U CN202122934715 U CN 202122934715U CN 216119856 U CN216119856 U CN 216119856U
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Abstract
The utility model discloses a capsule type transformer oil conservator which comprises an oil conservator body, a liquid level meter and a control system, wherein a first pipeline is arranged on the oil conservator body, and the bottom of the first pipeline is communicated with the oil conservator body; the first pipeline is a transparent pipeline with an upward opening, and the length of the first pipeline in the vertical direction is greater than the height of the oil conservator body; a probe of the liquid level meter is arranged deep into the bottom of the first pipeline; the control system is used for receiving the signals transmitted by the liquid level meter and displaying the transmitted signals; the oil storage cabinet has the advantages that the occurrence of false oil level events in the oil storage cabinet is reduced, and the manpower and material resources of operators are saved; can effectively judge whether the inside of the oil conservator has the problems of capsule damage, air inlet inside the oil conservator, blockage of a respirator and the like.
Description
Technical Field
The utility model relates to the technical field of oil conservators, in particular to a capsule type transformer oil conservator.
Background
The transformer conservator is an important part of the transformer, and when the volume of oil inside the transformer is changed due to the temperature change of the transformer, the conservator can contain or supplement the oil for the transformer body, so that the oil in the transformer body is ensured to be in normal pressure and in a full state. The oil level of the oil conservator is displayed through an oil level gauge, and meanwhile, the oil conservator is verified according to an oil temperature and oil level curve shown by a manufacturer. When the oil pillow oil level deviates from the oil temperature and oil level curve in reality, maintenance personnel are required to arrive at the site to perform oil supplementing and discharging treatment on the transformer.
In recent years, however, the power grid size of power supply companies in new areas of the world has been increasing. The abnormal problem quantity of capsule type conservator oil level sharply increases, often can appear the condition such as oil level gaugember floater damage, oil level gaugember bite, capsule damage, the inside air admission of conservator, respirator jam, and cause the appearance of false oil level, and the actual oil level is inconsistent with oil level gaugember demonstration oil level promptly, often can cause this problem of handling, in the preparation work, has caused a large amount of manpower and materials extravagant to the pressure of high-quality service has been increaseed.
In view of this, the present application is specifically made.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the occurrence of false oil level abnormal events in an oil conservator is increased, and aims to provide a capsule type transformer oil conservator which reduces the occurrence of false oil level events in an oil conservator body.
The utility model is realized by the following technical scheme:
a capsule type transformer oil conservator comprises an oil conservator body, a liquid level meter and a control system,
a first pipeline is arranged on the oil conservator body, and the bottom of the first pipeline is communicated with the oil conservator body; the first pipeline is a transparent pipeline with an upward opening, and the length of the first pipeline in the vertical direction is greater than the height of the oil conservator body; a probe of the liquid level meter is arranged deep into the bottom of the first pipeline;
the control system is used for receiving the signals transmitted by the liquid level meter and displaying the transmitted signals.
The utility model provides a capsule type transformer oil conservator, which is characterized in that a liquid level meter is adopted to measure an oil level page in an oil conservator body in real time and is displayed on an oscilloscope in a waveform mode, and the occurrence of false oil level events in the oil conservator can be reduced directly through waveform changes.
Preferably, the oil conservator body comprises a first pressure sensor, a second pressure sensor and a third pressure sensor, the first pressure sensor and the second pressure sensor are both arranged in an oil pipeline, and the oil pipeline is connected with a butterfly valve of the oil conservator body; the third pressure sensor is arranged in a second pipeline, and the second pipeline connects the air bag in the oil conservator body with the respirator.
Preferably, the control system comprises a display circuit and a control circuit;
the display circuit comprises a first oscilloscope, and the first oscilloscope is used for displaying signals transmitted by the liquid level meter;
the control circuit comprises a first comparison unit, a second comparison unit, a first comparator, a multiplier and a second oscilloscope, signals of the first pressure sensor and the second pressure sensor are input into the first comparison unit, and the output end of the first comparison unit is connected with the input end of the multiplier; the signal of the first pressure sensor and the signal of the third pressure sensor are input into the second comparison unit, and the output end of the second comparison unit is connected with the negative pole of the first comparator through a resistor R2; the output end of the multiplier is connected with the negative electrode of the first comparator through a resistor R3, the output end of the first comparator is respectively connected with the input unit of the multiplier and the input end of the second oscilloscope, and the positive electrode of the first comparator is connected with the ground through a resistor R.
Preferably, the first comparing unit includes a second comparator, the first pressure sensor output signal is connected with the negative pole of the second comparator through a resistor R1, the second pressure sensor output signal is connected with the positive pole of the second comparator through a resistor R4, and the positive pole of the second comparator is also connected to the ground through a resistor R6;
the output end of the second comparator is connected with the input end of the multiplier, and the output end of the second comparator is connected with the negative pole of the second comparator through a resistor R5.
Preferably, the second comparing unit is provided with the same circuit as the first comparing unit, and the signal output by the third pressure sensor and the signal output by the first pressure sensor are input into the second comparing unit.
Preferably, the oil conservator body further comprises a fixing clamp, and the fixing clamp is arranged on the side wall of the oil conservator body and used for fixing the liquid level meter.
Preferably, the bottom of the side wall of the oil conservator body is provided with a first outlet, and the first pipeline is communicated with the oil conservator body through the first outlet.
Preferably, the first pressure sensor, the second pressure sensor and the third pressure sensor are all diffused silicon pressure sensors.
Preferably, the first pipe is a glass pipe which is arranged transparently.
Preferably, the gauge is a drop-in gauge.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. according to the capsule-type transformer oil conservator provided by the embodiment of the utility model, the first pipeline is utilized, and the mode of the liquid level meter is adopted to detect the oil level page, so that the occurrence of 'false oil level' events in the oil conservator is reduced, and the manpower and material resources of operators are saved;
2. the capsule type transformer oil conservator provided by the embodiment of the utility model is provided with the independent pressure sensor for detecting the oil pressure in the oil conservator and the air pressure in the capsule, and can effectively judge whether the capsule is damaged, the air enters the oil conservator and the respirator is blocked in the oil conservator.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of an oil conservator
FIG. 2 is a schematic diagram of a display circuit
FIG. 3 is a schematic diagram of a control circuit
Reference numerals:
1. an air bag; 2. a second conduit; 3. a third pressure sensor; 4. a respirator; 5. a butterfly valve; 6. a first pressure sensor; 7. a second pressure sensor; 8. an oil delivery pipe; 9. fixing the fixture; 10. a liquid level meter; 11. a first conduit; 12. a first outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the utility model. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.
The embodiment discloses a capsule type transformer oil conservator, which is shown in fig. 1-3 and comprises an oil conservator body, a liquid level meter 10 and a control system, wherein in the embodiment, the adopted oil conservator body is a capsule type oil conservator in the prior art, a first pipeline 11 is arranged on the oil conservator body, and the bottom of the first pipeline 11 is communicated with the oil surface of the oil conservator body; the first pipeline 11 is a transparent pipeline with an upward opening, and the length of the first pipeline 11 in the vertical direction is greater than the height of the oil conservator body; the probe of the liquid level meter 10 is arranged deep into the bottom of the first pipeline 11; the bottom of the side wall of the oil conservator body is provided with a first outlet, and the first pipeline 11 is communicated with the oil conservator body through the first outlet.
In this embodiment, what adopt is that set up first pipeline 11 at conservator body lateral wall, the first export that sets up on the lateral wall is located the lateral wall bottom, and is covered by the oil level page, first pipeline 11 is the ascending pipeline that sets up of opening, and the length of first pipeline 11 is higher than the highest oil level page in the conservator body, can guarantee that the oil level page in the conservator shows in first pipeline 11, and the first pipeline 11 that sets up is transparent, can monitor the condition of the internal oil level page of conservator in real time. First pipeline 11 communicates with the storage oil tank body through first export, and based on the fluid pressure principle, the oil level liquid level in first pipeline 11 has the internal oil level page of storage oil tank to be the same, consequently, can measure the oil level liquid level in first pipeline 11 through level gauge 10 thereby calculates the internal oil level height of storage oil tank.
In this embodiment, the oil conservator body further comprises a fixing clamp 9, the fixing clamp 9 is arranged on the side wall of the oil conservator body and used for fixing the liquid level meter 10, and the liquid level meter 10 is required to monitor an oil level page for a long time regardless of which type of liquid level meter 10 is adopted, so that the clamp for fixing the liquid level meter 10 is arranged on the side wall, and the liquid level meter 10 can be prevented from being led out of the first pipeline 11; the contact guarantees that it is the same with external atmospheric pressure, and the structure of the fixed fixture 9 that sets up is unlimited, can carry out fixed connection for the mode of clip, perhaps buckle.
In this embodiment, the first pipeline 11 adopts a transparent glass pipeline, one of the glass pipelines is adopted because the glass material is exactly an insulating material, and the glass material can be set to be transparent, slightly big, and the glass of adoption can have corrosion resistance under the soaking of long-time oil, and installation time is short, and the leakproofness is good
In this embodiment, the liquid level meter 10 is a drop-in type liquid level meter 10, but is not limited to the liquid level meter 10, and a radio frequency admittance type liquid level meter 10 may also be used, the liquid level meters 10 used all have good corrosion resistance, the accuracy of the measured oil level page is high, the electromagnetic compatibility is good, the electromagnetic compatibility of the capacitance type liquid level meter 10 should be good, the measurement result should not be affected by the electric field variation of the transformer, and the measurement accuracy difference rate should not be greater than 0.1% under the condition of different electromagnetic fields.
The control system is used for receiving the signal transmitted by the liquid level meter 10 and displaying the transmitted signal;
in this embodiment, the oil conservator body comprises a first pressure sensor 6, a second pressure sensor 7 and a third pressure sensor 3, the first pressure sensor 6 and the second pressure sensor 7 are both arranged in an oil pipeline 8, and the oil pipeline 8 is connected with a butterfly valve 5 of the oil conservator body; the third pressure sensor 3 is arranged in a second pipe 2, and the second pipe 2 connects the air bag 1 in the oil conservator body with a breather 4.
The relationship between the pressure indication of the third pressure sensor 3 and the atmospheric pressure can judge whether the breather 4 in the oil conservator body or the air bag 1 outlet is blocked or not.
The control system comprises a display circuit and a control circuit; the display circuit comprises a first oscilloscope, and the first oscilloscope is used for displaying signals transmitted by the liquid level meter 10; in the embodiment, after the indication number of the liquid level meter 10 is displayed in a waveform mode, and the indication number of the pressure sensor is displayed in a waveform mode, whether the oil level of the oil conservator body is abnormal or not can be obtained by directly observing the change conditions of the two waveforms.
The control circuit comprises a first comparison unit, a second comparison unit, a first comparator, a multiplier and a second oscilloscope, signals of the first pressure sensor 6 and the second pressure sensor 7 are input into the first comparison unit, and the output end of the first comparison unit is connected with the input end of the multiplier; the signal of the first pressure sensor 6 and the signal of the third pressure sensor 3 are input into the second comparison unit, and the output end of the second comparison unit is connected with the negative pole of the first comparator through a resistor R2; the output end of the multiplier is connected with the negative electrode of the first comparator through a resistor R3, the output end of the first comparator is respectively connected with the input unit of the multiplier and the input end of the second oscilloscope, and the positive electrode of the first comparator is connected with the ground through a resistor R.
The first comparison unit comprises a second comparator, the output signal of the first pressure sensor 6 is connected with the cathode of the second comparator through a resistor R1, the output signal of the second pressure sensor 7 is connected with the anode of the second comparator through a resistor R4, and the anode of the second comparator is also connected with the ground through a resistor R6; the output end of the second comparator is connected with the input end of the multiplier, and the output end of the second comparator is connected with the negative pole of the second comparator through a resistor R5. The circuit of the second comparing unit is the same as that of the first comparing unit, and the signal output by the third pressure sensor 3 and the signal output by the first pressure sensor 6 are input to the second comparing unit.
In the control circuit and the display circuit, the first oscilloscope displays the liquid level of the liquid level meter 10, the second oscilloscope displays the waveform related to the pressure sensor, and the difference between the waveforms of the first oscilloscope and the second oscilloscope can be directly observed to know whether the liquid level monitored by the liquid level meter 10 is the abnormal liquid level or not.
In this embodiment, the first pressure sensor 6, the second pressure sensor 7 and the third pressure sensor 3 are all diffused silicon pressure sensors, and due to the adoption of the diffused silicon pressure sensors, normal operation of a main transformer is not affected, and the diffused silicon pressure sensors are high in corrosion resistance, good in measurement accuracy and strong in electromagnetic compatibility.
A capsule type transformer oil conservator that this embodiment adopted through set up level gauge 10 and a plurality of pressure sensor on the oil conservator body, directly demonstrates the mode that the registration turns into the wave form through display circuit and control circuit's mode, has improved the accuracy that detects the abnormal conditions in the oil conservator, has reduced false oil level incident appearance in the oil conservator collection.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A capsule type transformer oil conservator is characterized by comprising an oil conservator body, a liquid level meter (10) and a control system,
a first pipeline (11) is arranged on the oil conservator body, and the bottom of the first pipeline (11) is communicated with the oil conservator body; the first pipeline (11) is a transparent pipeline with an upward opening, and the length of the first pipeline (11) in the vertical direction is greater than the height of the oil conservator body; the probe of the liquid level meter (10) is arranged deep into the bottom of the first pipeline (11);
the control system is used for receiving the signals transmitted by the liquid level meter (10) and displaying the transmitted signals.
2. The capsule transformer conservator as claimed in claim 1, wherein the conservator body comprises a first pressure sensor (6), a second pressure sensor (7) and a third pressure sensor (3), the first pressure sensor (6) and the second pressure sensor (7) are arranged in an oil pipeline (8), the oil pipeline (8) is connected with a butterfly valve (5) of the conservator body; the third pressure sensor (3) is arranged in a second pipeline (2), and the second pipeline (2) connects an air bag (1) in the oil conservator body with a respirator (4).
3. The capsule transformer conservator as claimed in claim 2, wherein the control system comprises a display circuit and a control circuit;
the display circuit comprises a first oscilloscope, and the first oscilloscope is used for displaying signals transmitted by the liquid level meter (10);
the control circuit comprises a first comparison unit, a second comparison unit, a first comparator, a multiplier and a second oscilloscope, signals of the first pressure sensor (6) and the second pressure sensor (7) are input into the first comparison unit, and the output end of the first comparison unit is connected with the input end of the multiplier; the signal of the first pressure sensor (6) and the signal of the third pressure sensor (3) are input into the second comparison unit, and the output end of the second comparison unit is connected with the negative pole of the first comparator through a resistor R2; the output end of the multiplier is connected with the negative electrode of the first comparator through a resistor R3, the output end of the first comparator is respectively connected with the input unit of the multiplier and the input end of the second oscilloscope, and the positive electrode of the first comparator is connected with the ground through a resistor R.
4. A capsule transformer conservator as claimed in claim 3, wherein the first comparing unit comprises a second comparator, the output signal of the first pressure sensor (6) is connected with the negative pole of the second comparator through a resistor R1, the output signal of the second pressure sensor (7) is connected with the positive pole of the second comparator through a resistor R4, the positive pole of the second comparator is also connected with ground through a resistor R6;
the output end of the second comparator is connected with the input end of the multiplier, and the output end of the second comparator is connected with the negative pole of the second comparator through a resistor R5.
5. A capsule transformer conservator according to claim 4, characterized in that the circuit of the second comparing unit is the same as the circuit of the first comparing unit, and the signal output by the third pressure sensor (3) and the signal output by the first pressure sensor (6) are input into the second comparing unit.
6. The capsule transformer conservator as claimed in claim 1, wherein the conservator body further comprises fixing clamps (9), the fixing clamps (9) are disposed on the side wall of the conservator body for fixing the level gauge (10).
7. The capsule transformer conservator as claimed in claim 1, wherein a first outlet is provided at the bottom of the sidewall of the conservator body, and the first pipeline (11) is communicated with the conservator body through the first outlet.
8. A capsule transformer conservator according to claim 5, characterized in that the first pressure sensor (6), the second pressure sensor (7) and the third pressure sensor (3) are all diffused silicon pressure sensors.
9. The capsule transformer conservator as claimed in claim 1, wherein the first pipe (11) is a transparent glass pipe.
10. The capsule transformer conservator as claimed in claim 1, wherein the level gauge (10) is a drop-in level gauge (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122934715.2U CN216119856U (en) | 2021-11-26 | 2021-11-26 | Capsule type transformer stores up oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122934715.2U CN216119856U (en) | 2021-11-26 | 2021-11-26 | Capsule type transformer stores up oil tank |
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| Publication Number | Publication Date |
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| CN216119856U true CN216119856U (en) | 2022-03-22 |
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| CN202122934715.2U Active CN216119856U (en) | 2021-11-26 | 2021-11-26 | Capsule type transformer stores up oil tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115116705A (en) * | 2022-08-26 | 2022-09-27 | 国网山西省电力公司超高压变电分公司 | Transformer stores up oil tank state monitoring system |
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2021
- 2021-11-26 CN CN202122934715.2U patent/CN216119856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115116705A (en) * | 2022-08-26 | 2022-09-27 | 国网山西省电力公司超高压变电分公司 | Transformer stores up oil tank state monitoring system |
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