CN209910899U - Liquid immersion type leakage monitoring device for power equipment - Google Patents
Liquid immersion type leakage monitoring device for power equipment Download PDFInfo
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- CN209910899U CN209910899U CN201920730561.5U CN201920730561U CN209910899U CN 209910899 U CN209910899 U CN 209910899U CN 201920730561 U CN201920730561 U CN 201920730561U CN 209910899 U CN209910899 U CN 209910899U
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Abstract
A liquid immersion type leakage monitoring device for power equipment relates to the technical field of equipment monitoring. This monitoring devices has increased the holding vessel on flange, can collect the insulating oil (or the air) of leaking to installation liquid sensor or gas sensor in the holding vessel, when insulating oil (or air) accumulated a quantitative value, will send the signal, remind the staff to notice, have the advantage that reduces artifical tour, use manpower sparingly material resources, equipment are simple reliable, convenient to use.
Description
Technical Field
The utility model relates to an equipment monitoring technology field, in particular to liquid soaks formula power equipment leakage monitoring device.
Background
Due to structural requirements, cavities exist in equipment shells (or called oil tanks and tank bodies) and pipelines of liquid immersion type power equipment, and at the positions of pipelines and the like in compensation oil storage cabinets at transformers, mutual inductors and the like and fire-fighting oil discharge systems, once tiny flaws occur in sealed welding lines, isolation valves and oil storage bins, insulating oil leakage (or air invasion) can be caused, and equipment faults are finally caused.
Disclosure of Invention
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a liquid soaks formula power equipment leakage monitoring device.
The utility model adopts the technical proposal that: the utility model provides a liquid soaks formula power equipment leakage monitoring device, its technical essential is, including last flange, the collection tank that has the inspection window, sensor protection casing, flange, blow-down discharge valve, take terminal box, stopper and the sensor group of bleeder vent, the collection tank fix at last flange under and between the flange, connect the sensor protection casing of umbelliform at collection tank inner wall welding, connect sensor group under on flange, the detection end of sensor group stretches into in the collection tank and lies in sensor protection casing below, flange and external controller are connected under passing to the output of sensor group, are equipped with the blow-down discharge valve at the collection tank lower extreme, are connected through the stopper between flange and the terminal box down, the stopper is spacing to the distance between flange and the terminal box.
In the above scheme, the sensor group comprises more than two insulating oil or air sensors for improving the accuracy and reliability of monitoring.
In the scheme, a power supply conversion circuit and a voltage stabilizing relay for supplying power to the sensor group are arranged in the junction box, the power supply conversion circuit is connected with the voltage stabilizing relay, and the voltage stabilizing relay is connected with the sensor group.
The utility model has the advantages that: this liquid immersion power equipment leakage monitoring device has increased the holding vessel on flange, can collect the insulating oil (or the air) of leaking to installation insulating oil (or air) sensor in the holding vessel, when insulating oil (or air) accumulation to a quantitative value, will send the signal, remind the staff to notice, have reduce the manual work and patrol, use manpower sparingly material resources, equipment advantage simple and reliable, convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a liquid immersion type leakage monitoring device for power equipment according to an embodiment of the present invention;
the numbers in the figure illustrate the following: the device comprises an upper connecting flange 1, a collecting tank 2, a viewing window 21, a sensor protective cover 3, a lower connecting flange 4, a discharge valve 5, a junction box 6, vent holes 61, a stopper 7 and a sensor group 8.
Detailed Description
The above objects, features and advantages of the present invention will become more apparent and the present invention will be explained in more detail with reference to the accompanying drawings 1 and the detailed description thereof.
The sensor group 8 in this embodiment includes two or more insulated oil or air sensors. The following describes a leakage monitoring device for liquid-immersed power equipment, with respect to different sensor types.
Example 1:
in the liquid immersion type power equipment leakage monitoring device adopted in the embodiment, when the leakage of the insulating oil is monitored, the upper connecting flange 1 is required to be installed below the monitored body, and the insulating oil leaked by the power equipment is ensured to directly enter the upper connecting flange 1.
The monitoring device comprises an upper connecting flange 1, a collecting tank 2 with a viewing window 21, a sensor protective cover 3, a lower connecting flange 4, a discharge valve 5, a junction box 6 with air holes 61, a limiter 7 and an insulating oil sensor. The collecting tank 2 of the embodiment is fixed between an upper connecting flange 1 and a lower connecting flange 4, an umbrella-shaped sensor protective cover 3 is welded on the inner wall of the collecting tank 2, and an insulating oil sensor is connected on the lower connecting flange 4, and the model is LJC18A 3-5-A/BX.
The detection end of the insulating oil sensor extends into the collecting tank 2, the output end of the insulating oil sensor penetrates through the lower connecting flange 4 to be connected with an external controller, and the detected leakage data can be transmitted to the external controller by the insulating oil sensor for further analysis and use.
In the embodiment, the lower end of the collecting tank 2 is provided with the discharge valve 5, so that the insulating oil leaked by the power system can be discharged, and the monitoring device is restored to the initial state so as to be used for monitoring next time. Lower flange 4 is connected through stopper 7 with between the terminal box 6, and stopper 7 is spacing down the distance between flange 4 and the terminal box, and protection internal connection, power switching circuit, steady voltage relay etc. are not damaged. .
In the present embodiment, the side wall of the collection tank 2 is provided with a viewing window 21 for observing the conditions inside the tank body at a short distance.
In this embodiment, the bottom of the junction box 6 is provided with a vent 61 for adjusting the pressure and temperature in the junction box 6, and if water enters the junction box 8, the water can be discharged through the vent 61.
In the embodiment, a power supply conversion circuit ws-85-250 and a voltage stabilizing relay 4H-S-DC12V for supplying power to the insulating oil sensor are arranged in the junction box 6, the power supply conversion circuit is connected with the voltage stabilizing relay, and the voltage stabilizing relay is connected with the insulating oil sensor to provide a voltage stabilizing power supply for the insulating oil sensor.
The liquid immersion type power equipment leakage monitoring device in the embodiment has the following working process:
when the insulating oil leakage occurs in the power equipment, the insulating oil enters the collecting tank through the upper connecting flange, and when the liquid quantity value reaches the set threshold value of the insulating oil sensor (which can be set by a user according to specific conditions), the insulating oil sensor transmits an alarm and a measured value to an external controller or a common PC (personal computer), so that basic data are provided for subsequent research.
Example 2:
the difference between this embodiment and embodiment 1 is that the liquid immersion type power equipment leakage monitoring device used in this embodiment should be installed above the monitored object, so that after the monitored object leaks, air can directly rise to enter the collecting tank 2 through the upper connecting flange.
The present embodiment employs an air sensor, model number ES6010-2A 1. The detection end of the air sensor extends into the collecting tank 2 to monitor the leaked air entering the collecting tank 2. Because the air is when not being full of collecting vessel 2 completely, the air bubble that gets into in the collecting vessel surges, causes the inaccuracy of monitoring precision, shelters from through sensor protection casing 3, can make the air of getting into not direct and air sensor contact can improve the precision to gas measurement effectively.
The lower end of the collecting tank 2 is provided with a discharge valve 5 which can discharge air leaked by the power system, so that the monitoring device is restored to the initial state for the next monitoring use.
The output end of the air sensor penetrates through the lower connecting flange 4 to be connected with an external controller or a PC (personal computer), so that measured value data can be conveniently transmitted to the outside for further analysis and use.
In this embodiment, the liquid immersion type power equipment leakage monitoring device has the following working process:
when power device appearing gaseous the revealing, when the gaseous entering collecting vessel that leads to revealing, gaseous continuous through last flange gets into in the collecting vessel, when the gas quantity value reached gas sensor's settlement threshold, gas sensor will report to the police.
Example 3:
the difference between this embodiment and embodiment 1 is that the liquid immersion type power equipment leakage monitoring device in this embodiment is installed on the sidewall of the vertical pipe (or oil tank) of the monitored body in a horizontal installation manner. So that after the monitored body is revealed, the insulating oil can directly rise through the flange into the collection tank 2.
The present embodiment employs an insulated oil sensor. The detection end of the insulating oil sensor stretches into the collecting tank 2, and leakage insulating oil entering the collecting tank 2 is monitored.
The lower end of the collecting tank 2 is provided with a discharge valve 5 which can discharge the insulating oil leaked by the power system, so that the monitoring device is restored to the initial state for the next monitoring use.
The output end of the insulating oil sensor penetrates through the lower connecting flange 4 to be connected with an external controller or a PC (personal computer), so that measured value data can be conveniently transmitted to the outside for further analysis and use.
In this embodiment, the liquid immersion type power equipment leakage monitoring device has the following working process:
when the insulating oil leakage occurs in the power device, the leaked insulating oil enters the collecting tank, and when the insulating oil quantity value reaches the set threshold value of the insulating oil sensor, the insulating oil sensor gives an alarm.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a liquid soaks formula power equipment leakage monitoring device, its characterized in that includes flange, has the collection tank, sensor protection casing, flange, blow-down valve, the terminal box of taking the bleeder vent, stopper and the sensor group of observing the window, the collection tank fix at last flange under and between the flange, connect the sensor protection casing of umbelliform at collection tank inner wall welding, connect the sensor group on flange down, the detection end of sensor group stretches into in the collection tank and lies in sensor protection casing below, the output of sensor group passes flange down and is connected with external controller, is equipped with the blow-down valve at the collection tank lower extreme, is connected through the stopper between flange and the terminal box down, the stopper is spacing to the distance between flange and the terminal box.
2. The apparatus according to claim 1, wherein the sensor group comprises a gas sensor and a liquid sensor.
3. The apparatus according to claim 1, wherein a power conversion circuit and a voltage stabilizing relay are provided in the junction box for supplying power to the sensor group, the power conversion circuit is connected to the voltage stabilizing relay, and the voltage stabilizing relay is connected to the sensor group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920730561.5U CN209910899U (en) | 2019-05-21 | 2019-05-21 | Liquid immersion type leakage monitoring device for power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920730561.5U CN209910899U (en) | 2019-05-21 | 2019-05-21 | Liquid immersion type leakage monitoring device for power equipment |
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| Publication Number | Publication Date |
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| CN209910899U true CN209910899U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920730561.5U Active CN209910899U (en) | 2019-05-21 | 2019-05-21 | Liquid immersion type leakage monitoring device for power equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776757A (en) * | 2021-09-17 | 2021-12-10 | 大连船舶重工集团有限公司 | Leakage monitoring and processing system of B-type independent storage cabin |
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2019
- 2019-05-21 CN CN201920730561.5U patent/CN209910899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776757A (en) * | 2021-09-17 | 2021-12-10 | 大连船舶重工集团有限公司 | Leakage monitoring and processing system of B-type independent storage cabin |
| CN113776757B (en) * | 2021-09-17 | 2023-09-01 | 大连船舶重工集团有限公司 | Leakage monitoring processing system of B-type independent storage cabin |
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