CN214040512U - Oil-immersed transformer lifting seat leakage monitoring device - Google Patents
Oil-immersed transformer lifting seat leakage monitoring device Download PDFInfo
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- CN214040512U CN214040512U CN202022767264.3U CN202022767264U CN214040512U CN 214040512 U CN214040512 U CN 214040512U CN 202022767264 U CN202022767264 U CN 202022767264U CN 214040512 U CN214040512 U CN 214040512U
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- oil storage
- storage cup
- pipe
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- transparent oil
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Abstract
The utility model relates to the technical field of transformers, and discloses a leakage monitoring device for a lifting seat of an oil-immersed transformer, which comprises a blow-off pipe, a blow-off valve, a transparent oil storage cup and a dispersion control system, wherein the blow-off pipe comprises a main blow-off pipe and a plurality of branch blow-off pipes; the main sewage discharge pipe vertically extends downwards and is connected with one end of a sewage discharge valve, and the other end of the sewage discharge valve is connected with the transparent oil storage cup; the top of the transparent oil storage cup is provided with a vent pipe, the bottom of the transparent oil storage cup is provided with a relief valve, and the outer side of the transparent oil storage cup is sequentially provided with a high liquid level alarm device and a middle liquid level alarm device from top to bottom; the high liquid level alarm device and the middle liquid level alarm device are respectively electrically connected with the decentralized control system. Through increasing a transparent oil storage cup behind the blowoff valve at the blowdown person in charge end, change the blowoff valve state of normal close into normally open, can observe the seepage condition in transparent oil storage cup very directly perceivedly, make things convenient for timely blowdown and the maintenance of carrying on of staff.
Description
Technical Field
The utility model relates to a transformer technical field, concretely relates to oil-immersed transformer rising seat leakage monitoring devices.
Background
As shown in fig. 1, the large oil-immersed transformer includes an oil tank 1, an oil conservator 2 located above the oil tank, and a plurality of lifting seats 3 located on a high-voltage side of the oil tank 1, the oil conservator 2 and the lifting seats 3 are respectively communicated with the oil tank 1, a flange 31 is respectively arranged on a single top of the oil conservator 2, transformer bushings 4 used as current output ends are respectively arranged on a low-voltage side of the oil tank 1 and the flange 31 of the lifting seats 3, the single transformer bushings 4 are respectively assembled on the low-voltage side of the oil tank 1 and the flange 31 through connecting flanges, a protective cover 5 is arranged on the flange 31 of the transformer bushings 4, the bottom of the protective cover 5 is assembled on the flange 31, the transformer bushings 4 arranged on the top of the lifting seats 3 are respectively located in the protective cover 5, because the transformer bushings 4 and the protective cover 5 are respectively connected with the flange 31 on the top of the lifting seats 3 through detachable flanges, there are insufficient The situation is.
In the actual production process, the potential safety hazard caused by water inflow of the protective cover 5 or oil leakage of the transformer casing 4 is prevented by periodical inspection and periodical pollution discharge of the protective cover 5, specifically, the bottom of the flange plate 31 is provided with the pollution discharge pipe 6, the pollution discharge pipe 6 is provided with the normally closed pollution discharge valve 7, the pollution discharge valve 7 is opened during the periodical inspection, and if oil or water is discharged, the water inflow of the protective cover 5 or the oil leakage of the transformer casing 4 is indicated, otherwise, the oil leakage is normal.
I know that the situation of the water accumulation of the lifting seat 3 and the oil leakage of the transformer bushing 4 is not found when regularly checking, and find that the oil level of a certain transformer oil conservator 2 rapidly drops when temporarily checking equipment for one time, namely, the oil accumulation in the protective cover 5 is serious when opening the blow-down valve 7 to blow down, and further check the oil leakage of the transformer bushing 4. Because the regular investigation is carried out, the conditions of water inlet of the lifting seat 3 and oil leakage of the transformer bushing 4 cannot be found in time under common conditions, and when the investigation is not carried out, a worker cannot observe and judge the leakage condition, so that major hidden dangers cannot be found in time possibly, and the safe and stable operation of equipment is influenced.
SUMMERY OF THE UTILITY MODEL
To the problem that the ponding of above-mentioned protection casing and transformer bushing oil leakage oil can not in time be discovered, the utility model provides an oil-immersed transformer risees a seepage monitoring devices through increasing a transparent oil storage cup at the back at the terminal blowoff valve of blow off pipe, makes things convenient for the staff to observe and judge the seepage condition to in time overhaul, guarantee equipment safety and stable operation.
In order to solve the technical problem, the utility model provides a leakage monitoring device for an oil-immersed transformer lifting seat, which comprises a blow-off pipe, a blow-off valve, a transparent oil storage cup and a dispersion control system,
the blow-off pipe comprises a main blow-off pipe and a plurality of branch blow-off pipes, one end of the single branch blow-off pipe is respectively connected with the bottom of one flange and communicated with the inside of the protective cover, and the other end of the single branch blow-off pipe is respectively gathered on the main blow-off pipe;
the main sewage discharge pipe vertically extends downwards and is connected with one end of a sewage discharge valve, and the other end of the sewage discharge valve is connected with the transparent oil storage cup;
the top of the transparent oil storage cup is provided with a vent pipe, the bottom of the transparent oil storage cup is provided with a relief valve, and the outer side of the transparent oil storage cup is sequentially provided with a high liquid level alarm device and a middle liquid level alarm device from top to bottom;
and the high liquid level alarm device and the medium liquid level alarm device are respectively electrically connected with the decentralized control system.
Further, the main sewage discharge pipe is made of a stainless steel pipe with the drift diameter of DN40, and the branch sewage discharge pipes are made of a stainless steel pipe with the drift diameter of DN 25.
Further, the main sewage drainage pipe vertically and downwards extends to a height of 800-1200 mm from the ground and is connected with one end of the sewage drainage valve.
Further, the vent pipe is vertically arranged at the top of the transparent oil storage cup, and the top of the vent pipe is provided with an arc bend with a downward opening.
Furthermore, the blowoff valve and the transparent oil storage cup are connected through a detachable flange.
Furthermore, the high liquid level alarm device and the medium liquid level alarm device both adopt non-contact liquid level sensors.
Compared with the prior art, the utility model has the advantages of:
through increasing a transparent oil storage cup at the back at the blowoff valve that the blowdown was responsible for terminal, change the blowoff valve state of normally closed into normally open, can observe the seepage condition in transparent oil storage cup very directly perceivedly, make things convenient for timely blowdown and the maintenance of carrying on of staff, and through the liquid level alarm device who is connected with current decentralized control system electricity that sets up on transparent oil storage cup, just calculate that the staff is not on-the-spot, also can real-time supervision transformer rise the seepage condition of seat, the effectual safety and the stable operation of influencing equipment because of not having timely seepage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Figure 1 is a schematic diagram of a prior art oil filled transformer,
figure 2 is a schematic structural view of the present invention,
figure 3 is a side view of figure 2,
figure 4 is a schematic view of the mechanism of the transparent oil cup 8,
the reference numbers are as follows:
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1 to 4, the utility model provides an oil-immersed transformer rises seat leakage monitoring devices, including blow off pipe 6, blowoff valve 7, transparent oil storage cup 8 and decentralized control system, wherein:
as shown in fig. 3, the sewage draining pipe 6 comprises a main sewage draining pipe 61 and a plurality of branch sewage draining pipes 62, the main sewage draining pipe 61 is preferably a stainless steel pipe with the bore diameter of DN40, the branch sewage draining pipes 62 are preferably a stainless steel pipe with the bore diameter of DN25, one end of each branch sewage draining pipe 62 is connected with the bottom of one flange 31 and communicated with the inside of the protective cover 5, the other end of each branch sewage draining pipe 62 is collected on the main sewage draining pipe 61, specifically, the bottom of each flange 31 is provided with a drain outlet, and the branch sewage draining pipes 62 are connected with the drain outlets;
certainly, in view of the sewage discharge efficiency, the main sewage discharge pipe 61 and the branch sewage discharge pipes 62 can also be stainless steel pipes with larger drift diameters, and in view of the cost, the stainless steel pipes can also be replaced by pretreated steel pipes, and the stainless steel pipes are selected according to the actual conditions of various plants;
the main sewage drainage pipe 61 extends vertically downwards and is connected with one end of the sewage drainage valve 7, the other end of the sewage drainage valve 7 is connected with the transparent oil storage cup 8, in order to facilitate manual operation of the sewage drainage valve 7, the height of the sewage drainage valve 7 cannot be too high, preferably, the main sewage drainage pipe 61 extends vertically downwards to a height of 800-1200 mm from the ground and is connected with one end of the sewage drainage valve 7, in order to facilitate maintenance and dirt cleaning of a pipeline, the main sewage drainage pipe 61 and the branch sewage drainage pipe 62 are required to be provided with a detachable joint according to the design specification of the pipeline, namely, the detachable joint is adopted for flange connection at a proper position;
the main blowdown pipe 61 extends vertically downwards to be connected with the blowdown valve 7, so that the blowdown valve 7 is vertically arranged, the transparent oil storage cup 8 connected with the blowdown valve 7 is also vertically arranged, the top of the transparent oil storage cup 8 is provided with a vent pipe 9, the bottom of the transparent oil storage cup 8 is provided with a discharge valve 10, the discharge valve 10 is in a normally closed state, the outer side of the transparent oil storage cup 8 is sequentially provided with a high liquid level alarm device 11 and a medium liquid level alarm device 12 from top to bottom, as shown in fig. 4, the vent pipe 9 is vertically arranged at the top of the transparent oil storage cup 8, in order to prevent rain and snow from entering the transparent oil storage cup 8 from the vent pipe 9 or prevent dust, floatage and the like from blocking the vent pipe 9, and the top of the vent pipe 9 is provided with an arc-shaped bend 91 with a downward opening;
the high liquid level alarm device 11 and the middle liquid level alarm device 12 both adopt non-contact liquid level sensors and are electrically connected with a Distributed Control System (DCS), the Distributed Control System (DCS) is a control system of an electric power system, belongs to the conventional prior art and is not described again,
the height of the high liquid level alarm device 11 and the height of the medium liquid level alarm device 12 are set according to actual conditions, specifically, liquid level scales are arranged on the transparent oil storage cup 8 in the vertical direction, the medium liquid level alarm device 12 is located in the middle of the liquid level scales, and when the liquid level of oil and water seeping in the transparent oil storage cup 8 reaches the middle liquid level scales, the medium liquid level alarm device 12 sends a signal to a Distributed Control System (DCS) to remind a worker that sewage can be drained and the leakage condition should be checked; the high liquid level alarm device 11 is positioned at the position of the highest liquid level scale, when the oil leakage and the liquid level of water in the transparent oil storage cup 8 reach the position of the highest liquid level scale, the high liquid level alarm device 11 sends a signal to a Distributed Control System (DCS), and the Distributed Control System (DCS) sends an alarm to remind a worker that pollution discharge should be carried out immediately and leakage points should be checked;
it should be noted that, in general, the blowoff valve 7 is in a normally open state, and if the protection cover 5 is in water inlet or the transformer bushing 4 on the lifting seat 3 leaks, then water and leaked oil can be collected to the main blowoff pipe 61 through the drain branch pipe 62 by the drain outlet at the bottom of the flange 31, and then discharged into the transparent oil storage cup 8 through the blowoff valve 7, even if the conventional investigation time is not, the worker can judge the sealing condition of the protection cover 5 and the transformer bushing 4 on the lifting seat 3 according to the leakage amount in the transparent oil storage cup 8, specifically:
if only water exists in the transparent oil storage cup 8, the protective cover 5 is not sealed well, and it needs to be explained that the protective cover 5 enters water when snow falls to cover the whole protective cover and the snow is melted;
if only oil exists in the transparent oil storage cup 8, the leakage of the transformer bushing 4 is indicated, and the leakage point should be checked and overhauled in time;
if oil-water stratification occurs in the transparent oil storage cup 8, the two conditions exist, and timely examination and maintenance are required;
it should be noted that when the leakage amount is small, the blowdown can be performed directly through the blowdown valve 10 at the bottom of the transparent oil storage cup 8, and in consideration of the serious leakage condition, the blowdown can cause certain damage to the transparent oil storage cup 8 through the blowdown of the transparent oil storage cup 8, the blowdown valve 7 needs to be closed first, and then the blowdown valve 7 is opened to blowdown after the transparent oil storage cup 8 is detached; in order to facilitate the maintenance and the disassembly of the transparent oil storage cup 8, the blowoff valve 7 is connected with the transparent oil storage cup 8 through a detachable flange.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. The leakage monitoring device for the lifting seat of the oil-immersed transformer comprises a blow-off pipe (6) and a blow-off valve (7), and is characterized by further comprising a transparent oil storage cup (8) and a dispersion control system;
the sewage discharge pipe (6) comprises a main sewage discharge pipe (61) and a plurality of branch sewage discharge pipes (62), one end of the single branch sewage discharge pipe (62) is respectively connected with the bottom of one flange (31) and communicated with the inside of the protective cover (5), and the other end of the single branch sewage discharge pipe is respectively collected on the main sewage discharge pipe (61);
the main sewage discharge pipe (61) vertically extends downwards and is connected with one end of a sewage discharge valve (7), and the other end of the sewage discharge valve (7) is connected with a transparent oil storage cup (8);
the top of the transparent oil storage cup (8) is provided with a vent pipe (9), the bottom of the transparent oil storage cup is provided with a discharge valve (10), and the outer side of the transparent oil storage cup is sequentially provided with a high liquid level alarm device (11) and a middle liquid level alarm device (12) from top to bottom;
the high liquid level alarm device (11) and the medium liquid level alarm device (12) are respectively electrically connected with the decentralized control system.
2. The oil-filled transformer lifting seat leakage monitoring device according to claim 1, characterized in that: the main sewage discharge pipe (61) is a stainless steel pipe with the drift diameter of DN40, and the branch sewage discharge pipe (62) is a stainless steel pipe with the drift diameter of DN 25.
3. The oil-filled transformer lifting seat leakage monitoring device according to claim 1, characterized in that: the main sewage drainage pipe (61) vertically and downwards extends to a height of 800-1200 mm from the ground and is connected with one end of the sewage drainage valve (7).
4. The oil-filled transformer lifting seat leakage monitoring device according to claim 1, characterized in that: the vent pipe (9) is vertically arranged at the top of the transparent oil storage cup (8), and the top of the vent pipe is provided with an arc-shaped bend (91) with a downward opening.
5. The oil-filled transformer lifting seat leakage monitoring device according to claim 1, characterized in that: the blowoff valve (7) is detachably connected with the transparent oil storage cup (8) through a flange.
6. The oil-filled transformer lifting seat leakage monitoring device according to claim 1, characterized in that: the high liquid level alarm device (11) and the medium liquid level alarm device (12) both adopt non-contact liquid level sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022767264.3U CN214040512U (en) | 2020-11-26 | 2020-11-26 | Oil-immersed transformer lifting seat leakage monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022767264.3U CN214040512U (en) | 2020-11-26 | 2020-11-26 | Oil-immersed transformer lifting seat leakage monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214040512U true CN214040512U (en) | 2021-08-24 |
Family
ID=77362436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022767264.3U Expired - Fee Related CN214040512U (en) | 2020-11-26 | 2020-11-26 | Oil-immersed transformer lifting seat leakage monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214040512U (en) |
-
2020
- 2020-11-26 CN CN202022767264.3U patent/CN214040512U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 Termination date: 20211126 |