CN210385013U - Oil-water separation and discharge device of transformer - Google Patents

Abstract

The utility model relates to a power equipment maintains the field, provides a transformer oil-water separation discharging equipment. The device comprises a transformer oil pit and an oil-water separation chamber communicated with the transformer oil pit, wherein a first sensor for collecting the weight of oil and water and a second sensor for collecting the volume of the oil and water are arranged in the oil-water separation chamber, and the oil-water separation chamber is provided with a first pipeline for discharging oil or oil-water mixture and a second pipeline for discharging water; the first sensor and the second sensor are both connected with a controller, and the controller controls the first pipeline or the second pipeline to be opened according to the oil-water volume information collected by the second sensor and the oil-water weight information collected by the first sensor. The rainwater can not be stored in the transformer oil pit all the time, and simultaneously, the oil and the oil-water mixture can be treated when the transformer has an oil leakage accident.

Description

Oil-water separation and discharge device of transformer

Technical Field

The utility model belongs to power equipment maintains the field, in particular to transformer oil-water separation discharging equipment.

Background

The oil-water separation and discharge device of the transformer mainly aims at the problem of oil-water discharge of an oil immersed transformer serving as power core equipment in operation. At present, most of transformers in China are installed outdoors and outdoors, and a transformer oil pit is located at the bottom of a transformer body and also belongs to outdoor arrangement. The transformer oil pit is mainly used for containing transformer oil and discharging the transformer oil to a transformer accident oil collecting well through an oil conveying pipeline for storage when an accident occurs to a transformer, but inevitably contains rainwater when raining and finally collects the rainwater into the transformer accident oil collecting well, and the most frequent condition in operation is that the accident oil collecting well is full of the rainwater. Rainwater in the transformer accident oil collecting well needs to be discharged and treated subsequently, but a large part of rainwater can be mixed with transformer oil, and then workers need to perform separation and discharge again.

Therefore, the research on the transformer oil-water separation and discharge device capable of automatically separating oil from water in the transformer oil pit and discharging accumulated water in time has great significance for safe operation of a transformer substation, reduction of operation and maintenance cost and environmental protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer oil-water separation discharging equipment guarantees timely profit in the judgement transformer oil hole and separates the discharge in time with it.

In order to achieve the purpose, the utility model adopts the following technical scheme: the transformer oil-water separation discharging device comprises a transformer oil pit and an oil-water separation chamber communicated with the transformer oil pit, wherein a first sensor for collecting the weight of oil-water and a second sensor for collecting the volume of the oil-water are arranged in the oil-water separation chamber, and the oil-water separation chamber is provided with a first pipeline for discharging oil or oil-water mixture and a second pipeline for discharging water; the first sensor and the second sensor are both connected with a controller, and the controller controls the first pipeline or the second pipeline to be opened according to the oil-water volume information collected by the second sensor and the oil-water weight information collected by the first sensor.

Optionally, an oil-water primary separation chamber is arranged between the transformer oil pit and the oil-water separation chamber, the oil-water primary separation chamber includes a high water level region communicated with the transformer oil pit and a low water level region communicated with the oil-water separation chamber, a first partition plate extends downwards from the upper part of the high water level region, a second partition plate extends upwards from the lower part of the low water level region, and the lower end of the first partition plate is lower than the upper end of the second partition plate; and a liquid level relay connected with the controller is arranged at the upper part of the high water level area, and the height of the liquid level relay is greater than the highest water level line of the low water level area.

Optionally, the first partition plate includes a vertical plate extending downward from the upper portion of the high water level area, and an inclined plate extends obliquely downward from the lower end of the vertical plate to the upper end of the second partition plate.

Optionally, a filter chamber is arranged between the transformer oil pit and the oil-water primary separation chamber, a filter screen is arranged in the filter chamber, and the filter screen divides the filter chamber into an impurity region communicated with the transformer oil pit and a clean region communicated with the oil-water primary separation chamber.

Optionally, a container is arranged in the oil-water separation chamber, and the first sensor is a weighing device arranged below the container.

Optionally, a gas supporting rod is arranged below the container, and the supporting force provided by the gas supporting rod is equal to the mass of the container.

Optionally, a corrugated section is arranged on the periphery of the upper end of the container, the upper end of the side wall of the low water level area extends to the oil-water separation chamber, and the upper end of the corrugated section is connected with the upper end of the side wall of the low water level area.

Optionally, the second sensor is a liquid level sensor, and the liquid level sensor is arranged on the inner side wall of the container.

Optionally, the first pipeline with the inlet port of second pipeline with the bottom of container is connected through two drain valves, the drain valve includes the drainage base of being connected with the inlet port, the border of drainage base passes through the footpath strip of interval arrangement and is connected with the valve body, the inside of valve body is provided with and constitutes sealed the pad of sealed complex with the drainage base, be provided with the pull rod on the sealed pad, the controller is connected with drive arrangement, the drive arrangement drive the pull rod is along the inside displacement from top to bottom of valve body.

Optionally, the drain base of the drain valve connected to the first pipe is further connected to an overflow pipe.

Compared with the prior art, this application is different according to the density of water and oil, according to volume information and weight information controller can be accurate judge out in the oil-water separation chamber be oil or water or oil-water mixture, if when being water then steerable second pipeline is opened and is all discharged its to natural environment in, if oil or oil-water mixture then steerable first pipeline is opened and is discharged it to accident oil storage well, wait for subsequent processing, so will ensure that the transformer oil pit can not store the rainwater always, also can handle oil and oil-water mixture when the transformer takes place the oil leak accident simultaneously.

Drawings

FIG. 1 is a schematic layout of the present invention;

fig. 2 is a schematic view of the structure of the drain valve.

Reference numerals:

1. a transformer oil pit; 2. an oil-water separation chamber; 21. a first conduit; 22. a second conduit; 23. a container; 24. a gas support rod; 25. a corrugated section; 3. a first sensor; 4. a second sensor; 5. a controller; 6. a drain valve; 61. a drainage base; 62. a valve body; 63. a gasket; 64. a pull rod; 65. a drive device; 66. an overflow pipe; 7. an oil-water primary separation chamber; 71. a high water level region; 72. a low water level region; 73. a first separator; 731. a vertical plate; 732. a sloping plate; 74. a second separator; 75. a liquid level relay; 8. a filtering chamber; 81. filtering with a screen; 82. an impurity region; 83. a clean zone.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are some, but not all embodiments of the invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a transformer oil-water separation discharging device, which is provided with a second sensor 4 for determining oil-water volume information in an oil-water separation chamber 2, a first sensor 3 for determining oil-water weight information in the oil-water separation chamber 2, and water and oil having different densities, when reaching a set threshold of the second sensor 4, the controller 5 can accurately determine whether oil or water or oil-water mixture is in the oil-water separation chamber 2 according to the volume information and the weight information, if water, the second pipeline 22 can be controlled to open to discharge all the oil or water or oil-water mixture to the natural environment, and if oil or oil-water mixture is in the oil-water separation chamber, the first pipeline 21 can be controlled to open to discharge the oil to an accident oil storage well, and to wait for subsequent processing; certainly, if the volume of the oil and water in the oil-water separation chamber 2 does not reach the set threshold value all the time, the oil and water in the transformer oil pit 1 are proved to be emptied at the moment, and after a period of time, the controller 5 judges whether the residual liquid is oil or water or an oil-water mixture and then thoroughly discharges the residual liquid.

The first sensor 3 can adopt a common weighing sensor in the prior art, the weighing sensor detects the weight change of the oil-water separation chamber 2 so as to judge the oil-water weight information, the first sensor 3 can also be a pressure-sensitive sensor arranged at the bottom of the inner side of the oil-water separation chamber 2, the oil-water weight information is detected through the pressure change, and a person skilled in the art can also adopt other means to detect the oil-water weight information in the oil-water separation chamber 2; the second sensor 4 can adopt a liquid level sensor, the type of which can adopt a T55 capacitance type intelligent liquid level meter, or a flowmeter is arranged between the transformer oil pit 1 and the oil-water separation chamber 2 for detecting the oil-water volume information in the oil-water separation chamber 2, and certainly, the technical personnel in the field can also adopt other means to detect the oil-water volume information in the oil-water separation chamber 2.

The first pipeline 21 is communicated with an accident oil storage well for oil drainage or oil-water mixture, the second pipeline 22 is communicated with the natural environment and only used for water drainage, when the oil-water volume of the oil-water separation chamber 2 is V when a set threshold is reached, the first pipeline 21 or the second pipeline 22 is opened, the pipeline is opened to drain the oil-water with the volume of V, and the pipeline can be closed, but when only one oil-water separation chamber 2 is used, if the oil-water separation chamber reaches the set threshold in the drainage process, the transformer oil pit 1 can continue to enter the oil-water separation chamber 2 during the drainage period, the oil at the moment can be discharged by the second pipeline 22 together with water, in order to avoid the situation, two oil-water separation chambers 2 can be arranged, when one of the oil-water separation chambers reaches the set threshold, the controller 5 judges to drain the oil or drain the oil-water compound, and the transformer oil pit 1 drains the oil-, so that the former oil-water separation chamber 2 has no possibility of entering oil later in the draining process.

Of course, if the oil-water mixture exists in the oil-water separation chamber 2, the controller 5 can also accurately judge the liquid level boundary line of the oil and the water, so that part of water is firstly discharged from the bottom of the oil-water separation chamber 2, the remaining water-lean mixture is then discharged to the emergency well, but if it is a mixture, even if the drainage is performed first, there is a possibility that a small amount of oil is mixed in the drainage, and this aspect can be implemented, there is a certain risk, however, that it is not a preferred solution, and that the accident reservoir is generally of sufficient capacity, it can hold oil-water mixture as far as possible, guarantees to let oil have an opportunity to be discharged as far as possible, then the unified oil-water mixture with accident oil storage well carries out accurate separation processing again, and the key point of this application lies in discharging transformer oil pit 1's profit as early as possible temporarily to in time discharge the rainwater in the oil pit when raining.

In some embodiments, as shown in fig. 1, the principle of the primary oil-water separation chamber 7 is to provide a high water level area 71 and a low water level area 72 with two different water levels, when the transformer oil pit 1 is full of water or oil and enters the primary oil-water separation chamber 7, the liquid levels of the water or oil in the high water level area 71 and the low water level area 72 are consistent, the water or oil directly flows into the oil-water separation chamber 2 from the upper end of the side wall of the low water level area 72, the controller 5 judges that the water or oil is discharged according to the volume and weight, and then there is no need to worry that oil subsequently enters the oil-water separation chamber 2 during water drainage; however, when the transformer oil pit 1 is an oil-water mixture, because the oil density is lower than that of water, the lower layer of the transformer oil pit 1 is an upper layer of oil, the water at the bottom of the transformer oil pit firstly flows into the high water level area 71, the water levels of the water in the high water level area 71 and the low water level area 72 are consistent, the oil enters the oil-water separation chamber 2 and is directly discharged by the controller 5 when the water reaches a set threshold value, then oil is fed, the oil is firstly squeezed into the upper part of the high water level area 71 by the structure formed by the first partition plate 73 and the second partition plate 74, the liquid level height of the high water level area 71 is larger than that of the low water level area 71, the liquid level relay 75 detects liquid level information, the oil-water mixture is proved to exist in the transformer oil pit 1, the oil in the subsequent transformer oil pit 1 can continuously enter the oil-water primary separation chamber 7, because the density of the oil is lower, the oil flows into the, at this time, even if all the oil-water separation chamber 2 is water, the water should not be directly drained, because the oil in the primary oil-water separation chamber 7 will continue to flow into the oil-water separation chamber 2 during the draining process, and at this time, the drained water may be mixed with a certain amount of oil, which may affect the natural environment, the oil-water separation chamber 2 should immediately switch the state to prepare for draining oil or oil-water mixture to the accident oil storage well, so the primary oil-water separation chamber 7 has the function of judging in advance that the oil starts to enter the oil-water separation chamber 2, and the oil is prevented from being mixed when the oil-water separation chamber 2 drains.

This embodiment need not arrange two oil water separation rooms 2, because two oil water separation rooms 2 occupation space are great, still need with set up two pipelines between the oil pit, still need set up two sets of sensors, in order to avoid wasting resources, this embodiment only separates an oil water primary separation room 7 with the baffle, sets up a liquid level relay 75, can judge the oil water mixture in advance. In this embodiment, the liquid level relay 75 may be JYB-714B, but those skilled in the art may also use other types, and the height of the liquid level relay 75 is about 1.05 times of the highest water level line of the low water level region 72, so that the oil-water primary separation chamber 7 can detect when oil is just entering.

After the liquid level in the oil-water separation chamber 2 no longer changes, controller 5 judges that remaining liquid is oil or water or oil-water mixture and thoroughly discharges again, if controller 5 judges all the time that all be the drainage, then need not handle the remaining water of the primary separating chamber of profit 7 deliberately, but when liquid level relay 75 detected liquid level information, prove must have oil to reveal this moment, the oil leak accident has certainly appeared to the transformer this moment, so the staff can come the scene to overhaul, just at this moment can be the profit drainage in the primary separating chamber of profit 7 is done, and the volume of the primary separating chamber of profit 7 need not set up too big, its main effect is used for detecting oil in advance, can sneak into oil when avoiding the water discharge of oil-water separation chamber 2.

In some embodiments, as shown in fig. 1, the first partition 73 includes a vertical plate 731 extending downward from an upper portion of the high water level area 71, and an inclined plate 732 extending obliquely downward from a lower end of the vertical plate 731 toward an upper end of the second partition 74. The arrangement of the first partition 73 in the above manner is more favorable for the oil to be squeezed into the upper part of the high water level area 71 along the sloping plate 732 under the action of the sloping plate 732 in the presence of the water, so that the liquid level relay 75 can detect the liquid level conveniently.

In some embodiments, as shown in fig. 1, a filter chamber 8 is arranged between the transformer oil sump 1 and the primary oil-water separation chamber 7, a filter screen 81 is arranged in the filter chamber 8, and the filter screen 81 divides the filter chamber 8 into an impurity region 82 communicated with the transformer oil sump 1 and a clean region 83 communicated with the primary oil-water separation chamber 7. The purpose of the filter chamber 8 is to filter large volume of impurities from the discharged oil and water, avoiding the situation of blocking pipes in the subsequent operations, in some arrangements the lower part of the transformer oil pit 1 communicates with the upper part of the filter chamber 8, the filter screen 81 is arranged in the middle of the filter chamber 8, and the lower part of the filter chamber 8 communicates with the lower part of the high water level area 71.

In some embodiments, as shown in fig. 1, a container 23 is disposed in the oil-water separation chamber 2, and the first sensor 3 is a weighing device disposed below the container 23. A gas supporting rod 24 is provided under the container 23, and the supporting force provided by the gas supporting rod 24 is equal to the mass of the container 23. The type of the gas supporting rod 24 can adopt XQB 42.0-020-.

In some embodiments, as shown in fig. 1, the upper end circumference of the container 23 is provided with a corrugated section 25, the upper end of the side wall of the low water level region 72 extends toward the oil-water separation chamber 2, and the upper end of the corrugated section 25 is connected to the upper end of the side wall of the low water level region 72. The corrugated section 25 is used for providing a certain deformation allowance for the container 23, when the container 23 enters oil water, the container 23 moves downwards, the corrugated section 25 begins to be elongated, but always keeps being connected with the side wall of the low water level area 72, and therefore the oil water can continuously enter the container 23.

In some embodiments, as shown in fig. 1 and 2, the water inlet ports of the first pipe 21 and the second pipe 22 are connected to the bottom of the container 23 through two water discharge valves 6, each water discharge valve 6 includes a water discharge base 61 connected to the water inlet port, the periphery of the water discharge base 61 is connected to the valve body 62 through radial strips arranged at intervals, a sealing gasket 63 forming a sealing fit with the water discharge base 61 is arranged inside the valve body 62, a pull rod 64 is arranged on the sealing gasket 63, the controller 5 is connected to a driving device 65, and the driving device 65 drives the pull rod 64 to move up and down along the inside of the valve body 62. When the controller 5 judges to discharge oil, water or a mixture of discharged oil and water, the driving device 65 is controlled to start working, the driving device 65 can select a driving motor or a telescopic cylinder and the like to drive the pull rod 64 to work, so that the sealing gasket 63 is separated from the drainage base 61, and oil and water can be discharged from the gap between the radial strips correspondingly through the first pipeline 21 or the second pipeline 22 at the moment, it should be emphasized that the drainage scheme is not limited to the above content, other mechanisms can be adopted to open the first pipeline 21 or the second pipeline 22 to discharge the oil and water, wherein a preferred scheme can adopt a common toilet drainage valve, but the common toilet drainage valve is provided with a full-discharge switch and a half-discharge switch, only the full-discharge switch is adopted in the application, and the advantage of adopting the toilet drainage valve is that after the driving device 65 presses the drainage switch, the pull rod 64 can pull up the sealing gasket 63, along with the gradual reduction of the liquid level, the sealing gasket 63 falls back to form a sealing fit with the drainage base 61, and a great number of embodiments are already provided in the prior art about the structure of the toilet drainage valve, and are not described again.

In some embodiments, the drain base 61 of the drain valve 6, which is connected to the first conduit 21, is also connected to an overflow tube 66. The upper end of overflow pipe 66 is higher than the highest row of oil water liquid level of the settlement of container 23, because can discharge the profit when controller 5 work can judge profit volume to certain threshold value under normal conditions, but if controller 5 broke down the time can not carry out row oil water operation, the liquid level in the container 23 can constantly rise this moment, no matter at this moment oil or water or oil water mixture will all be discharged the profit by overflow pipe 66 through the drainage base 61 on the first pipeline 21, this is the guarantee scheme, also can arrange the alarm on overflow pipe 66 simultaneously, in case the alarm starts then prove controller 5 or be the utility model provides a problem has appeared to the device, lead to can not realizing normal row of oil water, staff receives the signal of alarm this moment, will maintain and debug.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a transformer oil water separation discharging equipment, includes transformer oil pit (1), its characterized in that: the transformer oil sump is characterized by further comprising an oil-water separation chamber (2) communicated with the transformer oil sump (1), a first sensor (3) for collecting the weight of oil and water and a second sensor (4) for collecting the volume of the oil and water are arranged in the oil-water separation chamber (2), and the oil-water separation chamber (2) is provided with a first pipeline (21) for discharging oil or oil-water mixture and a second pipeline (22) for discharging water;

the first sensor (3) and the second sensor (4) are connected with a controller (5), and the controller (5) controls the first pipeline (21) or the second pipeline (22) to be opened according to the oil-water volume information collected by the second sensor (4) and the oil-water weight information collected by the first sensor (3).

2. The transformer oil-water separation discharging device of claim 1, wherein: an oil-water primary separation chamber (7) is arranged between the transformer oil pit (1) and the oil-water separation chamber (2), the oil-water primary separation chamber (7) comprises a high water level area (71) communicated with the transformer oil pit (1) and a low water level area (72) communicated with the oil-water separation chamber (2), a first partition plate (73) is arranged on the upper portion of the high water level area (71) in a downward extending mode, a second partition plate (74) is arranged on the lower portion of the low water level area (72) in an upward extending mode, and the lower end of the first partition plate (73) is lower than the upper end of the second partition plate (74); and a liquid level relay (75) connected with the controller (5) is arranged at the upper part of the high water level area (71), and the height of the liquid level relay (75) is greater than the highest water level line of the low water level area (72).

3. The transformer oil-water separation discharging device of claim 2, wherein: the first partition plate (73) comprises a vertical plate (731) extending downwards from the upper part of the high water level area (71), and the lower end of the vertical plate (731) extends downwards obliquely to the upper end of the second partition plate (74) to form an inclined plate (732).

4. The transformer oil-water separation discharging device of claim 2, wherein: transformer oil pit (1) with be provided with filter chamber (8) between oil water primary separating room (7), be provided with filter screen (81) in filter chamber (8), filter screen (81) will filter chamber (8) separate for with impurity district (82) of transformer oil pit (1) intercommunication and with clean district (83) of oil water primary separating room (7) intercommunication.

5. The transformer oil-water separation discharging device of claim 2, wherein: a container (23) is arranged in the oil-water separation chamber (2), and the first sensor (3) is a weighing device arranged below the container (23).

6. The transformer oil-water separation discharging device of claim 5, wherein: a gas supporting rod (24) is arranged below the container (23), and the supporting force provided by the gas supporting rod (24) is equal to the mass of the container (23).

7. The transformer oil-water separation discharging device of claim 6, wherein: the upper end periphery of the container (23) is provided with a corrugated section (25), the upper end of the side wall of the low water level area (72) extends to the oil-water separation chamber (2), and the upper end of the corrugated section (25) is connected with the upper end of the side wall of the low water level area (72).

8. The transformer oil-water separation discharging device of claim 5, wherein: the second sensor (4) is a liquid level sensor, and the liquid level sensor is arranged on the inner side wall of the container (23).

9. The transformer oil-water separation discharging device of claim 5, wherein: first pipeline (21) with the inlet port of second pipeline (22) with the bottom of container (23) is connected through two drain valves (6), drain valve (6) include drainage base (61) be connected with the inlet port, the border of drainage base (61) is connected with valve body (62) through the footpath strip of interval arrangement, the inside of valve body (62) is provided with and constitutes sealed compound (63) of sealed complex with drainage base (61), be provided with pull rod (64) on sealed compound (63), controller (5) are connected with drive arrangement (65), drive arrangement (65) drive pull rod (64) are along the inside displacement from top to bottom of valve body (62).

10. The transformer oil-water separation discharging device of claim 9, wherein: the drainage base (61) of the drainage valve (6) connected with the first pipeline (21) is also connected with an overflow pipe (66).

Images