An oil leakage monitoring device and accident oil pool structure for a substation

Abstract

The present invention provides an oil leakage monitoring device for a substation, comprising a monitor (1), wherein the monitor (1) is used to be placed in a water seal well (9) and / or an accident oil pool (10) and / or a rainwater well (11), wherein the monitor (1) comprises a floating part and a sinking part, wherein a bilge keel (2) is provided on the outer surface of the sinking part, wherein a height adjustment device (3) is provided on the floating part, wherein a conductivity sensor (4) is provided on the height adjustment device (3), wherein the conductivity sensor (4) comprises a probe, wherein the probe is located at the junction of a liquid surface and air, and wherein a weight adjustment device (5) is provided in the sinking part. In addition, the present invention further discloses an accident oil pool structure using the above-mentioned oil leakage monitoring device, wherein the present invention has the advantage that, by using this structure, when the liquid surface floats, the shaking degree of the monitoring device can be reduced.

Description

[Technical field]

[0001] The invention relates to an oil leakage monitoring device and an accident oil pool structure of a transformer substation, belonging to the field of transformer substation safety equipment. [Background technology]

[0002] When an oil leak occurs in a transformer in a substation, the leaked oil will cause oil pollution. In order to prevent oil leakage, an accident oil pool is often set up to separate and store the leaked oil so that it will not leak out. When oil leaks, a fire will occur. The oil is often directed into a water seal well and the water in the water seal well is used to extinguish the fire.

[0003] In order to prevent oil leakage and pollution, monitoring devices are usually used in the accident oil pool structure for real-time monitoring. Commonly used monitoring devices include buoy monitors. With this method, real-time monitoring can be performed by setting sensors on the monitor. However, when the monitored liquid flows, the buoy will shake together. When the buoy shakes, the detection part of the sensor on it will separate from the measured liquid surface, causing the monitoring data to be affected. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide an oil leakage monitoring device for a transformer substation, so that when the liquid level floats, the shaking degree of the monitoring device can be reduced.

[0005] In order to solve the above-mentioned technical problems, the preferred structure of the oil leakage monitoring device of the substation of the present invention includes a monitor, which is used to be placed in a water seal well and / or an accident oil pool and / or a rainwater well, and the monitor includes a floating part and a sinking part, the floating part is located above the liquid surface, and the sinking part is located below the liquid surface. The outer surface of the sinking part is provided with a bilge keel, and the floating part is provided with a height adjustment device, and the height adjustment device is provided with a conductivity sensor, and the conductivity sensor includes a probe, and the probe is located at the junction of the liquid surface and the air. The height adjustment device drives the conductivity sensor to move by adjusting its own movement, and a weight adjustment device is provided in the sinking part, and the sinking part is floated or sunk by weight adjustment of the weight adjustment device.

[0006] After adopting the above structure, first, the oil leakage monitoring device includes a monitor, and the monitor is used to be placed in a water seal well and / or an accident oil pool and / or a rainwater well. The monitor includes a floating part and a sinking part, and the floating part is located above the liquid surface, and the sinking part is located below the liquid surface, that is, the floating part refers to the part above the liquid surface in the monitor, and the sinking part refers to the part below the liquid surface detected. The outer surface of the sinking part is provided with a bilge keel, so that when the monitor floats on the liquid surface, the shaking degree of the monitor is reduced through the special structure of the bilge keel. The floating part is provided with a height adjustment device, and the height adjustment device is provided with a conductivity sensor. The conductivity sensor detects the conductivity of the liquid. The oil-water ratio is calculated to analyze whether there is an oil leak. The conductivity sensor includes a probe, which is located at the boundary of the liquid surface and the air, that is, when the liquid surface is in a floating state and a calm state, the probe is located at the boundary of the liquid surface and the air. The height adjustment device drives the conductivity sensor to move by adjusting its own movement, and the height of the probe is adjusted by the height adjustment device, so that when the liquid surface floats, the probe of the conductivity sensor can automatically adjust the height to achieve a state of being located at the boundary of the liquid surface and the air. A weight adjustment device is provided in the sinking part, and the sinking part is floated or sunk by weight adjustment of the weight adjustment device, so that the monitor shakes less when floating on the liquid surface.

[0007] Based on the above structure, the height adjustment device adjusts the probe height of the conductivity sensor to ensure that the probe is always located at the junction of the liquid surface and the air, so that the conductivity sensor can always monitor the liquid surface. When oil leaks, the density of the leaked oil is less than the density of water, so that the oil floats on the water surface. By monitoring the conductivity on the liquid surface, it is possible to more accurately determine whether there is an oil leak and the volume of the leaked oil. At this time, the liquid surface presents three states, namely oil, water, and oil-water mixture. In order to prevent environmental factors from causing data deviations, a period of time is used as the standard. When all monitored during a period of time is oil, there is an oil leak and the amount of oil leakage is large. When all monitored during a period of time is water, there is no oil leak. When monitored during a period of time as an oil-water mixture, the oil-water ratio is calculated to analyze the amount of oil leakage. At this time, monitoring the liquid part on the liquid surface is more accurate.

[0008] Based on the above structure, when the liquid level floats and causes the monitor to float, the weight adjustment device first performs preliminary adjustment to preliminarily ensure that the probe part of the conductivity sensor is located at the liquid surface through weight adjustment. Secondly, the height adjustment device is used to perform precise adjustment to ensure that the probe part of the conductivity sensor is located at the junction of the liquid surface and the air. The accuracy of the monitoring data is ensured through secondary adjustment.

[0009] Based on the above structure, when the liquid level floats and causes the monitor to float, the weight adjustment device first performs preliminary adjustment to initially reduce the shaking degree of the monitor through weight adjustment, and at the same time reduces the shaking through the special structure of the bilge keel, so that the shaking degree of the monitoring device can be better reduced.

[0010] Preferably, the height adjustment device comprises a screw rod, a nut and a drive motor, the conductivity sensor is connected to the screw rod or the nut, and the height adjustment device drives the conductivity sensor to move by driving the screw rod or the nut through the drive motor.

[0011] Preferably, a data processing terminal is provided on the floating portion, the data processing terminal is connected to the height adjustment device by a wire, and the conductivity sensor is electrically connected to the data processing terminal through the wire.

[0012] Preferably, the data processing terminal comprises a housing, and a waterproof connector is provided between the housing and the wire.

[0013] Preferably, a baffle is provided on the housing, the baffle comprises a groove, and the opening of the groove faces the conductivity sensor.

[0014] Preferably, a high-precision temperature sensor is also provided on the floating portion.

[0015] Preferably, the high-precision temperature sensor is connected to the height adjustment device.

[0016] Preferably, the cross-section of the floating portion is triangular.

[0017] Preferably, the floating portion is provided with a clip ring for the user to place the monitor easily.

[0018] The invention also discloses an accident oil pool structure, including an oil storage pit, a water seal well, an accident oil pool, a rainwater well and an oil leakage monitoring device. The water seal well, the accident oil pool and the rainwater well are all provided with outlets for discharging liquid. The oil leakage monitoring device adopts the oil leakage monitoring device of the substation as described in any of the above schemes.

[0019] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0020] The present invention is further described in detail below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of an oil leakage monitoring device according to Embodiment 1;

[0022] Figure 2 It is a schematic diagram of the bilge keel in the oil leakage monitoring device of Example 1;

[0023] Figure 3 It is a schematic diagram of the oil leakage monitoring device in the embodiment 1 at the position of the height adjustment device;

[0024] Figure 4 It is a top view of the oil leakage monitoring device of Example 1;

[0025] Figure 5 It is a bottom view of the oil leakage monitoring device of Example 1;

[0026] Figure 6 This is a schematic diagram of the accident oil pool structure of Example 2. [Specific implementation method]

[0027] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0028] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate orientation or position relationship are based on the orientation or position relationship shown in the drawings and are only for the convenience of describing the embodiments and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] Embodiment 1:

[0030] like Figure 1 and Figure 2 As shown, the preferred structure of the oil leakage monitoring device of the substation in this embodiment includes a monitor 1, which is used to be placed in a water seal well 9 and / or an accident oil pool 10 and / or a rainwater well 11. The monitor 1 includes a floating part and a sinking part, the floating part is located above the liquid surface, and the sinking part is located below the liquid surface. A bilge keel 2 is provided on the outer surface of the sinking part, and a height adjustment device 3 is provided on the floating part. A conductivity sensor 4 is provided on the height adjustment device 3, and the conductivity sensor 4 includes a probe, and the probe is located at the junction of the liquid surface and the air. The height adjustment device 3 drives the conductivity sensor 4 to move by adjusting its own movement. A weight adjustment device 5 is provided in the sinking part, and the sinking part floats or sinks by weight adjustment of the weight adjustment device 5.

[0031] After adopting the above structure, first, the oil leakage monitoring device includes a monitor 1, and the monitor 1 is used to be placed in a water seal well 9 and / or an accident oil pool 10 and / or a rainwater well 11. The monitor 1 includes a floating part and a sinking part, and the floating part is located above the liquid surface, and the sinking part is located below the liquid surface, that is, the floating part refers to the part above the liquid surface in the monitor 1, and the sinking part refers to the part below the liquid surface. The outer surface of the sinking part is provided with a bilge keel 2, so that when the monitor 1 floats on the liquid surface, the special structure of the bilge keel 2 can reduce the shaking degree of the monitor 1. The floating part is provided with a height adjustment device 3, and the height adjustment device 3 is provided with a conductivity sensor 4. The conductivity sensor 4 detects the conductivity of the liquid. Conductivity, the oil-water ratio is obtained by calculation, and then whether there is an oil leak, the conductivity sensor 4 includes a probe, the probe is located at the junction of the liquid surface and the air, that is, when the liquid surface is in a floating state and a calm state, the probe is located at the junction of the liquid surface and the air, the height adjustment device 3 drives the conductivity sensor 4 to move by adjusting its own movement, and the height of the probe is adjusted by the height adjustment device 3, so that when the liquid surface floats, the probe of the conductivity sensor 4 can automatically adjust the height to achieve the state of being located at the junction of the liquid surface and the air, the sinking part is provided with a weight adjustment device 5, the sinking part is floated or sunk by the weight adjustment of the weight adjustment device 5, so that the monitor 1 shakes less when floating on the liquid surface.

[0032] Based on the above structure, the height adjustment device 3 adjusts the probe height of the conductivity sensor 4 to ensure that the probe is always located at the junction of the liquid surface and the air, so that the conductivity sensor 4 can always monitor the liquid surface. When oil leaks, the density of the leaked oil is less than the density of water, so that the oil floats on the water surface. By monitoring the conductivity on the liquid surface, it is possible to more accurately determine whether there is oil leakage and the volume of the leaked oil. At this time, the liquid surface presents three states, namely oil, water and oil-water mixture. In order to prevent environmental factors from causing data deviations, a period of time is used as a standard. When oil is monitored during a period of time, there is oil leakage and the amount of oil leakage is large. When water is monitored during a period of time, there is no oil leakage. When oil-water mixture is monitored during a period of time, the oil-water ratio is calculated to analyze the amount of oil leakage. At this time, monitoring the liquid part on the liquid surface is more accurate.

[0033] Based on the above structure, when the liquid level floats and causes the monitor 1 to float, the weight adjustment device 5 first performs preliminary adjustment to preliminarily ensure that the probe part of the conductivity sensor 4 is located at the liquid surface through weight adjustment. Secondly, the height adjustment device 3 is used to perform precise adjustment to ensure that the probe part of the conductivity sensor 4 is located at the junction of the liquid surface and the air. The accuracy of the monitoring data is ensured through secondary adjustment.

[0034] Based on the above structure, when the liquid level floats and causes the monitor 1 to float, the weight adjustment device 5 first performs preliminary adjustment to preliminarily reduce the shaking degree of the monitor 1 through weight adjustment, and at the same time reduces the shaking through the special structure of the bilge keel 2, so that the shaking degree of the monitoring device can be better reduced.

[0035] Among them, the weight adjustment device 5 can be a suspended iron ball deflection mechanism, that is, it includes an iron ball and an arc-shaped groove, the iron ball is located in the arc-shaped groove, when the monitor 1 is shaken, one side of the monitor 1 shakes and floats, and the end of the arc-shaped groove close to this side automatically deviates downward, so that the iron ball inside it moves toward the side where the monitor 1 floats, adding weight to the side where the monitor 1 floats, thereby reducing the degree of floating of the monitor 1.

[0036] At the same time, the weight adjustment device 5 can also be a liquid suction and discharge mechanism, that is, a liquid suction and discharge device is provided inside the sinking part of the monitor 1. When oil leaks into the water, the density of the oil-water mixture will change, causing the monitor 1 to sink or float, resulting in the probe of the conductivity sensor not being located at the junction of the liquid surface and the air. When the monitor 1 sinks, the liquid is discharged through the liquid suction and discharge device of the monitor 1 to reduce the weight of the monitor 1. When the monitor 1 floats, the liquid is sucked through the liquid suction and discharge device of the monitor 1 to increase the weight of the monitor 1. In addition, a liquid level probe sensor can be added to perform liquid level detection, and the measured liquid level is fed back in real time. The weight is adjusted in real time through the liquid suction and discharge device to ensure that the probe of the conductivity sensor in the monitor 1 is located at the junction of the liquid surface and the air in time.

[0037] In addition, in order to prevent the sinking part from being damaged by high-temperature oil, the sinking part can be made of refractory curved surface material or its surface can be coated with refractory material. To ensure timely alarm after oil leakage, an oil leakage warning connector and / or an external alarm light can be added at the position of the height adjustment device 3.

[0038] In order to optimize the structure, in this embodiment, the height adjustment device 3 preferably includes a screw, a nut and a drive motor. The conductivity sensor 4 is connected to the screw or the nut. The height adjustment device 3 drives the conductivity sensor 4 to move by driving the screw or the nut through the drive motor, so that height adjustment can be achieved through the height adjustment device 3.

[0039] In order to enable the monitor 1 to achieve intelligent control, the present embodiment preferably has a data processing terminal 12 on the floating part, and the data processing terminal 12 is connected to the height adjustment device 3 by a wire, and the conductivity sensor 4 is electrically connected to the data processing terminal 12 through the wire, so that the data processing terminal 12 can control the movement of the driving motor of the height adjustment device 3 through the wire, and the conductivity sensor 4 can transmit the measured data to the data processing terminal 12 through the wire, and the data processing terminal 12 can also control the weight adjustment device 5. In addition, the data processing terminal 12 is connected to an external power supply, a control device or an alarm device through a wire or wireless transmission.

[0040] In order to prevent liquid from penetrating from the connection between the housing of the data processing terminal 12 and the wire, Figure 4 As shown, the data processing terminal 12 of this embodiment preferably includes a shell, and a waterproof connector 7 is provided between the shell and the wire. By adding the waterproof connector 7, the shell and the wire are relatively sealed, thereby preventing liquid from penetrating from the connection between the shell of the data processing terminal 12 and the wire.

[0041] To prevent liquid from splashing onto the conductivity sensor, Figure 3 As shown, in this embodiment, a baffle 13 is preferably provided on the housing, wherein the baffle 13 includes a groove, and the opening of the groove faces the conductivity sensor 4. The baffle 13 can initially block the splashing liquid to prevent the baffle 13 from splashing the liquid onto the conductivity sensor.

[0042] In order to improve the measurement accuracy, in this embodiment, a high-precision temperature sensor is preferably provided on the float portion. By adding a high-precision temperature sensor to measure the real-time temperature of the liquid, the monitoring data of the conductivity sensor is compensated, thereby improving the measurement accuracy.

[0043] In order to ensure that the high-precision temperature sensor can measure the data at the interface between the liquid surface and the air, the present embodiment preferably connects the high-precision temperature sensor to the height adjustment device 3, and adjusts the position of the high-precision temperature sensor in real time through the height adjustment device 3 to ensure that the high-precision temperature sensor can measure the data at the interface between the liquid surface and the air.

[0044] In order to make the monitor 1 more stable, Figure 5 As shown, in this embodiment, the cross-section of the float portion is preferably triangular. At the same time, bilge keels are provided on the three sides of the monitor 1 to increase the stability of the monitor 1 and improve the anti-rolling performance of the bilge keel.

[0045] In order to facilitate the user to place the monitor 1, the present embodiment preferably provides a snap ring 6 on the floating portion. Since the user places the monitor 1 on the ground and the liquid surface is located underground, the monitor 1 can be placed on or taken out of the liquid surface by hanging a rope on the snap ring 6, making it more convenient for the user to place or take out the monitor 1.

[0046] Embodiment 2:

[0047] This embodiment discloses an accident oil pool structure, such as Figure 6 As shown, the oil leakage monitoring device of the substation described in Example 1 is used to monitor the accident oil pool structure of this embodiment. This embodiment mainly includes an oil storage pit 8, a water seal well 9, an accident oil pool 10, a rainwater well 11 and an oil leakage monitoring device. The water seal well 9, the accident oil pool 10 and the rainwater well 11 are all provided with outlets for discharging liquid, wherein the outlet of the rainwater well 11 is the main outlet. The preferred oil leakage monitoring device of this embodiment is placed in the water seal well 9, the accident oil pool 10 and the rainwater well 11, which can achieve a three-level early warning to ensure the accuracy of monitoring. When the transformer in the substation leaks oil, the burning oil is extinguished by the water in the water seal well 9, and then discharged into the accident oil pool 10 for oil-water separation. After the oil and water separation in the accident oil pool 10, the water is discharged into the rainwater well 11, and the oil is stored in the accident oil pool 10 for recycling.

[0048] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. An oil leakage monitoring device for a substation, characterized in that: The monitor (1) comprises a monitor, wherein the monitor (1) is used to be placed in a water seal well (9) and / or an accident oil pool (10) and / or a rainwater well (11), wherein the monitor (1) comprises a floating part and a sinking part, wherein the floating part is located above the liquid surface, and the sinking part is located below the liquid surface, wherein a bilge keel (2) is provided on the outer surface of the sinking part, wherein a height adjustment device (3) is provided on the floating part, wherein a conductivity sensor (4) is provided on the height adjustment device (3), wherein the conductivity sensor (4) comprises a probe, wherein the probe is located at the junction of the liquid surface and the air, wherein the height adjustment device (3) drives the conductivity sensor (4) to move by adjusting its own movement, wherein a weight adjustment device (5) is provided in the sinking part, wherein the sinking part floats up or sinks by weight adjustment of the weight adjustment device (5); The height adjustment device (3) comprises a screw rod, a nut and a drive motor, the conductivity sensor (4) is connected to the screw rod or the nut, and the height adjustment device (3) drives the screw rod or the nut to move by the drive motor, thereby driving the conductivity sensor (4) to move; The floating part is also provided with a high-precision temperature sensor.

2. The oil leakage monitoring device for a substation according to claim 1, characterized in that: A data processing terminal (12) is provided on the floating portion, the data processing terminal (12) and the height adjustment device (3) are connected by a wire, and the conductivity sensor (4) is electrically connected to the data processing terminal (12) via the wire.

3. The oil leakage monitoring device for a substation according to claim 2, characterized in that: The data processing terminal (12) comprises a shell, and a waterproof connector (7) is provided between the shell and the wire.

4. The oil leakage monitoring device for a substation according to claim 3, characterized in that: A baffle (13) is provided on the housing, and the baffle (13) comprises a groove, and the opening of the groove faces the conductivity sensor (4).

5. The oil leakage monitoring device for a substation according to claim 1, characterized in that: The high-precision temperature sensor is connected to the height adjustment device (3).

6. The oil leakage monitoring device for a substation according to claim 1, characterized in that: The cross section of the floating portion is triangular.

7. The oil leakage monitoring device for a substation according to claim 1, characterized in that: The floating portion is provided with a clamping ring (6) for facilitating the user to place the monitor (1).

8. An accident oil pool structure, comprising an oil storage pit (8), a water seal well (9), an accident oil pool (10), a rainwater well (11) and an oil leakage monitoring device, wherein the water seal well (9), the accident oil pool (10) and the rainwater well (11) are all provided with outlets for discharging liquid, characterized in that: The oil leakage monitoring device adopts the oil leakage monitoring device of the substation according to any one of claims 1 to 7.

Images