A flow-resistant oil leakage detection rod and accident oil pool structure for a substation

Abstract

The present invention provides an anti-flow oil leakage detection rod for a substation, comprising a fixed tube, one end of which is provided with a conductivity sensor, the conductivity sensor being used to be placed at the outlet of a water seal well (9) and / or an accident oil pool (10) and / or a rainwater well (11), the conductivity sensor comprising a first probe sensor (1) and a second probe sensor (2), the first probe sensor (1) and the second probe sensor (2) both being provided with probes, and the tail end of the probe in the first probe sensor (1) and the head end of the probe in the second probe sensor (2) being located on the same horizontal plane, and in addition, the present invention also discloses an accident oil pool structure using the above-mentioned anti-flow oil leakage detection rod, the advantage of the present invention being that, by using this structure, the monitoring device of the detection rod can resist the influence caused by the floating of the liquid surface.

Description

[Technical field]

[0001] The invention relates to an anti-flow oil leakage detection rod 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 move with it, affecting the monitoring data. When the liquid level floats too much, the buoy will overturn, causing damage to the monitoring device and failing to perform timely and accurate monitoring. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide an anti-flow oil leakage detection rod for a transformer substation, so that when the liquid surface floats, the monitoring device of the detection rod is not affected.

[0005] In order to solve the above-mentioned technical problems, the preferred structure of the anti-flow oil leakage detection rod of the substation of the present invention includes a fixed tube, one end of which is provided with a conductivity sensor, and the conductivity sensor is used to be placed at the outlet of the water seal well and / or the accident oil pool and / or the rainwater well, and the fixed tube is fixed relative to the well wall of the water seal well and / or the inner wall of the accident oil pool and / or the well wall of the rainwater well, and the conductivity sensor includes a first probe sensor and a second probe sensor, and the first probe sensor and the second probe sensor are both provided with probes, and the tail end of the probe in the first probe sensor and the head end of the probe in the second probe sensor are located on the same horizontal plane.

[0006] After adopting the above structure, firstly, the anti-flow oil leakage detection rod includes a fixed tube, one end of which is provided with a conductivity sensor, the conductivity of the liquid surface is monitored by the conductivity sensor, and then compared with the conductivity under normal conditions, so as to obtain the oil-water ratio and detect whether there is an oil leakage. The conductivity sensor is used to be placed at the outlet of the water seal well and / or the accident oil pool and / or the rainwater well. Usually, the liquid flow rate at the outlet is fast and the flow rate is large, but the liquid flowing out of the outlet is dense. Compared with the inside of the water seal well or the accident oil pool or the rainwater well, the oil-liquid ratio obtained by detecting the liquid conductivity at the outlet has a higher accuracy. The fixed tube is fixed relative to the well wall of the water seal well and / or the inner wall of the accident oil pool and / or the well wall of the rainwater well, so that the conductivity sensor can pass through the well wall of the water seal well and / or the inner wall of the accident oil pool and / or the well wall of the rainwater well. The conductivity sensor is fixed relative to the wall of the water seal well and / or the inner wall of the accident oil pool and / or the wall of the rainwater well through a fixed pipe. The conductivity sensor includes a first probe sensor and a second probe sensor. The first probe sensor and the second probe sensor are both provided with probes. The probe sensor is used to monitor through the probes. As long as the liquid level contacts the probe surface, it can be monitored. The monitoring device is optimized so that the liquid level change at a certain depth can be monitored by one probe to prevent material waste. The tail end of the probe in the first probe sensor and the head end of the probe in the second probe sensor are located on the same horizontal plane. Usually, the probe sensor includes a probe and a circuit box, wherein the tail end of the probe refers to the end of the probe connected to the circuit box, and the head end of the probe refers to the other end thereof.

[0007] Secondly, in the prior art, when the liquid level floats greatly, it will cause the buoy to overturn. In the above scheme, the conductivity sensor is fixed relative to the wall of the water seal well and / or the inner wall of the accident oil pool and / or the wall of the rainwater well, and the probe sensor can resist the impact of liquid flow. Therefore, when the liquid level floats greatly and the liquid fluidity is strong, it will not cause the conductivity sensor to be displaced and affect monitoring.

[0008] Based on the above structure, the liquid level changes can be monitored through dual monitoring by the first probe sensor and the second probe sensor. When the liquid level reaches the position of the second probe sensor, the second probe sensor monitors the conductivity at this time to obtain the oil-water ratio. When the oil-water ratio is abnormal, an alarm signal is issued.

[0009] Based on the above structure, the tail end of the probe in the first probe sensor and the head end of the probe in the second probe sensor are located on the same horizontal plane, so that the second probe sensor performs measurement immediately after the tail end of the first probe sensor, thereby preventing the liquid level from being unable to be monitored when it is between the tail end of the probe in the first probe sensor and the head end of the probe in the second probe sensor, thereby preventing a dangerous accident from occurring.

[0010] Preferably, the conductivity sensor comprises a third probe sensor, and the tail end of the probe in the second probe sensor and the head end of the probe in the third probe sensor are located on the same horizontal plane.

[0011] Preferably, the conductivity sensor is located on the outer surface of the fixed tube, and on the tube body of the fixed tube, the first probe sensor and the second probe sensor are not on the same side, and the second probe sensor and the third probe sensor are not on the same side.

[0012] Preferably, the fixed tube comprises an inner tube and an outer tube, and the inner tube and the outer tube are fixed with bolts.

[0013] Preferably, the inner tube and the outer tube are both provided with bolt holes, and the inner tube and the outer tube are relatively fixed by inserting bolts into the bolt holes.

[0014] Preferably, the inner tube and the outer tube are fixed with a plurality of bolts, and the plurality of bolts correspond to a group of bolt holes.

[0015] Preferably, the inner tube or the outer tube has multiple groups of bolt holes along the length direction of the tube.

[0016] Preferably, the conductivity sensor is located at one end of the inner tube, the other end of the inner tube is relatively fixed to one end of the outer tube, and the other end of the outer tube is provided with a clamping portion.

[0017] Preferably, the engaging portion includes a groove, and the fixing pipe is relatively fixed to the water seal well and / or the accident oil pool and / or the rainwater well by engaging with the groove on the ground side of the water seal well and / or the accident oil pool and / or the rainwater well.

[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 detection rod. The water seal well, the accident oil pool and the rainwater well are all provided with outlets for discharging liquid. The oil leakage detection rod adopts the anti-flow oil leakage detection rod 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 It is a schematic diagram of the oil leakage detection rod of Example 1;

[0022] Figure 2 for Figure 1 A partial enlarged view of

[0023] Figure 3 It is a side view of the oil leak detection rod of Example 1;

[0024] Figure 4 It is a schematic diagram of the inner tube and the outer tube of the oil leakage detection rod in Example 1;

[0025] Figure 5 This is a schematic diagram of the accident oil pool structure of Example 2. [Specific implementation method]

[0026] 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.

[0027] 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.

[0028] Embodiment 1:

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the preferred structure of the anti-flow oil leakage detection rod of this embodiment includes a fixed tube, one end of which is provided with a conductivity sensor, and the conductivity sensor is used to be placed at the outlet of the water seal well 9 and / or the accident oil pool 10 and / or the rainwater well 11, and the fixed tube is fixed relative to the well wall of the water seal well 9 and / or the inner wall of the accident oil pool 10 and / or the well wall of the rainwater well 11, and the conductivity sensor includes a first probe sensor 1 and a second probe sensor 2, and the first probe sensor 1 and the second probe sensor 2 are both provided with probes, and the tail end of the probe in the first probe sensor 1 and the head end of the probe in the second probe sensor 2 are located on the same horizontal plane.

[0030] After adopting the above structure, firstly, the anti-flow oil leakage detection rod includes a fixed tube, one end of which is provided with a conductivity sensor, the conductivity of the liquid surface is monitored by the conductivity sensor, and then compared with the conductivity under normal conditions, so as to obtain the oil-water ratio and detect whether there is an oil leakage. The conductivity sensor is used to be placed at the outlet of the water seal well 9 and / or the accident oil pool 10 and / or the rainwater well 11. Usually, the liquid flow rate at the outlet is fast and the flow rate is large, but the liquid flowing out of the outlet is dense. Compared with the inside of the water seal well 9 or the accident oil pool 10 or the rainwater well 11, the oil-liquid ratio obtained by detecting the liquid conductivity at the outlet has a higher accuracy. The fixed tube is fixed relative to the well wall of the water seal well 9 and / or the inner wall of the accident oil pool 10 and / or the well wall of the rainwater well 11, so that the conductivity sensor The device is fixed relative to the wall of the water seal well 9 and / or the inner wall of the accident oil pool 10 and / or the wall of the rainwater well 11 through a fixed tube. The conductivity sensor includes a first probe sensor 1 and a second probe sensor 2. The first probe sensor 1 and the second probe sensor 2 are both provided with probes. The probe sensor is used to monitor through the probe. As long as the liquid level contacts the probe surface, it can be monitored. The monitoring device is optimized so that the liquid level change at a certain depth can be monitored by one probe to prevent material waste. The tail end of the probe in the first probe sensor 1 and the head end of the probe in the second probe sensor 2 are located on the same horizontal plane. Usually, the probe sensor includes a probe and a circuit box, wherein the tail end of the probe refers to the end of the probe connected to the circuit box, and the head end of the probe refers to the other end thereof.

[0031] Secondly, in the prior art, when the liquid level floats greatly, it will cause the buoy to overturn. In the above scheme, the conductivity sensor is fixed relative to the well wall of the water seal well 9 and / or the inner wall of the accident oil pool 10 and / or the well wall of the rainwater well 11, and the probe sensor can resist the impact of liquid flow. Therefore, when the liquid level floats greatly and the liquid fluidity is strong, it will not cause the conductivity sensor to be displaced and affect monitoring.

[0032] Based on the above structure, the liquid level changes can be monitored through dual monitoring by the first probe sensor 1 and the second probe sensor 2. When the liquid level reaches the position of the second probe sensor 2, the second probe sensor 2 monitors the conductivity at this time to obtain the oil-water ratio. When the oil-water ratio is abnormal, an alarm signal is issued.

[0033] Based on the above structure, the tail end of the probe in the first probe sensor 1 and the head end of the probe in the second probe sensor 2 are located on the same horizontal plane, so that the second probe sensor 2 is closely connected to the tail end of the first probe sensor 1 for measurement, thereby preventing the liquid level from being unable to be monitored when it is between the tail end of the probe in the first probe sensor 1 and the head end of the probe in the second probe sensor 2, thereby preventing a dangerous accident from occurring.

[0034] In addition, in order to prevent the probe sensor from being damaged by high-temperature oil, the probe sensor can be made of high-temperature resistant material or coated with a layer of high-temperature resistant material. In order to prevent the fixed pipe from being damaged by high-temperature oil and to ensure that the fixed pipe can be better fixed on the well wall of the water seal well 9 and / or the inner wall of the accident oil pool 10 and / or the well wall of the rainwater well 11, the fixed pipe can be made of hard high-temperature resistant material.

[0035] In order to optimize the structure, the conductivity sensor of this embodiment preferably includes a third probe sensor 3, and the tail end of the probe in the second probe sensor 2 and the head end of the probe in the third probe sensor 3 are located on the same horizontal plane, that is, three probe sensors are provided on the fixed tube, and triple measurement is achieved by the three probe sensors, and the measured oil or oil-water mixture is monitored in three levels. At the same time, the sum of the probe lengths of the three probe sensors is exactly the height of the discharge port, so that the liquid level data at the discharge port position can be fully measured by the three probe sensors. At the same time, each probe sensor is provided with three probes, so that it can measure data at more positions on the liquid surface at the same time, thereby making the measurement more accurate.

[0036] Increasing the number of probe sensors to increase measurement accuracy and measurement value width is within the protection scope of this solution.

[0037] In order to prevent the probe sensors from blocking each other during installation, in this embodiment, the conductivity sensor is preferably located on the outer surface of the fixed tube, and on the tube body of the fixed tube, the first probe sensor 1 and the second probe sensor 2 are not on the same side, and the second probe sensor 2 and the third probe sensor 3 are not on the same side. Usually, the probe sensor includes a probe and a circuit box, and the circuit box and the probe are sealed and made of high-temperature resistant material. In order to ensure that the tail end of the probe in the first probe sensor 1 and the head end of the probe in the second probe sensor 2 are located on the same horizontal plane, and the tail end of the probe in the second probe sensor 2 and the head end of the probe in the third probe sensor 3 are located on the same horizontal plane, when two adjacent probe sensors are installed on the same side, an unmeasurable space will appear between the probes of the two adjacent probe sensors due to the obstruction of the circuit box. The installation method on different sides can optimize the structure, ensure the normal operation of the probe sensor, and there is no unmeasurable space between the probes of the two adjacent probe sensors. At the same time, when the liquid flows through the probes from different sides, multi-directional liquid data can be measured.

[0038] In order to make the fixed pipe suitable for deeper locations, such as Figure 4 As shown, in this embodiment, the fixed pipe preferably includes an inner pipe 4 and an outer pipe 5. The inner pipe 4 and the outer pipe 5 are fixed with bolts. By stacking two pipes, the length of the fixed pipe is increased.

[0039] In order to fix the inner tube 4 relative to the outer tube 5, in this embodiment, preferably, bolt holes 6 are provided on the inner tube 4 and the outer tube 5, and the inner tube 4 and the outer tube 5 are relatively fixed by bolts inserted in the bolt holes 6. Bolt holes 6 are provided on the corresponding sides of the inner tube 4 and the outer tube 5. The bolts are inserted in the four bolt holes 6 on the inner tube 4 and the outer tube 5, and are tightened by two nuts so that the inner tube 4 and the outer tube 5 are tightly pressed between the two nuts, thereby fixing the inner tube 4 relative to the outer tube 5.

[0040] In order to increase the stability of the fixed tube, in this embodiment, the inner tube 4 and the outer tube 5 are preferably fixed with multiple bolts, and the multiple bolts correspond to a group of bolt holes 6. By increasing the number of bolts and bolt holes 6, it is ensured that the inner tube 4 and the outer tube 5 are fixed with multiple bolts, thereby increasing the stability of the fixed tube.

[0041] In order to make the fixed tube retractable, in this embodiment, preferably, the inner tube 4 or the outer tube 5 has multiple groups of bolt holes 6 along the tube length direction, that is, when the inner tube 4 is provided with multiple groups of bolt holes 6, the outer tube 5 is connected with different bolt holes 6 by bolts to achieve the expansion and contraction of the fixed tube; when the outer tube 5 is provided with multiple groups of bolt holes 6, the inner tube 4 is connected with different bolt holes 6 by bolts to achieve the expansion and contraction of the fixed tube, so that the fixed tube can be expanded and contracted to adapt to discharge ports of different depths.

[0042] In order to further optimize the structure, the conductivity sensor preferably described in this embodiment is located at one end of the inner tube 4, and the other end of the inner tube 4 is relatively fixed to one end of the outer tube 5. The other end of the outer tube 5 is provided with a clamping portion 7, that is, the inner tube 4 is located at a deeper position, and the outer tube 5 is located at a position close to the ground, and is installed through the clamping portion 7. When the fixed tube is installed, the outer tube 5 is located on the outer surface of the inner tube 4, and its volume and weight are large. Since the installation is performed on the ground during installation, the operation and installation of the outer tube 5 can prevent the bolts from being damaged due to unbalanced force when the installation is based on the inner tube 4.

[0043] To facilitate processing, the locking portion 7 of this embodiment preferably includes a groove, and the fixed pipe is relatively fixed to the water seal well 9 and / or the accident oil pool 10 and / or the rainwater well 11 by locking the groove with the water seal well 9 and / or the accident oil pool 10 and / or the rainwater well 11 on the ground side. The groove is engaged with the wall thickness of the water seal well 9 and / or the accident oil pool 10 and / or the rainwater well 11 on the ground side or the ground fixing device, which has a simple structure, is easy to install and easy to process.

[0044] Embodiment 2:

[0045] This embodiment discloses an accident oil pool structure, such as Figure 5As shown, the anti-flow oil leakage detection rod 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 detection rod. The water seal well 9, the accident oil pool 10 and the rainwater well 11 are all provided with a discharge port for discharging liquid, wherein the discharge port of the rainwater well 11 is a total discharge port. In this embodiment, the oil leakage detection rod is preferably placed at the discharge port of the rainwater well 11. The environment in the rainwater well 11 is complex, the liquid flows faster, and the liquid level floats more. The anti-flow oil leakage detection rod in the above scheme can be used in a more complex environment. 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.

[0046] 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 anti-flow oil leakage detection rod for a substation, characterized in that: The invention comprises a fixed pipe, one end of which is provided with a conductivity sensor, the conductivity sensor being used to be placed at the outlet of a water seal well (9) and / or an accident oil pool (10) and / or a rainwater well (11), the fixed pipe being fixed relative to the well wall of the water seal well (9) and / or the inner wall of the accident oil pool (10) and / or the well wall of the rainwater well (11), the conductivity sensor comprising a first probe sensor (1) and a second probe sensor (2), the first probe sensor (1) and the second probe sensor (2) both being provided with probes, and the tail end of the probe in the first probe sensor (1) and the head end of the probe in the second probe sensor (2) being located on the same horizontal plane, the conductivity sensor comprising a third probe sensor (3), the tail end of the probe in the second probe sensor (2) and the head end of the probe in the third probe sensor (3) being located on the same horizontal plane, the fixed pipe comprising an inner pipe (4) and an outer pipe (5), the inner pipe (4) and the outer pipe (5) being fixed by bolts.

2. The anti-flow oil leakage detection rod for a substation according to claim 1, characterized in that: The conductivity sensor is located on the outer surface of the fixed tube, and on the tube body of the fixed tube, the first probe sensor (1) and the second probe sensor (2) are not on the same side, and the second probe sensor (2) and the third probe sensor (3) are not on the same side.

3. The anti-flow oil leakage detection rod for substation according to claim 1, characterized in that: The inner tube (4) and the outer tube (5) are both provided with bolt holes (6), and the inner tube (4) and the outer tube (5) are relatively fixed by bolts inserted into the bolt holes (6).

4. The anti-flow oil leakage detection rod for a substation according to claim 3, characterized in that: The inner tube (4) and the outer tube (5) are fixed by using a plurality of bolts, and the plurality of bolts correspond to a group of bolt holes (6).

5. The anti-flow oil leakage detection rod for a substation according to claim 4, characterized in that: The inner tube (4) or the outer tube (5) has a plurality of groups of bolt holes (6) along the tube length direction.

6. The anti-flow oil leakage detection rod for substation according to claim 1, characterized in that: The conductivity sensor is located at one end of the inner tube (4), the other end of the inner tube (4) is relatively fixed to one end of the outer tube (5), and the other end of the outer tube (5) is provided with a clamping portion (7).

7. The anti-flow oil leakage detection rod for a substation according to claim 6, characterized in that: The engaging portion (7) comprises a groove, and the fixing pipe is relatively fixed to the water seal well (9) and / or the accident oil pool (10) and / or the rain water well (11) by engaging the groove with the side of the water seal well (9) and / or the accident oil pool (10) and / or the rain water well (11) located on the ground.

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 detection rod, 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 detection rod is the anti-flow type oil leakage detection rod for the substation according to any one of claims 1 to 7.

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