Substation drainage device

Abstract

The present invention relates to a substation drainage device, comprising a cable trench, a water collection well, a drainage ditch, a first liquid level sensor, a second liquid level sensor, a flow sensor, an alarm, and a controller. The cable trench is connected to the water collection well, a pumping device is provided in the water collection well, and the water outlet of the pumping device is connected to the drainage ditch via a drainage pipe. The first liquid level sensor is installed in the water collection well to detect the liquid level in the water collection well, the second liquid level sensor is installed in the cable trench to detect the liquid level in the cable trench, and the flow sensor is installed on the drainage pipe to detect whether there is liquid flowing in the drainage pipe. The alarm is used to issue an alarm message. The controller is connected to the first liquid level sensor, the second liquid level sensor, the flow sensor, the alarm, and the pumping device. Compared with the prior art, the present invention can automatically drain water and generate an alarm when water accumulates, thus meeting the drainage needs of unmanned substations.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer substations, and in particular to a drainage device for a transformer substation. Background Art

[0002] With the rapid development of urbanization in my country, urban development has put forward higher requirements for electricity demand and power supply reliability, and the safety considerations for substation construction are also gradually increasing. Substations are a kind of building facilities for power transmission and distribution. For outdoor substations, waterproofing is very important.

[0003] During flood season, substations are prone to problems such as rainwater backflow into cable trenches, posing a threat to the safe operation of equipment. Currently, some substations have installed automatic drainage devices in cable trenches and water collection wells. The basic principle is to detect the liquid level to trigger the pumping device to drain water. However, the operational reliability is not high enough. If the measuring element (float, liquid level sensor) fails, the pumping device fails, the control circuit fails, or the drainage pipe is abnormal, the drainage cannot be achieved, forcing staff to spend time inspecting the drainage device. Moreover, if the drainage device fails, it is necessary to check and test each component one by one to locate the fault. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a substation drainage device that can automatically drain water and alarm when there is water accumulation, thereby meeting the drainage needs of unmanned substations.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A substation drainage device includes a cable trench, a water collection well, a drainage ditch, a first liquid level sensor, a second liquid level sensor, a flow sensor, an alarm, and a controller;

[0007] The cable trench is connected to a water collection well, a water pumping device is provided in the water collection well, and the water outlet of the water pumping device is connected to the drainage ditch through a drainage pipe;

[0008] The first liquid level sensor is installed in the water collection well to detect the liquid level height of the water collection well. The second liquid level sensor is installed in the cable trench to detect the liquid level height of the cable trench. The flow sensor is installed on the drainage pipe to detect whether there is liquid flowing in the drainage pipe.

[0009] The alarm is used to issue an alarm message;

[0010] The controller is connected with the first liquid level sensor, the second liquid level sensor, the flow sensor, the alarm and the pumping device.

[0011] Furthermore, the controller includes a first comparator, a first timer, a second comparator, and a first AND gate circuit unit, wherein the input end of the first comparator is connected to the first liquid level sensor, the output end of the first comparator is connected to the timing input end of the first timer and the input end of the first AND gate circuit unit, the input end of the second comparator is connected to the output end of the first timer, the output end of the second comparator is connected to the input end of the first AND gate circuit unit, and the output end of the first AND gate circuit unit is connected to the drive circuit of the pumping device;

[0012] The controller further includes a first input module and a second input module, wherein the first input module is connected to the reference end of the first comparator, and the second input module is connected to the reference end of the second comparator.

[0013] Furthermore, the controller includes a second timer and at least one third comparator, wherein the timing input of the second timer is connected to the output of the first AND gate circuit unit, the output of the second timer is connected to the input of the third comparator, and the output of the third comparator is connected to the regulating circuit, and the regulating circuit is used to adjust the water pumping amount of the pumping device;

[0014] The controller further includes at least one third input module, and the third input module is connected to the reference terminal of the third comparator in a one-to-one correspondence.

[0015] Furthermore, the alarm includes a first alarm module, and the controller also includes a fourth comparator, the input end of the fourth comparator is connected to the flow sensor, the reference end of the fourth comparator is connected to the output end of the first AND gate circuit unit, and the output end of the fourth comparator is connected to the first alarm module.

[0016] Furthermore, the drainage device also includes a backup pumping device, and the controller also includes a fifth comparator, a third timer, a sixth comparator, and a second AND gate circuit unit. The input end of the fifth comparator is connected to the second liquid level sensor, the output end of the fifth comparator is connected to the timing input end of the third timer and the input end of the second AND gate circuit unit, the input end of the sixth comparator is connected to the output end of the third timer, the output end of the sixth comparator is connected to the input end of the second AND gate circuit unit, and the output end of the second AND gate circuit unit is connected to the drive circuit of the backup pumping device;

[0017] The controller further includes a fifth input module and a sixth input module. The fifth input module is connected to the reference end of the fifth comparator, and the sixth input module is connected to the reference end of the sixth comparator.

[0018] Furthermore, the alarm includes a second alarm module, and the controller further includes a fourth timer and a seventh comparator, wherein the timing input end of the fourth timer is connected to the output end of the second AND gate circuit unit, the input end of the seventh comparator is connected to the output end of the fourth timer, and the output end of the seventh comparator is connected to the second alarm module;

[0019] The controller further includes a seventh input module connected to a reference terminal of a seventh comparator.

[0020] Furthermore, a filter is provided between the water outlet of the pumping device and the drainage ditch.

[0021] Furthermore, the alarm includes a local alarm and a signal transmitter.

[0022] Furthermore, the drainage device also includes a memory, and the memory is connected to the controller.

[0023] Furthermore, the drainage device also includes a power supply device, which is used to supply power to the drainage device.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) By using the first liquid level sensor, the first comparator, the second comparator and the first timer, the pumping device can be triggered to operate after the liquid level in the water collection well reaches the drainage level to drain water, thereby realizing automatic drainage of the substation.

[0026] (2) The third comparator and the second timer can be used to monitor the time it takes for the liquid level in the water collection well to reach the drainage level. When the liquid level in the water collection well is higher than the drainage level for a long time, the regulating circuit of the pumping device is triggered, thereby realizing adaptive adjustment of the pumping volume of the pumping device.

[0027] (3) The fourth comparator, the flow sensor and the first alarm module can be used to determine the actual working status of the pumping device, narrow the fault location range, improve the reliability of the drainage device, and realize automatic abnormal alarm.

[0028] (4) By using the second liquid level sensor, the fifth comparator, the third timer, and the sixth comparator, the backup pumping device can be triggered to operate when the liquid level in the cable trench reaches the emergency water level to drain water, thereby realizing automatic drainage of the substation and ensuring the reliability of the drainage device.

[0029] (5) The seventh comparator, the fourth timer and the second alarm module can be used to monitor the time it takes for the liquid level in the cable trench to reach the emergency water level. When the liquid level in the cable trench is higher than the emergency water level for a long time, the second alarm module will alarm, thereby narrowing the fault location range, improving the reliability of the drainage device, and realizing automatic abnormal alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 This is the logic control diagram of the controller;

[0032] Reference numerals: 1, cable trench, 2, water collection well, 3, drainage ditch, 4, first liquid level sensor, 5, second liquid level sensor, 6, flow sensor, 7, alarm, 7-1, first alarm module, 7-2, second alarm module, 8, controller, 9, pumping device, 9-1, driving circuit of pumping device, 9-2, regulating circuit of pumping device, 10, backup pumping device, 10-1, driving circuit of backup pumping device, 11, first AND gate circuit unit, 12, second AND gate circuit unit;

[0033] C1, first comparator, C2, second comparator, C3, third comparator, C4, fourth comparator, C5, fifth comparator, C6, sixth comparator, C7, seventh comparator, I1, first input module, I2, second input module, I3, third input module, I5, fifth input module, I6, sixth input module, I7, seventh input module, T1, first timer, T2, second timer, T3, third timer, T4, fourth timer. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0035] In the drawings, components with identical structures are denoted by the same reference numerals, and components with similar structures or functions are denoted by similar reference numerals. The size and thickness of each component shown in the drawings are arbitrary and are not limited by the present invention. For clarity, some components in the drawings are exaggerated.

[0036] In the description of the embodiments of the present application, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] Example 1:

[0040] A substation drainage device, such as Figure 1 As shown, it includes a cable trench 1, a water collection well 2, a drainage ditch 3, a first liquid level sensor 4, a second liquid level sensor 5, a flow sensor 6, an alarm 7 and a controller 8; the cable trench 1 is communicated with the water collection well 2, and a pumping device 9 is provided in the water collection well 2, and the water outlet of the pumping device 9 is communicated with the drainage ditch 3 through a drainage pipe; the first liquid level sensor 4 is installed in the water collection well 2, and is used to detect the liquid level height of the water collection well 2, the second liquid level sensor 5 is installed in the cable trench 1, and is used to detect the liquid level height of the cable trench 1, and the flow sensor 6 is installed on the drainage pipe, and is used to detect whether there is liquid flowing in the drainage pipe; the alarm 7 is used to issue an alarm message; the controller 8 is connected to the first liquid level sensor 4, the second liquid level sensor 5, the flow sensor 6, the alarm 7 and the pumping device 9.

[0041] The controller 8 includes a first comparator C1, a first timer T1, a second comparator C2 and a first AND gate circuit unit 11. The input end of the first comparator C1 is connected to the first liquid level sensor 4, the output end of the first comparator C1 is connected to the timing input end of the first timer T1 and the input end of the first AND gate circuit unit 11, the input end of the second comparator C2 is connected to the output end of the first timer T1, the output end of the second comparator C2 is connected to the input end of the first AND gate circuit unit 11, and the output end of the first AND gate circuit unit 11 is connected to the drive circuit of the pumping device 9; the controller 8 also includes a first input module I1 and a second input module I2. The first input module I1 is connected to the reference end of the first comparator C1, and the second input module I2 is connected to the reference end of the second comparator C2.

[0042] The working principle of automatic drainage in this application is:

[0043] The accumulated water in the cable trench 1 flows into the water collection well 2. The first liquid level sensor 4 is installed in the water collection well 2 to detect the liquid level height of the water collection well 2 and compare the liquid level height data with the set drainage water level (the reference value of the first comparator C1). When the liquid level height data is greater than the drainage water level, the first comparator C1 outputs a signal to the first timer T1 and the first AND gate circuit unit 11, and the first timer T1 starts timing. When the timing time of the first timer T1 is greater than the preset waiting time (the reference value of the second comparator C2, such as 20s), the second comparator C2 outputs a signal to the first AND gate circuit unit 11. Since the outputs of the first comparator C1 and the second comparator C2 are both "true" at this time, the output of the first AND gate circuit unit 11 is "true", so that the driving circuit of the pumping device 9 works, and the driving circuit controls the pumping device 9 to start and start pumping water, discharging the water in the water collection well 2 into the drainage ditch 3. It is understandable that the first timer T1 is triggered by the output of the first comparator C1, and when the liquid level data of the water collection well 2 is no greater than the drainage water level, the first timer T1 is reset. In this application, in addition to considering the time when the liquid level in the water collection well 2 reaches the drainage water level, the duration of the liquid level exceeding the drainage water level is also considered to avoid false triggering when the liquid level fluctuates near the drainage water level, thereby ensuring that the pumping device 9 is not frequently started, stopped, or adjusted.

[0044] The controller 8 includes a second timer T2 and at least one third comparator C3. The timing input end of the second timer T2 is connected to the output end of the first AND gate circuit unit 11, the output end of the second timer T2 is connected to the input end of the third comparator C3, and the output end of the third comparator C3 is connected to the adjustment circuit, which is used to adjust the water pumping amount of the pumping device 9; the controller 8 also includes at least one third input module I3, and the third input module I3 is connected to the reference end of the third comparator C3 in a one-to-one correspondence.

[0045] When the pumping device 9 is started, the second timer T2 starts timing. When the timing time of the second timer T2 is greater than the set extraction waiting time (the reference value of the third comparator C3, such as 10 minutes), it means that the pumping device 9 has not yet lowered the liquid level in the water collection well 2 to below the drainage water level. This may be because the precipitation is too large and the pumping device 9 cannot complete the drainage in time. Therefore, the third comparator C3 outputs a signal to the regulating circuit of the pumping device 9, and the regulating circuit increases the pumping volume of the pumping device 9. Among them, the pumping device 9 uses a water pump with adjustable speed, or multiple water pumps. The regulating circuit is a corresponding signal output current for changing the speed of the water pump, or a corresponding drive circuit for starting multiple water pumps. It can be understood that the second timer T2 is triggered by the output of the first AND gate circuit unit 11. When the output of the first comparator C1 or the second comparator C2 changes, the output of the first AND gate circuit unit 11 is "no", and the second timer T2 is reset. For a water pump with multi-stage adjustable speed and multiple start-stoppable water pumps, multiple third comparators C3 can be designed, and the output of each third comparator C3 corresponds to a speed gear or the number of water pump starts and stops.

[0046] The alarm 7 includes a first alarm module 7-1, and the controller 8 also includes a fourth comparator C4. The input end of the fourth comparator C4 is connected to the flow sensor 6, the reference end of the fourth comparator C4 is connected to the output end of the first AND gate circuit unit 11, and the output end of the fourth comparator C4 is connected to the first alarm module 7-1.

[0047] The primary purpose of providing flow sensor 6 is to detect whether liquid is flowing in the drainpipe. This, combined with the output of first AND gate circuit unit 11, determines the actual start / stop status of pumping device 9. If the output of first AND gate circuit unit 11 is "true" and the output of flow sensor 6 is "false," it indicates that pumping device 9 is not functioning properly, enabling a timely alarm to be issued via first alarm module 7-1. It is understood that flow sensor 6 can be implemented using a pressure sensor, flow sensor, water level sensor, or the like, in conjunction with logic circuits and comparators, thereby outputting a logical value indicating whether liquid is flowing in the drainpipe.

[0048] The drainage device also includes a backup pumping device 10, and the controller 8 also includes a fifth comparator C5, a third timer T3, a sixth comparator C6 and a second AND gate circuit unit 12. The input end of the fifth comparator C5 is connected to the second liquid level sensor 5, the output end of the fifth comparator C5 is connected to the timing input end of the third timer T3 and the input end of the second AND gate circuit unit 12, the input end of the sixth comparator C6 is connected to the output end of the third timer T3, the output end of the sixth comparator C6 is connected to the input end of the second AND gate circuit unit 12, and the output end of the second AND gate circuit unit 12 is connected to the drive circuit of the backup pumping device 10; the controller 8 also includes a fifth input module I5 and a sixth input module I6, the fifth input module I5 is connected to the reference end of the fifth comparator C5, and the sixth input module I6 is connected to the reference end of the sixth comparator C6.

[0049] In addition to relying on the above-mentioned first liquid level sensor 4, first comparator C1, second comparator C2 and first timer T1 for automatic drainage, the present application also designs a backup pumping device 10, and the corresponding fifth comparator C5, sixth comparator C6 and third timer T3 to cooperate with the second sensor to achieve drainage.

[0050] When the pumping device 9 fails and cannot drain water, or when the rainfall is so heavy that the pumping device 9 cannot complete drainage in time, the liquid level in the water collection well 2 continues to rise. On the one hand, the third comparator C3 and the regulating circuit are used to increase the pumping volume of the pumping device 9. At the same time, the first alarm module 7-1 will also sound an alarm, indicating that the liquid level in the water collector has been greater than the drainage level for a long time, which may be dangerous. As the situation continues to deteriorate, the water collection well 2 fills up, and water begins to accumulate in the cable trench 1. When the measurement data from the second liquid level sensor 5 exceeds the set emergency water level (the reference value of the fifth comparator C5), the fifth comparator C5 outputs a signal to the third timer T3 and the second AND gate circuit unit 12, causing the third timer T3 to start timing. When the timing of the third timer T3 exceeds the preset emergency judgment time (the reference value of the sixth comparator C6, such as 15 seconds), the sixth comparator C6 outputs a signal to the second AND gate circuit unit 12. Since the outputs of the fifth and sixth comparators C5 and C6 are both "true" at this time, the output of the second AND gate circuit unit 12 is also "true", thereby activating the drive circuit of the backup pumping device 10, which controls the backup pumping device 10 to start pumping water, thereby alleviating drainage pressure. It can be understood that the third timer T3 is triggered by the output of the fifth comparator C5. When the measurement data from the second liquid level sensor 5 is no longer than the emergency water level, the third timer T3 is reset. Similarly, in this application, in addition to considering the liquid level in the cable trench 1 reaching the emergency water level, the duration that the liquid level is greater than the emergency water level is also considered to avoid accidental touch-off when the liquid level fluctuates near the emergency water level, thereby ensuring that the pumping device 9 will not be frequently started and stopped or adjusted.

[0051] The alarm 7 includes a second alarm module 7-2, and the controller 8 also includes a fourth timer T4 and a seventh comparator C7. The timing input end of the fourth timer T4 is connected to the output end of the second AND gate circuit unit 12, the input end of the seventh comparator C7 is connected to the output end of the fourth timer T4, and the output end of the seventh comparator C7 is connected to the second alarm module 7-2; the controller 8 also includes a seventh input module I7, and the seventh input module I7 is connected to the reference end of the seventh comparator C7.

[0052] When the backup pumping device 10 is activated, the fourth timer T4 begins timing. When the timing of the fourth timer T4 exceeds the set emergency extraction time (the reference value of the third comparator C3, such as 5 minutes), it indicates that even with the addition of the backup pumping device 10, the pumping devices 9 and the backup pumping device 10 have not lowered the liquid level in the cable trench 1 below the emergency water level, thereby enabling a timely alarm to be issued by the second alarm module 7-2. It is understood that the fourth timer T4 is triggered by the output of the second AND gate circuit unit 12. When the output of the fifth comparator C5 or the sixth comparator C6 changes, the output of the second AND gate circuit unit 12 is "no", and the fourth timer T4 is reset.

[0053] The input module may be a key or a touch screen, so that the reference value of the comparator can be input.

[0054] The alarm 7 includes a local alarm and a signal transmitter. That is, the first alarm module 7-1 and the second alarm module 7-2 can both locally and remotely alarm. The local alarm can include an audible and visual alarm, while the signal transmitter can be a GPRS wireless communication module, a 4 / 5G wireless communication module, etc., so as to remotely send the alarm information to the staff's terminal.

[0055] The drainage device also includes a memory, which is connected to the controller 8. The memory can store various types of information during the operation of the drainage device as needed, such as the measurement data of the first liquid level sensor 4, the second liquid level sensor 5, and the flow sensor 6, the output of the above-mentioned comparator and the second timer T2, the alarm information of the above-mentioned alarm 7, and the start and stop, speed information of the pumping device 9 and the backup pumping device 10.

[0056] A filter is provided between the water outlet of the pumping device 9 and the drain ditch 3 to filter and prevent debris from entering the pumping device 9 when the drain ditch 3 flows back.

[0057] The drainage system also includes a power supply, which can be a battery. This battery can be connected to a photovoltaic power generation device, which provides power when the battery is low. The battery can also be connected to a power ring, which is attached to a cable and outputs voltage through electromagnetic induction. Of course, corresponding voltage stabilizers, transformers, rectifiers, and other devices are required, but I will not elaborate on them here. Relevant practitioners will understand.

[0058] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A substation drainage device, characterized in that: It includes a cable trench, a water collection well, a drainage ditch, a first liquid level sensor, a second liquid level sensor, a flow sensor, an alarm and a controller; The cable trench is connected to a water collection well, a water pumping device is provided in the water collection well, and the water outlet of the water pumping device is connected to the drainage ditch through a drainage pipe; The first liquid level sensor is installed in the water collection well to detect the liquid level height of the water collection well. The second liquid level sensor is installed in the cable trench to detect the liquid level height of the cable trench. The flow sensor is installed on the drainage pipe to detect whether there is liquid flowing in the drainage pipe. The alarm is used to issue an alarm message; The controller is connected to the first liquid level sensor, the second liquid level sensor, the flow sensor, the alarm and the pumping device; The controller includes a first comparator, a first timer, a second comparator and a first AND gate circuit unit, wherein the input end of the first comparator is connected to the first liquid level sensor, the output end of the first comparator is connected to the timing input end of the first timer and the input end of the first AND gate circuit unit, the input end of the second comparator is connected to the output end of the first timer, the output end of the second comparator is connected to the input end of the first AND gate circuit unit, and the output end of the first AND gate circuit unit is connected to the driving circuit of the pumping device; The controller further includes a first input module and a second input module, wherein the first input module is connected to the reference terminal of the first comparator, and the second input module is connected to the reference terminal of the second comparator; The alarm includes a first alarm module, and the controller further includes a fourth comparator, wherein the input end of the fourth comparator is connected to the flow sensor, the reference end of the fourth comparator is connected to the output end of the first AND gate circuit unit, and the output end of the fourth comparator is connected to the first alarm module; The drainage device also includes a backup pumping device, and the controller also includes a fifth comparator, a third timer, a sixth comparator, and a second AND gate circuit unit, wherein the input end of the fifth comparator is connected to the second liquid level sensor, the output end of the fifth comparator is connected to the timing input end of the third timer and the input end of the second AND gate circuit unit, the input end of the sixth comparator is connected to the output end of the third timer, the output end of the sixth comparator is connected to the input end of the second AND gate circuit unit, and the output end of the second AND gate circuit unit is connected to the drive circuit of the backup pumping device; The controller further includes a fifth input module and a sixth input module. The fifth input module is connected to the reference end of the fifth comparator, and the sixth input module is connected to the reference end of the sixth comparator.

2. A substation drainage device according to claim 1, characterized in that: The controller includes a second timer and at least one third comparator, wherein the timing input of the second timer is connected to the output of the first AND gate circuit unit, the output of the second timer is connected to the input of the third comparator, and the output of the third comparator is connected to the regulating circuit, and the regulating circuit is used to adjust the water pumping amount of the pumping device; The controller further includes at least one third input module, and the third input module is connected to the reference terminal of the third comparator in a one-to-one correspondence.

3. A substation drainage device according to claim 1, characterized in that: The alarm device includes a second alarm module, and the controller further includes a fourth timer and a seventh comparator, wherein the timing input end of the fourth timer is connected to the output end of the second AND gate circuit unit, the input end of the seventh comparator is connected to the output end of the fourth timer, and the output end of the seventh comparator is connected to the second alarm module; The controller further includes a seventh input module connected to a reference terminal of a seventh comparator.

4. A substation drainage device according to claim 1, characterized in that: A filter screen is provided between the water outlet of the pumping device and the drainage ditch.

5. The substation drainage device according to claim 1, characterized in that: The alarm includes a local alarm and a signal transmitter.

6. A substation drainage device according to claim 1, characterized in that: The drainage device further includes a memory connected to the controller.

7. The substation drainage device according to claim 1, characterized in that: The drainage device further includes a power supply device, which is used to supply power to the drainage device.

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