CN105442689A - Automatic drainage method and device of power cable trench - Google Patents

Abstract

The present invention relates to a method and device for automatic drainage of electric cable trenches. The method is as follows: step 1, arrange a water suction pipe in the cable trench, and connect the water suction pipe to a water pump; The detection device for detecting the water level; step 3, the signal detected by the detection device is sent to the controller, and the controller sends the control signal to the contactor, and the control part of the contactor is connected in series on the power supply circuit of the pump; step 4, when the detection device When it is detected that the water level in the cable trench is higher than the set high water level, the controller starts the water pump through the contactor; step 5, when the water pump continues to draw water, and the detection device detects that the water level of the accumulated water drops to the predetermined low water level, the controller passes the contactor The device stops the water pump. The invention relates to an automatic drainage method and device for electric cable trenches, which can automatically discharge accumulated water in the cable trenches.

Description

Method and device for automatic drainage of power cable trench

technical field

The invention relates to a drainage method and a device, in particular to a method and a device for pumping and draining accumulated water in a power cable trench.

Background technique

At present, in the rainy summer season, due to the large amount of rainwater entering the power cable trench, it is easy to cause a short circuit fault and cause a large-scale power outage. When it is found that rainwater is accumulated in a certain cable trench, the pump is immediately discharged to pump water to prevent the accumulation of rainwater from causing short-circuit accidents; Factors cause a large amount of rainwater to accumulate in a short period of time, which is still easy to cause short-circuit accidents, thereby affecting the power supply guarantee of the corresponding area.

Contents of the invention

The object of the present invention is to overcome the above disadvantages and provide an automatic drainage method and device for power cable trenches that can automatically drain the accumulated water in the cable trenches.

The purpose of the present invention is achieved like this:

The present invention is a method for automatic drainage of electric cable trenches, the method being:

Step 1. Arrange the suction pipe in the cable trench, connect the suction pipe to the pump, and insert the open end of the suction pipe into the bottom of the cable trench to drain the accumulated water in the cable trench;

Step 2, the side wall in the cable trench is provided with a detection device for detecting the water level;

Step 3, the signal detected by the detection device is sent to the controller, and the controller sends the control signal to the contactor, and the control part of the contactor is connected in series with the power supply circuit of the pump;

Step 4. When the detection device detects that the water level in the cable trench is higher than the set high water level, the controller starts the water pump through the contactor, thereby pumping the accumulated water in the cable trench to the outside of the trench;

Step 5. When the water pump continues to pump water and the detection device detects that the accumulated water level drops to a predetermined low water level, the controller stops the water pump through the contactor.

The present invention is an automatic drainage device for electric cable trenches. The device includes a water suction pipe installed in the cable trench. A detection device for detecting the water level is provided on the inner side wall, the detection device is connected to a controller, the controller is connected to a contactor, and the control part of the contactor is connected in series to the power supply circuit of the water pump.

The invention relates to an automatic drainage device for a power cable ditch. The detection device is provided with an upper and a lower detection device. The detection device at the upper part is used for detecting high water level, and the detection device at the lower part is used for detecting low water level.

The invention relates to an automatic drainage device for a power cable ditch, wherein the detection device is a probe or a water level sensor.

Compared with prior art, the beneficial effect of the present invention is:

The invention detects the water level in the cable trench in real time through the detection device, and when it detects that the water level is higher than the set water level, the water pump is immediately started to pump out the accumulated water in the cable trench, so as to prevent the short circuit caused by the accumulated water in the cable trench, which is effective The power supply of surrounding users is guaranteed.

Description of drawings

Fig. 1 is a circuit block diagram of an automatic drainage of a power cable trench according to the present invention.

detailed description

Referring to Fig. 1, a kind of electric cable ditch automatic drainage method that the present invention relates to, described method is:

Step 1. Arrange the suction pipe in the cable trench, connect the suction pipe to the pump, and insert the open end of the suction pipe into the bottom of the cable trench to drain the accumulated water in the cable trench;

Step 2, the side wall in the cable trench is provided with a detection device for detecting the water level;

Step 3, the signal detected by the detection device is sent to the controller, and the controller sends the control signal to the contactor, and the control part of the contactor is connected in series with the power supply circuit of the pump;

Step 4. When the detection device detects that the water level in the cable trench is higher than the set high water level, the controller starts the water pump through the contactor, thereby pumping the accumulated water in the cable trench to the outside of the trench;

Step 5. When the water pump continues to pump water and the detection device detects that the accumulated water level drops to a predetermined low water level, the controller stops the water pump through the contactor, so as to avoid heat damage caused by the water pump working for a long time;

The present invention is an automatic drainage device for electric cable trenches. The device includes a water suction pipe installed in the cable trench. A detection device for detecting the water level is provided on the inner side wall, the detection device is connected to a controller, the controller is connected to a contactor, and the control part of the contactor is connected in series to the power supply circuit of the water pump;

Preferably, the detection device is provided with two upper and lower detection devices, the detection device at the upper part is used to detect high water level, and the detection device at the lower part is used to detect low water level; further, the detection device is a probe or a water level sensor;

In addition: it should be noted that the above specific implementation is only an optimization solution of this patent, and any changes or improvements made by those skilled in the art based on the above ideas are within the scope of protection of this patent.

Claims (4)

1. A power cable ditch automatic drainage method, characterized in that: the method is: Step 1. Arrange the suction pipe in the cable trench, connect the suction pipe to the pump, and insert the open end of the suction pipe into the bottom of the cable trench to drain the accumulated water in the cable trench; Step 2, the side wall in the cable trench is provided with a detection device for detecting the water level; Step 3, the signal detected by the detection device is sent to the controller, and the controller sends the control signal to the contactor, and the control part of the contactor is connected in series with the power supply circuit of the pump; Step 4. When the detection device detects that the water level in the cable trench is higher than the set high water level, the controller starts the water pump through the contactor, thereby pumping the accumulated water in the cable trench to the outside of the trench; Step 5. When the water pump continues to pump water and the detection device detects that the accumulated water level drops to a predetermined low water level, the controller stops the water pump through the contactor. 2. An automatic drainage device for electric cable trenches, characterized in that: the device includes a water suction pipe installed in the cable trench, the water suction pipe is connected to a water pump, and the open end of the water suction pipe is inserted into the cable trench At the bottom, the side wall in the cable trench is provided with a detection device for detecting the water level, the detection device is connected to the controller, the controller is connected to the contactor, and the control part of the contactor is connected in series to the power supply of the pump on the loop. 3. An automatic drainage device for power cable trenches as claimed in claim 2, characterized in that: the detection device is provided with two upper and lower detection devices, the detection device located at the upper part is used to detect high water level, and the detection device located at the lower part is used to detect Low water level. 4. An automatic drainage device for power cable trenches according to claim 2, wherein the detection device is a probe or a water level sensor.