CN204858395U - Quick dehydrating unit of cable pit - Google Patents

Abstract

The utility model provides a quick dehydrating unit of cable pit belongs to cable pit dehydrating unit field, including heating plate, water -absorbing material layer, air -blower, humidity transducer and controlling means, heating plate and humidity transducer install in the cable pit, and humidity transducer's signal output part is connected to controlling means, and controlling means's signal output part is connected to air -blower and heating plate, can reduce the humidity in the cable pit.

Description

Quick dehumidification device for cable trench

technical field

The utility model provides a fast dehumidification device for cable trenches, which belongs to the field of dehumidification devices for cable trenches.

Background technique

In the traditional construction process of substations, the cable trench ports are often sealed with fireproof materials, which cannot be very tight because they are manually sealed. In the season with more rainfall, rainwater often flows into the cable trench. Since the cable trench is a relatively closed space, once rainwater enters it, the humidity inside the cable trench will be too high, and the cables inside the cable trench will be severely corroded over time, seriously endangering the operation safety of the power grid.

Utility model content

The purpose of the utility model is to provide a quick dehumidification device for a cable trench, which can reduce the humidity in the cable trench.

The quick dehumidification device for the cable trench described in the utility model includes a heating plate, a water-absorbing material layer, a blower, a humidity sensor and a control device. The heating plate and the humidity sensor are installed in the cable trench, and the signal output end of the humidity sensor is connected to the control device. The signal output of the control unit is connected to the blower and the heating plate.

In the quick dehumidification device for the cable trench, the wind blown by the blower can enter the cable trench after being dehumidified by the water-absorbing material layer to dry the moisture in the cable trench. When the humidity sensor detects that the humidity in the cable trench is high, it will send to the control The device sends an analog signal of humidity, and the control device controls the wind speed of the blower according to the signal strength, so that the blower blows air into the cable trench, and at the same time, the control device controls the heating plate to be connected, so that the wind blown by the blower will pass through the heating plate and become Hot air can better evaporate the moisture in the cable trench, thereby reducing the humidity of the cable trench.

The quick dehumidification device for the cable trench is provided with electric louvers, and the control end of the electric louvers is connected to the control device. The electric louver is installed at the other end of the cable trench. When not in use, the electric louver is closed. When the blower is started, the control device will control the electric louver to open, so that the wind blown by the blower evaporates the water and is taken out by the electric louver. When not in use , the electric louvers are closed to avoid the entry of moisture.

Compared with the prior art, the utility model has the following beneficial effects:

In the quick dehumidification device for the cable trench, the wind blown by the blower can enter the cable trench after being dehumidified by the water-absorbing material layer to dry the moisture in the cable trench. When the humidity sensor detects that the humidity in the cable trench is high, it will send to the control The device sends an analog signal of humidity, and the control device controls the wind speed of the blower according to the signal strength, so that the blower blows air into the cable trench, and at the same time, the control device controls the heating plate to be connected, so that the wind blown by the blower will pass through the heating plate and become Hot air can better evaporate the moisture in the cable trench, thereby reducing the humidity of the cable trench.

The electric louvers described above are installed at the other end of the cable trench. When not in use, the electric louvers are closed. When the blower starts, the control device will control the electric louvers to open, so that the wind blown by the blower evaporates the water, and the electric louvers When not in use, the electric shutters are closed to prevent moisture from entering.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. heating sheet; 2. water-absorbing material layer; 3. blower; 4. humidity sensor; 5. control device; 6. cable trench; 7. electric louver.

Detailed ways

Below in conjunction with the utility model, the utility model embodiment is further described:

Embodiment 1: As shown in Figure 1, the cable trench quick dehumidification device described in the utility model includes a heating sheet 1, a water-absorbing material layer 2, a blower 3, a humidity sensor 4 and a control device 5, a heating sheet 1 and a humidity sensor 4 Installed in the cable trench 6 , the signal output end of the humidity sensor 4 is connected to the control device 5 , and the signal output end of the control device 5 is connected to the blower 3 and the heating sheet 1 .

Embodiment 2: On the basis of the structure described in Embodiment 1, an electric shutter 7 is provided, and the control end of the electric shutter 7 is connected to the control device 5 .

Claims (2)

1. A quick dehumidification device for a cable trench, characterized in that it comprises a heating sheet (1), a water-absorbing material layer (2), a blower (3), a humidity sensor (4) and a control device (5), and the heating sheet (1) and the humidity sensor (4) are installed in the cable trench (6), the signal output end of the humidity sensor (4) is connected to the control device (5), and the signal output end of the control device (5) is connected to the blower fan (3) and the heating plate (1). 2. The rapid dehumidification device for cable trenches according to claim 1, characterized in that electric louvers (7) are provided, and the control end of the electric louvers (7) is connected to the control device (5).