CN103647220A - Transformer substation outdoor terminal box - Google Patents

Abstract

The invention discloses a transformer substation outdoor terminal box. The transformer substation outdoor terminal box comprises a box bin and a box door. A dehumidifying circulating dryer, a condensation device, a heater and a temperature and humidity monitoring device are arranged in the box bin. The condensation device comprises a condensation chamber, a condensation sensor and a condensation controller. The dehumidifying circulating dryer is communicated with the condensation chamber. The heater and the condensation sensor are connected with the condensation controller separately. According to the transformer substation outdoor terminal box of the invention, damp air in the box bin is extracted into the condensation chamber for gas-water separator so as to realize the effect of air drying in the box bin.

Description

A substation outdoor terminal box

technical field

The invention relates to an outdoor terminal box of a substation, and relates to a power system.

Background technique

The internal space of the terminal box is very compact. In order to ensure the internal insulation level in high-humidity areas and ensure the reliable operation of the device, higher requirements are put forward for the moisture-proof and anti-condensation inside the box. my country has used automatic heating and dehumidification controllers to prevent condensation in terminal boxes for more than ten years. There are also some problems in regional applications. For example, in the rainy season in the south, sometimes the air humidity inside the terminal box is high, and there is even condensation in the terminal box. The degree of condensation has not been reached, or the condensation sensor has been corroded by dust and gas in the air for a long time, which affects the sensitivity of the sensor, and the condensation controller cannot start the heater in time, resulting in the failure of the condensation controller. threat to security.

Contents of the invention

The technical problem to be solved by the invention is an adjustable outdoor terminal box of a substation that can adapt to different equipment.

In order to solve the above technical problems, the present invention adopts the following technical scheme, an outdoor terminal box of a substation, including a cabinet and a door, and the cabinet is equipped with a dehumidification circulation dryer, a condensation device, a heater and a temperature and humidity monitoring The condensation device includes a condensation chamber, a condensation sensor and a condensation controller, the dehumidification circulating dryer is connected to the condensation chamber, and the heater and the condensation sensor are respectively connected to the condensation controller .

Preferably, a fan connected to a temperature and humidity monitor is also provided in the cabinet, and an air passage is provided on the cabinet.

Preferably, a metal mesh is arranged in the air channel.

Preferably, the edge of the opening of the cabinet is provided with a ventilating plate, and the ventilating plate is provided with several grilles.

Preferably, a rainproof cover is provided above the ventilation panel and above the cabinet.

Preferably, the distance between adjacent grids is 1-3 cm.

Preferably, a metal grid is also arranged between the grids.

The invention relates to an outdoor terminal box of a substation. The humid air in the box is pumped into a condensation chamber through a dehumidification circulation dryer to separate the air and water, so as to achieve the effect of drying the air inside the box.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is a schematic structural diagram of an outdoor terminal box of a substation according to the present invention.

Detailed ways

As shown in Figure 1, it is an outdoor terminal box of a substation of the present invention, including a cabinet 1 and a cabinet door 12, and the cabinet is equipped with a dehumidification circulation dryer 7, a condensation device, a heater 11 and temperature and humidity monitoring Condenser 14, said dew device includes dew chamber 8, dew sensor 9 and dew controller 10, said dehumidification circulating dryer 7 communicates with dew chamber 8, heater 11, dew sensor 9 respectively It is connected with the condensation controller 10. The humid air in the cabinet 1 is pumped into the condensation chamber 8 through the dehumidification circulation dryer 7 to separate the air from the water vapor in the air. 7 is collected into the condensation chamber 8, and under the control of the condensation controller 10, it gradually condenses into water drops or ice crystals. Specifically, the temperature and humidity monitor 14 monitors the temperature and humidity. A. When the natural temperature is greater than 20°C, the water vapor will gradually condense into water droplets in the condensation chamber 8, and the water droplets will gather into the accumulated water drainage window and be discharged out of the cabinet 1; B. When the natural temperature is less than 20°C, the water vapor gradually condenses into ice crystals in the condensation chamber 8, which is the process of accumulating frost. Every 120 minutes of continuous frost accumulation, the cabinet dehumidifier will automatically defrost for 10 minutes, and discharge it out of the cabinet 1 in the state of liquid water; C. When the humidity in the cabinet 1 is higher than 55%RH, the cabinet The dehumidifier is automatically put into operation; when the humidity is lower than 40%RH, it will automatically stop dehumidification. When the natural temperature is greater than 30°C and the ambient humidity is greater than 80% RH, the amount of water discharged from the humid air in 24 hours is about 50ml-350ml.

A fan 6 connected to a temperature and humidity monitor 14 is also provided in the cabinet 1 , and an air duct 5 is provided on the cabinet. Adding the blower fan 6 and the air passage can further increase the fluidity of the air in the cabinet 1 and achieve the effect of further keeping the inside of the cabinet 1 dry.

The edge of the opening of the cabinet 1 is provided with a ventilating plate 2 , and several grilles 3 are provided on the ventilating plate 2 . The grids 3 are evenly distributed on the ventilation plate 2, and the distance between the adjacent grids 3 is 1-3 cm, which can not only ventilate, but also prevent small animals from entering. A metal mesh (not shown in the figure) is arranged inside the air channel 5 , and a metal mesh 4 is arranged between the grilles 3 , and the metal mesh and the metal mesh 4 are used to prevent small animals from entering.

Above the ventilation panel 2 and above the cabinet 1, a rainproof cover 13 is provided to play a rainproof effect.

Claims (7)

1. a transformer station outdoor terminal box, comprise bin (1) and chamber door (12), it is characterized in that: in described bin, be provided with dehumidifying circular dryer (7), condensation device, heater (11) and temperature humidity monitor (14), described condensation device comprises condensation chamber (8), condensation transducer (9) and condensation controller (10), described dehumidifying circular dryer (7) is connected with condensation chamber (8), and heater (11), condensation transducer (9) are connected with described condensation controller (10) respectively.

2. a kind of transformer station outdoor terminal box according to claim 1, is characterized in that: in described bin (1), be also provided with the blower fan (6) being connected with temperature humidity monitor (14), described bin is provided with airway (5).

3. a kind of transformer station outdoor terminal box according to claim 2, is characterized in that: described airway is provided with wire netting in (5).

4. a kind of transformer station outdoor terminal box according to claim 1, is characterized in that: the edge of opening of described bin (1) is provided with vent board (2), and described vent board (2) is provided with some grids (3).

5. a kind of transformer station outdoor terminal box according to claim 4, is characterized in that: the top of the top of described vent board (2) and described bin (1) is equipped with rain cover (13).

6. a kind of transformer station outdoor terminal box according to claim 4, is characterized in that: the distance between adjacent described grid (3) is 1～3cm.

7. a kind of transformer station outdoor terminal box according to claim 5, is characterized in that: between described grid (3), be also provided with metal graticule mesh (4).

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