CN203415854U - Switch cabinet-used moistureproof condensation leading device - Google Patents

Abstract

The utility model discloses a moisture-proof and condensation-inducing device for a switch cabinet, which comprises a moisture-proof and condensation-inducing part arranged in the switch cabinet, a temperature and humidity sensor and a controller shell arranged outside the switch cabinet. The moisture-proof and condensation-inducing part includes a heater and an installation The first fan, condenser and water collection box on the back of the heater, the condenser is arranged between the heater and the first fan, the water collection box is arranged under the condenser, and the bottom of the water collection box is provided with condensed water connected to it Lead-out pipe; the controller and the power supply connected to the controller are installed in the controller shell, the temperature and humidity sensor is connected to the input end of the controller, the condenser and the first fan are connected to the output end of the controller, and the heating The device is connected to the output terminal of the controller through a temperature control switch. Through the working mechanism of active drainage, heating and dehumidification, the utility model effectively prevents safety hazards such as aging of equipment in the cabinet, reduction of insulation strength, breakdown of secondary terminals, mildew of materials and corrosion of steel structural parts, and ensures safe operation of the power grid.

Description

Moisture-proof condensation device for switchgear

technical field

The utility model belongs to the technical field of switch cabinets, in particular to a moisture-proof condensation induction device for switch cabinets.

Background technique

The switchgear is a kind of closed electrical equipment. When the absolute humidity inside the switchgear reaches a certain level, condensation will occur. The condensation will cause creepage and flashover accidents, and it will also cause the equipment in the cabinet to age and reduce the insulation strength. , secondary terminal breakdown, material mildew and corrosion of steel structural parts and other safety hazards, which in turn lead to unsafe operation of the power grid. These incidents generally occur in the following situations: First, the humidity in the area is high, the weather temperature changes greatly, the bottom of the switch cabinet is wet, and some cable trenches even have water; the second is that some switch cabinets are in the basement, with high humidity and special internal temperature. The temperature is close to the ground and lower than the ambient temperature; the third is that some switch cabinets are temporarily out of operation, and the internal small ambient temperature is lower than the surrounding ambient temperature, and condensation is easily formed on the surface. Put it into operation, and accidents will follow.

In order to ensure the safe operation of the power grid system, the long life and safe and effective use of the switchgear, three methods are usually used to prevent moisture inside the switchgear: physical methods, condensation sensor-activated heating methods, and temperature sensor-activated heating methods. The physical method of moisture-proof treatment is usually to add a moisture-proof desiccant in the switchgear. The effect is not obvious, and it can only play a moisture-proof and dry effect on the place where it is placed, and the moisture-proof desiccant needs to be replaced frequently. The way of starting the heating with the condensation sensor is to rely on the condensation sensor to collect the condensation information in the switch cabinet. When the condensation in the switch cabinet is about to start, start the heating plate to increase the temperature in the switch cabinet and prevent condensation; this method has the following Disadvantages: (1) Heating can only be driven when condensation occurs; (2) The temperature of each point in the cabinet is different, and the condensation point is different, so it is difficult to choose the model and installation position of the condensation sensor; (3) Moisture in the switch cabinet, such as There is a temperature difference, and moisture will condense; (4) It is difficult to reduce the absolute humidity of the switchgear by treating the symptoms but not the root cause. Using the temperature sensor to start the heating method is to control the heating through the temperature sensor to prevent condensation. Although it solves the disadvantage that the heating can only be driven when condensation occurs, it still solves the symptoms but not the root cause; the specific performance is: (1) It cannot be solved fundamentally The problem of dampness in the switchgear is because the absolute water content in the switchgear has not decreased, or even increased; (2) Because it is mainly for prevention, condensation will form in the switchgear once a temperature difference is formed; (3) High-power Heating will accelerate the aging of the surrounding cables and damage the insulation, posing potential safety hazards.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the above-mentioned prior art, and provide a moisture-proof condensation device for switchgear, which has a simple structure, reasonable design, and convenient operation. Through the working mechanism of active drainage, heating and dehumidification, it can effectively prevent Aging of equipment in the cabinet, reduction of insulation strength, breakdown of secondary terminals, mildew of materials and corrosion of steel structural parts and other safety hazards can ensure the safe operation of the power grid, and can be used for moisture-proof drainage of various closed switch cabinets.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a moisture-proof and condensation-inducing device for switchgear, which is characterized in that it includes a moisture-proof and condensation-inducing part and a temperature and humidity sensor arranged in the switchgear and a device installed outside the switchgear The controller casing, the moisture-proof and condensation-inducing part includes a heater, a first fan installed on the back of the heater, a condenser and a water collection box, and the condenser is arranged between the heater and the first fan and is used to condense the first The air in the switch cabinet is blown by a fan. The water collection box is arranged under the condenser and used to collect the condensed water formed by condensation of the condenser. The bottom of the water collection box is provided with a condensed water outlet connected to it. tube; a controller and a power supply connected to the controller and supplying power to the controller are installed in the controller shell, the temperature and humidity sensor is connected to the input end of the controller, and the condenser and the first fan are both It is connected with the output end of the controller, and the heater is connected with the output end of the controller through a temperature control switch.

The above-mentioned moisture-proof and condensation-inducing device for a switchgear is characterized in that a second fan for cooling the interior of the controller is installed in the controller casing, and the second fan is connected to the output end of the controller.

The above-mentioned moisture-proof and condensation-inducing device for switchgear is characterized in that: the first fan is fixed and installed on the back of the heater through long bolts, the number of the long bolts is four, and the four first fans are symmetrically arranged on the On the four corners of the first fan.

The above-mentioned moisture-proof condensation induction device for switchgear is characterized in that: the condenser is installed at the center of the back of the heater.

The above-mentioned moisture-proof condensation induction device for switchgear is characterized in that there is a distance between the first fan and the condenser.

Compared with the prior art, the utility model has the following advantages:

1. The utility model has simple structure, reasonable design and convenient operation.

2. Through the working mechanism of active drainage, heating and dehumidification, the utility model not only ensures that the humid air in the switch cabinet becomes water to be discharged, but also realizes the temperature and humidity adjustment in the switch cabinet, effectively preventing the aging of the equipment in the cabinet, reducing the insulation strength, Safety hazards such as breakdown of secondary terminals, mildew of materials, and corrosion of steel structural parts ensure the safe operation of the power grid.

3. In the utility model, the moisture-proof condensation part and the temperature and humidity sensor are arranged inside the switch cabinet, and the controller shell is arranged outside the switch cabinet, which can reduce the occupied space of the switch cabinet, is easy to install, and can be operated at any time.

4. The utility model is small in size, light in weight, easy to manufacture and convenient to install.

5. The utility model has a wide range of applications, not only for moisture-proof drainage of various closed switch cabinets, but also for moisture-proof drainage of high and low voltage control cabinets, ring network cabinets, outdoor terminal boxes, box-type substations, dry-type substations, etc. .

Below by accompanying drawing and embodiment, the utility model is described in further detail.

Description of drawings

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

Explanation of reference signs:

1—heater; 2—condenser; 3—water collection box;

4—the first fan; 5—long bolts; 6—power supply;

7—controller; 8—second fan; 9—temperature and humidity sensor;

10—controller shell; 11—temperature control switch; 12—condensate water outlet pipe.

Detailed ways

As shown in Figure 1, the utility model includes a moisture-proof and condensation-inducing part and a temperature and humidity sensor 9 arranged in the switch cabinet and a controller housing 10 arranged outside the switch cabinet. The moisture-proof and condensation-inducing part includes a heater 1 and a The first fan 4 on the back of the heater 1, the condenser 2 and the water collection box 3, the condenser 2 is arranged between the heater 1 and the first fan 4 and is used to condense the water in the switch cabinet blown by the first fan 4 air, the water collection box 3 is arranged below the condenser 2 and is used to collect the condensed water formed by condensation of the condenser 2, and the bottom of the water collection box 3 is provided with a condensed water outlet pipe 12 communicating with it; A controller 7 and a power supply 6 that is connected to the controller 7 and supplies power to the controller 7 are installed in the controller housing 10, the temperature and humidity sensor 9 is connected to the input end of the controller 7, and the condenser 2 Both the heater 1 and the first fan 4 are connected to the output end of the controller 7 , and the heater 1 is connected to the output end of the controller 7 through a temperature control switch 11 .

As shown in Figure 1, a second fan 8 for cooling the inside of the controller housing 10 is installed to prevent the controller housing 10 from being overheated and damage the power supply 6; the second fan 8 and the controller The output ends of 7 are connected, and when working, the controller 7 controls the opening and closing of the second fan 8.

As shown in Figure 1, the first fan 4 is fixedly installed on the back of the heater 1 through long bolts 5, the number of the long bolts 5 is four, and the four first fans 4 are symmetrically arranged on the first fan. 4 on the four corners; the connection method is simple and the fixing is reliable.

As shown in FIG. 1 , the condenser 2 is installed at the center of the back of the heater 1 to dissipate heat uniformly and have high efficiency.

As shown in FIG. 1 , there is a distance between the first fan 4 and the condenser 2 , which facilitates the circulation of the air blown to the surface of the condenser 2 by the first fan 4 .

The working principle of the utility model is: when in use, the moisture-proof condensation-inducing part and the temperature and humidity sensor 9 are all installed in the switch cabinet, and the controller shell 10 is installed outside the switch cabinet. When working, the temperature and humidity in the switch cabinet are detected in real time by the temperature and humidity sensor 9. When the humidity value detected by the temperature and humidity sensor 9 reaches the preset humidity value in the controller 7, the controller 7 controls the condenser 2 and the first When the fans 4 are all turned on, the hot air in the switch cabinet is blown to the surface of the condenser 2 by the first fan 4, and the water vapor in the air meets the low-temperature surface, saturated and precipitated to form condensed water, which adheres to the surface of the condenser 2 and accumulates. The water drips into the water collection box 3 after the water drops, and the switch cabinet is led out through the condensed water outlet pipe 12, thereby reducing the absolute water content in the air in the switch cabinet; at the same time, when the temperature value detected by the temperature and humidity sensor 9 reaches the When the preset temperature value is reached, the controller 7 controls the temperature control switch 11 to close, starts the heater 1 to heat the air in the switch cabinet, prevents the condenser 2 from freezing and increases the temperature in the switch cabinet, and reduces the temperature of the switch cabinet under low temperature conditions. There is a risk of condensation and freezing in the cabinet.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural transformations made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (5)

1. a switch cubicle draws solidifying device with protection against the tide, it is characterized in that: comprise that the protection against the tide being arranged in switch cubicle draws solidifying part and Temperature Humidity Sensor (9) and be arranged on the controller housing (10) outside switch cubicle, the first fan (4) that solidifying part comprises heater (1) and is arranged on heater (1) back is drawn in described protection against the tide, condenser (2) and collecting box (3), described condenser (2) is arranged on the air between heater (1) and the first fan (4) and in the switch cubicle blowing for condensation the first fan (4), described collecting box (3) is arranged on the below of condenser (2) and the condensed water forming through condenser (2) condensation for collection, the bottom of described collecting box (3) is provided with coupled logical condensed water extraction tube (12), controller (7) is installed in described controller housing (10) and joins with controller (7) and be the power supply (6) of controller (7) power supply, described Temperature Humidity Sensor (9) joins with the input of controller (7), described condenser (2) and the first fan (4) all join with the output of controller (7), and described heater (1) joins by temperature detect switch (TDS) (11) and the output of controller (7).

2. according to switch cubicle claimed in claim 1, with protection against the tide, draw solidifying device, it is characterized in that: the second fan (8) for being dispelled the heat in its inside is installed in described controller housing (10), and described the second fan (8) joins with the output of controller (7).

3. according to the switch cubicle described in claim 1 or 2, with protection against the tide, draw solidifying device, it is characterized in that: described the first fan (4) is fixedly mounted on the back of heater (1) by stay bolt (5), the quantity of described stay bolt (5) is four, and four described the first fans (4) are symmetricly set on four angles of the first fan (4).

4. according to the switch cubicle described in claim 1 or 2, with protection against the tide, draw solidifying device, it is characterized in that: described condenser (2) is arranged on the center position at heater (1) back.

5. according to the switch cubicle described in claim 1 or 2, with protection against the tide, draw solidifying device, it is characterized in that: between described the first fan (4) and condenser (2), have distance.

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