CN106300091B - Add the semiconductor dehumidifying device for switchgear cool-down dehumidification of partition board - Google Patents

Abstract

The invention discloses a semiconductor dehumidification device for cooling and dehumidifying a switch cabinet with a partition, which includes a switch cabinet and a dehumidification device; sensor; the temperature sensor is used to monitor the temperature and humidity inside the warehouse in real time, and transmit the result data to the controller in the dehumidification device; the dehumidification device includes a controller, a temperature and humidity sensor in the dehumidification device, a drainage type semiconductor dehumidification Air collector, air collecting partition, exhaust fan, air collecting hood and PVC pipe; the temperature and humidity sensor is connected to the drainage type semiconductor dehumidifier, the drainage type semiconductor dehumidifier is installed under the air collecting baffle, and the exhaust fan is installed under the air collecting baffle, and the exhaust fan exhausts the air. An air collection hood is arranged on the side, and the air collection hood is connected with the PVC pipes connected with the switch room, busbar warehouse and cable warehouse in the switch cabinet. The invention has reasonable structure, high sensitivity, good reliability and high safety.

Description

Semiconductor dehumidification device with partition for cooling and dehumidification of switchgear

technical field

The invention relates to a semiconductor dehumidification device used for cooling and dehumidifying a switch cabinet.

Background technique

In summer, especially during the rainy season, the weather is humid and hot, and the long-term operation of circuit breakers and other equipment inside the switch cabinet will generate heat, which will eventually cause condensation in the high and low voltage cabinets in the substation. The protection level of the switch cabinet is high, and its heat dissipation and ventilation conditions are poor. Due to the good sealing, condensation is formed, and it adheres to the insulating surface to accelerate the deterioration of the insulating medium, causing the circuit breaker to trip or the electrical equipment to be damaged. After several years of operation of the switchgear hanging on the grid, the problem of equipment discharge and heat generation is very prominent. A large part of the reason is that the dehumidification and cooling effect of the switchgear is not good. If the sealing degree of the switchgear and the cable trench is not up to the requirement or it is operated for a long time, it will inevitably cause moisture to enter through small gaps. If the condensation is serious, ionization will occur and ozone will be generated at the same time, which will affect the normal operation of the switchgear and even cause accidents. Therefore, it is very necessary to timely cool down and dehumidify the switchgear.

In addition, traditional electric cabinet dehumidification devices mostly use direct heating method and semiconductor refrigeration method. Direct heating method cannot really remove moisture in the air. Although semiconductor refrigeration method can really remove moisture, the temperature of the discharged air is relatively low. , then encounter condensation on the surface of the electrical appliance in operation, which will affect the normal operation of the electrical appliance.

Contents of the invention

The object of the present invention is to provide a semiconductor dehumidification device for cooling and dehumidifying switch cabinets with reasonable structure, high sensitivity, good reliability and high safety.

Technical solution of the present invention is:

A semiconductor dehumidification device for cooling and dehumidifying a switch cabinet with a partition, which is characterized in that: it includes a switch cabinet and a dehumidification device; sensor; the temperature sensor is used to monitor the temperature and humidity inside the warehouse in real time, and transmit the result data to the controller in the dehumidification device; the dehumidification device includes a controller, a temperature and humidity sensor in the dehumidification device, a drainage type semiconductor dehumidification Air collector, air collecting partition, exhaust fan, air collecting hood, and PVC pipe; the temperature and humidity sensor is connected to the drainage type semiconductor dehumidifier, and the drainage type semiconductor dehumidifier is installed under the air collecting baffle, and the exhaust fan is installed under the air collecting baffle, and the exhaust fan exhausts the air. An air collecting hood is installed on the side, and the air collecting hood is connected with the PVC pipes connected with the switch room, busbar warehouse and cable warehouse in the switch cabinet;

The controller is used to control the switch of the drainage type semiconductor dehumidifier. The temperature and humidity sensor in the dehumidification device is used to detect the temperature and humidity of the external air sucked by the drainage type semiconductor dehumidifier and feed it back to the controller. The drainage type semiconductor dehumidifier The air collector is used to absorb external air and process it into dry and cold air. The air collecting baffle is used to collect and control the flow into the working area of the exhaust fan. Mixed, the hood and PVC ducts are used to transport dry and cool air.

The temperature and humidity sensors respectively configured in each warehouse are respectively installed in the switch room, the bus bar warehouse, and the inner wall condensation high-incidence area of the cable warehouse, which are used to monitor the temperature and humidity inside each room in real time, and transmit the result data to the controller in the dehumidification device .

The controller is electrically connected to each temperature and humidity sensor and the drainage type semiconductor dehumidifier, and the controller is used for receiving data transmitted by the temperature and humidity sensor in real time, and controlling the switch of the drainage type semiconductor dehumidifier.

The temperature and humidity sensor in the dehumidification device is used to detect the temperature and humidity of the external air inhaled by the drainage type semiconductor dehumidifier and feed it back to the controller. If the sucked external air meets the temperature and humidity requirements, the drainage type semiconductor dehumidifier will not be turned on. ,save resources.

The drainage type semiconductor dehumidifier is used to receive the controller signal and absorb the external air and process it into dry and cold air, and the drainage type semiconductor dehumidifier condensed water drops are discharged to the outside of the dehumidification device through the conduit.

The wind collecting baffle communicates with the exhaust end of the drainage type semiconductor dehumidifier, and is used to collect and control the flow entering the working area of the exhaust fan.

The exhaust fan is used to inhale a small amount of external air, change and mix the dry and cold air flowing through the air collecting partition, increase the temperature of the dry and cold air flowing through it, and effectively prevent the dry and cold air from being too low in temperature to cause condensation again in the switch cabinet.

The wind collecting hood communicates with the exhaust fan, controls the circulation of dry and cold air and cooperates with the PVC pipe to evenly distribute the dry and cold air into each chamber.

The drainage-type semiconductor dehumidifier, air-collecting partition, exhaust fan, air-collecting hood and PVC pipe can realize uninterrupted input of dry cold air for the switchgear, reduce the temperature and humidity in the switchgear, and ensure that the switchgear is in a safe environment. environment to run.

The space of the traditional switchgear busbar warehouse is small, so it is not suitable to add a dehumidification device inside. This invention designs a dehumidifier on the outside, and through the PVC pipe, the dry cold air is transported from the pressure relief hole of the switchgear to the bottom of the busbar warehouse, diluted and squeezed High temperature and humid air is discharged from the upper exhaust port, which ensures the safe and stable operation of the equipment.

The invention realizes the separation of water and air through the drainage type semiconductor dehumidifier, passes the dry cold air into the switch cabinet, and can completely eliminate the problem of condensation in the switch cabinet. When the incoming cold air is heated, more water vapor can be accommodated. With the continuous introduction of dry and cold air, the hot and humid air is continuously diluted and discharged, and finally the water vapor in the switchgear can be completely discharged.

In the present invention, the air-collecting partition is used to receive the dry and cold air processed by the semiconductor dehumidification device, collect and control the flow of it into the working area of the exhaust fan, and effectively prevent the flow from being too small or too large to cause problems.

The exhaust fan in the present invention is used to inhale a small amount of external air, change and mix the dry and cold air flowing through the air collecting partition, appropriately increase the temperature of the dry and cold air flowing through it, and effectively prevent the temperature of the dry and cold air from entering the switch cabinet and encountering high-temperature working components Re-condensation phenomenon caused by too low.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is a structural schematic diagram of an embodiment of the present invention.

Detailed ways

A semiconductor dehumidifier for cooling and dehumidifying a switchgear with a partition, comprising a switchgear 14 and a dehumidifying device 15; Humidity sensors 1, 3, 5; the temperature sensor is used to monitor the temperature and humidity inside the warehouse in real time, and transmits the result data to the controller 7 in the dehumidification device; the dehumidification device includes the controller 7, the dehumidification device Temperature and humidity sensor 8, drainage type semiconductor dehumidifier 9, air collection partition 10, exhaust fan 11, air collection cover 12 and PVC pipe 13; temperature and humidity sensor is connected with drainage type semiconductor dehumidifier, and the drainage type semiconductor dehumidifier is installed below The baffle, the exhaust fan is arranged under the air collecting baffle, and the air collecting hood is arranged on the exhaust side of the exhaust fan, and the air collecting hood is connected with the PVC pipe connected with the switch room, bus bar compartment and cable compartment in the switch cabinet;

The controller is used to control the switch of the drainage type semiconductor dehumidifier. The temperature and humidity sensor in the dehumidification device is used to detect the temperature and humidity of the external air sucked by the drainage type semiconductor dehumidifier and feed it back to the controller. The drainage type semiconductor dehumidifier The air collector is used to absorb external air and process it into dry and cold air. The air collecting baffle is used to collect and control the flow into the working area of the exhaust fan. Mixed, the hood and PVC ducts are used to transport dry and cool air.

The temperature and humidity sensors respectively configured in each warehouse are respectively installed in the switch room, the bus bar warehouse, and the inner wall condensation high-incidence area of the cable warehouse, which are used to monitor the temperature and humidity inside each room in real time, and transmit the result data to the controller in the dehumidification device .

The controller is electrically connected to each temperature and humidity sensor and the drainage type semiconductor dehumidifier, and the controller is used for receiving data transmitted by the temperature and humidity sensor in real time, and controlling the switch of the drainage type semiconductor dehumidifier.

The temperature and humidity sensor in the dehumidification device is used to detect the temperature and humidity of the external air inhaled by the drainage type semiconductor dehumidifier and feed it back to the controller. If the sucked external air meets the temperature and humidity requirements, the drainage type semiconductor dehumidifier will not be turned on. ,save resources.

The drainage type semiconductor dehumidifier is used to receive the controller signal and absorb the external air and process it into dry and cold air, and the drainage type semiconductor dehumidifier condensed water drops are discharged to the outside of the dehumidification device through the conduit.

The wind collecting baffle communicates with the exhaust end of the drainage type semiconductor dehumidifier, and is used to collect and control the flow entering the working area of the exhaust fan.

The exhaust fan is used to inhale a small amount of external air, change and mix the dry and cold air flowing through the air collecting partition, increase the temperature of the dry and cold air flowing through it, and effectively prevent the temperature of the dry and cold air from being too low to cause condensation again in the switch cabinet.

The wind collecting hood communicates with the exhaust fan, controls the circulation of dry and cold air and cooperates with the PVC pipe to evenly distribute the dry and cold air into each chamber.

The drainage-type semiconductor dehumidifier, air-collecting partition, exhaust fan, air-collecting hood and PVC pipe can realize uninterrupted input of dry cold air for the switchgear, reduce the temperature and humidity in the switchgear, and ensure that the switchgear is in a safe environment. environment to run.

The invention uses a semiconductor dehumidifier to detect the temperature and humidity of the air outside the switch cabinet. When the temperature and humidity of the external air meet the requirements, the exhaust fan is directly started. Separation of water and air. When the temperature and humidity of the air after cooling and dehumidification meet the requirements, the dry cold air is stored through the air collecting partition. When a certain amount is stored, the partition is opened, the exhaust fan is turned on, and the dry cold air is passed through the wind collecting hood. When the temperature and humidity of the switch cabinet meet the requirements of safe operation, the dehumidifier and exhaust fan stop running; as the components in the switch cabinet heat up, when the temperature and humidity sensor in the switch cabinet detects If the temperature or humidity does not meet the requirements, the exhaust fan will continue to work until the temperature and humidity in the switch cabinet meet the requirements.

Claims (9)

1. A semiconductor dehumidifier for switchgear cooling and dehumidification with a partition is characterized in that: it comprises a switchgear and a dehumidifier; The cable warehouses are respectively equipped with temperature and humidity sensors; the temperature and humidity sensors are used to monitor the temperature and humidity inside the warehouse in real time, and transmit the result data to the controller in the dehumidification device; the dehumidification device includes a controller, a dehumidification device The temperature and humidity sensor, drainage type semiconductor dehumidifier, air collecting partition, exhaust fan, air collecting hood and PVC pipe; the temperature and humidity sensor in the dehumidification device is connected to the drainage type semiconductor dehumidifier, and the drainage type semiconductor dehumidifier is provided with a wind collecting baffle An exhaust fan is installed under the wind collecting baffle, and an air collecting hood is installed on the exhaust side of the exhaust fan, and the air collecting hood is connected to the PVC pipe connected to the switch room, bus bar compartment and cable compartment in the switch cabinet; The controller is used to control the switch of the drainage type semiconductor dehumidifier. The temperature and humidity sensor in the dehumidification device is used to detect the temperature and humidity of the external air sucked by the drainage type semiconductor dehumidifier and feed it back to the controller. The drainage type semiconductor dehumidifier The air collector is used to absorb external air and process it into dry and cold air. The air collecting baffle is used to collect and control the flow into the working area of the exhaust fan. mixing, the hood and PVC ducts are used to transport dry and cool air; Use the temperature and humidity sensor in the dehumidification device to detect the temperature and humidity of the air outside the switchgear. When the temperature and humidity of the outside air meet the requirements, the exhaust fan will be started directly. , to realize the separation of water and air. When the temperature and humidity of the air after cooling and dehumidification meet the requirements, the dry cold air is stored through the air collection partition. The wind cover and PVC pipe are transported to the switch cabinet. When the temperature and humidity of the switch cabinet meet the requirements for safe operation, the dehumidifier and exhaust fan stop running; as the components in the switch cabinet heat up, when the temperature and humidity sensor in the switch cabinet If it is detected that the temperature or humidity does not meet the requirements, the exhaust fan will continue to work until the temperature and humidity in the switch cabinet meet the requirements. 2. The semiconductor dehumidification device for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the temperature and humidity sensors respectively configured in the switch room, the bus bar warehouse, and the cable bar are respectively installed in the switch room and the bus bar barn , The condensation high-incidence area on the inner wall of the cable warehouse is used to monitor the temperature and humidity inside the switch room, busbar warehouse and cable warehouse in real time, and transmit the result data to the controller in the dehumidification device. 3. The semiconductor dehumidifier for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the controller is electrically connected with each temperature and humidity sensor and the drainage type semiconductor dehumidifier, and the control The device is used to receive the data transmitted by the temperature and humidity sensor in real time, and control the switch of the drainage type semiconductor dehumidifier. 4. The semiconductor dehumidification device for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the temperature and humidity sensor in the dehumidification device is used to detect the temperature and humidity of the external air sucked by the drainage type semiconductor dehumidifier The temperature and humidity are fed back to the controller. If the inhaled external air meets the temperature and humidity requirements, the drainage type semiconductor dehumidifier will not be turned on to save resources. 5. The semiconductor dehumidifier for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the drainage type semiconductor dehumidifier is used to receive the controller signal and absorb external air and process it into dry and cold air , the condensed water drops of the drainage type semiconductor dehumidifier are discharged out of the dehumidifier through the conduit. 6. The semiconductor dehumidification device for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the wind collecting baffle communicates with the exhaust end of the drainage type semiconductor dehumidifier for gathering And control the flow into the working area of the exhaust fan. 7. The semiconductor dehumidification device for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the exhaust fan is used to inhale a small amount of external air, change the dry and cold air flowing through the wind collecting partitions and interact with it The mixture can increase the temperature of the dry and cold air flowing through it, and effectively prevent the temperature of the dry and cold air from being too low to cause condensation again in the switch cabinet. 8. The semiconductor dehumidification device for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the air collecting hood communicates with the exhaust fan, controls the circulation of dry and cold air and cooperates with the PVC pipe , Evenly distribute dry and cold air into each chamber. 9. The semiconductor dehumidification device for cooling and dehumidifying the switchgear with partitions according to claim 1, characterized in that: the drainage type semiconductor dehumidifier, the air collecting partition, the exhaust fan, the air collecting hood and the PVC pipe, It can realize the uninterrupted input of dry cold air for the switchgear, reduce the temperature and humidity in the switchgear, and ensure the operation of the switchgear in a safe environment.