CN105914621A - Intelligent outdoor terminal box dehumidification device - Google Patents

Abstract

The invention provides an intelligent outdoor terminal box dehumidification device, which belongs to the technical field of dehumidification devices and solves the technical problem of dehumidifying the environment in the terminal box of electric power equipment. It includes a box, a dehumidification module, a ventilation drying module, a purging module, a humidity detection module, a temperature detection module and a control module; the dehumidification module includes a first exhaust fan, a dehumidifier and a heater, and the dehumidifier includes a dehumidification shell and a dehumidification cylinder and a dehumidification tube, a plurality of dehumidification cylinders are installed in the dehumidification shell, and a plurality of capillaries are arranged at the front end of the dehumidification tube, and the capillaries are evenly distributed in the dehumidification cylinder; the gas outlet end of the capillary is communicated with the heater through a pipe; The heater communicates with the purge pipe through a pipeline; the ventilation and drying module includes a second exhaust fan and an exhaust fan; the humidity detection module includes a first humidity detector and a second humidity detector, and the control module includes a controller, a comparator and an intelligent switch drive module. It can significantly dehumidify the cabinet.

Description

An intelligent outdoor terminal box dehumidification device

technical field

The invention relates to the technical field of dehumidification devices, in particular to an intelligent outdoor terminal box dehumidification device.

Background technique

As an essential device for substation operation, terminal box plays an important role in daily inspection and operation. In the running power transmission and transformation equipment, such as: switch cabinets, box transformers, central control cabinets, outdoor terminal boxes and other sealed boxes, the insulation distance of the devices is tight, and discharge, flashover, and switch trips will occur once moisture condensation occurs. Even burn the equipment. Therefore, it is necessary to design a device to dehumidify the terminal box.

Contents of the invention

The purpose of the present invention is to provide an intelligent outdoor terminal box dehumidification device to solve the technical problem of dehumidifying the environment in the terminal box of electric power equipment.

The technical solution adopted by the present invention to solve the technical problem is: an intelligent outdoor terminal box dehumidification device, including a box body, a dehumidification module, a ventilation and drying module, a purging module, a humidity detection module, a temperature detection module and a control module; The box body is mainly used for installation and fixing; the dehumidification module includes a first exhaust fan, a dehumidifier and a heater, the exhaust pipe of the first exhaust fan extends into the box, and the first exhaust fan The exhaust pipe of the machine communicates with the dehumidifier; the dehumidifier includes a dehumidification shell, a dehumidification cylinder and a dehumidification pipe, and a plurality of the dehumidification cylinders are installed in the dehumidification shell, and the dehumidification cylinder is covered with The front end of the dehumidification pipe is provided with a plurality of capillaries, the capillaries communicate with the dehumidification pipe, the capillaries are evenly distributed in the dehumidification cylinder, and the walls of the capillaries are provided with multiple capillaries. a through hole; the gas outlet end of the capillary communicates with the heater through a pipeline; the purging module includes a purging tube, and the purging tube is provided with a plurality of blowing ports; the heater passes through the pipeline Connected with the purging pipe;

The ventilation and drying module includes a second exhaust fan and an exhaust fan, the exhaust pipe of the second exhaust fan communicates with the purging pipe, and the air inlet pipe of the exhaust fan communicates with the space in the box;

The humidity detection module includes a first humidity detector and a second humidity detector, the first humidity detector is installed in the box, and the second humidity detector is installed in the box Outside; the temperature detection module includes a temperature sensor, and the temperature sensor is installed in the box;

The first exhaust fan is provided with a first power supply intelligent switch, the heater is provided with a second power supply intelligent switch, and the ventilation and drying module is provided with a third power supply intelligent switch;

The control module includes a controller, a comparator and an intelligent switch drive module, and the signal input terminals of the controller are respectively electrically connected to the signal output terminals of the comparator and the signal output terminals of the temperature detection module. The signal input end of the comparator is electrically connected with the signal output end of the humidity detection module; the signal output end of the controller is electrically connected with the signal input end of the intelligent switch driving module; the signal of the intelligent switch driving module The output ends are respectively electrically connected to the first power supply intelligent switch, the second power supply intelligent switch and the third power supply intelligent switch.

The dehumidification housing includes a left housing and a right housing, and the left housing and the right housing are fixed and fixed symmetrically.

The through holes on the capillary are gradually distributed densely along the direction from the inlet end to the outlet end of the capillary.

The purging pipes are evenly and symmetrically installed on the inner wall of the box.

A first electric air valve is provided between the purging module and the outlet end of the dehumidification module; a second electric air valve is provided between the air inlet end of the second exhaust fan and the purging module. Valve; the air intake end of the exhaust fan is provided with a third electric gas valve.

The control module includes an electric valve drive module, the signal output end of the controller is electrically connected to the signal input end of the electric valve drive module, and the signal output end of the electric valve drive module is respectively connected to the The first electro-pneumatic valve, the second electro-pneumatic valve and the third electro-pneumatic valve are electrically connected.

The beneficial effects of the present invention are:

1. The present invention uses two methods to dehumidify the environment in the box. The first method utilizes the relatively dry outside air to perform circulating dehumidification through the ventilation and drying module, and the second method uses the desiccant to dehumidify through the dehumidification module to ensure Drying in the box.

2. The dehumidification tube in the dehumidification module dehumidifies in the dehumidification cylinder through the capillary tube, and the dehumidification efficiency is high.

3. The purge module in the present invention realizes purge of all parts in the box without dead angle, so as to improve the dehumidification effect.

4. The heater in the present invention heats the dehumidified gas and then discharges it through the purge module. The heated gas heats the environment in and out of the box, which is beneficial to improve the dehumidification effect.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention after removing the front cover;

Fig. 2 is the front view of figure;

Figure 3 is a disassembled schematic diagram of the relationship between the dehumidifier and the dehumidification pipe;

Fig. 4 is a control principle block diagram of the present invention;

In the figure: 1. Cabinet; 2. First exhaust fan; 3. Dehumidifier; 4. Dehumidification shell; 5. Dehumidification pipe; 6. Heater; 7. Dehumidification cylinder; 8. Capillary; 9. Temperature sensor; 10. Purge pipe; 12. Second exhaust fan; 13. Exhaust fan; 14. First humidity detector; 15. Second humidity detector.

detailed description

As shown in Figures 1 to 4, an intelligent outdoor terminal box dehumidification device includes a box body 1, a dehumidification module, a ventilation and drying module, a purging module, a humidity detection module, a temperature detection module and a control module;

The box body 1 mainly plays an installation and fixing role for the device, and the dehumidification module is fixedly installed on the upper part of the box body 1, and the dehumidification module includes a first exhaust fan 2, a dehumidifier 3 and a heater 6, The function of the first exhaust fan 2 is to suck the moist gas in the cabinet 1 into the dehumidifier 3, the first exhaust fan 2 is fixed on the top of the cabinet 1, and the The first suction fan 2 comprises a suction pipe and an exhaust pipe, and the lower end of the suction pipe of the first suction fan 2 stretches into the described casing 1, and the exhaust pipe of the first suction fan 2 is connected with the described casing 1. The dehumidifier 3 is in communication; the dehumidifier 3 includes a dehumidification shell 4, a dehumidification cylinder 7 and a dehumidification pipe 5. The dehumidification shell 4 is used to hold a solid desiccant, and the dehumidification shell 4 includes a left shell and a The right housing, the left housing and the right housing are symmetrically fixed and installed together, which is convenient for the replacement of the dehumidification agent. The interior of the dehumidification housing 4 is evenly installed with a plurality of parallel dehumidification cylinders 7, and the dehumidification agent Distributed between the dehumidification cylinders 7, the dehumidification cylinders 7 are covered with mesh holes; the inlet end of the dehumidification pipe 5 communicates with the exhaust pipe of the first exhaust fan 2, and the dehumidification The front end of the tube 5 includes a plurality of capillary tubes 8, the capillary tubes 8 communicate with the dehumidification tube 5, and the capillary tubes 8 are evenly distributed in the dehumidification cylinder 7, and the capillary tubes 8 have a positive effect on the gas in the dehumidifier. The distribution in 3 plays a balancing role. The capillary 8 has a plurality of through holes on the tube wall, and the moisture will enter the dehumidification cylinder 7 through the through holes, and finally absorb the moisture through the solid desiccant in the dehumidification shell 4. The through holes are gradually distributed along the direction of the air inlet end of the capillary 8 to the air outlet end, because in the process of the gas passing through the dehumidifier 3, through the absorption of the moisture in the gas by the dehumidifier, the humidity of the gas is from the air inlet direction to the air outlet direction The humidity will gradually decrease, and the through holes on the capillary 8 are distributed in such a way that when the gas passes through, the desiccant can absorb the moisture in the gas evenly, so as to prevent the desiccant at the inlet end from absorbing too much water, while the desiccant at the outlet end is almost The occurrence of unutilized conditions improves the dehumidification effect. The heater 6 includes a heating plate and a heat conduction tube. The dehumidified gas in the capillary 8 enters the heat conduction tube in the heater 6 for heating through a pipeline, and the gas outlet end of the heating tube is connected with the purging pipe through a pipeline. Module Unicom. The dehumidified and heated gas will re-enter the box 1 through the purging module, and the dehumidified and heated gas will further promote the air-drying of the devices in the box 1 . A first electric gas valve is provided between the purging module and the gas outlet of the dehumidification module. The dehumidification module is provided with a first power supply intelligent switch and a second power supply intelligent switch, the first power supply intelligent switch is responsible for the on-off between the first exhaust fan 2 and the power supply; the second power supply intelligent switch is responsible for On-off between the heater 6 and the power supply.

The temperature detection module is installed in the box 1, the temperature detection module is connected to the control module, the temperature detection module includes a temperature sensor 9, and the temperature detection module is used for Detect the temperature in the box body 1. When the temperature in the box body 1 is too high and may affect the operation of the electrical equipment in the box body 1, the heater 6 power supply is cut off through the control module to stop heating the gas.

The purging module is installed on the inner wall of the box 1, and mainly plays a role in purging the inside of the box 1. The purging module includes a purging pipe 10, and the purging pipe 10 is installed evenly and symmetrically. On the inner wall of the box body 1, blowing mouths are uniformly arranged on the blowing pipe 10, and the blowing mouths are hole structures arranged on the blowing pipe 10, and the blowing mouths are used to realize cleaning of various parts in the box body 1. There is no dead angle purging to improve the dehumidification effect.

The ventilation drying module includes a second exhaust fan 12 and an exhaust fan 13, the second exhaust fan 12 is installed on the left end of the outer wall of the casing 1, and the air outlet end of the second exhaust fan 12 is Extends into the box 1 and communicates with the purging module. A second electric motor gas valve. Described exhaust fan 13 is installed on the right end of the outer wall of described casing 1, and the inlet end of described exhaust fan stretches in the described casing 1, and the inlet end of described exhaust fan is provided with the 3rd electric gas valve, The exhaust fan is used to exhaust the gas in the box body 1 . The ventilation and drying module is provided with a third power supply intelligent switch, and the third power supply intelligent switch is responsible for on-off of the connection between the ventilation and drying module and the power supply.

The humidity detection module includes a first humidity detector 14 and a second humidity detector 15. The first humidity detector 14 is installed in the box 1 and is responsible for detecting the humidity in the box 1. The second humidity detector 15 is installed on the outer wall of the box 1, and the humidity detector is responsible for detecting the humidity outside the box 1. The humidity detection module is connected with the control module.

The control module is installed on the inner wall of the box body 1 and controls the whole of the present invention. Described control module comprises controller, comparator, intelligent switch driving module and electric gas valve driving module, and described controller adopts single-chip microcomputer; The signal input end of described controller is connected with the signal output end of described comparator respectively electrical connection, the signal output end of the temperature detection module is electrically connected, the signal input end of the comparator is electrically connected with the signal output end of the humidity detection module; the signal output end of the controller is respectively connected to the intelligent switch drive The signal input end of the module is electrically connected, and the signal input end of the electric valve drive module is electrically connected; the signal output end of the intelligent switch module is respectively connected with the intelligent switch of the first power supply, the intelligent switch of the second power supply and the intelligent switch of the third power supply Electrical connection; the signal output terminals of the electro-pneumatic valve driving module are respectively electrically connected to the first electro-pneumatic valve, the second electro-pneumatic valve and the third electro-pneumatic valve.

The working principle of the present invention is that the first humidity detector 14 detects the humidity inside the cabinet 1, and when the humidity inside the cabinet 1 is greater than the set absolute humidity value, the device is turned on for dehumidification. The specific dehumidification method is implemented through the following process: the humidity outside the casing 1 is detected by the second humidity detector 15, and the humidity values of the first humidity detector 14 and the second humidity detector 15 are compared by a comparator, when the humidity outside the casing 1 When the humidity is lower than the humidity in the cabinet 1 and lower than the set absolute humidity, the ventilation and drying module is activated to dehumidify the cabinet 1; that is, the controller drives the smart switch of the third power supply through the smart switch drive module to open the second ventilation 12 and exhaust fan 13, the controller opens the second electric valve and the third electric valve through the electric valve drive module, and the second exhaust fan 12 draws the relatively dry air from the outside into the purge pipe 10 of the purge module and dry the inside of the box 1 through the purge pipe 10, and the purged gas is discharged out of the box 1 through the exhaust fan 13, and circulates like this until the humidity in the box 1 drops below the absolute humidity, and the dehumidification is stopped. deal with. In another case, the humidity in the cabinet 1 is detected by the first humidity detector 14, and the humidity outside the cabinet 1 is detected by the second humidity detector 15. When the humidity in the cabinet 1 and the humidity outside the cabinet 1 When both are greater than the set absolute humidity value, in this case, turn on the dehumidification module for processing: drive the first power supply intelligent switch and the second power supply intelligent switch through the intelligent switch drive module, turn on the first exhaust fan 2 and the heater 6, The first electric valve is driven by the electric valve drive module, and the first exhaust fan 2 pumps the gas in the box into the dehumidifier 3 for dehumidification. The dehumidified gas is heated by the heater 6 and then purged by the purge module The tube 10 blows the inside of the box 1 dry and circulates like this until the humidity in the box 1 drops below the absolute humidity, and the dehumidification process is stopped.

The present invention uses two methods to dehumidify the environment in the box body 1. The first method uses the relatively dry outside air to perform circulating dehumidification through the ventilation and drying module, and the second method uses the desiccant to dehumidify through the dehumidification module to ensure The drying in the box 1 is ensured; the dehumidification tube 5 in the dehumidification module dehumidifies in the dehumidification cylinder 7 through the capillary 8, and the dehumidification efficiency is high; the purging module in the present invention realizes purging of various parts in the box 1 without dead ends, To improve the dehumidification effect; the heater 6 in the present invention heats the dehumidified gas, and then discharges it through the purge module, and the heated gas heats the environment in the box 1, which is beneficial to improve the dehumidification effect.

Except for the technical features described in the description, all are known technologies by those skilled in the art.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. On the basis of the technical solution of the present invention, those skilled in the art can make various Modifications or variations are still within the protection scope of the present invention.

Claims (6)

1. An intelligent outdoor terminal box dehumidification device is characterized in that it comprises a box body, a dehumidification module, a ventilation drying module, a purging module, a humidity detection module, a temperature detection module and a control module; Installation and fixation; the dehumidification module includes a first exhaust fan, a dehumidifier and a heater, the exhaust pipe of the first exhaust fan extends into the box, and the exhaust pipe of the first exhaust fan is connected to the exhaust pipe of the first exhaust fan. The dehumidifier mentioned above is connected; the dehumidifier includes a dehumidification shell, a dehumidification cylinder and a dehumidification pipe, and a plurality of the dehumidification cylinders are installed in the dehumidification shell, and the dehumidification cylinder is covered with mesh holes, and the dehumidification pipe The front end is provided with a plurality of capillary tubes, the capillary tubes communicate with the dehumidification tube, the capillary tubes are evenly distributed in the dehumidification cylinder, and the tube walls of the capillary tubes are provided with a plurality of through holes; the capillary tubes The outlet end of the gas outlet communicates with the heater through a pipeline; the purging module includes a purging pipe, and the purging pipe is provided with a plurality of blowing ports; the heater communicates with the purging pipe through a pipeline Unicom; The ventilation and drying module includes a second exhaust fan and an exhaust fan, the exhaust pipe of the second exhaust fan communicates with the purging pipe, and the air inlet pipe of the exhaust fan communicates with the space in the box; The humidity detection module includes a first humidity detector and a second humidity detector, the first humidity detector is installed in the box, and the second humidity detector is installed in the box Outside; the temperature detection module includes a temperature sensor, and the temperature sensor is installed in the box; The first exhaust fan is provided with a first power supply intelligent switch, the heater is provided with a second power supply intelligent switch, and the ventilation and drying module is provided with a third power supply intelligent switch; The control module includes a controller, a comparator and an intelligent switch drive module, and the signal input terminals of the controller are respectively electrically connected to the signal output terminals of the comparator and the signal output terminals of the temperature detection module. The signal input end of the comparator is electrically connected with the signal output end of the humidity detection module; the signal output end of the controller is electrically connected with the signal input end of the intelligent switch driving module; the signal of the intelligent switch driving module The output ends are respectively electrically connected to the first power supply intelligent switch, the second power supply intelligent switch and the third power supply intelligent switch. 2. An intelligent outdoor terminal box dehumidification device according to claim 1, wherein the dehumidification housing includes a left housing and a right housing, and the left housing and the right housing are symmetrically fixed Install. 3 . The intelligent outdoor terminal box dehumidification device according to claim 1 , wherein the through-holes on the capillary are gradually densely distributed along the direction from the air inlet end to the air outlet end of the capillary. 4 . 4. An intelligent outdoor terminal box dehumidification device according to claim 1, characterized in that the blowing pipes are evenly and symmetrically installed on the inner wall of the box body. 5. An intelligent outdoor terminal box dehumidification device according to claim 1, characterized in that a first electric air valve is provided between the purging module and the air outlet of the dehumidification module; A second electric air valve is provided between the air intake end of the second exhaust fan and the purging module; a third electric air valve is provided at the air intake end of the exhaust fan. 6. An intelligent outdoor terminal box dehumidification device according to claim 1, wherein the control module includes an electric valve drive module, and the signal output terminal of the controller is connected with the drive of the electric valve. The signal input end of the module is electrically connected, and the signal output end of the electric valve driving module is electrically connected with the first electric valve, the second electric valve and the third electric valve respectively.