CN104423404A - Intelligent dehumidification system of electrical equipment - Google Patents

Abstract

The invention discloses an intelligent dehumidification system for power equipment, which includes an intelligent control unit and an environment control unit, the intelligent control unit includes a main control unit and a system power supply unit, the environment control unit includes a dehumidification unit, an atomization unit, a forced circulation unit and a monitoring unit unit. The present invention can not only monitor the environment at the same time and display it through LED numbers, but also set and display the temperature and humidity respectively through buttons. The intelligent control unit of the system can automatically control the environmental control unit according to the site conditions. The water discharged from the equipment is forcibly evaporated by the atomization unit and discharged safely. This system is the preferred environmental monitoring equipment to ensure the efficient and safe operation of the smart grid.

Description

Intelligent dehumidification system for power equipment

technical field

The invention relates to the fields of electrical equipment and electrical engineering, in particular to an intelligent dehumidification system for electrical equipment. the

Background technique

At present, in the typical design of substations of various voltage levels, more indoor substation designs are adopted. In order to meet the requirements of equipment operation reliability and safety, the lead wires of the power supply inlet and outlet intervals and the main transformer interval are basically electrically connected in the form of closed busbar barrels. With the increase of the operating life and the aging of some components, the operating defects or hidden dangers are becoming more and more prominent. After long-term monitoring and operation data summary analysis of the substation equipment, the main reason is that the equipment has been in a humid operating environment for a long time and cannot be effectively treated and The air insulation distance is smaller in two respects. the

Indoor layout Substations of all voltage levels are equipped with underground cable layers or indoor cable trenches, which are prone to water ingress due to insufficient sealing. The humid air in the room evaporates, enters the switch cabinet through the gap at the bottom of the switch cabinet, continues to evaporate upward, and enters the busbar barrel above the switch cabinet. There is no heating or moisture-removing device in the busbar barrel. Although there are different types of ventilation holes, most of them are located on both sides of the busbar barrel and are relatively small. The air pressure inside and outside the busbar barrel is the same. The tide function is basically lost. The accumulation of moisture in the bus barrel brings great hidden dangers to the safe operation of live equipment, and can easily cause phase-to-phase short-circuit faults. the

Contents of the invention

The technical problem to be solved by the present invention is to provide an intelligent dehumidification system for power equipment, which has the purpose of atomizing humid air and completely eliminating it through air circulation, so as to ensure that the operating environment of the operating equipment meets the requirements of the operating regulations. the

In order to solve the above technical problems, the present invention includes an intelligent control unit and an environmental control unit,

The intelligent control unit includes

a main control unit, used to control the environmental control unit to work, and

The system power supply unit is used to provide the power supply of the system,

The environmental control unit includes

Dehumidification unit, used to condense and separate the moisture in the air inside the power equipment,

The atomization unit is used to collect the moisture separated from the dehumidification unit and atomize and isolate the moisture for discharge,

The forced circulation unit is used to forcibly suck the air in the power equipment into the environmental control unit and pass through the dehumidification unit, then discharge the dry air into the power equipment, and

The monitoring unit is used to monitor the temperature and humidity of the environment inside the power equipment in real time, and trigger the environment control unit to turn on or off. the

The environment control unit also includes a heating device, which is controlled by the main control unit to heat up the air treated by the dehumidification unit. the

The intelligent dehumidification system for power equipment also includes a self-inspection unit, which is electrically connected to a fault alarm unit, and the self-inspection unit monitors the work of each component in the environmental control unit in real time to determine whether to send a fault to the fault alarm unit. Alarm. the

The system of the invention is a high-tech product specially developed for improving the humidity of electric equipment and preventing condensation. The system is composed of intelligent control unit and environment control unit. It can not only monitor the environment at the same time, and display it through LED digital, but also set and display the temperature and humidity respectively through the buttons. The intelligent control unit of the system can automatically control the environmental control unit according to the site conditions. The water discharged from the equipment is forced to evaporate through the atomization unit and discharged safely. This system is the preferred environmental monitoring equipment to ensure the efficient and safe operation of the smart grid. the

Description of drawings

Fig. 1 is the structural block diagram of electric equipment intelligent dehumidification system of the present invention;

Fig. 2 is the structural representation of environment control unit among the present invention;

Fig. 3 is a functional block diagram of the intelligent dehumidification system for power equipment of the present invention. the

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

Referring to Fig. 1 to Fig. 3, the present invention includes an intelligent control unit 1 and an environment control unit 2, both of which are provided with terminals and connected to each other. the

The intelligent control unit 1 includes

The main control unit 11 is used to control the environment control unit 2 to work, and

The system power supply unit 12 is used to provide the power supply of the system,

The environmental control unit 2 includes

The dehumidification unit 21 is used to condense and separate the moisture in the air in the power equipment 5. On the basis of applying insulating paint to the conductors, in order to completely eliminate the phenomenon of moisture accumulation in the busbar barrel of the power equipment 5, the system of the present invention is specially equipped with The intelligent dehumidification unit 21 utilizes the principle that the moisture in the air is condensed and condensed. According to the requirement of dehumidification capacity, a number of dehumidification units 21 are installed on the upper part of the bus barrel, and the condensed moisture is discharged from the bus barrel to the atomization unit in liquid form. twenty two,

The atomizing unit 22 is used to collect the moisture separated from the dehumidification unit 21 and atomize and isolate the moisture in the form of high-frequency atomization, which not only ensures a dry environment in the busbar barrel, but also prevents condensed water from being discharged from the busbar After the cylinder, the hidden dangers accumulated or leaked on the electric equipment 5,

The forced circulation unit 23 is used to forcibly suck the air in the electric equipment 5 into the environment control unit 2 and after passing through the dehumidification unit 21, discharge the dry air into the electric equipment 5, and

The monitoring unit 24 is used to monitor the temperature and humidity of the environment inside the power equipment 5 in real time, and trigger the environment control unit 2 to start or stop working. the

The environment control unit 2 further includes a heating device 25 , which is controlled by the main control unit 11 to heat up the air treated by the dehumidification unit 21 . the

The intelligent dehumidification system for power equipment also includes a self-inspection unit 3, which is electrically connected to a fault alarm unit 4, through which the self-inspection unit 3 monitors the work of each component in the environmental control unit 2 in real time to determine whether to The fault alarm unit 4 sends an alarm signal. the

The system of the present invention is suitable for power equipment, such as bus bridge, high and low voltage control cabinets, high and low voltage switch cabinets, ring network cabinets, box-type substations, dry-type transformers, instrument boxes and other occasions that require automatic dehumidification and anti-condensation, especially Applicable to equipment that needs to remove accumulated water that is already in operation. At the same time, the device can be used for a long time under strong electromagnetic fields and various harsh natural environments. the

Now take dehumidification inside the bridge frame as an example to describe the working principle of the present invention in detail:

After the moist air inside the bridge frame is controlled by the forced circulation unit 23 and inhaled by the air inlet 26, the inhaled air is first detected by the environmental sensor of the monitoring unit 24, and the humidity exceeds the standard, and then flows through a special air duct. Condensate the moisture in the air into water droplets and completely isolate it from the equipment, then discharge it to the atomization unit 22, the discharged water is forced to volatilize through the atomization unit 22 and discharged to the outside of the bridge, and the treated air is heated by the heating device 25 Heating up, and then through the forced circulation unit 23, dry hot air is blown into the inside of the bridge frame through the air outlet 27. The air inside the bridge frame is forced to circulate through the dehumidification unit 21, so that the relative environment of the air in the bridge frame is improved, and the whole dehumidification process is completed. When the humidity inside the bridge frame is below the start-up value, the fan is started for 3 minutes every 30 minutes to circulate the air to make the sampling value more accurate, and the humidity change inside the bridge frame is monitored in real time through the monitoring unit 24 . If the humidity changes, the dehumidification unit can be started in time to avoid accidents. The atomization unit 22 uses ultrasonic high-frequency vibration to atomize the water into ultra-fine particles of 1-5 microns, and volatilizes the water mist through the isolation wind device. the

The system of the present invention adopts microprocessor control technology and has manual and automatic control modes. the

This system has a fault alarm display function, which indicates the internal fault alarm caused by the failure of the fan of the forced circulation unit 23 and the cooling element of the dehumidification unit 21, disconnection, etc., and has a fault alarm output contact, equipped with an RS485 communication interface, and outputs the current humidity Value, preset humidity value and fault information, etc., are refreshed every 2 seconds. the

The environmental control unit of this system adopts external installation, and controls the environment in the switchgear and bus bridge, and the condensed water is isolated and evaporated by the atomization unit 22 . Because there is no drainage pipeline, it will not affect the safe operation of the busbar and other equipment. This solution adopts fully automatic intelligent control, which is easy to operate and can realize unattended and real-time online monitoring. At the same time, it is equipped with RS485 communication interface for system upgrade. the

In summary, the content of the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can propose other embodiments within the technical guidance of the present invention, but these embodiments are all included in the scope of the present invention. within range. the

Claims (3)

1. a power equipment Intelligent dehumidifying system, is characterized in that: comprise intelligent control unit (1) and environment control unit (2),

Described intelligent control unit (1) comprises

Main control unit (11), carries out work for controlling described environment control unit (2), and

SPU (12), for providing the electric power supply of system,

Described environment control unit (2) comprises

Dehumidifying element (21), for condensing and isolating the moisture in power equipment (5) interior air,

Atomization unit (22), for collecting isolated moisture in described Dehumidifying element (21) and moisture atomization isolation being discharged,

Forced circulation unit (23), for power equipment (5) interior air to be forced to be drawn in described environment control unit (2) and after described Dehumidifying element (21), to be discharged to becoming dry air again in power equipment (5), and

Monitoring means (24), for monitoring in real time the epidemic disaster of power equipment (5) environment, and triggers described environment control unit (2) unlatching or the work of closedown.

2. according to power equipment Intelligent dehumidifying system according to claim 1, it is characterized in that: described environment control unit (2) also comprises heating arrangement (25), control described heating arrangement (25) by described main control unit (11) and the air heat after Dehumidifying element (21) process is heated up.

3. according to power equipment Intelligent dehumidifying system according to claim 2, it is characterized in that: power equipment Intelligent dehumidifying system also comprises self-test unit (3), this self-test unit (3) is electrically connected with a fault alarm unit (4), carries out Real-Time Monitoring to judge whether sending alerting signal to described fault alarm unit (4) to the work of each parts in described environment control unit (2) by self-test unit (3).