CN201242247Y - Automatic and remote control ventilation device - Google Patents

Abstract

The utility model discloses an automatic and remote control ventilator, which comprises a ventilator, an intelligent controller for controlling switching of the ventilator, a temperature regulator, a humidity regulator, an SF6 gas monitor, and a temperature sensor installed on the temperature regulator , The humidity sensor installed on the humidity regulator, the SF6 sensor installed on the SF6 gas monitor, the intelligent controller is powered by AC 220V power supply, and the switching of the fan is controlled through the AC contactor. The intelligent controller is respectively connected with the temperature regulator, The humidity regulator and the SF6 gas monitor are connected; the intelligent controller is also connected with the remote remote signaling module, and the remote remote remote signaling module is connected with the image monitoring and management machine of the centralized control center to realize remote monitoring of the above-mentioned automatic ventilation device; intelligent control The controller uses a single-chip microcomputer as the control unit. The utility model can realize automatic ventilation for the unattended high-pressure room, and ensures the safety of staff and equipment operation.

Description

An automatic and remote control ventilation device

technical field

The utility model relates to an indoor ventilation regulating system, in particular to an automatic and remote control ventilation device for an unattended substation.

Background technique

With the rapid development of science and technology such as electronics, communication, and automation, as well as the reform of the current power system and management model, substations with a voltage level of 110KV and above in urban centers are generally designed as indoor substations, generally fully sealed combined electrical appliances, and The comprehensive automation technology of substation is applied, and the management mode of "unmanned duty" is adopted in all.

Unattended indoor substation has the advantages of less land use, easy equipment maintenance, good moisture and windproof, etc., but because the equipment is placed in a fully enclosed The ventilation conditions are not good, and the indoor ventilator cannot be switched automatically, which causes the temperature of the equipment in the electrical equipment room to be too high, which easily accelerates the oxidation speed of the relay contacts and affects the reliability of the protection action of the microcomputer; the aging of the equipment insulation is accelerated, and the sealing pads often appear on the equipment Aging causes oil leakage defects in equipment, which seriously affects the health of substation equipment; a particularly serious problem is that if SF6 gas leakage occurs in the electrical equipment room, when the staff performs switching operations and maintenance, it is easy to cause poisoning and endanger the staff life safety.

Contents of the invention

In order to solve the above problems, the purpose of this utility model is to provide an automatic and remote control ventilation device, which can automatically or remotely control the switching fan by sensing the indoor temperature and humidity of the electrical equipment, the size of the SF6 gas density, forced air cooling or Ventilate the room so that the equipment can operate safely.

In order to realize the above-mentioned purpose of the invention, the utility model adopts the following technical solutions:

The automatic and remote control ventilation device includes a fan, an intelligent controller for controlling the switching of the fan, a temperature regulator, a humidity regulator, an SF6 gas monitor, a temperature sensor installed on the temperature regulator, a temperature sensor installed on the The humidity sensor on the humidity regulator, the SF6 sensor installed on the SF6 gas monitor, the intelligent controller is powered by AC 220V power supply, and the switching of the fan is controlled through the AC contactor. The intelligent controller is connected with the temperature regulator and the humidity regulator respectively. , SF6 gas monitor connection; the intelligent controller is also connected with the remote remote control remote signaling module, and the remote remote control remote signal module is connected with the image monitoring and management machine of the centralized control center to realize remote monitoring of the above-mentioned automatic ventilation device; the intelligent controller uses a single-chip microcomputer for the control unit.

Described automatic and remote control ventilator, its intelligent controller comprises automatic detection circuit, the signal that temperature sensor, humidity sensor, SF6 sensor gathers is converted into analog electric signal by temperature regulator, humidity regulator, SF6 gas monitor, through The A/D conversion unit is converted into a digital signal and then input to the single-chip CPU; the output drive circuit, the single-chip output signal controls the work of the ventilator; the alarm indicator light, the switch for automatic and remote control, and the panel for setting parameters; the output alarm circuit, the single-chip output The alarm signal is transmitted to the image monitoring and management machine through the remote remote control and remote signaling module, and the automatic ventilation device is monitored through the image monitoring and management machine.

Due to the adoption of the above-mentioned technical scheme, the utility model has the following advantages:

The automatic and remote control ventilation device described in the utility model realizes automatic switching of the power supply of the fan by identifying three harmful factors that threaten the unstable operation of the high-voltage indoor equipment, and plays the role of forced air cooling or normal indoor ventilation, thereby Keep the equipment in the high-pressure room in a safe and stable operating environment, reduce the workload of operation and maintenance personnel and oil and gas loss, eliminate any factors that are not conducive to the safety of personal equipment, improve the occupational safety and health of the staff and the safety of electrical equipment, and ensure that the staff And the safety of equipment operation; at the same time, through remote monitoring, the centralized control personnel can keep abreast of the on-site work conditions, and can switch in time when abnormal conditions are found, which can timely strengthen indoor air circulation and ensure the safe operation of personnel and equipment.

The utility model is suitable for high-voltage chambers, box-type transformers and high-voltage tap boxes of various electrical equipment, and can also be used in various high-low voltage junction boxes, terminal boxes, mechanism boxes, operation boxes and other occasions that require dehumidification and heat preservation. Improve equipment operation status, reduce equipment failure rate, avoid distribution network and equipment accidents caused by humidity and poor equipment working environment, reduce external power outages, and improve power supply reliability. Ensure safe and reliable power supply for important users. At the same time, it can also avoid poisoning accidents caused by SF6 gas leakage to operation and maintenance personnel, effectively protect the health and safety of operators, and improve social and economic benefits.

Description of drawings

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

In the figure: 1—AC 220V power supply; 2—image monitoring and management machine; 3—remote remote control and remote signaling module; 4—intelligent controller; 5—temperature regulator; 6—humidity regulator; 7—SF6 gas monitor; 8 - temperature sensor; 9 - humidity sensor; 10 - SF6 sensor; 11 - AC contactor; 12 - ventilator.

Detailed ways

As shown in Figure 1, this automatic and remote control ventilator, it comprises ventilator 12, the intelligent controller 4 of control ventilator switching, temperature regulator 5, humidity regulator 6, SF6 gas monitor 7, be installed in temperature The temperature sensor 8 on the regulator, the humidity sensor 9 installed on the humidity regulator, the SF6 sensor 10 installed on the SF6 gas monitor, the intelligent controller 4 is powered by the AC 220V power supply 1, and the ventilator is controlled through the AC contactor 11 12 switching, the intelligent controller 4 is connected with the temperature regulator 5, the humidity regulator 6, and the SF6 gas monitor 7 respectively; The image monitoring and management machine 2 is connected to realize remote monitoring of the above-mentioned automatic ventilation device; the intelligent controller uses a single-chip microcomputer as a control unit.

Described automatic and remote control ventilator, its intelligent controller comprises automatic detection circuit, the signal that temperature sensor, humidity sensor, SF6 sensor gathers is converted into analog electric signal by temperature regulator, humidity regulator, SF6 gas monitor, through The A/D conversion unit is converted into a digital signal and then input to the single-chip CPU; the output drive circuit, the single-chip output signal controls the work of the ventilator; the alarm indicator light, the switch for automatic and remote control, and the panel for setting parameters; the output alarm circuit, the single-chip output The alarm signal is transmitted to the image monitoring and management machine through the remote remote control and remote signaling module, and the automatic ventilation device is monitored through the image monitoring and management machine.

The intelligent controller also includes a watchdog circuit, so that the controller can work in a very harsh electromagnetic environment, and the program will not run away due to high-frequency spike interference of the power supply or space electromagnetic interference.

In the electrical equipment room of the unattended substation, the temperature sensor collects the indoor temperature and displays it on the temperature regulator. The alarm temperature value is set on the temperature regulator, and the collected signal is input into the single-chip CPU of the intelligent controller to communicate with the device. Compared with the fixed value, when the collected temperature is higher than the set value, the output signal of the single-chip microcomputer makes the normally open contact of the AC contactor close, the power circuit of the fan is connected, the fan is started to ventilate, and the alarm indicator light is on;

The humidity sensor collects indoor humidity, displays it on the humidity regulator, and inputs the collected signal into the single-chip CPU of the intelligent controller, and compares it with the set value. When the collected humidity is higher than the set value, the single-chip output signal makes the AC The normally open contact of the contactor is closed, the power circuit of the fan is connected, the fan is started to ventilate, and the alarm indicator light is on;

The SF6 sensor collects the indoor SF6 gas density, displays it on the SF6 gas monitor, and inputs the collected signal into the single-chip CPU of the intelligent controller, and compares it with the set value. When the collected SF6 gas density is higher than the set value, The output signal of the single-chip microcomputer makes the normally open contact of the AC contactor close, the power circuit of the fan is connected, the fan is started to ventilate, and the alarm indicator light is on; according to the site conditions of the electrical equipment room, one can be installed in the indoor SF6 gas leaking position. or multiple SF6 sensors;

When the above-mentioned temperature, humidity, and SF6 gas changes are higher than the set value of the intelligent controller, the ventilator can be started to ventilate, and the alarm indicator light is on; at the same time, the alarm signal is transmitted to the centralized control center through the remote control device remote signaling module. On the image monitoring and management machine with screen display and voice prompts, the operating status, temperature, humidity, and changes in SF6 gas density of the fan are displayed on the image monitoring and management machine; when the changes in temperature, humidity, and SF6 gas are lower than those of the intelligent controller When the value is set, the output signal of the single-chip microcomputer cuts off the power circuit of the ventilator, and the ventilator stops working.

When the indoor temperature, humidity is too high, and the density is too high, when the fan fails to start normally or artificial ventilation is performed according to the weather conditions, the image monitoring management machine is connected to the fan power control circuit, and the image monitoring management machine outputs commands Drive the output action of the remote remote control and remote signaling module, start the ventilation of the fan, and realize the remote monitoring and switching of the fan.

The automatic and remote control switching switch of the intelligent controller enables the automatic and remote control to work simultaneously and the automatic control to work and the remote control to be disconnected to switch between two working states.

Claims (2)

1, a kind of Long-distance Control ventilation unit that reaches automatically, it is characterized in that: it comprises ventilation blower (12), the intelligent controller (4) of control ventilation blower switching, humidostat (5), humidity regulator (6), SF6 gas monitoring instrument (7), be installed in the temperature sensor (8) on the humidostat, be installed in the humidity sensor (9) on the humidity regulator, be installed in the SF6 sensor (10) on the SF6 gas monitoring instrument, intelligent controller (4) is powered by AC 220V power supply (1), by A.C. contactor (11) control ventilation blower (12) switching, intelligent controller (4) respectively with humidostat (5), humidity regulator (6), SF6 gas monitoring instrument (7) connects; Intelligent controller (4) also is connected with remote control remote signal module (3), and the remote control remote signal module is connected with the picture control supervisor (2) of centralized control center, and above-mentioned automatic ventilation equipment is realized remote monitoring; Intelligent controller is control module with the single-chip microcomputer.

2, the Long-distance Control ventilation unit that reaches automatically according to claim 1, it is characterized in that: its intelligent controller comprises automatic testing circuit, the signal of temperature sensor, humidity sensor, the collection of SF6 sensor is converted to analog electrical signal by humidostat, humidity regulator, SF6 gas monitoring instrument, imports after the A/D converting unit is converted to data signal in the singlechip CPU; Output driving circuit, the work of single-chip microcomputer output signal control ventilation blower; Alarm lamp, automatically and the change-over switch of Long-distance Control, the panel of parameter is set; Output alarm circuit, the single-chip microcomputer output alarm signal transfers to the picture control supervisor by the remote control remote signal module, by the picture control supervisor automatic ventilation equipment is monitored.