TWM549659U - Electrostatic dust collector control device with automatic shutdown function - Google Patents

Description

Electrostatic dust collector control device with automatic shutdown function

The present invention relates to a control device for an electrostatic precipitator, and more particularly to a control device that can automatically turn off the power of the electrostatic precipitator automatically according to the environmental state.

For industrial dust or cooking fumes, general dust collection or filtering equipment often cannot effectively collect soot or dust particles, which may cause pollution problems and affect the surrounding environment or households. Therefore, for extremely fine particles of soot or dust, it is often filtered using an electrostatic precipitator.

Referring to FIG. 2, the working principle of the electrostatic precipitator 90 is to apply a high-voltage electric field to the electrostatic dust collector 91 disposed inside. When the air passes through the electrostatic precipitator 91, the soot particles or dust particles contained in the air are Ionized and adsorbed on the electrostatic precipitator 91 for air purification purposes. With the long-term use of the electrostatic precipitator 90, contaminants accumulate on the electrostatic precipitator 91, and the user needs to periodically remove and disassemble the electrostatic precipitator 91 for recycling purposes to ensure filtration.

As described in the previous paragraph, contaminants may accumulate on the electrostatic precipitator 91. As the accumulation of contaminants increases, a discharge effect is generated inside the electrostatic precipitator 90 to cause a high-pressure spark. When high-pressure sparks occur frequently, it may cause an accident such as an explosion or fire.

In view of the lack of protection mechanism of the existing electrostatic precipitator, it is impossible to automatically shut down and power off in a dangerous situation. The main purpose of the present invention is to provide an electrostatic dust collector control device with an automatic shutdown function, which can start the power failure protection according to the working state of the electrostatic precipitator.

In order to achieve the above objectives, the electrostatic dust collector control device with automatic shutdown function includes:

a power supply circuit that outputs an operating voltage;

a switching unit connected to the power circuit for controlling whether the operating voltage is output;

a high voltage generating circuit connected to the power circuit for converting the operating voltage to an output high voltage;

An abnormal indicator light is connected to the high voltage generating circuit and is lit with an abnormal discharge spark of the electrostatic precipitator;

a processing unit is connected to the switch unit and the abnormal indicator light, and can output a control command to interrupt the switch unit;

An operation setting interface is connected to the processing unit for the user to input a setting instruction, wherein the setting instruction includes a custom shutdown condition;

a sensing module is connected to the processing unit to sense an internal environment or an internal state of the electrostatic precipitator to output a sensing signal to the processing unit;

a memory module is connected to the processing unit for storing a setting command input by the user and a sensing signal sensed by the sensing module;

The processing unit calculates and analyzes a shutdown condition according to the user's custom shutdown condition in combination with the sensing signal, and the shutdown condition controls the switching unit to interrupt the output of the working voltage. Therefore, the creation can allow the user to set an initial shutdown condition according to the installation situation of the electrostatic precipitator. The processing unit will use the initial shutdown condition as a basis, and combine the sensing signals collected by the sensing module to perform a comprehensive analysis operation to obtain a shutdown. Condition, when the operation of the electrostatic precipitator meets the shutdown condition, it is judged that an accident may occur, and thus the switch unit is interrupted to perform the power failure protection, thereby achieving the purpose of automatic shutdown protection.

Please refer to FIG. 1 , which is a circuit block diagram of the control device for the electrostatic dust collector of the present invention, which includes:

a power supply circuit 10, which outputs an operating voltage;

a switching unit 20 is connected to the power supply circuit 10 for controlling whether the operating voltage is output. When the switching unit 20 is switched off, the output of the working voltage is interrupted to turn off the power of the electrostatic precipitator;

a high voltage generating circuit 30 is connected to the power circuit 10 for converting the operating voltage to an output high voltage, and the output high voltage is applied to the electrostatic precipitator 100 to generate an electric field on the electrostatic precipitator 100 to adsorb particles. The high voltage generating circuit 30 has a current detecting circuit 32 for detecting an operating current applied to the electrostatic precipitator 100;

An abnormality indicator lamp 40 is connected to the high voltage generating circuit 30. When the static electricity collecting plate 100 accumulates excessive dirt or foreign matter, the electrostatic precipitator 100 is prone to abnormal discharge sparks. The output current of the output may become low or high instantaneously. When the current detecting circuit 32 detects that the variation range of the working current reaches a predetermined range, for example, the variation range reaches 15 to 30%, the current detecting circuit 32 will illuminate the abnormality indicator lamp 40, in other words, the number of times the abnormal indicator lamp 40 is illuminated represents the number of abnormal discharges on the electrostatic precipitator 100;

A processing unit 50 is connected to the switch unit 20 and the abnormal indicator light 40, and can output a control command to interrupt the switch unit 20, and determine whether the switch unit 20 should be automatically interrupted according to the number of times the abnormal indicator light 40 is turned off. An input pin of the processing unit 50 can receive an indicator light signal, and the indicator signal changes the voltage level according to the blinking of the abnormal indicator light 40, so that the processing unit 50 can be based on the voltage on the input pin. The processing unit 50 can be a microprocessor, a programmable logic controller (PLC) or other circuit having a data analysis operation function;

An operation setting interface 60 is connected to the processing unit 50 for the user to input a setting command or an operation command. The operation setting interface 60 can be a touch display screen or a setting interface formed by a plurality of buttons or a dip switch. Wherein the setting instruction includes a user-defined shutdown condition;

A sensing module 70 is connected to the processing unit 50 and is responsible for sensing the state of the surrounding environment or the electrostatic precipitator to output a sensing signal. The sensing module 70 can include a plurality of different sensing components, such as but not limited to temperature sensing. a sensor, a humidity sensor, an ammeter, a static pressure gauge, an air flow meter, etc.; in another preferred embodiment, the sensing module 70 outputs a sensing signal in a digital format, the sensing signal of the digital format The processing unit 50 can be directly input to the processing unit 50. In another preferred embodiment, if the sensing module 70 outputs an analog signal of an analog format, an analogy can be connected between the sensing module 70 and the processing unit 50. / digital conversion circuit 72, the analog signal of the analog format is converted to a digital format and then input to the processing unit 50;

A memory module 80 is connected to the processing unit 50 for storing setting commands input by the user, such as an automatic shutdown condition and a sensing signal sensed by the sensing module 70.

The creation setting interface 60 is used by the user to set the shutdown condition within a preset safety range. For example, the number of times the abnormal indicator light 40 is turned off is used as the shutdown condition, and the preset safety range is assumed to be 50 to 300. The user can select any number of times within the range as the shutdown condition. For example, if 100 is selected, the processing unit 50 controls the switch unit 20 to stop the number of times the abnormal indicator light 40 is turned off 100 times. Force the electrostatic collector to automatically turn off to avoid accidents. The shutdown condition set by the user is stored in the memory module 80. In the present embodiment, the number of times of the abnormality indicator lamp 40 is used as the determination condition. However, the present invention is not limited thereto, and other parameters relating to the electrostatic precipitator may be used, for example, the internal temperature of the electrostatic precipitator.

In addition, the sensing module 70 in the present invention senses the environmental state around the electrostatic precipitator and provides it to the processing unit 50 for the processing unit 50 to perform a smart shutdown mode. The processing unit 50 will be based on the user's self. The shutdown condition is combined with the environmental state, and the appropriate shutdown condition is analyzed to close the switch unit 20. For example, if the user sets the abnormality indicator light 40 to the shutdown condition for 100 times, the processing unit 50 selects the number of times according to the environmental state according to the initial condition of 100 times, for example, the reference environment humidity is appropriately adjusted. If the ambient humidity is higher, the number of times is increased. Conversely, if the humidity is lower, the number of times can be reduced. The number of times of increase or decrease can be obtained by using a look-up table method or calculated according to the humidity value.

In addition to the use of ambient humidity as a predictor of smart shutdown, other sensing signals can be used, such as the temperature of the electrostatic precipitator, the operating current through the electrostatic precipitator, the air flow through the electrostatic precipitator, and the like. When the processing unit 50 calculates an appropriate shutdown condition in the smart shutdown mode, it is not limited to refer to only one single sensing signal, and may also calculate a suitable shutdown condition by referring to the plurality of sensing signals.

In summary, the electrostatic dust collector control device of the present invention has the following characteristics:

1. The power supply of the electrostatic precipitator can be automatically interrupted, the electrostatic precipitator can be stopped, the power failure protection can be started, and the occurrence of accidents can be reduced. There is no need to configure specific personnel to perform human monitoring around the clock.

Second, the user can set the shutdown condition within the preset safety range, so the parameters can be adjusted according to the installation environment of the electrostatic precipitator.

Third, in the smart shutdown mode, this creation is based on the user's custom shutdown conditions and combined with the environmental state, to analyze the appropriate shutdown conditions, so that the electrostatic precipitator can be used safely.

10‧‧‧Power circuit
20‧‧‧Switch unit
30‧‧‧High voltage generating circuit
32‧‧‧ Current detection circuit
40‧‧‧Abnormal indicator
50‧‧‧Processing unit
60‧‧‧Operation setting interface
70‧‧‧Sense Module
72‧‧‧ analog/digital conversion circuit
80‧‧‧ memory module
90‧‧‧Electrostatic dust collector
91,100‧‧‧Electrostatic dust collector

Figure 1: Circuit block diagram of the electrostatic dust collector control device with automatic shutdown function. Figure 2: Schematic diagram of the use of an existing electrostatic precipitator.

10‧‧‧Power circuit

20‧‧‧Switch unit

30‧‧‧High voltage generating circuit

32‧‧‧ Current detection circuit

40‧‧‧Abnormal indicator

50‧‧‧Processing unit

60‧‧‧Operation setting interface

70‧‧‧Sense Module

72‧‧‧ analog/digital conversion circuit

80‧‧‧ memory module

100‧‧‧Electrostatic dust collector

Claims (9)

An electrostatic dust collector control device with an automatic shutdown function for controlling an electrostatic dust collector, the electrostatic dust collector control device comprising: a power supply circuit for outputting an operating voltage, the working voltage is supplied to the electrostatic dust collector; a switching unit, connecting The power circuit is configured to control whether the working voltage is output; a high voltage generating circuit is connected to the power circuit for converting the working voltage to an output high voltage to be supplied to an electrostatic precipitator in the electrostatic precipitator, wherein the high voltage The generating circuit has a current detecting circuit for detecting whether the operating current supplied to the electrostatic precipitator changes to a predetermined amplitude; an abnormal indicator light is connected to the high voltage generating circuit, and when the working current changes up to the preset Set the amplitude, the abnormal indicator light is activated; a processing unit is connected to the switch unit and the abnormal indicator light; an operation setting interface is connected to the processing unit for the user to input a setting instruction, wherein the setting instruction includes Set a shutdown condition; a sensing module that connects to the processing unit to sense the surrounding environment or The internal state of the electrostatic precipitator outputs a sensing signal to the processing unit; a memory module is connected to the processing unit, and stores a setting command input by the user and a sensing signal sensed by the sensing module; wherein The processing unit calculates and analyzes a shutdown condition according to the user's custom shutdown condition in combination with the sensing signal, and the processing unit outputs the shutdown condition to the switch unit to cut off the working voltage to cause the electrostatic precipitator to operate. An electrostatic precipitator control device with an automatic shutdown function according to claim 1, wherein an analog/digital conversion circuit is connected between the sensing module and the processing unit, and the sensing signal of the analog analog format is a digital format. The electrostatic precipitator control device with an automatic shutdown function according to claim 2, wherein the operation setting interface is a touch display screen. The electrostatic dust collector control device with an automatic shutdown function according to claim 2, wherein the operation setting bread comprises a plurality of finger switches. The electrostatic precipitator control device with an automatic shutdown function according to any one of claims 1 to 4, wherein the custom shutdown condition includes the number of times the abnormality indicator has been extinguished for a period of time. The electrostatic precipitator control device with an automatic shutdown function according to claim 5, wherein the sensing module comprises a temperature sensor, a humidity sensor, an ammeter, a static pressure gauge or a wind gauge. One. The electrostatic precipitator control device with an automatic shutdown function according to claim 6, wherein the processing unit automatically increases or decreases the number of times the user displays the abnormal indicator light according to the sensing signal, and becomes the shutdown condition. The electrostatic precipitator control device with an automatic shutdown function according to claim 7, wherein the sensing signal includes a humidity signal, and the processing unit increases the number of times the user customizes the abnormality indicator as the humidity increases. In order to become the shutdown condition. The electrostatic precipitator control device with an automatic shutdown function according to claim 8, wherein the processing unit is a microprocessor or a programmable logic controller.