TW201722537A - Dust collector control system and control method - Google Patents

Abstract

Provided are a system and a method for performing control such that a dust collector operates efficiently, on the basis of measurement data of particulate matter volume, particulate matter concentration, and the like, measured by particulate matter sensors which have been disposed in a plurality of locations such as an intake port and an intake path. A dust collector motor can be controlled to a rotation speed which is in accordance with the surrounding environment, when transferring dust and particulate matter with, as a medium, air that can be used in equipment and devices. The dust collector motor is equipped with a controller for controlling the rotational output of a dust collector fan via an inverter provided especially to operate dust collector equipment and devices. On the basis of measurement data measured by a measurement environment sensor/in-duct airflow pressure sensor, a signal of a measured value is wirelessly transmitted to the controller and the appropriate number of rotations for the dust collector motor is determined. When a command is issued from the controller to the inverter, a rotation speed control command for the dust collector motor is outputted so that the work environment is considered and power consumption of the dust collector motor is reduced at all times.

Description

Dust collector control system and control method

The present invention relates to a control system and a control method for a dust collector installed at a manufacturing site of various manufacturing plants, and more particularly to a dust amount, a dust concentration, and the like measured by a dust sensor disposed in an intake port and an intake path. The system and method for controlling the operation of the dust collector.

In the manufacturing site of a foundry, etc., dust such as metal powder is constantly generated due to grinding and cutting operations (deburring, sanding). Also, depending on the manufacturing process, smoke, toxic gases, malodors, and the like may also occur.

These dusts are harmful to the human body and the environment. Therefore, dust is collected and dust-free in the workshop, and environmental protection must be paid attention to in the workshop and outside the workshop.

7 and 8 are schematic views showing the configuration of a conventional dust collector (system). As shown in Fig. 7, the operation of the dust collector motor is directly in the power supply drive circuit, and is rated at 50 Hz.

Alternatively, as shown in Fig. 8, the operation of the dust collector motor is performed by setting the frequency of the built-in inverter to control the number of rotations.

In the previous dust collector (system) of the previous mode as described above, In accordance with the operating conditions of the workshop, efficient operation is performed by adjusting the number of rotations of the dust collector motor.

On the other hand, Patent Document 1 discloses a dust collecting device for a ready-mixed concrete manufacturing plant, which has a plurality of suction ducts/suction ports, and a dust sensor is provided in the vicinity of each suction port, and is detected in each dust sensor. The dust concentration is adjusted by the inverter control to adjust the attractiveness of the two dust collectors, and the dust collecting device can be cleaned while reducing unnecessary energy waste.

Further, Patent Document 2 discloses an operation monitoring system for a dust collector of a casting line, in which a plurality of signal lines that are attached to the periphery of the dust collector and that measure various attributes are connected to the area unit, and further, based on the measured values of the sensors in the area unit, A system for monitoring the operation of the dust collector by the remote unit is calculated by calculating the amount of dust, the type of dust, the concentration of dust, and the like.

[Previous Technical Literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2010-76101

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2002-73152

However, in the dust collecting device described in Patent Document 1, it is possible to detect the dust concentration in each place by a plurality of dust sensors, and to control the operation of the dust device, thereby improving the efficiency of the entire dust device and saving energy. Application as a dust collector for large workshops where multiple suction ports must be configured Set.

In the monitoring system described in Patent Document 2, in the dust collector of the casting line, the amount of dust is obtained and calculated based on the measurement data obtained from the complex sensor, but the purpose is to detect the abnormality of the system. The manager can manually control the machine when an abnormality occurs, but the operation of the dust collecting device is not controlled during normal operation, so as to achieve efficiency and energy saving.

On the other hand, if the intake air pressure of the dust collector is extremely changed, there is an excessive burden on the dust collector motor.

In the present invention, the inventors of the present invention provide measurement data such as dust amount, dust concentration, and the like measured by a dust sensor disposed in a plurality of places such as an intake port and an intake path. A system and method for controlling in an efficient manner.

In view of the above-mentioned problem, the inventors of the present invention thought of the dust collector motor that can be controlled to respond to the number of rotations of the surrounding environment when transferring dust and dust as air for the equipment machine. The controller for controlling the rotation output of the dust collector fan is provided in the inverter provided for the operation of the dust collector device, and the measurement data measured by the environmental measurement sensor and the in-cavity wind pressure sensor are used as a reference. The signal of the measured value is wirelessly transmitted to the controller, and the appropriate number of rotations of the dust collector motor is estimated. When the controller issues a command to the inverter, the operating environment can be considered by the rotation number control command of the output dust collector motor. , often reduce the power consumption of the dust collector motor.

That is, the present invention provides a control system for a dust collector, a dust collector having a plurality of suction ports, and a dust sensor in the vicinity of each air inlet for inhaling between the air suction ports and the dust collector. A wind pressure sensor is provided in the vicinity of the dust collector of the path, and a control unit that issues a control signal to the dust collector according to measurement data received from the dust sensor and the wind pressure sensor is provided.

In the control system of the dust collector of the present invention, one or a plurality of wind pressure sensors are provided at positions different from the vicinity of the dust collector of the intake path, and one or a plurality of positions are provided at positions different from the vicinity of each of the intake ports. Dust sensors are also available.

Thereby, the wind pressure at a position different from the vicinity of the dust collector and the measurement data of the dust amount at a position different from the vicinity of each air inlet can be obtained, and the control unit can perform more precise control.

In the control system of the dust collector of the present invention, the dust sensor and the wind pressure sensor are provided with wireless communication means for communicating with the control unit.

As a result, the burden on the machine and the wiring can be reduced in a manufacturing environment where the environment such as dust and temperature is high.

Moreover, the present invention provides a dust collector control method, characterized in that in a dust collector having a plurality of intake ports, a dust sensor is provided in the vicinity of each intake port to communicate with each of the suction ports and the dust collector. a wind pressure sensor is provided in the vicinity of the dust collecting device between the suction paths, and the measurement data is received from the dust sensors and the wind pressure sensor in the control unit, and the dust collector is issued according to the measurement data. Control signal control method.

In the control method of the dust collector of the present invention, one or a plurality of wind pressure sensors are provided at positions different from the vicinity of the dust collector of the intake path, and one or a plurality of positions are provided at positions different from the vicinity of each of the intake ports. Dust sensors are also available.

Thereby, the wind pressure at a position different from the vicinity of the dust collector and the measurement data of the dust amount at a position different from the vicinity of each air inlet can be obtained, and the control unit can perform more precise control.

In the dust collector control method of the present invention, the dust sensor and the wind pressure sensor are provided with wireless communication means for communicating with the control unit.

As a result, the burden on the machine and the wiring can be reduced in a manufacturing environment where the environment such as dust and temperature is high.

As described above, the control system and the control method of the dust collector according to the present invention can measure the dust amount, the dust concentration, and the like according to the dust sensor disposed in a plurality of places such as the intake port and the intake path. The measurement data enables the dust collector to operate in an efficient manner.

Thereby, the power consumption of the dust collector can be reduced, and the amount of carbon dioxide emissions can be reduced. Moreover, the durability of the dust collector can be extended without impairing the durability of the components such as the motor of the dust collector.

1‧‧‧Microparticle sensor

2‧‧‧Microparticle sensor

3‧‧‧Microparticle sensor

A‧‧‧dust sensor

B‧‧‧dust sensor

C‧‧‧dust sensor

D‧‧‧dust sensor

1 is a schematic diagram showing a control system of a dust collector according to an embodiment of the present invention. A diagram of the overall outline of the system.

Fig. 2 is a view schematically showing an overall outline of a control system of a dust collector according to another embodiment of the present invention.

Fig. 3 is a view schematically showing an overall outline of a control system of a dust collector according to still another embodiment of the present invention.

Fig. 4 is a view schematically showing an internal structure of a control unit in an embodiment of a control system and a control method of the dust collector of the present invention.

Fig. 5 is a view schematically showing an internal structure of a control unit in an embodiment of a control system and a control method of the dust collector of the present invention.

Fig. 6 is a chart showing a specific example of control based on measurement data in an embodiment of a control system and a control method of the dust collector of the present invention.

Fig. 7 is a schematic view showing the configuration of a conventional dust collector (system).

Fig. 8 is a schematic view showing the configuration of a conventional dust collector (system).

Hereinafter, the best mode of the control system and the control method for implementing the dust collector of the present invention will be described in detail with reference to the accompanying drawings. 1 to 8 are views showing an embodiment of the present invention, and in the drawings, the same reference numerals are given to the same items, and the basic structure and operation are the same.

Fig. 1 is a view schematically showing an overall outline of a control system of a dust collector according to an embodiment of the present invention.

In Fig. 1, the system has a dust collector installed at each of the suction ports A to D at the manufacturing site, and a control unit for controlling the same, and a dust sensor is provided in the vicinity of each suction port to connect the suctions. Air inlet and dust collector suction The structure of the wind pressure sensor is provided near the dust collector of the path.

The dust sensors A~D measure the amount of dust near the suction port in real time, and send the measurement data to the control unit by wireless communication.

The wind pressure sensor measures the wind pressure near the dust collector of the suction path in real time, and sends the measurement data to the control unit by wired communication.

The control unit analyzes the measurement data received from the dust sensors A~D, and sends a control signal to the dust collector. For example, it is possible to increase the amount of intake of the dust collector when the amount of dust in the vicinity of each intake port is large, and to reduce the amount of intake of the dust collector when the amount of dust in the vicinity of each intake port is small. Moreover, even if the amount of dust in the vicinity of each intake port is small, it is possible to control so as to secure a predetermined wind pressure for protecting the dust collector motor.

Fig. 2 is a view schematically showing an overall outline of a control system of a dust collector according to another embodiment of the present invention.

In the embodiment shown in Fig. 1, the present system is also provided with a structure of a wind pressure sensor at a position different from the vicinity of the dust collector of the intake path.

The control unit can perform more precise control by using the measurement data of the wind pressure at a position different from that near the dust collector.

Fig. 3 is a view schematically showing an overall outline of a control system of a dust collector according to still another embodiment of the present invention.

In the embodiment shown in Fig. 2, the present system is also provided with a structure of a dust sensor at a position different from the vicinity of each intake port.

The control unit can perform more precise control by using measurement data of the amount of dust at a position different from the vicinity of each intake port.

In the control system of the dust collector according to each of the above embodiments, the dust sensor and the wind pressure sensor provided in the manufacturing line are all provided with wireless communication means for communicating with the control unit. As a result, the burden on the machine and the wiring can be reduced in a manufacturing environment where the environment such as dust and temperature is high.

[Example 1]

Embodiments of the control system and control method of the dust collector of the present invention are disclosed below.

4 and 5 are views schematically showing an internal structure of a control unit in an embodiment of a control system and a control method of the dust collector of the present invention.

Figure 4 shows the internal structure of the inverter for controlling the motor in the control panel of the dust collector. Figure 5 shows the inverter that is not included in the control panel of the dust collector for motor control. The internal structure of the time.

As shown in Fig. 4, the control system of the dust collector of the present invention is constructed by connecting a controller to a control panel of a dust collector provided. In the controller, according to the reference dust concentration preset in the microcomputer, the dust amount data measured by the microparticle sensors 1~3 (dust sensor) and the wind pressure sensor in the duct The measured wind pressure value is calculated, and the optimum number of rotations of the dust collector motor is calculated based on the calculation result, and a signal for controlling the number of rotations of the dust collector motor is issued to the built-in inverter of the dust collector control panel.

As shown in FIG. 5, when the controller of the inverter built-in type is used, in the controller, according to the reference dust concentration preset to the microcomputer, The dust amount data measured by the microparticle sensor 1~3 (dust sensor) is calculated by the wind pressure value measured by the wind pressure sensor in the duct, and the optimal dust collector motor is calculated according to the calculation result. The number of rotations, and a signal for controlling the number of rotations of the dust collector motor is issued to the built-in inverter of the controller.

Fig. 6 is a chart showing a specific example of control based on measurement data in an embodiment of a control system and a control method of the dust collector of the present invention.

As shown in Fig. 6, after about 10 minutes from the start of operation, the operation is performed at a rated frequency of 50 Hz because of the large amount of dust. After about 30 minutes from the start of the operation, since the amount of dust is stably falling at a low level, switching to the lowest frequency is 30 Hz. Control of the operation.

The frequency is determined between the nominal frequency (50 Hz) and the lowest frequency (30 Hz) based on other microparticle sensor values and wind pressure sensor values.

Although the specific embodiment has been disclosed and described with respect to the control system and the control method of the dust collector of the present invention, the present invention is not limited thereto. As long as it is a person skilled in the art, various modifications and improvements can be made to the structure and function of each of the above-described embodiments without departing from the gist of the present invention.

[Industrial use possibility]

The control system and the control method of the dust collector of the present invention are for the purpose of improving the working environment, reducing the consumption power and reducing the carbon dioxide emission in the construction materials or equipment of the foundry, the metal processing finished workshop, the recycling workshop, and the like. Imported as a control system for the existing dust collector.

A‧‧‧dust sensor

B‧‧‧dust sensor

C‧‧‧dust sensor

D‧‧‧dust sensor

Claims (10)

The utility model relates to a control system of a dust collector, which is a control system of a dust collector with a plurality of suction ports, characterized in that: a dust sensor is arranged near each air inlet; and an air suction path is connected between each air inlet and the dust collector. a wind pressure sensor is disposed in the vicinity of the dust collector; and a control unit for issuing a control signal to the dust collector according to the measurement data received from the dust collecting sensor and the wind pressure sensor; the control unit is based on The reference dust concentration set in advance by the microcomputer, the amount of dust measured by the dust sensor, and the wind pressure value measured by the wind pressure sensor are calculated, and the rotation of the dust collector motor is calculated based on the calculation result. The number is controlled. The control system of the dust collector according to the first aspect of the invention, wherein the control unit controls the number of revolutions of the dust collector motor based on the calculation result, and is based on a reference dust concentration set in advance on the microcomputer, Calculating the amount of dust measured by the dust sensor and the wind pressure value measured by the wind pressure sensor, using the reference dust concentration as a reference, and when the amount of dust is large, by the rated frequency The dust collector is operated to increase the amount of intake, and when the amount of dust is small, the amount of intake of the dust collector is reduced by operating the dust collector between the rated frequency and the lowest frequency. Such as the dust collector described in item 1 or 2 of the patent application scope In the control system, the control unit controls the dust collector motor while ensuring a predetermined wind pressure. The control system of the dust collector according to the first, second or third aspect of the invention, wherein the dust collector is installed at a manufacturing site of a manufacturing plant; and the air intake ports are respectively disposed at a manufacturing site thereof. Multiple projects. The control system of the dust collector according to the first aspect, the second item, the third item or the fourth item of the invention, wherein the dust sensor or the wind pressure sensor is provided with the control unit A means of wireless communication for communication. A dust collector control method is provided in a dust collector having a plurality of suction ports, and a dust sensor is provided in the vicinity of each air inlet, and a wind pressure is provided in the vicinity of the dust collector that communicates with an air intake path between each air inlet and the dust collector a sensor, and a control method for the dust collector of the control unit that sends a control signal to the dust collector according to the measurement data received from the dust collecting sensor and the wind pressure sensor, wherein the control unit is The calculation is performed based on the reference dust concentration set in advance on the microcomputer, the amount of dust measured by the dust sensor, and the wind pressure value measured by the wind pressure sensor, and the dust collector is calculated based on the calculation result. The manner of the number of rotations of the motor sends a control signal to the aforementioned dust collector. The control method of the dust collector described in claim 6 of the patent application, wherein The control unit sends a control signal to the dust collector according to the calculation result, and calculates the number of revolutions of the dust collector motor, and based on the reference dust concentration preset in the microcomputer, the amount of dust measured by the dust sensor, The calculation is performed by the wind pressure value measured by the wind pressure sensor, and the reference dust concentration is used as a reference. When the amount of dust is large, the amount of air intake is increased by operating the dust collector at a rated frequency, and the amount of dust is small. At the time of the operation, the amount of intake of the dust collector is reduced by operating the dust collector between the rated frequency and the lowest frequency. The method of controlling a dust collector according to claim 6 or 7, wherein the control unit issues a control signal to the dust machine while ensuring a predetermined wind pressure in order to protect the dust collector motor. The utility model relates to a control system of a dust collector, which is a control system of a dust collector with a plurality of suction ports, characterized in that: a dust sensor is arranged near each air inlet; and an air suction path is connected between each air inlet and the dust collector. a wind pressure sensor is disposed in the vicinity of the dust collector; and a control unit that sends a control signal to the dust collector according to the measurement data received from the dust sensor and the wind pressure sensor; the control unit is based on the advance The reference dust concentration set in the microcomputer, the amount of dust measured by the dust sensor, and the wind pressure value measured by the wind pressure sensor are calculated, and the reference dust concentration is used as a reference, and the amount of dust is increased. By operating at the rated frequency The dust collector increases the amount of intake air, and when the amount of dust is small, it controls by reducing the amount of intake of the dust collector by operating the dust collector at the lowest frequency. A control method for a dust collector, characterized in that: in a dust collector having a plurality of intake ports, a dust sensor is provided in the vicinity of each intake port; and the aforementioned air suction path is provided between each intake port and the dust collector a wind pressure sensor in the vicinity of the dust collector; in the control unit, the measurement data is received from the dust sensors and the wind pressure sensor, and the calculation data is calculated according to the measurement data, and the dust amount is compared with the reference dust concentration. For a long period of time, the dust collector is operated at a rated frequency, and when the amount of dust is small, the dust collector is operated at the lowest frequency, and a control signal is issued to the dust collector.