KR100426505B1 - Chain and flight breakdown detecting apparatus of water and sewage works and the method - Google Patents

Abstract

The present invention is to install a plurality of detection sensors on both sides of the left and right of the flight based on their detection for a predetermined period of time to detect the chain cutting or flight breakage and abnormality of the sensor to cut off the power early An apparatus and method for detecting a chain flight abnormality of a water and sewage treatment system are provided.

It comprises a detection unit provided to detect the left and right both ends of the flight while forming a set of a plurality of detection sensors in a predetermined location of the sedimentation basin; Comprising a preset time and the flight detection time of each of the detection sensor and a control unit for determining whether the chain cut or flight damage and detection sensor failure based on the difference and undetected, and set the detection time of each detection sensor And determining whether the detection sensor has detected flight, comparing the set time with the flight detection time of the detection sensor when detecting flight of the detection sensor, and cutting the chain according to whether the detection sensor has detected flight and the comparison result. In addition, it can be achieved by determining whether the flight is damaged or dislodged and whether the sensor is broken, and controlling the operation of the system according to the determination result.

Description

CHAIN AND FLIGHT BREAKDOWN DETECTING APPARATUS OF WATER AND SEWAGE WORKS AND THE METHOD}

The present invention relates to an apparatus and method for detecting a chain flight abnormality of a water and sewage treatment system capable of detecting an abnormality of a chain and a flight in a chain flight type water and sewage treatment system. The present invention relates to a chain flight abnormality detecting device and a method of a water and sewage treatment system to be blocked.

In general, in the water treatment facilities of water and sewage treatment plants, suspended solids in raw water flowing from general homes or industrial sites, decomposition and sedimentation steps using activated sludge, and supernatant from the sedimentation stage are supplied with oxygen from aeration tanks to breed aerobic bacteria. After the activating step, the supernatant is separated again from the secondary sedimentation basin, and the uppermost water passed through the tertiary sedimentation basin or filter paper is chemically discharged into the stream.

In such a water treatment facility, sediment is generated during the removal of suspended solids in raw water and decomposition of wastewater using activated sludge. In the sedimentation basin, a sedimentation lifter and a sludge collector for sediment (sludge) and bubble removal are essentially used. Shown is a chain flighted sludge collection device used in a typical sedimentation basin.

The sprocket 1 is installed in the settling basin above and below the front and rear ends, and two rows of chains 2 are installed on the bottom surface and the water surface of the settling basin to drive the power generated by the power generator 3. (4) to transfer to the sprocket (1) to be transported at a suitable speed, and by installing a flight (5) at equal intervals on the chain (2) to remove the bubbles not shown on the water surface of the sedimentation basin not shown And sludge deposited on the bottom of the sedimentation basin is collected and discharged by the hopper (7) to remove suspended matter and sediment in the raw water, and (6), which is not described, prevents sagging of the chain (2). Guide rail for

The breakage of the chain in such a device is to detect the breakage of the chain in the detector 13 based on the tension of the sensing rope 12 supported by the roller 11 in the lower portion of the chain 2 as shown in FIG. As shown in FIG. 3, the detector 21 is placed at the center of the flight 5 to detect the passage of the flight 5, and if the period is not constant, the chain 2 is broken or the flight 5 is broken.

However, this conventional chain and flight abnormality detection device has only one detector installed, so if the chain breaks or a problem occurs in a part far from the part where the detector is installed, the detection is delayed a little later and continues to operate. The chain was entangled or derailed, and the peripherals were damaged, causing a fatal accident to the device, as well as a lot of economic losses.

In addition, in the case of a flight, since only one detector is installed at the center of the flight, if one end or both ends of the flight are not detected at all and continue to operate, there is a disadvantage of causing additional damage.

Therefore, the present invention is to solve the above problems, by providing a plurality of detection sensors for detecting both ends of the flight in a set of a plurality of places in the settling basin chain based on their detection for a predetermined period It is an object of the present invention to provide an apparatus and method for detecting a chain flight abnormality of a water and sewage treatment system that detects a breakage or a breakage of a flight and an abnormality of a sensor and thus prevents further damage and damage by cutting off power early.

1 is a block diagram of a chain-flighted sludge collection device used for a general sedimentation basin.

Figure 2 is a schematic diagram of a conventional chain abnormality detection device.

Figure 3 is a schematic diagram of a conventional chain flight abnormality detection device.

Figure 4 is a block diagram of a chain flight abnormality detection device of the water and sewage treatment system according to the present invention.

5 is a diagram illustrating a schematic configuration and installation position of the sensing unit of FIG. 4.

6 is an installation position diagram of a sensing unit in the whole system.

<Description of the symbols for the main parts of the drawings>

1: sprocket 2: chain

3: power generator 4: drive chain

5: flight 6: guide rail

7: Hopper 100: operation panel

200: detection unit 300: control unit

400: warning unit 500: driving unit

Chain flight abnormality detection device of the water and sewage treatment system according to the present invention for achieving this object, is coupled to the chain at regular intervals to collect the bubbles floating on the water surface of the sedimentation basin and the sludge deposited on the bottom surface of the sedimentation basin with the hopper Flight to; In a chain-flighted water and sewage treatment device including a power generator for transmitting rotational power to a sprocket for transferring the chain, a plurality of detection sensors are formed at a predetermined location of the sedimentation basin and detect left and right ends of the flight. A detector configured to output a predetermined pulse upon flight detection; A control unit comparing the preset time with the flight detection time of each of the sensors and determining whether the chain is cut or the flight is separated and broken and the sensor is broken based on the difference and the undetected; A driving unit which drives or does not drive the power generator according to the control according to the determination of the control unit; It is characterized in that it comprises a warning unit for displaying whether the chain cut or flight departure and breakage and the failure of the detection sensor or generate an alarm sound under the control of the controller.

The control unit determines whether the chain is cut off and whether the flight deviates based on the detection time difference between the detection sensor installed to detect the left end of the flight and the detection sensor installed to detect the right end, and to detect the left end of the flight. Determining whether the flight is damaged or not based on the undetected within a predetermined time of the plurality of installed sensors or the right end of the flight, and detecting the right end of the flight. The output is detected, but if the detection of the pulse output from the detection sensor installed between the front and rear side is determined as a failure of the corresponding sensor.

The chain flight abnormality detection method of the water and sewage treatment system according to the present invention comprises: a sensing unit configured to detect left and right ends of the flight while forming a set of a plurality of detection sensors at a predetermined location of the sedimentation basin and outputting a predetermined pulse during flight detection; A control unit for determining whether the chain is cut or the flight is broken or dislodged, and whether the detection sensor is broken based on whether the detection unit has detected a flight; A method for detecting an abnormality of a chain flight in a water and sewage treatment device, comprising: a driving unit for driving a power generator under control of the control unit so that rotational power is transmitted to a sprocket so that the chain is transferred; Step 1; A second step of determining whether the sensing sensor detects a flight and comparing a flight sensing time of the sensing sensor with a time set in the first step when the sensing sensor detects a flight; A third step of determining whether the sensor is disconnected or broken or broken, and whether the sensor is broken according to flight detection of the sensor and the comparison result; And a fourth step of controlling operation of the system and generating an alarm sound according to the determination result of the third step.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

4 is a block diagram of the chain flight abnormality detection apparatus of the water and sewage treatment system according to the present invention. The operation panel 100, the detection unit 200, the control unit 300, the warning unit 400, and the driving unit 500 are shown. It is provided with the same reference numerals for the same parts as in the prior art.

The operation panel 100 is provided with a plurality of keys for inputting various control signals, the sensing unit 200 detects the flight 5, and the control unit 300 is input through the operation panel 100. In addition to controlling the overall operation of the system according to the command signal is to be determined based on the detection signal input from the detection unit 200, the breakage of the flight 5 and the chain (2) is determined by the drive unit 500 The warning unit 400 controls the operation of the control unit 300, under the control of the control unit 300, such as a breakage of the flight 5 and the chain abnormality occurs, such as to display this or generate an alarm sound, the driving unit 500 The power generator 3 is driven under the control of the controller 300.

FIG. 5 shows a schematic configuration and installation position of the sensing unit 200 and illustrates a state in which the sensing unit 200 is installed at three locations A, B, and C of the sedimentation basin, and prevents flight detection malfunction. In order to detect the flight (5) twice in a row in order to install a pair of two, each installation position (A, B, C) to detect the left and right both ends of the flight (5) Two detection sensors (AL1, AL2), (AR1, AR2), (BL1, BL2), (BR1, BR2), (CL1, CL2), and (CR1, CR2) are installed, respectively. Left detection sensors (AL1, AL2), (BL1, BL2), (CL1, CL2) and right detection sensors (AR1, AR2), (BR1, BR2), (CR1, CR2) (5) It should be installed a certain distance (eg 30cm) so as not to sense at the same time.

Although not shown, the sensing unit 200 is installed on the upper left and right ends of the flight 5 or the upper side of the bucket not shown to detect the passing of the flight 5 in the sedimentation basin. 5) can be configured to generate a predetermined pulse upon detection, an optical sensor that can operate in the water can be used.

In addition, the sensing unit 200 may be installed in a place where failure occurs frequently or in an easy to detect place in the sedimentation basin, and may be installed at positions A, B, and C as shown in FIG. 6.

In addition, the control unit 300 includes the sensors AL1 and AL2, AR1 and AR2, BL1 and BL2, BR1 and BR2, CL1 and CL2, and CR1 and CR2 of the sensing unit 200. It is equipped with a timer so as to know the difference in the sensed pulse input time from.

The present invention configured as described above is provided with two pairs of detection sensors (AL1, AL2), (AR1, AR2), (BL1, BL2), (BR1, BR2) On the basis of the difference in detection time from (CL1, CL2) and (CR1, CR2) and non-detection, chain cutting or flight departure and breakage and sensor failure are judged.

First, the detection sensors BL1 and BL2 installed at the B position based on the detection time of the left and right sensors AL1 and AL2 and AR1 and AR2 installed at the A position through the operation panel 100. Set the time detected by BR2) and the time detected by the detection sensors (CL1, CL2) and (CR1, CR2) installed at the C position.

For example, after detecting the flight 5a of the detection sensors AL2 and AR2 installed at the A position, the detection sensors BL1 and BR1 installed at the B position after 5 seconds detect the passing of the flight 5b and the detection sensor BL2. After detecting the flight 5b of BR2, 7 seconds later, the detection sensors CL1 and CR1 installed at the C position are set to sense the passing of the flight 5c.

In addition, the detection time of the left and right detection sensors (AL1 and AL2, AR1 and AR2), (BL1 and BL2, BR1 and BR2) and (CL1 and CL2, CR1 and CR2) installed at each position (A, B, C) Set the difference (eg 1 second). The setting of these detection times can be set differently according to the traveling speed.

In addition, the detection time difference between the left and right detection sensors (AL1 and AR1, AL2 and AR2), (BL1 and BR1, BL2 and BR2), and (CL1 and CR1, CL2 and CR2) can be set to use these detection values. Of course.

As described above, after setting the detection time, when the system is operated, the controller 300 controls the driver 500 to drive the system.

As the system is driven, the chain 2 and the flight 5 are moved. As shown in FIG. 5, the flight 5a is positioned at the A position, and when the flight 5a is detected by the detection sensors AL1 and AR1, the detection sensor is detected. A predetermined pulse is applied to the control unit 300 from the AL1 and AR1, and after a predetermined time (for example, 1 second), when the flight 5a is detected by the detection sensors AL2 and AR2, the detection sensor AL2, A predetermined pulse is applied to the control unit 300 from AR2).

In addition, after a predetermined time (for example, 5 seconds) elapses after inputting the sensing pulses of the sensing sensors AL2 and AR2, the flight 5b is positioned at the B position, and the flights 5b are detected by the sensing sensors BL1 and BR1. Is detected, a predetermined pulse is applied to the controller 300 from the detection sensors BL1 and BR1, and after a predetermined time (for example, 1 second), when the flight 5b is detected by the detection sensors BL2 and BR2, A predetermined pulse is applied to the controller 300 from the detection sensors BL2 and BR2, respectively.

After a predetermined time (for example, 7 seconds) elapses after the input of the detection pulses of the detection sensors BL2 and BR2, the flight 5c is positioned at the C position, and the flight 5c is detected by the detection sensors CL1 and CR1. If a predetermined pulse is applied to the control unit 300 from the detection sensors CL1 and CR1 when detected, and after a predetermined time (for example, 1 second), the flight 5b is detected by the detection sensors CL2 and CR2. A predetermined pulse is applied to the controller 300 from the sensors CL2 and CR2, respectively.

In this way, a sensing pulse is input from the sensing sensors AL1 and AR1 at the A position, and after a set time (for example, 1 second) therefrom, a sensing pulse is input from the sensing sensors AL2 and AR2 and the set time ( Example: 5 seconds), the sensing pulse is input from the sensing sensors BL1 and BR1 at the B position, and after a predetermined time (for example, 1 second), the sensing pulse is input from the sensing sensors BL2 and BR2, and the predetermined pulse therefrom. After a time (eg 7 seconds), a sensing pulse is input from the sensing sensors CL1 and CR1 at the C position, and after a predetermined time (eg 1 second) thereafter, a sensing pulse is input from the sensing sensors CL2 and CR2. That is, detection between each detection sensor (AL1, AL2), (AR1, AR2), (BL1, BL2), (BR1, BR2), (CL1, CL2), (CR1, CR2) set by the operation panel 100. The pulse input time and the time when the sensing pulse is actually input from the sensor (AL1, AL2), (AR1, AR2), (BL1, BL2), (BR1, BR2), (CL1, CL2), (CR1, CR2) If the same, the control unit 300 recognizes that the chain 2 and all the flights 5 are normal. It is such that the normal operation performed by controlling the driving unit 500. The

However, for example, after a predetermined time (e.g., 5 seconds) has elapsed after inputting a sensing pulse from the sensing sensors AL2 and AR2, a predetermined time (e.g .: 1) after inputting a sensing pulse from the sensing sensor BL1 again. Second) After the elapsed time, when the sensing pulse is input from the sensing sensors BL2 and BR2, the control unit 300 has no sensing pulse input from the sensing sensor BR1, but there is a sensing pulse input from the sensing sensor BR2. Since it is normal, it is determined that the failure of the detection sensor BR1 indicates the sensor failure through the warning unit 400 or generates an alarm sound.

The display of sensor failure may indicate which sensor is broken by blinking a plurality of light emitting diodes, and may generate an alarm sound through a buzzer or the like.

In addition, after a predetermined time (e.g., 5 seconds) has elapsed after inputting a sensing pulse from the sensing sensors AL2 and AR2 at the A position, a sensing pulse is input from the sensing sensor BL1 at the B position, and again a predetermined time (e.g., : 1 second) After the detection pulse is input from the detection sensor BL2 but the detection pulse from the detection sensors BR1 and BR2 is not input, the control unit 300 determines that the right end of the flight 5b located at the B position is It is considered to be damaged.

Accordingly, the control unit 300 stops the operation of the system through the driving unit 500, and displays the damage of the flight or generates an alarm sound through the warning unit 400.

In this case, as in the case of the sensor failure, the abnormal position may be displayed using a light emitting diode or the like, or, if the warning unit 400 has a character display function, so as to identify the location where the damage occurs.

Similarly, after a predetermined time (for example, 7 seconds) has elapsed after inputting the sensing pulses of the sensing sensors BR1 and BR2 at the B position, a sensing pulse is input from the sensing sensor CR1 at the C position, and a predetermined time (for example: 1 second), after the detection pulse from the detection sensor (CR2) is input but the detection pulse from the detection sensors (CL1, CL2) is not input, the control unit 300 is the left end of the flight (5c) located at the C position It is considered to be damaged.

Accordingly, the control unit 300 stops the operation of the system through the driving unit 500, and displays the damage of the flight or generates an alarm sound through the warning unit 400.

On the other hand, after a predetermined time (for example, 7 seconds) elapses after inputting the sensing pulses of the sensing sensors BR1 and BR2 at the B position, the sensing pulse is input from the sensing sensor CR1 at the C position, but from the sensing sensor CL1. If the detection pulse is input at a much later time (eg 10 seconds), the control unit 300 determines that the chain 2 is broken or the flight 5c leaves.

That is, when the chain 2 is broken or the flight 5 is detached, the corresponding chain line does not transmit power properly or the driving speed is significantly reduced, and the other side chain line transmits power normally, so that the flight 5 Decreased up and down (use a separate sensor to detect sagging up and down) or inclined left and right, so the detection time is different as inclined, so in this case, the chain (2) is broken or the flight (5) is determined to be off. .

Accordingly, the control unit 300 stops the operation of the system through the driving unit 500, and displays the occurrence of the abnormality or generates an alarm sound through the warning unit 400.

The present invention is not limited to the above described embodiments, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the present invention as defined in the appended claims.

As described above, the present invention has the following effects.

First, by detecting a double flight for a single flight by a plurality of pairs of detection sensors, the detection accuracy can be improved and the malfunction of sensor detection can be prevented.

Second, if the flight breaks or the chain is cut off, power can be cut off quickly to prevent additional breakage, thereby reducing the maintenance cost of the system.

Third, when the flight is broken, the chain is cut off, and the sensor is broken, the driver can quickly and visually inform them of the damage.

Claims (8)

A flight coupled to the chain at regular intervals to collect bubbles floating on the water surface of the sedimentation basin and to collect sludge deposited on the bottom surface of the sedimentation basin with a hopper; In the chain flight type water and sewage treatment apparatus including a power generator for transmitting a rotational power to the sprocket for performing the transfer of the chain, A detection unit configured to detect left and right ends of the flight while forming a set of a plurality of detection sensors at a predetermined location of the sedimentation basin and outputting a predetermined pulse during flight detection; A control unit comparing the preset time with the flight detection time of each of the sensors and determining whether the chain is cut or the flight is separated and broken and the sensor is broken based on the difference and the undetected; A driving unit which drives or does not drive the power generator according to the control according to the determination of the control unit; The chain flight abnormality detection device of the water and sewage treatment system according to the control of the control unit, characterized in that the chain cutting or flight departure and breakage and the failure of the detection sensor to indicate whether or not to generate an alarm sound. The method of claim 1, wherein the control unit Chain flight abnormality detection device of the water and sewage processor, characterized in that the chain is cut and the departure of the flight on the basis of the detection time difference of the detection sensor installed to detect the left end of the flight and the detection sensor installed to detect the right end. . The method of claim 1, wherein the control unit The water and sewage treatment apparatus of claim 1, wherein the plurality of detection sensors installed to detect the left end of the flight or the plurality of detection sensors installed to detect the right end of the flight determine whether the flight is damaged based on undetected within a predetermined time. Chain flight abnormality detection device. The method of claim 1, wherein the control unit The pulse output from the sensor installed in the front and rear of the sensor is detected, but if the pulse output from the sensor installed between the front and rear is not detected, the chain flight of the water and sewage processor characterized in that it is determined to be the failure of the sensor. Fault detection device. A detection unit configured to detect left and right ends of the flight while forming a set of a plurality of detection sensors at a predetermined location of the sedimentation basin and outputting a predetermined pulse when the flight is detected; A control unit for determining whether the chain is cut or the flight is broken or dislodged, and whether the detection sensor is broken based on whether the detection unit has detected a flight; In the chain flight abnormality detection method in the water and sewage treatment apparatus having a driving unit for driving the power generator under the control of the control unit to transmit the rotational power to the sprocket to transfer the chain, A first step of setting a detection time of each detection sensor; A second step of determining whether the sensing sensor detects a flight and comparing a flight sensing time of the sensing sensor with a time set in the first step when the sensing sensor detects a flight; A third step of determining whether the sensor is disconnected or broken or broken, and whether the sensor is broken according to flight detection of the sensor and the comparison result; And a fourth step of controlling operation of the system and generating an alarm sound according to the determination result of the third step. The method of claim 5, wherein Chain flight abnormality detection method of the water and sewage processor, characterized in that the chain is cut and the departure of the flight on the basis of the detection time difference of the detection sensor installed to detect the left end of the flight and the detection sensor installed to detect the right end. . The method of claim 5, wherein The water and sewage treatment apparatus of claim 1, wherein the plurality of detection sensors installed to detect the left end of the flight or the plurality of detection sensors installed to detect the right end of the flight determine whether the flight is damaged based on undetected within a predetermined time. Chain flight abnormality detection method. The method of claim 5, wherein The pulse output from the sensor installed in the front and rear of the sensor is detected, but if the pulse output from the sensor installed between the front and rear is not detected, the chain flight of the water and sewage processor characterized in that it is determined to be the failure of the sensor. Anomaly detection method.