CN110647095A - Sewage and wastewater intelligent control cabinet - Google Patents
Sewage and wastewater intelligent control cabinet Download PDFInfo
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- CN110647095A CN110647095A CN201810674737.XA CN201810674737A CN110647095A CN 110647095 A CN110647095 A CN 110647095A CN 201810674737 A CN201810674737 A CN 201810674737A CN 110647095 A CN110647095 A CN 110647095A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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Abstract
The invention relates to an intelligent sewage and wastewater control cabinet which comprises a cabinet body and a cabinet door, wherein the cabinet body is arranged in rows from top to bottom, a first row of a dual-power switch is arranged at the upper part in the cabinet body, a second row of the dual-power switch is provided with an air switch I and a contactor I, a third row of the dual-power switch is provided with a PLC module, an intermediate relay, an air switch II and a fuse, a fourth row of the dual-power switch, a thermal relay and a contactor II, a fifth row of the dual-power switch is provided with a mutual inductor, a sixth row of the dual-power switch is provided with a terminal, the PLC module is connected with a communication module, the communication module is provided with a wireless module, the cabinet door is provided with an ammeter, a voltmeter and a button indicating lamp area, and. The invention greatly reduces the participation of personnel in the working state of the equipment, reduces the personnel cost, reduces the risk and improves the working efficiency.
Description
Technical Field
The invention relates to a control cabinet, in particular to an intelligent control cabinet.
Background
Original non-intelligent control cabinet needs personnel to watch on day night, and control, detection all need consume great manpower and efficiency are lower, and the degree of accuracy does not have effectual guarantee yet, also can't diagnose the problem place fast when system fault.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provide the intelligent sewage and wastewater control cabinet which greatly reduces the participation of personnel in the working state of equipment, reduces the personnel cost, reduces the risk and improves the working efficiency.
The technical scheme is as follows: in order to solve the technical problem, the intelligent sewage and wastewater control cabinet comprises a cabinet body and a cabinet door, wherein the cabinet body is arranged in rows from top to bottom, a first row of double-power-supply switches is arranged at the upper part in the cabinet body, a second row of air switches I and contactors I is provided with air switches I, a third row of PLC modules, an intermediate relay, an air switch II and a fuse are arranged, a fourth row of soft start modules, a thermal relay and a contactor II are arranged, a fifth row of mutual inductors is provided with terminals, a sixth row of PLC modules is provided with terminals and is connected with a communication module, a wireless module is arranged on the communication module, an ammeter, a voltmeter and a button indicating lamp area are arranged on the cabinet door, and four paths of field equipment instrument control circuits are arranged in the cabinet body.
And the third row in the cabinet body is provided with two three-way air switches, one-way air switch and two fuses.
The fourth row in the cabinet body is provided with two soft start modules, two thermal relays and four contactors II, wherein the two contactors II are arranged side by side with the thermal relays, and the rest two contactors are arranged on the lower portion of the thermal relays.
The wireless module is connected with the mobile equipment through wireless signals.
The PLC module is connected with the field equipment instrument through a digital quantity signal, an analog quantity signal and a control signal.
And the communication module is connected with the touch screen or the DCS module or the industrial personal computer.
The four-path field device instrument control circuit comprises two paths of power supply inlet wires, the outlet end at the lower end of a double power supply is connected to each branch air switch, the first and the second paths of air switches are connected to respective soft start module access terminals, the connecting wire from the soft start module to the terminal passes through a mutual inductor, and the third and the fourth paths of air switches are connected to respective contactors and then connected to the terminals after being connected to a thermal relay.
The DCS module is a distributed control module and integrates 4C technologies such as computer, communication, display and control.
The industrial personal computer is an industrial control computer.
The local control cabinet of the equipment, the interlocking and automatic control in the domestic sewage treatment device system are realized by the PLC in the local cabinet, the operation and fault signals of the equipment are left on the terminal row in the local control cabinet and are monitored by the upper computer in the factory, and the signals are hard contact signal interfaces. The local control cabinet is provided with a manual control switch and an automatic control switch, and when the local control cabinet is in a manual state, start and stop buttons of each electric point are arranged in the local control cabinet to realize manual control on the electric points; in the 'automatic' state, the automatic operation and interlocking in the system are realized by the PLC. In the automatic state, the PLC is controlled in an interlocking way as follows:
PLC interlocking control:
1. the sewage lift pump is installed in the equalizing basin according to float level switch automatic operation, requires as follows: low liquid level: stopping the pump; high liquid level: the pump is operated. And sending out an alarm signal when the fault occurs.
2. The sewage discharge pump is installed in the disinfection tank according to float level switch automatic operation, requires as follows: low liquid level: stopping the pump; high liquid level: and (5) operating. And sending out an alarm signal when the fault occurs.
3. The aeration fan and the sewage lifting pump run in a linkage mode, and the fan is started when the sewage lifting pump runs. When the sewage lifting pump stops running, the fan runs in a clearance mode, and is started for 30 minutes and stopped for 15 minutes. And when the fan fails, an alarm signal is sent out.
4. The sludge pump runs at regular intervals according to the process requirement by a PLC in the on-site cabinet.
5. When any electric appliance is in failure, an alarm signal is sent out.
6. In order to facilitate maintenance, a lighting lamp and a 220V socket are arranged in the fan room.
Description of electrical connection in the present invention:
1. primary distribution circuit wiring diagram: the main power supply is accessed by double power supplies, two incoming line power supplies are counted, the outlet end at the lower end of the double power supplies is connected to each branch air switch, the first two air switches are connected to respective soft start access terminals, and the connection line from the soft start to the terminal passes through the current transformer; and the third four-way air switch is connected to the respective contactor and is connected to the terminal after being connected to the thermal relay.
2. Soft start circuit wiring diagram: one of three main power supply wires is selected as a control circuit power supply, and the control circuit power supply is connected from the upper wire to a secondary wire breaker and then connected to corresponding terminal contacts on KA and KM soft start shown in the figure. The KA is subsequently connected into a knob contact, and the knob is divided into two paths. One path is connected to a red button STP, then connected to ST and KM to be normally opened, connected in parallel with ST and KM, then connected to a KM coil junction, and then connected to a zero line N. The other path is connected to a KM normally open contact, then is connected to an indicator lamp HR and then is connected to a zero line N. And a normally open contact of the soft start fault is connected to the KA coil contact and then is connected to the zero line N.
3. Secondary control circuit diagram:
the circuit logic part: after the secondary control power supply 9 is connected with the KA1, the secondary control power supply is connected with one of a KA2 opening and closing point and a knob SP normally opening point, the KA2 normally closing point is connected with a KA1 coil and then connected to the zero line N, and the other normally opening point of the SP is connected with a KA2 coil and then connected to the zero line N. The No. 9 wire is connected to a 3KM normally open and a KA3 normally open and then connected to a 4KM normally closed contact together, and then connected to a KA3 coil and then connected to the neutral wire N. The No. 9 line is continuously connected to the 3KM normally open, is connected to the 3STP together after the 3ST, is connected to the SAC, is connected to the 4KM normally closed, is connected to the 3FR normally closed, and is connected to the 3KM coil and the 3HR indicator lamp simultaneously. The No. 9 line is connected to a KA3 normally closed, a 3KM normally open, a KA3 normally open and a 4KM normally open after being continuously connected to a KA1 normally open contact. The KA3 is normally closed and then connected to the SAC selection switch, and then connected to the connection point of the SAC and the 4KM normally closed. The KA3 is normally open and the 4MA is normally open and connected to the remaining pair of contacts of the SAC. The No. 9 line is continuously connected to a 4KM normally open contact, a 4ST, a 4STP, a SAC, a 3KM normally closed, a 4FR normally closed and a 4KM coil and a 4HR indicator lamp (all the same contacts are not the same, the same contacts can be added on the equipment, and the functions are consistent).
A dual power supply part: power indicator lamps are connected to the incoming signal points and the input knowledge points of the common power supply standby power supplies of the double power supplies so that operators can know power supply conditions conveniently.
4. Communication connection: PLC has ethernet communication interface, can be connected to the industrial computer through the switch according to customer's demand and make things convenient for central control room personnel remote monitoring operation.
The arrangement of the invention is as follows: the cabinet body door plate is arranged as follows, a current meter and a voltage meter are arranged above the cabinet body door plate, and the circular hole at the lower part is an indicator light button and a selection switch.
The list of electrical devices of the invention is given in the following table:
| serial number | Name (name) | Function of | Code number in the figure | |
| 1 | Dual-power switch | Two power supply inputs ensure that at least one power supply can supply |
||
| 2 | Air switch | Controlling the current of a single circuit to be switched on and off prevents short-circuiting from causing damage to the | QF | |
| 3 | Contactor | The 380V large current is controlled by controlling the on-off of the coil through 220V voltage and current to ensure the safety of | KM | |
| 4 | Intermediate relay | Relay device for various digital signals for preventing damage of current mutation to PLC | KA | |
| 5 | PLC | Reading input signal by programmable controller and outputting signal to control load according to | PLC | |
| 6 | Thermal relay | The motor is damaged by the excessive current of the house, and a fault signal is | FR | |
| 7 | Terminal with a terminal body | Connection between intelligent control cabinet and external signal source, load other control cabinet and other allowed | XT | |
| 8 | Soft start | Ensure that the current stably rises when the high-power equipment is started and ensure the normal starting of the |
||
| 9 | | FU | ||
| 10 | Current meter | Monitoring device current | ||
| 11 | Voltage meter | Monitoring a |
||
| 12 | Push button | Control unit for manual control of equipment | ST and |
|
| 13 | Rotary knob | Selection of device | SA | |
| 14 | Indicator light | Device operation or stop and fault display | HR |
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the air switch is reasonable in overall structure arrangement, and the air switch controls the on-off of the current of a single circuit to prevent the damage caused by short circuit and relative load; the contactor controls 380V heavy current by controlling the on-off of a coil of the contactor through 220V voltage current, so that the control safety is ensured; the intermediate relay is an adoptive device of various digital signals, and prevents the PLC from being damaged by sudden current change; the PLC module controls the load; the fuse protects the PLC module; through configuration communication module and wireless module, make each unit of being controlled break away from to rely on personnel manual control on original basis, alleviate personnel's cost of using, collect the signal centralization of original instrument and meter to the central control system, can read at man-machine interaction interface, the loaded down with trivial details that personnel that save read to the scene, automatic corresponding equipment work of control according to equipment feedback information, the degree of accuracy can effectively be guaranteed, can find the problem place rapidly according to the instrument and meter that the equipment was taken when the equipment broke out, in time maintain and handle, can resume the work of equipment in the shortest time.
Drawings
FIG. 1 is a schematic structural view of a cabinet body and a cabinet door according to the present invention;
FIG. 2 is a schematic diagram of the control architecture of the present invention;
FIG. 3 is a wiring diagram of the primary power distribution circuit of the present invention;
FIG. 4 is a connection diagram of the soft start circuit of the present invention;
fig. 5 is a connection diagram of the secondary control circuit of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 and 2, the intelligent control cabinet for sewage and wastewater comprises a cabinet body 1 and a cabinet door 2, wherein the cabinet body 1 is arranged in rows from top to bottom, a first row in the upper part of the cabinet body 1 is provided with a dual-power switch 3, a second row is provided with an air switch i 4 and a contactor i 5, a third row is provided with a PLC module 6, an intermediate relay 7, an air switch ii 8 and a fuse 9, a fourth row is provided with a soft start module 10, a thermal relay 11 and a contactor ii 12, a fifth row is provided with a mutual inductor 13, a sixth row is provided with a terminal 14, the PLC module 6 is connected with a communication module 15, the communication module 15 is provided with a wireless module 16, the cabinet door 2 is provided with an ammeter 17, a voltmeter 18 and a button indicating lamp zone 19, and the cabinet body 1 is internally provided with four field device instrument control circuits; the third row in the cabinet body 1 is provided with two three-way air switches, one-way air switch and two fuses 9; two soft start modules 10, two thermal relays 11 and four contactors II 12 are arranged in the fourth row in the cabinet body 1, wherein the two contactors II 12 are arranged side by side with the thermal relays 11, and the other two contactors are arranged at the lower parts of the thermal relays 11; the wireless module 16 is connected with the mobile equipment through wireless signals; the PLC module 6 is connected with a field device instrument through a digital quantity signal, an analog quantity signal and a control signal; and the communication module 15 is connected with the touch screen or the DCS module or the industrial personal computer.
As shown in fig. 3, the four field device instrument control circuits include two power supply incoming lines, the outgoing line end at the lower end of the dual power supply is connected to each air switch, the first and second air switches are connected to the respective access terminal 14 of the soft start module 10, the connection line from the soft start module 10 to the terminal 14 passes through the mutual inductor 13, and the third and fourth air switches are connected to the respective contactor, then connected to the thermal relay 11 and then connected to the terminal 14.
As shown in fig. 4, the soft start circuit wiring diagram: one of three main power supply wires is selected as a control circuit power supply, and the control circuit power supply is connected to a secondary wire air switch from the upper part, and then corresponding terminal contacts on KA and KM soft start shown in the figure are connected; follow-up access knob contact of KA, the knob divide two the tunnel, connect to ST and KM normally open after connecing red button STP all the way, ST and KM are parallelly connected, connect to KM coil contact afterwards, connect to zero line N again, another way connects to connect to indicator lamp HR behind the KM normally open contact and connects to zero line N again, soft start trouble normally open contact connects to and inserts zero line N behind the KA coil contact.
As shown in fig. 5, the secondary control circuit is as follows:
the circuit logic part: after the secondary control power supply 9 is connected with KA1, a switching point KA2 and a normally open point in a knob SP are connected, a normally closed point KA2 is connected with a coil KA1 and then connected to a zero line N, and the other normally open point of the knob SP is connected with a coil KA2 and then connected to the zero line N; the No. 9 wire is connected to a 3KM normally open and a KA3 normally open and then connected to a 4KM normally closed contact together, and then connected to a KA3 coil and then connected to the neutral wire N. The No. 9 line is continuously connected to the 3KM normally open, is connected to the 3STP together after the 3ST, is connected to the SAC, is connected to the 4KM normally closed, is connected to the 3FR normally closed, and is connected to the 3KM coil and the 3HR indicator lamp simultaneously. The No. 9 line is connected to a KA3 normally closed, a 3KM normally open, a KA3 normally open and a 4KM normally open after being continuously connected to a KA1 normally open contact. The KA3 is normally closed and then connected to the SAC selection switch, and then connected to the connection point of the SAC and the 4KM normally closed. The KA3 is normally open and the 4MA is normally open and connected to the remaining pair of contacts of the SAC. The 9 line is continuously connected to a 4KM normally open contact and a 4ST, then is connected to a 4STP, then is connected to a SAC, then is connected to a 3KM normally closed, then is connected to a 4FR normally closed, and then is connected to a 4KM coil and a 4HR indicator lamp.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (7)
1. The utility model provides a sewage waste water intelligent control cabinet which characterized in that: it comprises a cabinet body (1) and cabinet doors (2), the cabinet body (1) is arranged from top to bottom, a first row of double power switches (3) is arranged at the upper part in the cabinet body (1), a second row of air switches I (4) and contactors I (5) is arranged, a PLC module (6), an intermediate relay (7), an air switch II (8) and a fuse (9) are arranged in the third row, a soft start module (10), a thermal relay (11) and a contactor II (12) are arranged in the fourth row, a transformer (13) is arranged in the fifth row, a terminal (14) is arranged in the sixth row, the PLC module (6) is connected with a communication module (15), the intelligent cabinet is characterized in that a wireless module (16) is arranged on the communication module (15), an ammeter (17), a voltmeter (18) and a button indicating lamp area (19) are arranged on the cabinet door (2), and four field device instrument control circuits are arranged in the cabinet body (1).
2. The sewage and wastewater intelligent control cabinet of claim 1, wherein: and the third row in the cabinet body (1) is provided with two three-way air switches, one-way air switch and two fuses (9).
3. The sewage and wastewater intelligent control cabinet of claim 1, wherein: the fourth row is equipped with two soft start module (10), two thermorelay (11) and four contactor II (12) in the cabinet body (1), and wherein two contactor II (12) set up side by side with thermorelay (11), and remaining two are established in thermorelay (11) lower part.
4. The sewage and wastewater intelligent control cabinet of claim 1, wherein: the wireless module (16) is connected with the mobile device through wireless signals.
5. The sewage and wastewater intelligent control cabinet of claim 1, wherein: and the PLC module (6) is connected with the field equipment instrument through a digital quantity signal, an analog quantity signal and a control signal.
6. The sewage and wastewater intelligent control cabinet of claim 1, wherein: and the communication module (15) is connected with the touch screen or the DCS module or the industrial personal computer.
7. The sewage and wastewater intelligent control cabinet of claim 1, wherein: the four-path field device instrument control circuit comprises two paths of power supply inlet wires, the outlet end at the lower end of a double power supply is connected to each air switch, the first and the second paths of air switches are connected to the respective soft start module (10) access terminal (14), the connection line from the soft start module (10) to the terminal (14) penetrates through a mutual inductor (13), the third and the fourth paths of air switches are connected to the respective contactors, and then are connected to the thermal relay (11) and then are connected to the terminal (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810674737.XA CN110647095A (en) | 2018-06-27 | 2018-06-27 | Sewage and wastewater intelligent control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810674737.XA CN110647095A (en) | 2018-06-27 | 2018-06-27 | Sewage and wastewater intelligent control cabinet |
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| Publication Number | Publication Date |
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| CN110647095A true CN110647095A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810674737.XA Pending CN110647095A (en) | 2018-06-27 | 2018-06-27 | Sewage and wastewater intelligent control cabinet |
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| CN (1) | CN110647095A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308956A (en) * | 2020-03-27 | 2020-06-19 | 贵州楚天两江环境股份有限公司 | Sewage treatment remote monitering system |
-
2018
- 2018-06-27 CN CN201810674737.XA patent/CN110647095A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308956A (en) * | 2020-03-27 | 2020-06-19 | 贵州楚天两江环境股份有限公司 | Sewage treatment remote monitering system |
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