CN113759757B - Method and system for selecting and controlling operation mode of combined dredging equipment - Google Patents
Method and system for selecting and controlling operation mode of combined dredging equipment Download PDFInfo
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- CN113759757B CN113759757B CN202110941601.2A CN202110941601A CN113759757B CN 113759757 B CN113759757 B CN 113759757B CN 202110941601 A CN202110941601 A CN 202110941601A CN 113759757 B CN113759757 B CN 113759757B
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- 238000000034 method Methods 0.000 title claims abstract description 37
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- 238000001514 detection method Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 24
- 239000010720 hydraulic oil Substances 0.000 claims description 13
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- G05B19/00—Programme-control systems
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Abstract
The invention discloses a method and a system for selecting and controlling an operation mode of a combined dredging device, which comprises an acquisition operation mode, wherein the operation mode comprises a suction mode, a dredging mode and a combined mode; selecting the operation mode, and entering next-level working condition selection after the operation mode is selected; after one of the working conditions is selected, a command is sent to each control unit, and the equipment works according to a pre-stored mode. According to the invention, through selection of the pumping operation mode, the dredging operation mode and the combined operation mode, the functions of automatically pumping materials and dredging underground pipe network blockages are realized, the operation steps are reduced, the labor intensity is reduced, the automation level of operation is improved, and the use safety of equipment is improved.
Description
Technical Field
The invention relates to the field of environmental sanitation machinery, in particular to a method and a system for selecting and controlling an operation mode of a combined dredging device.
Background
Along with the increasing of urban population and the acceleration of the aging process of the underground pipe network, the pressure born by the urban underground pipe network is increasingly large, and a large amount of manpower and material resources are required to be input by municipal sanitation departments to ensure the smoothness of the urban underground pipe network, so that the normal and ordered operation of production and life of people is guaranteed. When urban underground pipe network blockage dredging and garbage cleaning operation is carried out, related operation and related parameter setting are firstly carried out by the conventional equipment, then dredging operation is carried out, advancing and retreating of a dredging hose are controlled in real time in the process to dredge and clean pipe network blockage, and sucking, transferring and cleaning work of pipe network garbage is carried out after dredging operation is finished.
Disclosure of Invention
The invention aims to provide a method and a system for selecting and controlling an operation mode of a combined dredging device, which realize the functions of automatically sucking materials and dredging underground pipe network blockages, reduce operation steps, reduce labor intensity, improve the automation level of operation and increase the use safety of the device.
The invention adopts the following technical scheme for realizing the aim of the invention:
the invention provides a method for selecting and controlling an operation mode of a combined dredging device, which comprises the following steps:
acquiring operation modes, wherein the operation modes comprise a suction mode, a dredging mode and a combination mode;
selecting the operation mode, and entering next-level working condition selection after the operation mode is selected;
after one of the working conditions is selected, a command is sent to each control unit, and the equipment works according to a pre-stored mode.
Further, the method for selecting the operation mode comprises the following steps:
when a suction mode is selected, entering suction medium selection, wherein the suction medium comprises a solid medium and a liquid medium, and selecting and confirming one medium;
the controller responds to the automatic/manual switch and turns on the automatic mode, will detect the automatic mode signal automatically;
when the automatic mode signal is detected, the controller is communicated with a chassis BBM to detect whether the rotating speed of the engine is in an idling state or not and automatically receives detection signals sent by a tank body material level sensor and a hydraulic oil low liquid level sensor of the detection unit;
the controller can automatically identify whether the alarm signal is in fault or not, if the rotating speed of the engine is in a non-idle state or the received detection signal gives an alarm, the controller is communicated with the display to display the reason of the alarm and sends the alarm signal to the alarm unit;
the controller is communicated with the chassis BBM to automatically reduce the rotating speed of the engine to idle speed, the fan is controlled not to work, and the suction valve and the anti-overflow valve are automatically closed after T5 time delay;
if the rotating speed of the engine is in an idling state and no fault alarm signal exists, the controller controls the suction air valve and the anti-overflow air valve to be automatically opened, and the air valve of the fan is automatically opened after the time delay is set;
the controller receives a detection signal sent by the fan rotating speed sensor, the display displays the material level percentage of the tank body and the rotating speed of the fan in real time at the moment, and the material is conveyed into the tank body through the sewage suction pipe.
Further, when a solid medium pre-storage mode is selected, the rotating speed of the fan is controlled to automatically reach a set value R1 for operation;
setting an optimal setting range P1 of the vacuum pressure of the tank body, and if the time that the vacuum pressure is less than the set value P1 is longer than T1 and the material in the tank body is not increased within the set time T2 through the material level sensor, reducing the rotating speed of the fan to the lowest rotating speed R2 of the fan;
when the vacuum pressure reaches a set value P1 or the material level sensor detects that the material in the tank body is increased, the rotating speed of the fan is automatically increased to a set value R1; if the vacuum pressure is greater than or equal to the set value P1 and the material in the material level sensor detection tank is not increased within the set time T3, automatically increasing the rotating speed of the fan at the moment until the material level sensor detects that the material in the tank is newly added, and stopping and maintaining the increase of the rotating speed;
if the vacuum pressure in the tank body is larger than a set value P2, the alarm unit gives an alarm, and the pressure relief air valve is automatically opened for T4 time and then is automatically closed.
Further, when a liquid medium pre-storage mode is selected, the rotating speed of the fan is controlled to automatically reach a set value R4 for operation;
setting an optimal setting range P3 of the vacuum pressure of the tank body, and if the time that the vacuum pressure is less than the set value P3 is longer than T1 and the material level sensor detects that the material in the tank is not increased within the set time T2, automatically reducing the rotating speed of the fan to the lowest rotating speed R2 of the fan;
when the vacuum pressure reaches a set value P3 or the material level sensor detects that the material in the tank body is increased, the rotating speed of the fan is automatically increased to a set value R4;
if the vacuum pressure is smaller than the set value P3 and the material in the tank is detected to increase within the set time T2 by the material level sensor, increasing the rotating speed of the fan until the vacuum pressure reaches the set value P3;
if the vacuum pressure in the tank body is larger than a set value P2, the alarm unit gives an alarm, and the pressure relief air valve is automatically opened for T4 time and then is automatically closed.
Further, the method for selecting the operation mode comprises the following steps:
when the dredging mode is selected, working condition selection is carried out, wherein the working condition selection comprises a conventional working condition, a soft blockage working condition and a hard blockage working condition, and one working condition is selected and confirmed;
the controller responds to the automatic/manual switch and turns on the automatic mode, will detect the automatic mode signal automatically;
when the automatic mode signal is detected, the controller is communicated with the chassis BBM to detect whether the rotating speed of the engine is in an idling state or not and automatically receives detection signals sent by a water tank liquid level sensor, a hydraulic oil low liquid level sensor and a water tank valve;
the controller can identify whether the alarm signal has a fault, if the rotating speed of the engine is in a non-idle state or the received detection signal has an alarm, the controller can communicate with the display to display the reason of the alarm and send the alarm signal to the alarm unit;
the controller can communicate with a chassis BBM to automatically reduce the rotating speed of the engine to idle speed and control the water pump not to work;
if the rotating speed of the engine is in an idle state and no fault alarm signal exists, the controller controls the opening of a water pump air valve, a reel advancing valve, a reel speed valve and a reel unloading valve;
the water pump runs according to a pre-storage mode, the dredging hose advances at the same time, the controller receives data sent by the water pump rotating speed sensor and the encoder, and the controller sends the data to the display to display the rotating speed of the water pump and the advancing meter number of the dredging hose.
Further, when a conventional working condition pre-storage mode is selected, the rotating speed and the flow of the water pump are controlled to automatically reach a set value W1 for operation, and the advancing speed of the dredging hose reaches a set value W2;
in the advancing process of the dredging hose, the controller receives a signal of the number of meters advanced by the encoder for the hose, and after the controller detects a water pump air valve opening signal, the controller can calculate the advancing speed of the dredging hose according to the number of meters advanced and time;
when the controller detects that the advancing speed of the hose is smaller than a set value W3, the controller sends an instruction to increase the rotating speed and the flow of the water pump to a set value W4, and the advancing speed of the dredging hose is reduced to a set value W5;
the controller sends a command to the reel advancing valve, when the hose advances to the set meter number S1, the reel advancing valve is powered off, and the reel retreating valve is powered on; when the hose retreats to the set meter number S1, the reel retreating valve loses power, the reel advancing valve is powered on, and the controller detects that the advancing speed of the hose is greater than a set value W3;
the controller sends an instruction to restore the rotating speed and the flow of the water pump to a set value W1 for operation, restore the advancing speed of the dredging hose to a set value W2, and advance the dredging hose;
the number of advancing meters of the dredging hose is set to be S2, and when the number of advancing meters of the dredging hose reaches a set value S2, the controller controls the alarm unit to give an alarm;
the controller sends a stop command to the water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, and the water pump and the dredging hose automatically stop;
the controller sends an opening command to the reel backing valve, the reel speed valve and the reel unloading valve, the dredging hose is automatically pulled back, when the controller receives an encoder signal and detects the initial value before the water pump air valve opening signal, the controller sends a closing signal to the reel backing valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
Further, when a soft blocking working condition pre-storage mode is selected, the rotating speed and the flow of the water pump are controlled to automatically reach a set value W5 to operate, and the advancing speed of the dredging hose reaches a set value W6;
in the advancing process of the dredging hose, the controller receives a signal of the number of meters advanced by the encoder for the hose, and after the controller detects a water pump air valve opening signal, the controller can calculate the advancing speed of the dredging hose according to the number of meters advanced and time;
when the controller detects that the advancing speed of the hose is smaller than a set value W3, the controller sends an instruction to increase the rotating speed and the flow of the water pump to a set value W4, and the advancing speed of the dredging hose is reduced to a set value W5;
the controller sends a command to the reel advancing valve, when the hose advances to the set meter number S1, the reel advancing valve is powered off, and the reel retreating valve is powered on; when the hose retreats to the set meter number S1, the reel retreating valve loses power, the reel advancing valve is powered on, and the controller detects that the advancing speed of the hose is greater than a set value W3;
the controller sends an instruction to restore the rotating speed and the flow of the water pump to a set value W1 for operation, the advancing speed of the dredging hose is restored to a set value W2, and the dredging soft controller responds to the situation that an automatic/manual switch is switched to an automatic mode, and automatically detects the advancing of an automatic mode signal;
the number of advancing meters of the dredging hose is set to be S2, and when the number of advancing meters of the dredging hose reaches a set value S2, the controller controls the alarm unit to give an alarm;
the controller sends a stop command to the water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, and the water pump and the dredging hose automatically stop;
the controller sends an opening command to the reel backing valve, the reel speed valve and the reel unloading valve, the dredging hose is automatically pulled back, when the controller receives an encoder signal and detects the initial value before the water pump air valve opening signal, the controller sends a closing signal to the reel backing valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
Further, when a hard blocking working condition pre-storage mode is selected, the rotating speed and the flow of the water pump are controlled to automatically reach a set value W7 to operate, and the advancing speed of the dredging hose reaches a set value W8;
in the advancing process of the dredging hose, the controller receives a signal of the number of meters advanced by the encoder for the hose, and after the controller detects a water pump air valve opening signal, the controller can calculate the advancing speed of the dredging hose according to the number of meters advanced and time;
when the controller detects that the advancing speed of the hose is smaller than a set value W3, the controller sends an instruction to increase the rotating speed and the flow of the water pump to a set value W4, and the advancing speed of the dredging hose is reduced to a set value W5;
the controller sends a command to the reel advancing valve, when the hose advances to the set meter number S1, the reel advancing valve is powered off, and the reel retreating valve is powered on; when the hose retreats to the set meter number S1, the reel retreating valve loses power, the reel advancing valve is powered on, and the controller detects that the advancing speed of the hose is greater than a set value W3;
the controller sends an instruction to restore the rotating speed and the flow of the water pump to a set value W1 for operation, restore the advancing speed of the dredging hose to a set value W2, and advance the dredging hose;
the number of advancing meters of the dredging hose is set to be S2, and when the number of advancing meters of the dredging hose reaches a set value S2, the controller controls the alarm unit to give an alarm;
the controller sends a stop command to the water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, and the water pump and the dredging hose automatically stop;
the controller sends an opening command to the reel backing valve, the reel speed valve and the reel unloading valve, the dredging hose is automatically pulled back, when the controller receives an encoder signal and detects the initial value before the water pump air valve opening signal, the controller sends a closing signal to the reel backing valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
Further, the method for selecting the operation mode comprises the following steps:
when the combined mode is selected, working condition selection is carried out, wherein the working condition selection comprises a medium suction working condition and a dredging working condition, and one working condition is selected and confirmed;
the controller responds to the automatic/manual switch and turns on the automatic mode, will detect the automatic mode signal automatically;
when the automatic mode signal is detected, the controller is communicated with the chassis BBM and detects whether the rotating speed of the engine is in an idling state or not and automatically receives detection signals sent by the tank body material level sensor, the water tank liquid level sensor, the hydraulic oil low liquid level sensor and the water tank valve;
the controller can identify whether the alarm signal is in fault, if the rotating speed of the engine is in a non-idle state or the received detection signal gives an alarm, the controller can communicate with the display to display the reason of the alarm and send the alarm signal to the alarm unit;
the controller can communicate with a chassis BBM to automatically reduce the rotating speed of the engine to idle speed and control the water pump and the fan not to work;
if the rotating speed of the engine is in an idling state and no fault alarm signal exists, the controller sends a starting command to the execution unit water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, the water pump runs according to the selected pre-storage mode, and meanwhile the dredging hose advances;
the controller receives data of the water pump rotating speed sensor and the encoder, and sends the data to the display through the CAN bus so as to display the rotating speed of the water pump and the advancing meter number of the dredging hose;
after dredging for a period of time, controlling the fan to operate according to the selected pre-stored mode, displaying the material level percentage of the tank body and the rotating speed of the fan in real time by the displayer at the moment, and conveying the material into the tank body through the sewage suction pipe;
when the controller detects a water pump stop signal, the dredging hose is controlled to automatically pull back;
when the controller receives the signal of the encoder and detects the signal as the initial value before the opening signal of the water pump air valve, the controller sends a closing signal to the reel retreating valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
The invention provides a combined dredging equipment operation mode selecting and controlling system, which comprises a detecting unit, an operating unit, a controlling unit, a display unit, an alarming unit and an executing unit, wherein the detecting unit is used for detecting the operation mode of the combined dredging equipment;
the detection unit comprises a water pump rotating speed sensor, a fan rotating speed sensor, a hose pull-back force sensor, a tank body material level sensor, a water tank liquid level sensor, an encoder and a hydraulic oil low liquid level sensor;
the operation unit comprises a water tank valve switch, a fan switch, a water pump switch, an automatic/manual switch, a one-key starting key and a one-key stopping key;
the alarm unit comprises a buzzer, a tank body material level high alarm lamp, a water tank liquid level low alarm lamp, a water tank valve closing alarm lamp and a dredging pipe back tension alarm lamp;
the execution unit comprises a fan air valve, a water pump air valve, a reel advancing valve, a reel retreating valve, a reel speed valve and a reel unloading valve.
The invention has the following beneficial effects:
according to the invention, through selection of the pumping operation mode, the dredging operation mode and the combined operation mode, the functions of automatically pumping materials and dredging underground pipe network blockages are realized, the operation steps are reduced, the labor intensity is reduced, the automation level of operation is improved, and the use safety of equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of a combined dredging device provided by an embodiment of the invention;
FIG. 2 is a diagram of an operation selection and control system of a combined dredge facility according to an embodiment of the present invention;
FIG. 3 is a flow chart of operation mode selection of a combined dredging device according to an embodiment of the invention;
fig. 4 is a flow chart of control of an operation mode of a combined dredging device according to an embodiment of the invention.
Detailed Description
The invention is further described with reference to specific examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention aims to provide a method for selecting and controlling an operation mode of a combined dredging device.
To achieve the above object, the present invention comprises:
as shown in fig. 1, the main components for implementing the method for selecting and controlling the operation mode of the combined dredging device include a blower 1, a pressure relief air valve 2, a suction air valve 3, an anti-overflow air valve 4, a sewage suction pipe 5, a dredging hose 6, a tank 7, a water tank 8, and a high-pressure water pump 9. As shown in fig. 2, the combined dredging equipment operation control system comprises the following components:
the detection unit 10 includes: 10-1 parts of a water pump rotating speed sensor, 10-2 parts of a fan rotating speed sensor, 10-3 parts of a hose pull-back force sensor, 10-4 parts of a tank material level sensor, 10-5 parts of a water tank liquid level sensor, 10-6 parts of an encoder and 10-7 parts of a hydraulic oil low liquid level sensor.
The operation unit 11 includes: the water tank valve switch 11-1, the fan switch 11-2, the water pump switch 11-3, the automatic/manual switch 11-4, the one-key start button 11-5 and the one-key stop button 11-6.
A control unit (controller) 12 and a display unit (display) 13.
The alarm unit 14 includes: a buzzer 14-1, a tank body material level high alarm lamp 14-2, a water tank liquid level low alarm lamp 14-3, a water tank valve closing alarm lamp 14-4 and a dredging pipe back tension alarm lamp 14-5.
The execution unit 15 includes: 15-1 of a fan air valve, 15-2 of a water pump air valve, 15-3 of a reel forward valve, 15-4 of a reel backward valve, 15-5 of a reel speed valve and 15-6 of a reel unloading valve.
The specific control flow is as follows:
when the urban underground pipe network combined dredging operation is carried out, as shown in fig. 3, firstly, the operation mode is selected according to the actual working condition of a construction site, and the steps comprise: the display 13 is communicated with the controller 12 through a CAN bus, an operator CAN select an operation mode on the display 13 through keys, the operation mode is divided into a pumping mode, a dredging mode and a combination mode, after one operation mode is selected, a confirmation key is pressed, next-level working condition selection is carried out, one option is selected, the confirmation key is pressed, the selection mode is completed, the system sends commands to the controller 12 through the CAN bus, the controller 12 sends commands to all control units, and the equipment works according to a pre-storage mode.
The invention designs three operation modes:
when the material is sucked, the suction mode is selected, as shown in fig. 4, the suction mode is selected by operating the selection key on the display 13, the confirmation key is pressed to enter the suction medium selection interface, the selection is divided into the solid medium and the liquid medium, one of the options is selected, the confirmation key is pressed, and the suction mode selection is completed.
The automatic/manual switch 11-4 of the operation unit 11 is used for switching the switch to an automatic mode, the controller 12 CAN automatically detect an automatic mode signal, when the automatic mode signal is detected, the controller 12 CAN communicate with a chassis BBM through a CAN bus to detect whether the rotating speed of an engine is in an idle state and automatically receives detection signals sent by a tank level sensor 10-4 and a hydraulic oil low level sensor 10-7 of the detection unit 10, the controller 12 CAN automatically identify whether an alarm signal is failed or not, if the rotating speed of the engine is not in the idle state or one of the signals gives an alarm, the controller 11 CAN communicate with a display 13 through the CAN bus to display an alarm reason, send the signal to a buzzer 14-1 of the alarm unit 14 and send out a buzzer, the detected alarm signal is simultaneously lightened corresponding to a tank level alarm lamp 14-2, the controller 12 CAN communicate with the chassis BBM through the CAN bus to automatically reduce the rotating speed of the engine to the idle state, and press a key to start a fan 1, so that a power execution component is prevented from being damaged; if the rotating speed of the engine is in an idling state and no fault alarm signal exists, a key of the control unit 11 is pressed to start the key 11-5, the controller 12 sends a command to the suction air valve 3 and the anti-overflow air valve 4 to be automatically opened, the fan air valve 15-1 is automatically opened after 2 seconds of delay, the situation that the pneumatic valve is not opened by misoperation of an operator is avoided, and the pressure of the tank body 7 is increased and materials cannot be sucked is avoided. The fan 1 automatically operates according to a pre-storage mode, the detection unit 10, the fan speed sensor 10-2, sends a detection signal to the controller 12, at the moment, the display 13 displays the material level percentage of the tank body and the fan speed in real time through CAN bus communication, and materials are conveyed into the tank body 7 through the sewage suction pipe 4.
Solid medium pre-storage mode: pressing a key to start a key 11-5, automatically enabling the rotating speed of a fan to reach a set value R1 (optimal rotating speed) to operate, setting an optimal set range P1 of vacuum pressure of a tank body, if the time that the vacuum pressure is smaller than the set value P1 is longer than T1, and detecting that materials in the tank body are not increased within a set time T2 through a material level sensor 10-4, automatically reducing the rotating speed of the fan to the lowest rotating speed R2 of the fan to operate at the moment, preventing energy consumption waste caused by the fact that the materials are not sucked, and automatically increasing the rotating speed of the fan to the set value R1 when the vacuum pressure reaches the set value P1 or the material level sensor detects that the materials in the tank body are increased; if the vacuum pressure is greater than or equal to the set value P1 and the material level sensor 10-4 detects that the material in the tank is not increased within the set time T3, the rotating speed of the fan is automatically increased at the moment until the material level sensor 10-4 detects that the material in the tank is newly added, the rotating speed increase is stopped and maintained (the rotating speed of the fan does not exceed the set value R3), if the vacuum pressure in the tank is greater than the set value P2, the buzzer 14-1 buzzes, and the pressure relief air valve 2 is automatically opened for T4 time and then is automatically closed.
Liquid medium pre-storage mode: a key is pressed to start a key 11-5, the rotating speed of the fan automatically reaches a set value R4 (optimal rotating speed) to operate, an optimal set range P3 of the vacuum pressure of the tank body is set, if the time that the vacuum pressure is smaller than the set value P3 is longer than T1, and the material in the tank is detected to be not increased within a set time T2 by the material level sensor 10-4, the rotating speed of the fan is automatically reduced to the lowest rotating speed R2 of the fan to operate, waste of energy consumption is prevented when the material is not sucked, and when the vacuum pressure reaches the set value P3 or the material level sensor 10-4 detects that the material is increased in the tank body, the rotating speed of the fan is automatically increased to the set value R4. If the vacuum pressure is smaller than the set value P3 and the material level sensor 10-4 detects that the material in the tank is increased within the set time T2, the rotating speed of the fan is increased until the vacuum pressure reaches the set value P3 (the rotating speed of the fan does not exceed the set value R3). If the vacuum pressure in the tank body is greater than a set value P2, the buzzer 14-1 buzzes, and the pressure relief air valve 2 is automatically opened for T4 time and then is automatically closed.
When the controller 12 detects a tank level alarm signal, a signal is sent to the buzzer 14-1 and an alarm is given to remind an operator that the storage of the tank body is close to a full tank state, the fan 1 is automatically closed by pressing the one-key stop button 11-6, the suction valve 3 and the anti-overflow valve 4 are automatically closed after the time T5 is delayed, and at the moment, the opening and closing states of the pneumatic valves are displayed on the display 13. If the fan 1 is not closed in time by an operator, the controller 12 controls the rotating speed of the fan to be reduced to the minimum rotating speed R2 and sends a closing command to the fan air valve 15-1 of the execution unit 15 after T6 time delay, the fan 1 is automatically closed, the suction air valve 3 and the anti-overflow air valve 4 are automatically closed after T5 seconds delay, the material is prevented from being sucked into the fan 1 to cause damage to parts, and the pneumatic valve is automatically closed to prevent the material from entering the fan system to cause damage to the fan 1 in the material transportation process.
The dredging operation mode is selected when the pipe network blockage is dredged, as shown in fig. 4, the dredging operation mode is selected by operating a selection key on a display 13, a confirmation key is pressed to enter a working condition selection interface, the working condition selection interface is divided into a working condition 1 (conventional), a working condition 2 (soft blockage) and a working condition 3 (hard blockage), the display 13 can display and recommend different dredging spray head types at the back of each working condition, one of the working conditions is selected, the confirmation key is pressed, and the dredging mode selection is completed.
The automatic/manual switch 11-4 is turned on to an automatic mode through the operation unit 11, the controller 12 detects an automatic mode signal, when the automatic mode signal is detected, the controller 12 communicates with the chassis BBM through the CAN bus to detect whether the engine speed is in an idle state and automatically receives detection signals sent by the detection unit 10, the water tank liquid level sensor 10-5, the hydraulic oil low liquid level sensor 10-7 and the water tank valve closing 11-1, and the controller 12 identifies whether a fault alarm signal exists, if the engine speed is not in the idle state or one of the signals has an alarm, the controller 12 communicates with the display 13 through the CAN bus to display an alarm reason, and sends the alarm signal to the alarm unit 14-1 and sends a buzzer, the detected alarm signal corresponds to the water tank liquid level low alarm lamp 14-3 and the water tank valve closing alarm lamp 14-4 is simultaneously lightened, the controller 12 communicates with the chassis BBM through the CAN bus to automatically reduce the engine speed to the idle speed, and presses a key to start the water pump 11-5 to prevent the power execution component from being damaged; if the rotating speed of the engine is in an idling state and no fault alarm signal exists, a key of the control unit 11 is pressed to start the key 11-5, the controller 12 sends an opening command to the execution unit 15, the water pump air valve 15-2, the reel advancing valve 15-3, the reel speed valve 15-5 and the reel unloading valve 15-6, the water pump 9 operates according to a pre-storage mode, meanwhile, the dredging hose 6 advances, the detection unit 10, the water pump rotating speed sensor 10-1 and the encoder 10-6 are in communication connection with the controller 12, the controller 12 sends data to the display 13 through the CAN bus, and the water pump rotating speed and the advancing meter number of the dredging hose 6 are displayed.
Dredge mode operating mode 1 (conventional) prestore mode: when a key is pressed to start the key 11-5, the rotating speed and the flow of the water pump automatically reach set values W1 (optimal values) to operate, and the advancing speed of the dredging hose 6 reaches set values W2. The dredging process is implemented with the following two function settings: (1) In the advancing process of the dredging hose 6, an encoder 10-6 of a detection unit 10 sends a hose advancing meter number signal to a controller 12, after the controller 12 detects a water pump air valve 15-2 opening signal, the controller 12 can calculate the advancing speed of the dredging hose according to the advancing meter number and time, when the controller 12 detects that the advancing speed of the hose is smaller than a set value W3, the controller 12 sends an instruction to increase the rotating speed and the flow rate of the water pump to a set value W4 (maximum value), the advancing speed of the dredging hose 6 is reduced to a set value W5, the controller 12 sends an instruction to an advancing valve 15-3, when a hose reel advances to a set meter number S1, the reel advancing valve 15-3 is powered off, and the reel backing valve 15-4 is powered on; when the hose retreats to the set number of meters S1, the reel retreating valve 15-4 loses power, the reel advancing valve 15-3 is powered on, the system circularly carries out the operation until the controller 12 detects that the advancing speed of the hose is greater than the set value W3, the controller 12 sends an instruction to restore the rotating speed and the flow rate of the water pump to the set value W1 (optimal value) for operation, the advancing speed of the dredging hose 6 is restored to the set value W2, and the dredging hose 6 advances. (2) The number S2 of the advancing meters of the dredging hose 6 can be set through the display 12, when the set value S2 is reached, the controller 12 sends a command to the buzzer 14-1 to give an alarm, at the moment, a sound-prohibiting button can be selected to be pressed to continue dredging operation, or a one-key stop button 11-6 is pressed, the controller 12 sends a stop command to the execution unit 15, the water pump air valve 15-2, the reel advancing valve 15-3, the reel speed valve 15-5, the reel unloading valve 15-6, the water pump 9 and the dredging hose 6 are automatically stopped, the one-key stop button 11-6 is pressed again, the controller 12 sends an opening command to the reel backing valve 15-4, the reel speed valve 15-5 and the reel unloading valve 15-6, the dredging hose 6 is automatically pulled back, and when the controller 12 receives a signal of the encoder 10-6 and detects that the initial value is before the water pump air valve is opened by the water pump air valve 15-2, the controller 12 sends a closing signal to the reel backing valve 15-4, the reel speed valve 15-5 and the reel unloading valve 15-6, and the dredging hose 6 is automatically stopped.
Dredge mode operating mode 2 (soft blockage) prestore mode: when a key is pressed to start the key 11-5, the rotating speed and the flow of the water pump automatically reach set values W5 (optimal values) to operate, and the advancing speed of the dredging hose 6 reaches set values W6. And (3) executing two function settings of the serial numbers (1) and (2) in the dredging process.
Dredging mode operating mode 3 (hard plugging) pre-stored mode: when a key is pressed to start the key 11-5, the rotating speed and the flow of the water pump automatically reach set values W7 (optimal values) to operate, and the advancing speed of the dredging hose 6 reaches set values W8. And (3) executing two function settings of the sequence numbers (1) and (2) in the dredging process.
During the dredging mode operation, in order to protect the components from being damaged, the system automatically executes the following two protection modes:
1) In the process of pulling back the dredging hose 6, the hose pulling-back force sensor 10-3 automatically detects whether the pulling force is greater than a set value L1, if so, the controller 12 sends an alarm signal and a stop signal to the buzzer 14-1 and the reel backing valve 15-4 respectively, at the moment, the buzzer 14-1 buzzes, the dredging hose pulling-back force alarm lamp 14-5 lights, the controller 12 sends a closing command to the reel backing valve 15-4, the reel speed valve 15-5 and the reel unloading valve 15-6, the dredging hose 6 stops, the controller 12 sends an opening command to the reel advancing valve 15-3, the reel speed valve 15-5 and the reel unloading valve 15-6, the dredging hose 6 advances to a set value S3 and stops, the dredging hose is to be shaken (solving the problem of jamming of the dredging nozzle), the next key stop button 11-6 is pressed, the dredging hose 6 continues to be pulled back until the controller 12 detects that the encoder 10-6 is the initial value before the opening signal of the water pump 15-2, and the damage of components caused by the excessive pulling-back force of the dredging hose 6 is protected.
2) In the operation of the device, the water tank liquid level sensor 10-4 can detect the state of the water tank 8, when the water tank 8 is short of water, the water tank liquid level sensor 10-4 can send a signal to the controller 12, the controller 12 can send a signal to reduce the rotating speed of the water pump to a set value W9, and send an alarm signal to the buzzer 14-1 to buzz so as to remind an operator that the water tank is in the water shortage state, the one-key stop button 11-6 is manually pressed, and the water pump 9 and the dredging hose 6 can be automatically stopped. If the operator does not find the alarm in time, the controller 12 sends a stop command to the water pump air valve 15-2, the reel advancing valve 15-3, the reel speed valve 15-5 and the reel unloading valve 15-6 after detecting the time of a signal T7 of 10-4 that the liquid level of the water tank is low, the water pump 9 and the dredging hose 6 can be automatically stopped, and the parts damage caused by the water shortage operation of the water pump 9 is protected.
And selecting a combined operation mode when suction and pipe network blockage dredging are carried out simultaneously, as shown in fig. 4, operating a selection key on a display 13 to select the combined mode, pressing a confirmation key to enter a suction medium and dredging working condition selection, respectively selecting one of options, pressing the confirmation key, and finishing the combined mode selection. In the combined operation mode, the starting sequence is as follows: the water pump 9 is first followed by the fan 1.
The automatic/manual switch 11-4 is operated through the operation unit 11, the switch is turned to an automatic mode, the controller 12 CAN automatically detect an automatic mode signal, when the automatic mode signal is detected, the controller 12 CAN communicate with a chassis BBM through a CAN bus and detect whether the engine rotating speed is in an idle state or not and automatically receive detection signals sent by the detection unit 9, namely the tank level sensor 10-4, the water tank level sensor 10-5, the hydraulic oil low level sensor 10-7 and the water tank valve closing 11-1, the controller 12 CAN identify whether an alarm signal is failed or not, if the engine rotating speed is not in the idle state or one of the signals has an alarm, the controller 12 CAN communicate with a display 13 through the CAN bus to display the alarm reason and send the alarm signal to an alarm unit 14 buzzer 14-1 and send a buzzer, the detected alarm signal corresponds to the tank level alarm lamp 14-2, the water tank level low alarm lamp 14-3 and the water tank valve closing alarm lamp 14-4 and CAN be simultaneously turned on, the controller 12 CAN automatically turn down the engine rotating speed to the idle speed key and turn on the idle speed alarm lamp 11-5 through the CAN bus to prevent a power pump from being out of work; if the engine speed is in an idling state and no fault alarm signal exists, a key of the control unit 11 is pressed to start the key 11-5, the controller 12 sends an opening command to the execution unit 15, the water pump air valve 15-2, the reel advancing valve 15-3, the reel speed valve 15-5 and the reel unloading valve 15-6, the water pump 9 operates according to a selected pre-storage mode, the dredging hose 6 advances, the detection unit 10, the water pump speed sensor 10-1 and the encoder 10-6 are in communication connection with the controller 12, the controller 12 sends data to the display 13 through the CAN bus, and the water pump speed and the advancing number of the dredging hose 6 are displayed. After dredging for a period of time, when the one-key start button 11-5 is pressed again, the fan 1 operates according to the selected pre-storage mode, at the moment, the display 13 displays the tank material level percentage and the fan rotating speed in real time through CAN bus communication, and materials are conveyed into the tank 7 through the sewage suction pipe 5. When the water pump 9 or the fan 1 needs to be stopped, the fan 1 stops when the one-key stop button 11-6 is pressed for a time greater than T8, and the water pump 9 and the dredging hose 6 stop when the one-key stop button is pressed for a time less than T8. When the controller 12 detects a stop signal of the water pump 1 and presses the one-key stop button 11-6 again to be smaller than T8, the dredging hose 6 is automatically pulled back, otherwise, the previous step of control is executed. When the controller 12 receives the signal of the encoder 10-6 and detects the signal as the initial value before the opening signal of the water pump air valve 15-2, a closing signal is sent to the reel retreat valve 15-4, the reel speed valve 15-5 and the reel unloading valve 15-6, and the dredging hose 6 automatically stops.
The invention has the following technical effects:
1. when the dredging operation is carried out, the control system can automatically control the dredging hose to move forwards and backwards, the rotating speed and the flow of the water pump and the parameters of the dredging hose are automatically adjusted by detecting the blocking condition of the pipeline, the operation steps are simplified, and the working efficiency is improved.
2. During pumping operation, the control system can automatically open the pneumatic valve and adjust the rotating speed of the fan according to a pre-stored mode, and automatically adjust the rotating speed of the fan to enable the rotating speed to be in an optimal rotating speed state according to the vacuum pressure and the material level change of the tank, so that power loss is reduced.
3. When the combined dredging vehicle equipment works, the selection of three operation modes is carried out according to different working conditions of a working site, so that the simplicity and convenience of operation are improved.
4. According to the actual working conditions of the site, each operation mode corresponds to different operation parameters, the matching degree of the operation parameters is improved, the working efficiency is increased, and the waste of energy consumption is reduced.
5. Before fan and water pump start, control system can automated inspection equipment trouble information to send out warning and remind, the automatic restriction starting equipment prevents that operating personnel maloperation from causing the damage of power executive component.
6. When the fan and the water pump work, the detection and alarm unit can check the safety value of the equipment in real time, and once the safety value cannot be set, an alarm can be sent out, the system can automatically stop, and the equipment is prevented from being damaged and causing loss.
While the preferred embodiments of the present invention have been illustrated and described, it will be appreciated that the invention may be embodied otherwise than as specifically described and that equivalent alterations and modifications, which may be effected thereto by those skilled in the art without departing from the spirit of the invention, are deemed to be within the scope and spirit of the invention.
Claims (9)
1. A method for selecting and controlling the operation mode of combined dredging equipment is characterized by comprising the following steps:
acquiring operation modes, wherein the operation modes comprise a suction mode, a dredging mode and a combination mode;
selecting the operation mode, and entering next-level working condition selection after the operation mode is selected;
after one working condition is selected, a command is sent to each control unit, and the equipment works according to a pre-storage mode; the method for selecting the operation mode comprises the following steps:
when a suction mode is selected, entering suction medium selection, wherein the suction medium comprises a solid medium and a liquid medium, and selecting and confirming one medium;
the controller responds to the automatic/manual switch and turns on the automatic mode, will detect the automatic mode signal automatically;
when the automatic mode signal is detected, the controller is communicated with a chassis BBM to detect whether the rotating speed of the engine is in an idling state or not and automatically receives detection signals sent by a tank body material level sensor and a hydraulic oil low liquid level sensor of the detection unit;
the controller can automatically identify whether the alarm signal is in fault or not, if the rotating speed of the engine is in a non-idle state or the received detection signal gives an alarm, the controller is communicated with the display to display the reason of the alarm and sends the alarm signal to the alarm unit;
the controller is communicated with the chassis BBM to automatically reduce the rotating speed of the engine to idle speed, the fan is controlled not to work, and the suction valve and the anti-overflow valve are automatically closed after T5 time delay;
if the rotating speed of the engine is in an idling state and no fault alarm signal exists, the controller controls the suction air valve and the anti-overflow air valve to be automatically opened, and the air valve of the fan is automatically opened after the time delay is set;
the controller receives a detection signal sent by the fan rotating speed sensor, the display displays the material level percentage of the tank body and the rotating speed of the fan in real time at the moment, and the material is conveyed into the tank body through the sewage suction pipe.
2. The method for selecting and controlling the operation mode of the combined dredging device according to claim 1, comprising:
when a solid medium pre-storage mode is selected, controlling the rotating speed of the fan to automatically reach a set value R1 for operation;
setting an optimal setting range P1 of the vacuum pressure of the tank body, and if the time that the vacuum pressure is less than the set value P1 is longer than T1 and the material in the tank body is not increased within the set time T2 through the material level sensor, reducing the rotating speed of the fan to the lowest rotating speed R2 of the fan;
when the vacuum pressure reaches a set value P1 or the material level sensor detects that the material in the tank body is increased, the rotating speed of the fan is automatically increased to a set value R1; if the vacuum pressure is greater than or equal to the set value P1 and the material level sensor detects that the material in the tank is not increased within the set time T3, automatically increasing the rotating speed of the fan at the moment until the material level sensor detects that the material in the tank is newly added, stopping and maintaining the increase of the rotating speed;
if the vacuum pressure in the tank body is larger than a set value P2, the alarm unit gives an alarm, and the pressure relief air valve is automatically opened for T4 time and then is automatically closed.
3. The method for selecting and controlling the operation mode of the combined dredging equipment according to claim 1, wherein the method comprises the following steps:
when a liquid medium pre-storage mode is selected, controlling the rotating speed of the fan to automatically reach a set value R4 for operation;
setting an optimal setting range P3 of the vacuum pressure of the tank body, and automatically reducing the rotating speed of the fan to the lowest rotating speed R2 of the running fan at the moment if the time that the vacuum pressure is less than the set value P3 is longer than T1 and the material in the tank is not increased within the set time T2 through the material level sensor;
when the vacuum pressure reaches a set value P3 or the material level sensor detects that the material in the tank body is increased, the rotating speed of the fan is automatically increased to a set value R4;
if the vacuum pressure is smaller than the set value P3 and the material in the tank is detected to increase within the set time T2 by the material level sensor, increasing the rotating speed of the fan until the vacuum pressure reaches the set value P3;
if the vacuum pressure in the tank body is larger than a set value P2, the alarm unit gives an alarm, and the pressure relief air valve is automatically opened for T4 time and then is automatically closed.
4. The method for selecting and controlling the operation mode of the combined dredging device according to claim 1, wherein the method for selecting the operation mode comprises the following steps:
when a dredging mode is selected, working condition selection is carried out, wherein the working condition selection comprises a conventional working condition, a soft blockage working condition and a hard blockage working condition, and one working condition is selected and confirmed;
the controller responds to the automatic/manual switch and turns on the automatic mode, will detect the automatic mode signal automatically;
when the automatic mode signal is detected, the controller is communicated with the chassis BBM to detect whether the rotating speed of the engine is in an idling state or not and automatically receives detection signals sent by a water tank liquid level sensor, a hydraulic oil low liquid level sensor and a water tank valve;
the controller can identify whether the alarm signal is in fault, if the rotating speed of the engine is in a non-idle state or the received detection signal gives an alarm, the controller can communicate with the display to display the reason of the alarm and send the alarm signal to the alarm unit; the controller can communicate with a chassis BBM to automatically reduce the rotating speed of the engine to idle speed and control the water pump not to work;
if the rotating speed of the engine is in an idling state and no fault alarm signal exists, the controller controls the opening of a water pump air valve, a reel forward valve, a reel speed valve and a reel unloading valve;
the water pump runs according to a pre-storage mode, the dredging hose advances at the same time, the controller receives data sent by the water pump rotating speed sensor and the encoder, and the controller sends the data to the display to display the rotating speed of the water pump and the advancing meter number of the dredging hose.
5. The method for selecting and controlling the operation mode of the combined dredging device according to claim 4, comprising the following steps:
when a conventional working condition pre-storage mode is selected, the rotating speed and the flow of the water pump are controlled to automatically reach a set value W1 for operation, and the advancing speed of the dredging hose reaches a set value W2;
in the advancing process of the dredging hose, the controller receives a signal of the number of meters advanced by the encoder for the hose, and after the controller detects a water pump air valve opening signal, the controller can calculate the advancing speed of the dredging hose according to the number of meters advanced and time; when the controller detects that the advancing speed of the hose is smaller than a set value W3, the controller sends an instruction to increase the rotating speed and the flow of the water pump to a set value W4, and the advancing speed of the dredging hose is reduced to a set value W5;
the controller sends a command to the reel advancing valve, when the hose advances to the set meter number S1, the reel advancing valve is powered off, and the reel retreating valve is powered on; when the hose retreats to the set number of meters S1, the reel retreating valve loses power, the reel advancing valve is powered on, and the controller detects that the advancing speed of the hose is larger than a set value W3;
the controller sends an instruction to restore the rotating speed and the flow of the water pump to a set value W1 for operation, restore the advancing speed of the dredging hose to a set value W2, and advance the dredging hose;
the number of advancing meters of the dredging hose is set to be S2, and when the number of advancing meters of the dredging hose reaches a set value S2, the controller controls the alarm unit to give an alarm; the controller sends a stop command to the water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, and the water pump and the dredging hose automatically stop;
the controller sends an opening command to the reel backing valve, the reel speed valve and the reel unloading valve, the dredging hose is automatically pulled back, when the controller receives an encoder signal and detects the initial value before the water pump air valve opening signal, the controller sends a closing signal to the reel backing valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
6. The method for selecting and controlling the operation mode of the combined dredging device according to claim 5, comprising:
when a soft blocking working condition pre-storage mode is selected, the rotating speed and the flow of the water pump are controlled to automatically reach a set value W5 to operate, and the advancing speed of the dredging hose reaches a set value W6;
in the advancing process of the dredging hose, the controller receives a signal of the number of meters advanced by the encoder for the hose, and after the controller detects a water pump air valve opening signal, the controller can calculate the advancing speed of the dredging hose according to the number of meters advanced and time; when the controller detects that the advancing speed of the hose is smaller than a set value W3, the controller sends an instruction to increase the rotating speed and the flow of the water pump to a set value W4, and the advancing speed of the dredging hose is reduced to a set value W5; the controller sends a command to the reel advancing valve, when the hose advances to the set meter number S1, the reel advancing valve is powered off, and the reel retreating valve is powered on; when the hose retreats to the set number of meters S1, the reel retreating valve loses power, the reel advancing valve is powered on, and the controller detects that the advancing speed of the hose is larger than a set value W3;
the controller sends an instruction to restore the rotating speed and the flow of the water pump to a set value W1 for operation, the advancing speed of the dredging hose is restored to a set value W2, and the dredging soft controller responds to the situation that an automatic/manual switch is switched to an automatic mode, and automatically detects the advancing of an automatic mode signal;
the number of advancing meters S2 of the dredging hose is set, and when the number of advancing meters reaches a set value S2, the controller controls the alarm unit to give an alarm; the controller sends a stop command to the water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, and the water pump and the dredging hose automatically stop;
the controller sends an opening command to the reel backing valve, the reel speed valve and the reel unloading valve, the dredging hose is automatically pulled back, when the controller receives an encoder signal and detects the initial value before the water pump air valve opening signal, the controller sends a closing signal to the reel backing valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
7. The method for selecting and controlling the operation mode of the combined dredging device according to claim 5, comprising:
when a hard blocking working condition pre-storage mode is selected, the rotating speed and the flow of the water pump are controlled to automatically reach a set value W7 to operate, and the advancing speed of the dredging hose reaches a set value W8;
in the advancing process of the dredging hose, the controller receives a signal of the number of meters advanced by the encoder for the hose, and after the controller detects a water pump air valve opening signal, the controller can calculate the advancing speed of the dredging hose according to the number of meters advanced and time; when the controller detects that the advancing speed of the hose is smaller than a set value W3, the controller sends an instruction to increase the rotating speed and the flow of the water pump to a set value W4, and the advancing speed of the dredging hose is reduced to a set value W5;
the controller sends a command to the reel advancing valve, when the hose advances to the set meter number S1, the reel advancing valve is powered off, and the reel retreating valve is powered on; when the hose retreats to the set meter number S1, the reel retreating valve loses power, the reel advancing valve is powered on, and the controller detects that the advancing speed of the hose is greater than a set value W3;
the controller sends an instruction to restore the rotating speed and the flow of the water pump to a set value W1 for operation, restore the advancing speed of the dredging hose to a set value W2, and advance the dredging hose;
the number of advancing meters of the dredging hose is set to be S2, and when the number of advancing meters of the dredging hose reaches a set value S2, the controller controls the alarm unit to give an alarm; the controller sends a stop command to the water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, and the water pump and the dredging hose automatically stop;
the controller sends an opening command to the reel backing valve, the reel speed valve and the reel unloading valve, the dredging hose is automatically pulled back, when the controller receives an encoder signal and detects the initial value before the water pump air valve opening signal, the controller sends a closing signal to the reel backing valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
8. The method for selecting and controlling the operation mode of the combined dredging device according to claim 1, wherein the method for selecting the operation mode comprises the following steps:
when the combined mode is selected, working condition selection is carried out, wherein the working condition selection comprises a medium suction working condition and a dredging working condition, and one working condition is selected and confirmed;
the controller responds to the automatic/manual switch and turns on the automatic mode, will detect the automatic mode signal automatically;
when the automatic mode signal is detected, the controller is communicated with the chassis BBM and detects whether the rotating speed of the engine is in an idling state or not and automatically receives detection signals sent by the tank body material level sensor, the water tank liquid level sensor, the hydraulic oil low liquid level sensor and the water tank valve;
the controller can identify whether the alarm signal is in fault, if the rotating speed of the engine is in a non-idle state or the received detection signal gives an alarm, the controller can communicate with the display to display the reason of the alarm and send the alarm signal to the alarm unit; the controller can communicate with a chassis BBM to automatically reduce the rotating speed of the engine to an idle speed and control the water pump and the fan to stop working; if the rotating speed of the engine is in an idling state and no fault alarm signal exists, the controller sends a starting command to the execution unit water pump air valve, the reel advancing valve, the reel speed valve and the reel unloading valve, the water pump runs according to the selected pre-storage mode, and meanwhile the dredging hose advances;
the controller receives data of the water pump rotating speed sensor and the encoder, and sends the data to the display through the CAN bus so as to display the rotating speed of the water pump and the advancing meters of the dredging hose;
after the tank body is dredged for a period of time, controlling the fan to operate according to a selected pre-storage mode, displaying the material level percentage of the tank body and the rotating speed of the fan in real time by the displayer, and conveying the material into the tank body through the sewage suction pipe;
when the controller detects a water pump stop signal, the dredging hose is controlled to automatically pull back;
when the controller receives the signal of the encoder and detects the signal as the initial value before the opening signal of the water pump air valve, the controller sends a closing signal to the reel retreating valve, the reel speed valve and the reel unloading valve, and the dredging hose automatically stops.
9. A combined dredging equipment operation mode selection and control system is characterized by comprising a detection unit, an operation unit, a control unit, a display unit, an alarm unit and an execution unit;
the detection unit comprises a water pump rotating speed sensor, a fan rotating speed sensor, a hose pull-back force sensor, a tank body material level sensor, a water tank liquid level sensor, an encoder and a hydraulic oil low liquid level sensor;
the operation unit comprises a water tank valve switch, a fan switch, a water pump switch, an automatic/manual switch, a one-key starting button and a one-key stopping button;
the alarm unit comprises a buzzer, a tank body material level high alarm lamp, a water tank liquid level low alarm lamp, a water tank valve closing alarm lamp and a dredging pipe pull-back alarm lamp;
the execution unit comprises a fan air valve, a water pump air valve, a reel advancing valve, a reel retreating valve, a reel speed valve and a reel unloading valve;
the method for selecting the operation mode comprises the following steps:
when a suction mode is selected, entering suction medium selection, wherein the suction medium comprises a solid medium and a liquid medium, and selecting and confirming one medium;
the controller responds to the automatic/manual switch and turns on the automatic mode, will detect the automatic mode signal automatically;
when the automatic mode signal is detected, the controller is communicated with a chassis BBM to detect whether the rotating speed of the engine is in an idling state or not and automatically receives detection signals sent by a tank body material level sensor and a hydraulic oil low liquid level sensor of the detection unit;
the controller can automatically identify whether the alarm signal is in fault or not, if the rotating speed of the engine is in a non-idle state or the received detection signal gives an alarm, the controller is communicated with the display to display the reason of the alarm and sends the alarm signal to the alarm unit;
the controller is communicated with the chassis BBM to automatically reduce the rotating speed of the engine to idle speed, the fan is controlled not to work, and the suction valve and the anti-overflow valve are automatically closed after T5 time delay;
if the rotating speed of the engine is in an idling state and no fault alarm signal exists, the controller controls the suction air valve and the anti-overflow air valve to be automatically opened, and the air valve of the fan is automatically opened after the time delay is set;
the controller receives a detection signal sent by the fan rotating speed sensor, the display displays the material level percentage of the tank body and the rotating speed of the fan in real time at the moment, and the material is conveyed into the tank body through the sewage suction pipe.
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| CN106630215A (en) * | 2016-08-17 | 2017-05-10 | 广东聚源环保科技股份有限公司 | Efficient oil-water separation device for restaurant wastewater |
| CN207988126U (en) * | 2017-08-31 | 2018-10-19 | 南京南汽畅通公路机械有限公司 | A kind of hydraulic pressure water drainage dredging vehicle |
| CN107447850A (en) * | 2017-09-04 | 2017-12-08 | 南京金长江交通设施有限公司 | A kind of combined dredging car for water sewage circulation unit |
| CN211217870U (en) * | 2019-11-04 | 2020-08-11 | 陈坚 | Pipeline cleaning water channel filling system |
| CN211724800U (en) * | 2019-12-26 | 2020-10-23 | 武汉泰昌源环保科技有限公司 | Sludge suction filtration system applied to horizontal sedimentation tank |
| CN112695882A (en) * | 2020-12-16 | 2021-04-23 | 江苏徐工工程机械研究院有限公司 | Sewage circulating device and dredging vehicle |
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2021
- 2021-08-17 CN CN202110941601.2A patent/CN113759757B/en active Active
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