CN209112398U - A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton - Google Patents
A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton Download PDFInfo
- Publication number
- CN209112398U CN209112398U CN201821988178.1U CN201821988178U CN209112398U CN 209112398 U CN209112398 U CN 209112398U CN 201821988178 U CN201821988178 U CN 201821988178U CN 209112398 U CN209112398 U CN 209112398U
- Authority
- CN
- China
- Prior art keywords
- plc control
- host computer
- conveyer
- control cabinet
- hatchcover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Testing And Monitoring For Control Systems (AREA)
Abstract
The utility model relates to a kind of PLC control systems applied to the above pure electric vehicle bulk freighter of kiloton, host computer, special equipment alarm control unit including mutual communication connection, steering engine monitor and alarm system, auxiliary monitoring alarm system, logical operation, sequential control are carried out to the running equipment on ship by PLC, electrical secondary equipment and control wiring can be reduced in large quantities, and it is interacted by host computer and monitoring personnel, not only control system can be made succinctly effective, but also monitoring personnel can be made to be more convenient, quickly be monitored to the running equipment on ship.
Description
Technical field
The utility model relates to PLC control systems, and in particular to a kind of applied to the above pure electric vehicle bulk freighter of kiloton
PLC control system.
Background technique
The running equipment of complete set and complexity is needed to have on the above pure electric vehicle bulk freighter of kiloton, including steering engine, is pushed away
Into device, power supply unit, safety guarantee equipment etc..The handling of Cargo On Deck also need hatchcover, sluice gate, conveyer, unloading arm,
The close fit of the various materials handling facilities such as power-equipment can just be completed.Cargo needs to fill from the hatchcover of unlatching when loading
Enter, when unloading cargo from the sluice gate of unlatching come out and under fall on conveyer conveyer belt on, goods handling is arrived by conveyer belt
At unloading arm, unloading arm again by goods handling ashore, wherein the operation of the unlatching of hatchcover and sluice gate, conveyer and unloading arm is also
Power-equipment is needed to provide operation power for it.
Currently running monitoring of tools technology is generally monitored running equipment using electrical secondary equipment, electrical two
Secondary device includes control switch, relay, instrument etc., these electrical secondary equipments are connected to form electric control circuit, is led to
It crosses electric control circuit and logic control is carried out to running equipment.To in large scale on the above pure electric vehicle bulk freighter of kiloton, operation
Complicated a whole set of running equipment carries out effective monitoring, needs a large amount of electrical secondary equipment and control circuit cabling, and control
Logic processed is complicated, brings a great deal of trouble to the designer of control system, is also brought using the monitoring personnel of control system
Inconvenience.
Utility model content
The utility model provides one kind and is applied to overcome at least one defect (deficiency) described in the above-mentioned prior art
The PLC control system of the above pure electric vehicle bulk freighter of kiloton, it is possible to reduce electrical secondary equipment and control wiring pass through PLC
(Programmable Logic Controller, programmable logic controller (PLC)) on ship running equipment carry out logical operation,
Sequential control, and interacted by host computer and monitoring personnel, not only control system can be made succinctly effective, but also can make
Monitoring personnel is more convenient, is quickly monitored to the running equipment on ship.
For realization the purpose of this utility model, it is achieved using following technical scheme:
A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton, including the alarm of host computer, special equipment
Control unit, the special equipment alarm control unit include hatchcover control unit;
The hatchcover control unit includes hatchcover limit switch, hatchcover PLC control cabinet;
The hatchcover limit switch, for detecting hatchcover opening and closing degree and sending hatchcover PLC control for hatchcover opening and closing degree
Case processed;
The hatchcover PLC control cabinet, the control life that control command or monitoring personnel for being provided according to host computer provide
Control hatchcover folding is enabled, the hatchcover opening and closing degree that hatchcover limit switch is sent is received, sends host computer for hatchcover opening and closing degree
And it shows.
Host computer, which refers to, can directly issue manipulation command and show the computer of various operating statuses.
Hatchcover limit switch may be mounted at the edge of hatchcover, and whether detection hatchcover reaches position, closes in place.Hatchcover is opened
Conjunction degree may be displayed in host computer, and monitoring personnel can monitor the opening and closing degree of hatchcover in real time.
Hatchcover PLC control cabinet is to can control the programmable control box of hatchcover folding.Monitoring personnel can be according to host computer
Shown hatchcover opening and closing degree and the actual needs for loading and unloading goods, to host computer input control order, host computer is by monitor
The control command of member's input is transferred to hatchcover PLC control cabinet, the control command control that hatchcover PLC control cabinet can be provided according to host computer
The folding of hatchcover processed.Monitoring personnel can also directly be controlled in hatchcover PLC control cabinet according to the actual needs of handling goods, cabin
Lid PLC control cabinet controls the folding of hatchcover according to the control command of monitoring personnel.
Further, the special equipment alarm control system further includes sluice gate control unit;
The sluice gate control unit includes sluice gate limit switch, sluice gate PLC control cabinet;
The sluice gate limit switch, for detecting sluice gate opening and closing degree and sending sluice gate PLC control for sluice gate opening and closing degree
Case processed;
The sluice gate PLC control cabinet, the control life that control command or monitoring personnel for being provided according to host computer provide
Control sluice gate folding is enabled, the sluice gate opening and closing degree that sluice gate limit switch is sent is received, sends host computer for sluice gate opening and closing degree
And it shows.
Sluice gate limit switch may be mounted at the opening both ends of sluice gate, and whether detection sluice gate reaches position, closes in place.Sluice gate
Opening and closing degree may be displayed in host computer, and monitoring personnel can monitor the opening and closing degree of sluice gate in real time.
Sluice gate PLC control cabinet is to can control the programmable control box of sluice gate folding.Monitoring personnel can be according to host computer
Shown sluice gate opening and closing degree and the actual needs for loading and unloading goods, to host computer input control order, host computer is by monitor
The control command of member's input is transferred to sluice gate PLC control cabinet, the control command control that sluice gate PLC control cabinet can be provided according to host computer
The folding of sluice gate processed.Monitoring personnel can also directly be controlled in sluice gate PLC control cabinet according to the actual needs of handling goods, be struggled against
Door PLC control cabinet controls the folding of sluice gate according to the control command of monitoring personnel.
Further, the special equipment alarm control system further includes conveyer control unit;
The conveyer control unit includes conveyer PLC control cabinet;
The conveyer PLC control cabinet, the control that control command or monitoring personnel for being provided according to host computer provide
The variable-frequency motor working condition of order control conveyer, sends host computer for the variable-frequency motor working condition of conveyer and shows
Out.
Conveyer PLC control cabinet is to can control the working conditions such as the variable-frequency motor unlatching, closing, output power of conveyer
Programmable control box.Monitoring personnel can be according to the variable-frequency motor and/or hatch door folding condition and/or bucket shown by host computer
Door folding condition and the actual needs etc. for loading and unloading goods, to host computer input control order, host computer inputs monitoring personnel
Control command is transferred to conveyer PLC control cabinet, and conveyer PLC control cabinet can be defeated according to the control command control that host computer provides
Send the variable-frequency motor working condition of machine.Monitoring personnel can also be controlled directly in conveyer PLC control cabinet, conveyer PLC
Control cabinet controls the variable-frequency motor working condition of conveyer according to the control command of monitoring personnel.
Further, the conveyer control unit further includes the belt deflection being electrically connected with conveyer PLC control cabinet
Sensor and/or conveyer band discerption sensor and/or cooling water high temperature alarm;
Whether the belt deflection sensor, the conveyer belt for detecting conveyer occur sideslip, convey when detecting
When sideslip occurs for band, emergent stop signal is sent to conveyer PLC control cabinet;
Whether the conveyer band discerption sensor, the conveyer belt for detecting conveyer tear, and convey when detecting
When band is torn, emergent stop signal is sent to conveyer PLC control cabinet;
Whether the cooling water high temperature detector, the cooling water temperature for detecting conveyer exceed setting range, work as inspection
When measuring cooling water temperature beyond setting range, emergent stop signal is sent to conveyer PLC control cabinet;
The conveyer PLC control cabinet be also used to receive belt deflection sensor and/or conveyer band discerption sensor and/
Or the emergent stop signal that cooling water high temperature alarm is sent, and variable-frequency motor is controlled according to emergent stop signal and is stopped working.
Belt deflection sensor may be mounted at the both ends of conveyer belt, and whether detection conveyer belt occurs sideslip.Work as detection
When sideslip occurs to conveyer belt, emergent stop signal is sent to conveyer PLC control cabinet, conveyer PLC control cabinet can control variable-frequency electric
Machine stops working.
Conveyer band discerption sensor can be set in the lower section of conveyer belt, detect whether conveyer belt tears.Work as detection
When tearing to conveyer belt, emergent stop signal is sent to conveyer PLC control cabinet, conveyer PLC control cabinet can control variable-frequency electric
Machine stops working.
Cooling water high temperature detector may be mounted on the speed reducer of conveyer, and whether the temperature for detecting cooling water, which exceeds, sets
Determine range.When detecting cooling water temperature beyond setting range, emergent stop signal is sent to conveyer PLC control cabinet, conveyer
PLC control cabinet can control variable-frequency motor and stop working.
Further, the special equipment alarm control system further includes power stretching unit;
The power stretching unit includes Hydranlic tensioner;
The Hydranlic tensioner, the control command that control command or operator for being provided according to host computer provide
The conveying belt tension degree on conveyer is controlled, host computer is sent by conveying belt tension degree and shows.
The tensioning wheel position of the adjustable connection conveyer belt of Hydranlic tensioner, to control conveying belt tension degree.Liquid
Press tensioning apparatus that conveying belt tension degree is fed back to host computer, conveying belt tension degree can be shown in host computer, so that prison
Control personnel can monitor conveying belt tension degree in real time, and monitoring personnel is allowed to monitor conveying belt tension degree in real time, according to
Conveying belt tension degree judges whether conveyer is abnormal.
Monitoring personnel can according to the conveying belt tension degree shown by host computer, to host computer input control order, on
The control command that monitoring personnel inputs is transferred to Hydranlic tensioner by position machine, and Hydranlic tensioner can be provided according to host computer
Control command controls conveying belt tension degree.Monitoring personnel can also be controlled directly on Hydranlic tensioner, and hydraulic
Tight device controls conveying belt tension degree according to the control command of monitoring personnel.
Further, the power stretching unit further includes velocity sensor;
The velocity sensor sends host computer simultaneously for conveying tape speed for detecting the conveying tape speed of conveyer
It shows.
Velocity sensor may be mounted on belt pulley, detect the revolving speed of belt pulley to obtain conveying tape speed.It tests the speed
To host computer, conveying tape speed can show the conveyer belt velocity feedback that sensor will test out in host computer, so that monitoring
Whether personnel can monitor conveying tape speed in real time, be abnormal according to conveyer belt velocity estimated conveyer.
Further, the special equipment alarm control system further includes hydraulic power unit unit;
The hydraulic power unit control unit includes hydraulic power unit PLC control cabinet;
The hydraulic power unit PLC control cabinet, the control that control command or monitoring personnel for being provided according to host computer provide
The electric machine operation state of system order control hydraulic power unit, sends host computer for the electric machine operation state of hydraulic power unit and shows
Come.
Hydraulic power unit is can to provide the power-equipment of hydraulic power for the running equipments for needing power various on ship, is such as struggled against
Door, Hydranlic tensioner etc. are required to power operation.The electric machine operation state of hydraulic power unit may be displayed in host computer, prison
Control personnel can monitor the electric machine operation state of hydraulic power unit in real time.
Hydraulic power unit PLC control cabinet is to can control the working conditions such as the motor unlatching, closing, output power of hydraulic power unit
Programmable control box.Monitoring personnel can according to shown by host computer hydraulic power unit motor working condition and/or sluice gate open
Conjunction state and/or conveying belt tension degree etc., to host computer input control order, the control that host computer inputs monitoring personnel is ordered
Order is transferred to hydraulic power unit PLC control cabinet, and hydraulic power unit PLC control cabinet can be hydraulic according to the control command control that host computer provides
The electric machine operation state of pumping plant.Monitoring personnel can also be controlled directly in hydraulic power unit PLC control cabinet, hydraulic power unit PLC
Control cabinet controls the electric machine operation state of hydraulic power unit according to the control command of monitoring personnel.
Further, the special equipment alarm system further includes unloading arm control unit;
The unloading arm control unit includes unloading arm position sensor, arm PLC control cabinet of unloading coal;
The unloading arm position sensor, arm PLC control cabinet is electrically connected with unloading coal, for detecting unloading arm change angle simultaneously
Unloading arm PLC control cabinet is sent by unloading arm change angle;
The unloading arm PLC control cabinet, the control that control command or monitoring personnel for being provided according to host computer provide
Order controls arm change angle of unloading coal, and the arm change angle that will unload coal is sent to host computer and shows.
Unloading arm position sensor may be mounted at the hinged place of unload coal arm and hull, detect the change angle of unloading arm.
Unloading arm PLC control cabinet can control the programmable control box of unloading arm swing luffing.Monitoring personnel can basis
Unloading arm change angle shown by host computer and the actual needs for loading and unloading goods, to host computer input control order, host computer
The control command that monitoring personnel inputs is transferred to unloading arm PLC control cabinet, unloading arm PLC control cabinet can be provided according to host computer
Control command control unloading arm change angle.Monitoring personnel can also be controlled directly in unloading arm PLC control cabinet, be unloaded
Goods arm PLC control cabinet controls the change angle of unloading arm according to the control command of monitoring personnel.
Further, the PLC control system further includes steering engine monitor and alarm system;
The steering engine monitor and alarm system includes rotation angle sensor, steering engine PLC control cabinet;
The rotation angle sensor, for detecting the rudder angle of steering engine and sending steering engine PLC control cabinet for rudder angle;
The steering engine PLC control cabinet for controlling the rudder angle of steering engine, and receives the rudder angle of rotation angle sensor transmission, by rudder
Angle is sent to host computer and shows.
Rotation angle sensor may be mounted at the left and right sides of propeller, detect the value of rudder angle.
Steering engine PLC control cabinet is to can control the programmable control box of rudder angle.Monitoring personnel can be shown according to host computer
Rudder angle value and navigate by water direction actual needs, to host computer input control order, the control that host computer inputs monitoring personnel
System order is transferred to steering engine PLC control cabinet, and the control command control rudder angle that steering engine PLC control cabinet can be provided according to host computer changes
Become.Monitoring personnel can also directly be controlled in steering engine PLC control cabinet according to the actual needs in navigation direction, steering engine PLC control
Case processed controls rudder angle according to the control command of monitoring personnel and changes.
Further, the PLC control system further includes auxiliary monitoring alarm system;
The auxiliary monitoring alarm system includes sending fire alarm signal to host computer when fire occurs for detecting
Fire detecting and alarm unit, for detecting heptafluoro-propane release when send heptafluoro-propane release alarm signal to host computer
Heptafluoro-propane release alarm unit, for detecting that fresh water or sanitary sewage liquid level reach critical when send liquid level warning signal to
The fresh water and sanitary sewage liquid level warning unit of host computer, for detecting battery flat ventilation equipment failure when send ventilation failure
Alarm signal to host computer battery flat ventilation fault alarm unit wherein one or more.
Monitoring personnel can be allowed by whether fire occurring on ipc monitor ship by fire detecting and alarm unit
Calamity, the fire alarm signal shown according to host computer can make fire disaster emergency measure in time.
Monitoring personnel can be allowed to pass through seven fluorine on ipc monitor ship by heptafluoro-propane release alarm unit
Whether propane releases, the heptafluoro-propane release alarm signal shown according to host computer can judge in time whether seven fluorine third
Alkane occurs leakage or accidentally discharges.
Monitoring personnel can be made to pass through by fresh water and sanitary sewage liquid level warning unit light on ipc monitor ship
Whether the liquid level of water or sanitary sewage reaches critical value, and the liquid level warning signal shown according to host computer carries out the benefit of fresh water in time
To the discharge with sanitary sewage.
Monitoring personnel can be made to be mounted with battery by ipc monitor by battery flat ventilation fault alarm unit
In cabin ventilation equipment whether failure, the ventilation failure alarm signal shown according to host computer can make in time ventilation failure answer
Anxious measure.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
(1) by PLC to the material handling equipment on ship, steering engine and other additional alarm equipment carry out logical operation,
Sequential control, wherein material handling equipment includes hatchcover, sluice gate, conveyer, hydraulic power unit, unloading arm etc., it is possible to reduce big
The electrical secondary equipment and control circuit cabling of amount, simplified control system;
(2) monitoring personnel can set material handling equipment, steering engine and the other additional alarms on ship by host computer
It is standby to be monitored in real time, so that the monitoring work of monitoring personnel is more convenient simple and direct, it is not easy to occur because monitoring step is cumbersome, prison
It is monitored caused by control logic loophole not in place.
Detailed description of the invention
Fig. 1 is the PLC control system theory of constitution figure of the utility model embodiment.
Illustrate: in Fig. 1 dotted line indicate using redundant bus 1# carry out communication connection, solid line indicate using redundant bus 2# into
Row communication connection.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent;
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size;
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, be also possible to be indirectly connected with by intermediary, it can be with
Say the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
The concrete meaning of the utility model.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment
As shown in Figure 1, a kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton, including host computer
100, special equipment alarm control unit, the special equipment alarm control unit include hatchcover control unit 210;
The hatchcover control unit 210 includes hatchcover limit switch 212, hatchcover PLC control cabinet 211;
The hatchcover limit switch 212, for detecting hatchcover opening and closing degree and sending hatchcover PLC for hatchcover opening and closing degree
Control cabinet 211;
The hatchcover PLC control cabinet 211, what control command or monitoring personnel for being provided according to host computer 100 provided
Control command controls hatchcover folding, receives the hatchcover opening and closing degree that hatchcover limit switch 212 is sent, hatchcover opening and closing degree is sent
To host computer 100 and show.
Host computer 100, which refers to, can directly issue manipulation command and show the computer of various operating statuses.
Hatchcover limit switch 212 may be mounted at the edge of hatchcover, and whether detection hatchcover reaches position, closes in place.Hatchcover
Opening and closing degree may be displayed in host computer 100, monitoring personnel can monitor the opening and closing degree of hatchcover in real time.
Hatchcover PLC control cabinet 211 is to can control the programmable control box of hatchcover folding.
In the specific implementation process, hatchcover two sides are equipped with idler wheel, are equipped with track along hatch coaming panel, wire reel can be with
By rope traction hatchcover, so that idler wheel set by hatchcover moves on the track set by hatch coaming panel, to complete cabin
The opening and closing of lid.Hatchcover PLC control cabinet 211 can draw hatchcover especially by control wire reel, and hatchcover is opened in completion
The control of conjunction.
Monitoring personnel hatchcover opening and closing degree according to host computer 100 and the actual needs for loading and unloading goods, to
The control command that monitoring personnel inputs is transferred to hatchcover PLC control cabinet by 100 input control order of host computer, host computer 100
211, hatchcover PLC control cabinet 211 can be according to the folding for the control command control hatchcover that host computer 100 provides.Monitoring personnel can also
Directly to be controlled in hatchcover PLC control cabinet 211 according to the actual needs of handling goods, hatchcover PLC control cabinet 211 is according to monitoring
The folding of the control command control hatchcover of personnel.
Preferably, the hatchcover control unit 210 further includes mechanical lock buckle device, locking monitoring sensor;
The mechanical lock buckle device, for being locked when hatchcover is closed in place to hatchcover;
The locking monitoring sensor will test result for detecting whether mechanical locker locks hatchcover
It is sent to host computer 100 and shows.
Mechanical lock buckle device may be mounted at the two sides of hatchcover.After loading and unloading goods, needs to close hatchcover and pass through machine
Tool locker locks hatchcover, in order to avoid opened other than hatchcover and cause danger.Whether hatchcover can be with by the locking of mechanical lock buckle device
It is shown in host computer 100, monitoring personnel can confirm the lock state of hatchcover after loading and unloading goods.
Preferably, when host computer 100 shows that hatchcover is turned off, but hatchcover is not locked by mechanical lock buckle device, host computer 100
It can sound an alarm, monitoring personnel is prompted to need to lock hatchcover.
In the present embodiment, the special equipment alarm control system 200 further includes sluice gate control unit 220;
The sluice gate control unit 220 includes sluice gate limit switch 222, sluice gate PLC control cabinet 221;
The sluice gate limit switch 222, for detecting sluice gate opening and closing degree and sending sluice gate PLC for sluice gate opening and closing degree
Control cabinet 221;
The sluice gate PLC control cabinet 221, what control command or monitoring personnel for being provided according to host computer 100 provided
Control command controls sluice gate folding, receives the sluice gate opening and closing degree that sluice gate limit switch 222 is sent, sluice gate opening and closing degree is sent
To host computer 100 and show.
Sluice gate limit switch 222 may be mounted at the opening both ends of sluice gate, and whether detection sluice gate reaches position, closes in place.Bucket
The opening and closing degree of door may be displayed in host computer 100, and monitoring personnel can monitor the opening and closing degree of sluice gate in real time.
Sluice gate PLC control cabinet 221 is to can control the programmable control box of sluice gate folding.
In the specific implementation process, by hydraulic on the solenoid valve change hydraulic circuit on control hydraulic circuit, so that
Sluice gate bears pulling force or thrust, to complete the opening and closing of sluice gate.Sluice gate PLC control cabinet 221 can be especially by control
Solenoid valve control sluice gate on hydraulic circuit bears pulling force or thrust, completes the control opened and closed to sluice gate.
Monitoring personnel sluice gate opening and closing degree according to host computer 100 and the actual needs for loading and unloading goods, to
The control command that monitoring personnel inputs is transferred to sluice gate PLC control cabinet by 100 input control order of host computer, host computer 100
221, sluice gate PLC control cabinet 221 can be according to the folding for the control command control sluice gate that host computer 100 provides.Monitoring personnel can also
Directly to be controlled in sluice gate PLC control cabinet 221 according to the actual needs of handling goods, sluice gate PLC control cabinet 221 is according to monitoring
The folding of the control command control sluice gate of personnel.
Preferably, the sluice gate control unit 220 further includes hydrostatic sensor, empty cabin monitoring sensor etc..
The hydrostatic sensor, for detecting the hydraulic of hydraulic circuit, hydraulic by hydraulic circuit is sent to host computer 100
And it shows.The hydraulic of hydraulic circuit may be displayed in host computer 100, and monitoring personnel can monitor hydraulic circuit in real time
It is hydraulic, find the exception of hydraulic appearance in time.
It is described sky cabin monitor sensor, for detecting whether cargo hold is sky cabin, by cargo hold whether be sky cabin testing result
It is sent to host computer 100 and shows.Whether cargo hold is that empty-cabin state may be displayed in host computer 100, and monitoring personnel can
Whether to be that empty-cabin state decides whether to carry out handling goods to cargo hold according to cargo hold.
In the present embodiment, the special equipment alarm control system 200 further includes conveyer control unit 230;
The conveyer control unit 230 includes conveyer PLC control cabinet 231;
The conveyer PLC control cabinet 231, control command or monitoring personnel for being provided according to host computer 100 provide
Control command control conveyer variable-frequency motor working condition, send host computer for the variable-frequency motor working condition of conveyer
It 100 and shows.
Conveyer PLC control cabinet 231 is to can control the work such as the variable-frequency motor unlatching, closing, output power of conveyer
The programmable control box of state.Monitoring personnel can the variable-frequency motor according to host computer 100 and/or hatch door folding condition
And/or the actual needs etc. of sluice gate folding condition and handling goods, to 100 input control order of host computer, host computer 100 will be supervised
The control command of control personnel input is transferred to conveyer PLC control cabinet 231, and conveyer PLC control cabinet 231 can be according to host computer
The variable-frequency motor working condition of the 100 control command control conveyers provided.Monitoring personnel can also be controlled directly in conveyer PLC
Case 231 processed is controlled, and conveyer PLC control cabinet 231 controls the variable-frequency motor of conveyer according to the control command of monitoring personnel
Working condition.
In the present embodiment, the conveyer control unit 230 further includes being electrically connected with conveyer PLC control cabinet 231
Belt deflection sensor 232 and/or conveyer band discerption sensor 233 and/or cooling water high temperature alarm 234;
The belt deflection sensor 232, whether the conveyer belt for detecting conveyer occurs sideslip, defeated when detecting
When sending band that sideslip occurs, emergent stop signal is sent to conveyer PLC control cabinet 231;
The conveyer band discerption sensor 233, whether the conveyer belt for detecting conveyer tears, defeated when detecting
When band being sent to tear, emergent stop signal is sent to conveyer PLC control cabinet 231;
Whether the cooling water high temperature detector, the cooling water temperature for detecting conveyer exceed setting range, work as inspection
When measuring cooling water temperature beyond setting range, emergent stop signal is sent to conveyer PLC control cabinet 231;
The conveyer PLC control cabinet 231 is also used to receive belt deflection sensor 232 and/or conveyer band discerption passes
The emergent stop signal that sensor 233 and/or cooling water high temperature alarm 234 are sent, and variable-frequency motor is controlled according to emergent stop signal and is stopped
Work.
Belt deflection sensor 232 may be mounted at the both ends of conveyer belt, and whether detection conveyer belt occurs sideslip.Work as inspection
When measuring conveyer belt generation sideslip, emergent stop signal is sent to conveyer PLC control cabinet 231, conveyer PLC control cabinet 231 can be controlled
Variable-frequency motor processed stops working.
Conveyer band discerption sensor 233 can be set in the lower section of conveyer belt, detect whether conveyer belt tears.Work as inspection
When measuring conveyer belt and tearing, emergent stop signal is sent to conveyer PLC control cabinet 231, conveyer PLC control cabinet 231 can be controlled
Variable-frequency motor processed stops working.
Cooling water high temperature detector may be mounted on the speed reducer of conveyer, and whether the temperature for detecting cooling water, which exceeds, sets
Determine range.When detecting cooling water temperature beyond setting range, emergent stop signal is sent to conveyer PLC control cabinet 231, conveying
Machine PLC control cabinet 231 can control variable-frequency motor and stop working.
Preferably, the sluice gate PLC control cabinet 221 is also used to obtain variable-frequency motor from conveyer PLC control cabinet 231
Working condition, when conveyer PLC control cabinet 231 control variable-frequency motor stop working when, control sluice gate close.
When conveyer PLC control cabinet 231, which controls variable-frequency motor, to stop working, conveyer belt can stop the conveying to cargo,
Therefore it needs to close sluice gate, so that cargo, which will not continue to down fall on, generates excessive accumulation on conveyer belt.
In the present embodiment, the special equipment alarm control system 200 further includes power stretching unit 240;
The power stretching unit 240 includes Hydranlic tensioner 241;
The Hydranlic tensioner 241, the control that control command or operator for being provided according to host computer 100 provide
Conveying belt tension degree on system order control conveyer, sends host computer 100 for conveying belt tension degree and shows.
Hydranlic tensioner 241 can connect the tensioning wheel position of conveyer belt especially by the Traffic control system of hydraulic cylinder,
To control conveying belt tension degree.Conveying belt tension degree is fed back to host computer 100, conveyer belt by Hydranlic tensioner 241
Tensioning degree can be shown in host computer 100, and monitoring personnel is allowed to monitor conveying belt tension degree in real time, so that monitor
Member can monitor conveying belt tension degree in real time, judge whether conveyer is abnormal according to conveying belt tension degree.
Monitoring personnel conveying belt tension degree according to host computer 100 is ordered to 100 input control of host computer
It enables, the control command that monitoring personnel inputs is transferred to Hydranlic tensioner 241 by host computer 100, and Hydranlic tensioner 241 can root
Conveying belt tension degree is controlled according to the control command that host computer 100 provides.Monitoring personnel can also be directly in Hydranlic tensioner
It is controlled on 241, Hydranlic tensioner 241 controls conveying belt tension degree according to the control command of monitoring personnel.
In the present embodiment, the power stretching unit 240 further includes velocity sensor 242;
The velocity sensor 242 sends host computer for conveying tape speed for detecting the conveying tape speed of conveyer
It 100 and shows.
Velocity sensor 242 may be mounted on belt pulley, detect the revolving speed of belt pulley to obtain conveying tape speed.It surveys
To host computer 100, conveying tape speed can show the conveyer belt velocity feedback that fast sensor 242 will test out in host computer 100
Show, monitoring personnel is allowed to monitor conveying tape speed in real time, whether is abnormal according to conveyer belt velocity estimated conveyer.
Preferably, velocity sensor 242 is also used to beat according to whether conveyer belt velocity estimated detected occurs conveyer belt
It is sliding, when judgement is that transport belt slippery occurs, then transport belt slippery alarm signal is sent to host computer 100.
Monitoring personnel can monitor whether conveyer belt skids by host computer 100, be shown according to host computer 100 defeated
Band skidding alarm signal is sent, monitoring personnel can in time overhaul conveyer.
Velocity sensor 242 can according to the detailed process whether conveyer belt velocity estimated detected occurs transport belt slippery
To be: comparing the variable-frequency motor velocity of rotation of conveying tape speed and conveyer, when conveying tape speed is less than variable-frequency motor rotation speed
Degree is then that transport belt slippery occurs, and is otherwise that there is no transport belt slipperies.
In the present embodiment, the special equipment alarm control system 200 further includes hydraulic power unit unit;
The hydraulic power unit control unit 250 includes hydraulic power unit PLC control cabinet 251;
The hydraulic power unit PLC control cabinet 251, control command or monitoring personnel for being provided according to host computer 100 mention
The electric machine operation state of the control command control hydraulic power unit of confession, sends host computer for the electric machine operation state of hydraulic power unit
It 100 and shows.
Hydraulic power unit is can to provide the power-equipment of hydraulic power for the running equipments for needing power various on ship, is such as struggled against
Door, Hydranlic tensioner 241 etc. are required to power operation.The electric machine operation state of hydraulic power unit may be displayed on host computer
In 100, monitoring personnel can monitor the electric machine operation state of hydraulic power unit in real time.
Hydraulic power unit PLC control cabinet 251 is to can control the work such as the motor unlatching, closing, output power of hydraulic power unit
The programmable control box of state.Monitoring personnel hydraulic power unit motor working condition according to host computer 100 and/or
Sluice gate folding condition and/or conveying belt tension degree etc., to 100 input control order of host computer, host computer 100 is by monitoring personnel
The control command of input is transferred to hydraulic power unit PLC control cabinet 251, and hydraulic power unit PLC control cabinet 251 can be according to host computer 100
The electric machine operation state of the control command control hydraulic power unit of offer.Monitoring personnel can also be controlled directly in hydraulic power unit PLC
Case 251 is controlled, and hydraulic power unit PLC control cabinet 251 controls the motor work of hydraulic power unit according to the control command of monitoring personnel
Make state.
Preferably, the hydraulic power unit unit further includes sensing for detecting the oil temperature of hydraulic fluid temperature in hydraulic power unit
Device, for detecting the oil pressure sensor of hydraulic size in hydraulic power unit, the filter for detecting filter oil pressure difference in hydraulic power unit
Device differential pressure pickup, Oil Tank liquid level sensor for detecting liquid level in Oil Tank in hydraulic power unit etc., oil temperature sensor, oil
Pressure sensor, filter differential pressure pickup, Oil Tank liquid level sensor can send respective testing result to hydraulic power unit PLC control
Case 251, hydraulic power unit PLC control cabinet 251 can also send the testing result to host computer 100 and show.
By oil temperature sensor, oil pressure sensor, filter differential pressure pickup, Oil Tank liquid level sensor etc., can to supervise
Control personnel are more fully hereinafter monitored hydraulic power unit.
In the present embodiment, the special equipment alarm system further includes unloading arm control unit 260;
The unloading arm control unit 260 includes unloading arm position sensor 262, arm PLC control cabinet of unloading coal;
The unloading arm position sensor 262, arm PLC control cabinet is electrically connected with unloading coal, for detecting unloading arm variable phase angle
It spends and sends unloading arm PLC control cabinet 261 for unloading arm change angle;
The unloading arm PLC control cabinet 261, control command or monitoring personnel for being provided according to host computer 100 provide
Control command control unload coal arm change angle, the arm change angle that will unload coal is sent to host computer 100 and shows.
Unloading arm position sensor 262 may be mounted at the hinged place of unload coal arm and hull, detect the variable phase angle of unloading arm
Degree.
Unloading arm PLC control cabinet 261 can control the programmable control box of unloading arm swing luffing.
In specific implementation process, the luffing of unloading arm is controlled by electric wire rope winch.Unloading arm PLC control cabinet 261
It can be especially by control electric wire rope winch control unloading arm swing luffing.
Monitoring personnel unloading arm change angle according to host computer 100 and the actual needs for loading and unloading goods,
To 100 input control order of host computer, the control command that monitoring personnel inputs is transferred to unloading arm PLC and controlled by host computer 100
Case 261, unloading arm PLC control cabinet 261 can be according to the change angles for the control command control unloading arm that host computer 100 provides.Prison
Control personnel can also directly control in unloading arm PLC control cabinet 261, and unloading arm PLC control cabinet 261 is according to monitoring personnel
The change angle of control command control unloading arm.
Preferably, the conveyer PLC control cabinet 231 is also used to obtain unloading arm luffing from arm position sensor of unloading coal
Angle, the variable-frequency motor that conveyer is controlled when unloading arm change angle is in non-normal working angle stop working.
When unloading arm change angle is in non-normal working angle, in order to avoid cargo is transported to unloading by conveyer belt
Unloading arm has little time the goods handling on conveyer belt when at arm, and leads to the accumulation of cargo on conveyer belt, needs to stop to convey
Band.
In the present embodiment, the PLC control system further includes steering engine monitor and alarm system 300;
The steering engine monitor and alarm system 300 includes rotation angle sensor 311, steering engine PLC control cabinet 312;
The rotation angle sensor 311, for detecting the rudder angle of steering engine and sending steering engine PLC control cabinet 312 for rudder angle;
The steering engine PLC control cabinet 312 for controlling the rudder angle of steering engine, and receives the rudder of the transmission of rotation angle sensor 311
Angle sends host computer 100 for rudder angle and shows.
Rotation angle sensor 311 may be mounted at the left and right sides of propeller, detect the value of rudder angle.
Steering engine PLC control cabinet 312 is to can control the programmable control box of rudder angle.Monitoring personnel can be according to host computer
The rudder angle value of 100 displays and the actual needs for navigating by water direction, to 100 input control order of host computer, host computer 100 will be monitored
The control command of personnel's input is transferred to steering engine PLC control cabinet 312, and steering engine PLC control cabinet 312 can be provided according to host computer 100
Control command control rudder angle change.Monitoring personnel can also directly be controlled in steering engine PLC according to the actual needs in navigation direction
Case 312 is controlled, and steering engine PLC control cabinet 312 controls rudder angle according to the control command of monitoring personnel and changes.
In the specific implementation process of the present embodiment, host computer 100 can be multiple and set up separately in automatically controlled of stern, fore body
Automatically controlled, drive platform etc., or it is single and be arranged in automatically controlled of stern or automatically controlled of fore body or drive platform etc..
Preferably, hatchcover PLC control cabinet 211, sluice gate PLC control cabinet 221, conveyer PLC control cabinet 231, hydraulic power unit
PLC control cabinet 251, the difference of unloading arm PLC control cabinet 261 at least two.One of them respectively correspond be located at hatchcover, sluice gate,
Conveyer, hydraulic power unit, unloading arm device context by, respectively to hatchcover, sluice gate, conveyer, hydraulic power unit, unloading arm carry out
Local control;There are one 100 side of host computer is respectively provided at, respectively to hatchcover, sluice gate, conveyer, hydraulic power unit, unloading arm
Remotely controlled.
In the present embodiment, the PLC control system further includes auxiliary monitoring alarm system 400;
The auxiliary monitoring alarm system 400 includes sending fire alarm signal to upper when fire occurs for detecting
The fire detecting and alarm unit 410 of machine 100, for detect heptafluoro-propane release when send heptafluoro-propane release alarm signal to
The heptafluoro-propane release alarm unit 420 of host computer 100, for detecting that fresh water or sanitary sewage liquid level reach critical when transmission
Liquid level warning signal is set to the fresh water and sanitary sewage liquid level warning unit 430 of host computer 100, for detecting that battery flat is divulged information
For one of them of the battery flat ventilation fault alarm unit 440 of transmission ventilation failure alarm signal when failure to host computer 100
Or it is multiple.
By fire detecting and alarm unit 410 can allow monitoring personnel by host computer 100 monitor ship on whether
Fire occurs, fire disaster emergency measure can be made according to the fire alarm signal that host computer 100 is shown in time.
Monitoring personnel can be allowed to monitor on ship by host computer 100 by heptafluoro-propane release alarm unit 420
Heptafluoro-propane whether release, according to host computer 100 show heptafluoro-propane release alarm signal can judge in time
Whether heptafluoro-propane occurs leakage or accidentally discharges.
Monitoring personnel can be made to monitor ship by host computer 100 by fresh water and sanitary sewage liquid level warning unit 430
On fresh water or the liquid level of sanitary sewage whether reach critical value, the liquid level warning signal shown according to host computer 100 in time into
The supply of row fresh water and the discharge of sanitary sewage.
Monitoring personnel can be made to be mounted with by the monitoring of host computer 100 by battery flat ventilation fault alarm unit 440
In the cabin of battery ventilation equipment whether failure, according to host computer 100 show ventilation failure alarm signal can make in time
Ventilation failure emergency measure.
Preferably, the communication connection in the PLC control system is to carry out communication connection by dual redundant bus form,
The communication compatibility in PLC control system can be improved.In the specific implementation process, redundant bus 1# can be using Ethernet
Communication, redundant bus 2# can be to be communicated using RS485.
In the present embodiment, the PLC control system further includes power supply system;The power supply system includes DC distribution
Cabinet, Alternating Current Power Supply cabinet, AC power distribution cabinet/AC distribution panel;
Low voltage lithium electric battery electrifier DC600V/DC4 is equipped in the DC power distribution cabinet,
The Alternating Current Power Supply cabinet is used to that direct current DC600V to be converted to obtain exchange AC380V;
The load distribution that the AC power distribution cabinet/AC distribution panel is used for as full ship AC380V and AC220V.
The same or similar label correspond to the same or similar components;
Positional relationship is described in attached drawing only for illustration, should not be understood as the limitation to this patent;
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton, including host computer, which is characterized in that also
Including special equipment alarm control unit, the special equipment alarm control unit includes hatchcover control unit;
The hatchcover control unit includes hatchcover limit switch, hatchcover PLC control cabinet;
The hatchcover limit switch, for detecting hatchcover opening and closing degree and sending hatchcover PLC control cabinet for hatchcover opening and closing degree;
The hatchcover PLC control cabinet, the control command control that control command or monitoring personnel for being provided according to host computer provide
Hatchcover folding processed, receives the hatchcover opening and closing degree that hatchcover limit switch is sent, sends host computer for hatchcover opening and closing degree and show
It shows and.
2. the PLC control system according to claim 1 applied to the above pure electric vehicle bulk freighter of kiloton, feature exist
In the special equipment alarm control system further includes sluice gate control unit;
The sluice gate control unit includes sluice gate limit switch, sluice gate PLC control cabinet;
The sluice gate limit switch, for detecting sluice gate opening and closing degree and sending sluice gate PLC control cabinet for sluice gate opening and closing degree;
The sluice gate PLC control cabinet, the control command control that control command or monitoring personnel for being provided according to host computer provide
Sluice gate folding processed, receives the sluice gate opening and closing degree that sluice gate limit switch is sent, sends host computer for sluice gate opening and closing degree and show
It shows and.
3. the PLC control system according to claim 1 applied to the above pure electric vehicle bulk freighter of kiloton, feature exist
In the special equipment alarm control system further includes conveyer control unit;
The conveyer control unit includes conveyer PLC control cabinet;
The conveyer PLC control cabinet, the control command that control command or monitoring personnel for being provided according to host computer provide
The variable-frequency motor working condition for controlling conveyer, sends host computer for the variable-frequency motor working condition of conveyer and shows
Come.
4. the PLC control system according to claim 3 applied to the above pure electric vehicle bulk freighter of kiloton, feature exist
In the conveyer control unit further includes the belt deflection sensor being electrically connected with conveyer PLC control cabinet and/or conveying
Band tearing sensor and/or cooling water high temperature alarm;
Whether the belt deflection sensor, the conveyer belt for detecting conveyer occur sideslip, when detect conveyer belt send out
When raw sideslip, emergent stop signal is sent to conveyer PLC control cabinet;
Whether the conveyer band discerption sensor, the conveyer belt for detecting conveyer tear, when detect conveyer belt send out
When raw tearing, emergent stop signal is sent to conveyer PLC control cabinet;
Whether the cooling water high temperature detector, the cooling water temperature for detecting conveyer exceed setting range, when detecting
When cooling water temperature exceeds setting range, emergent stop signal is sent to conveyer PLC control cabinet;
The conveyer PLC control cabinet is also used to receive belt deflection sensor and/or conveyer band discerption sensor and/or cold
But the emergent stop signal that water high temperature alarm is sent, and variable-frequency motor is controlled according to emergent stop signal and is stopped working.
5. the PLC control system according to claim 1 applied to the above pure electric vehicle bulk freighter of kiloton, feature exist
In the special equipment alarm control system further includes power stretching unit;
The power stretching unit includes Hydranlic tensioner;
The Hydranlic tensioner, the control command control that control command or operator for being provided according to host computer provide
Conveying belt tension degree on conveyer, sends host computer for conveying belt tension degree and shows.
6. the PLC control system according to claim 5 applied to the above pure electric vehicle bulk freighter of kiloton, feature exist
In the power stretching unit further includes velocity sensor;
The velocity sensor sends host computer for conveying tape speed and shows for detecting the conveying tape speed of conveyer
Out.
7. the PLC control system according to claim 1 applied to the above pure electric vehicle bulk freighter of kiloton, feature exist
In the special equipment alarm control system further includes hydraulic power unit unit;
The hydraulic power unit control unit includes hydraulic power unit PLC control cabinet;
The hydraulic power unit PLC control cabinet, the control life that control command or monitoring personnel for being provided according to host computer provide
The electric machine operation state for enabling control hydraulic power unit, sends host computer for the electric machine operation state of hydraulic power unit and shows.
8. the PLC control system according to claim 1 applied to the above pure electric vehicle bulk freighter of kiloton, feature exist
In the special equipment alarm system further includes unloading arm control unit;
The unloading arm control unit includes unloading arm position sensor, arm PLC control cabinet of unloading coal;
The unloading arm position sensor, arm PLC control cabinet is electrically connected with unloading coal, for detecting unloading arm change angle and will unload
Goods arm change angle is sent to unloading arm PLC control cabinet;
The unloading arm PLC control cabinet, the control command that control command or monitoring personnel for being provided according to host computer provide
Arm change angle of unloading coal is controlled, the arm change angle that will unload coal is sent to host computer and shows.
9. the PLC control system according to claim 1-8 applied to the above pure electric vehicle bulk freighter of kiloton,
It is characterized in that, further includes steering engine monitor and alarm system;
The steering engine monitor and alarm system includes rotation angle sensor, steering engine PLC control cabinet;
The rotation angle sensor, for detecting the rudder angle of steering engine and sending steering engine PLC control cabinet for rudder angle;
The steering engine PLC control cabinet for controlling the rudder angle of steering engine, and receives the rudder angle of rotation angle sensor transmission, rudder angle is sent out
It is sent to host computer and shows.
10. the PLC control system according to claim 1-8 applied to the above pure electric vehicle bulk freighter of kiloton,
It is characterized in that, further including auxiliary monitoring alarm system;
The auxiliary monitoring alarm system includes for detecting the fire for sending fire alarm signal to host computer when fire occurs
Calamity detection alarm unit, for detect heptafluoro-propane release when send heptafluoro-propane release alarm signal to host computer seven fluorine
Propane release alarm unit, for detecting that fresh water or sanitary sewage liquid level reach critical when send liquid level warning signal to upper
The fresh water and sanitary sewage liquid level warning unit of machine, for detecting battery flat ventilation equipment failure when send ventilation fault alarm
Signal to host computer battery flat ventilation fault alarm unit wherein one or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821988178.1U CN209112398U (en) | 2018-11-29 | 2018-11-29 | A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821988178.1U CN209112398U (en) | 2018-11-29 | 2018-11-29 | A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209112398U true CN209112398U (en) | 2019-07-16 |
Family
ID=67207016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821988178.1U Active CN209112398U (en) | 2018-11-29 | 2018-11-29 | A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209112398U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109367708A (en) * | 2018-11-29 | 2019-02-22 | 广州发展瑞华新能源电动船有限公司 | A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton |
-
2018
- 2018-11-29 CN CN201821988178.1U patent/CN209112398U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109367708A (en) * | 2018-11-29 | 2019-02-22 | 广州发展瑞华新能源电动船有限公司 | A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7308337B2 (en) | Crane installation, in particular container crane | |
CN209112398U (en) | A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton | |
CN107264830B (en) | Active safety docking aircraft system for aviation ground equipment | |
CN105858124A (en) | Intelligent conveying belt detection device | |
CN108411766A (en) | A kind of position compensation extension type is gone on board trestle control system and control method | |
CN109367708A (en) | A kind of PLC control system applied to the above pure electric vehicle bulk freighter of kiloton | |
KR100633017B1 (en) | Auto-Door Control System of Railroad Vehicle | |
CN205953374U (en) | A device for judging RTG operation in -process truck and container separation | |
KR20210050894A (en) | Battery enclosure emergency dump system for a ship and fire extinguishing method for a ship in case of fire generated in battery enclosure using the same | |
CN105539764A (en) | Improved self-rescue device for underwater vehicle | |
CN111055965B (en) | Waterborne bus passenger ship | |
CN217456273U (en) | Track ladder with prevent unexpected unhook function | |
CN103541297A (en) | Milling and planning tool fault detection and protection device of pavement milling machine | |
CN103395416B (en) | Double-air-channel rotation braking safety detector for gantry cranes | |
KR100445323B1 (en) | Emergency shut-down system for a ship | |
CN207089684U (en) | Air Ground Equipment active safety docks aircraft system | |
CN112061330B (en) | Automatic alarm technology for leakage of ship cargo tank | |
Sastry et al. | Automation of real time monitoring and controlling of a marine loading arm | |
CN203450124U (en) | Double-air-circuit rotary braking type safety detector for gantry crane | |
CN110001917B (en) | Control method for freight system of civil cargo aircraft | |
CN209640698U (en) | A kind of supply of grease Intelligent pipe net, which is adjusted, refutes platform monitor surface system | |
CN113485238A (en) | Bucket wheel machine fault online diagnosis system and device | |
CN205746044U (en) | Laser ranging formula pipeline breaks protection system soon | |
JPH09278190A (en) | Loading arm | |
CN205294819U (en) | Marine loading arm operating condition monitoring system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |