CN209910708U - State monitoring system of cutter suction ship - Google Patents
State monitoring system of cutter suction ship Download PDFInfo
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- CN209910708U CN209910708U CN201920320200.3U CN201920320200U CN209910708U CN 209910708 U CN209910708 U CN 209910708U CN 201920320200 U CN201920320200 U CN 201920320200U CN 209910708 U CN209910708 U CN 209910708U
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Abstract
The utility model relates to a state monitoring system of ship is inhaled to hank belongs to ship machine monitoring technology field. The system comprises: the device comprises a sensor, acquisition equipment and a signal processing device; the sensor is fixed on ship equipment of the cutter suction ship; the acquisition equipment is respectively in communication connection with the sensor and the signal processing device; the sensor is used for acquiring a vibration signal of the ship equipment; the acquisition equipment is used for acquiring the vibration signal acquired by the sensor and sending the vibration signal to the signal processing device; and the signal processing device is used for comparing the vibration signal with a set vibration threshold value and outputting a state monitoring result of the cutter suction dredger according to a comparison result. Above-mentioned technical scheme has solved the problem that can't discover in time when the state of cutter suction ship appears the problem. The state of the cutter suction ship can be monitored in real time, and the state fault of the cutter suction ship can be found in time.
Description
Technical Field
The utility model relates to a ship machine monitoring technology field especially relates to state monitoring system that the ship was inhaled to the hank.
Background
The cutter suction dredger has the characteristics of offshore and high requirements for flow operation and reliability. Meanwhile, the power machine of the cutter suction dredger further includes a dredge tool apparatus that may be used for dredging construction, as compared to a general ship. The structure is complex, the working conditions are various, the working environment is severe, and the requirement on the performance of the power machinery is high. Therefore, the active monitoring of the state of the engineering ship is a precondition for ensuring the safe and reliable operation of the cutter suction dredger. In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art: at present, the monitoring of the cutter suction dredger is mainly realized by regularly checking the working state of the dredger by workers. Leading to failure in the state of the cutter suction vessel being not discovered in time.
Disclosure of Invention
Based on this, the embodiment of the utility model provides a state monitoring system that ship was inhaled to hank can realize automatically that the monitoring of ship state is inhaled to the hank, can in time monitor the state trouble that the ship was inhaled to the hank.
The embodiment of the utility model provides a content as follows:
a condition monitoring system for a cutter suction vessel, comprising: the device comprises a sensor, acquisition equipment and a signal processing device; the sensor is fixed on ship equipment of the cutter suction ship; the acquisition equipment is respectively in communication connection with the sensor and the signal processing device; the sensor is used for acquiring a vibration signal of the ship equipment; the acquisition equipment is used for acquiring the vibration signal acquired by the sensor and sending the vibration signal to the signal processing device; and the signal processing device is used for comparing the vibration signal with a set vibration threshold value and outputting a state monitoring result of the cutter suction dredger according to a comparison result.
In one embodiment, the sensor includes at least one of an acceleration sensor, a rotational speed sensor, a displacement sensor, and a temperature sensor.
In one embodiment, the acceleration sensor comprises a piezoelectric acceleration sensor; the rotation speed sensor comprises a magnetoelectric rotation speed sensor; the displacement sensor comprises an eddy current sensor.
In one embodiment, the sensor comprises an armored industrial-type sensor.
In one embodiment, the sensor is connected to the acquisition device by a signal line having a double shield.
In one embodiment, the marine vessel equipment comprises at least one of a diesel engine, a generator, a dredge pump diesel engine, a dredge pump gearbox, and a deck pump.
In one embodiment, the acceleration sensor is disposed at least one of: the driving end, the non-driving end and the ground margin of the diesel engine, the generator, the mud pump diesel engine and the mud pump gear box; the input end of the deck pump and the shell.
In one embodiment, the rotational speed sensor is arranged on an output shaft of the dredge pump gearbox.
In one embodiment, the displacement sensor is arranged at an input shaft of the deck pump.
In one embodiment, the distance between the sensor and the acquisition device is less than a set threshold.
In one embodiment, a display device is also included; and the signal processing device is also used for outputting the state monitoring result of the cutter suction dredger to the display equipment for displaying.
In one embodiment, the acquisition device is a distributed data acquisition instrument.
In the state monitoring system of the cutter suction dredger, the sensor is fixed on ship equipment of the cutter suction dredger and acquires a vibration signal of the ship equipment; the collecting equipment collects the vibration signal and sends the vibration signal to the signal processing device; and the signal processing device outputs the state monitoring result of the cutter suction dredger according to the state monitoring result. The state of the cutter suction ship can be monitored in real time, and the state fault of the cutter suction ship can be found in time.
Drawings
FIG. 1 is a block diagram of a condition monitoring system of a cutter suction vessel in one embodiment;
FIG. 2 is a block diagram of a condition monitoring system of a cutter suction vessel in another embodiment;
fig. 3 is a block diagram showing a state monitoring system of a cutter suction vessel in still another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the utility model provides a state monitoring system of cutter suction ship, include: a sensor 101, an acquisition device 102 and a signal processing device 103; the sensor 101 is connected with ship-machine equipment on the cutter suction ship; the acquisition equipment 102 is respectively in communication connection with the sensor 101 and the signal processing device 103; a sensor 101 for acquiring a vibration signal of the ship equipment; the acquisition equipment 102 is used for acquiring the vibration signal acquired by the sensor 101 and sending the vibration signal to the signal processing device 103; and the signal processing device 103 is used for comparing the vibration signal with a set vibration threshold value and outputting a state monitoring result of the cutter suction dredger according to the comparison result.
Wherein, the cutter suction dredger can be various types of cutter suction dredger.
The set vibration threshold value can be determined according to actual conditions, and when the vibration signal exceeds or falls below the vibration threshold value (specifically, exceeding or falling below the vibration threshold value can be determined according to actual conditions), the cutter suction ship can be considered to be in a fault state.
The state monitoring system of the cutter suction dredger provided by the embodiment can monitor the state of the cutter suction dredger in real time and find out the state fault of the cutter suction dredger in time.
In some embodiments, the sensor is an armored industrial-type sensor including at least one of an acceleration sensor, a rotational speed sensor, a displacement sensor, and a temperature sensor. The acceleration sensor can measure vibration signals (vibration amplitude, vibration frequency and the like) of the ship equipment in a certain direction; the rotating speed sensor can measure the rotating speed of a rotating shaft of the ship equipment; the displacement sensor can measure the distance moved by the ship equipment in a specific direction; the temperature sensor may measure a real-time temperature of the ship equipment.
In one aspect, the acceleration sensor may be a piezoelectric acceleration sensor, i.e., an ICP acceleration sensor of the sheathed industrial type. The armored industrial ICP acceleration sensor is suitable for vibration monitoring of engineering machinery in severe environments and is high in reliability. Specifically, the acceleration sensor may be a 315A-80 type acceleration sensor, and the relevant performance of the acceleration sensor is as follows: the sensitivity is 100mV/g, the frequency range is 0.3Hz-10000Hz +/-3 dB, the double-layer shell is designed with electric induction electric shielding, an M12 thread outlet wire, a base 1/4-28 English installation threaded hole/hexagonal cylinder shape, the transverse sensitivity is less than 5%, the two-core M12 aviation interface is provided, and a 9-meter wire is arranged. The acceleration sensor can also adopt a 315A-10 type acceleration sensor, and the relevant performances of the acceleration sensor of the type are as follows: the sensitivity is 500mV/g, the frequency range is 0.1Hz-10000Hz +/-3 dB, the double-layer shell is designed with electric induction electric shielding, an M12 thread outlet wire, a base 1/4-28 English installation threaded hole/hexagonal cylinder shape, the transverse sensitivity is less than 5%, the two-core M12 aviation interface is provided, and a 9-meter wire is arranged. The acceleration sensor may be a plurality of acceleration sensors that can only monitor a certain direction, for example: two acceleration sensors in the vertical and horizontal directions are respectively monitored; of course, if one sensor is capable of measuring vibration signals in multiple directions simultaneously, it is also possible to use only one sensor to monitor the vibration signals of the ship equipment.
In another aspect, the speed sensor comprises a magnetoelectric speed sensor. Specifically, a rotational speed sensor of FYSL04 type; the relevant performance of the speed sensor of this type is as follows: the measuring range is 0-10000 rpm, the precision is +/-1 word, the working temperature is-60-80 ℃, the gap between the iron core of the sensor and the speed measuring wheel is 0.5-3 mm, the number of pulses per revolution is consistent with the number of teeth (or the number of disc holes) of the detecting wheel, the signal transmission distance is 10M, and the external dimension is M16 multiplied by 1.
In yet another aspect, the displacement sensor is an eddy current sensor. Specifically, the displacement sensor can adopt a ZH-21-phi 8 type rotation speed sensor; the relevant performance of a tachometer sensor of this type is as follows: for the probe, the measuring range is 2mm, the diameter of the head body is phi 8, the length of the shell is 50mm, the specification of the thread is M10 x 1, and the total length of the probe is 1 meter; for the pre-positioning device, the power supply is-24 Vdc, the output mode is-2 to-18 v, the nonlinearity is less than 1%, the temperature range is-30 to 100 ℃, and the mounting mode is screw mounting.
The sensors may also include temperature sensors for monitoring oil temperature, bearing temperature, etc. So that the management personnel can process the temperature of the ship equipment in time when the temperature of the ship equipment is in fault. Of course, sensors for measuring signal quantities such as vacuum, flow, density, power, etc. may also be included.
Further, the sensor is connected with the acquisition equipment through a signal wire of the double shielding layers. The signal line of two shielding layers can effectively shield external interference signal, is more suitable for long distance signal transmission, guarantees that collection equipment acquires accurate ship aircraft equipment monitoring signal.
In some embodiments, the acquisition device (which may also be referred to as an acquisition instrument) may be various types of devices having data acquisition and integration capabilities. The following problems are mainly considered when selecting the acquisition equipment: 1. the processing capacity of the acquisition equipment needs to be increased, and the acquisition equipment needs not only proper sampling frequency and larger storage space but also rapid data calculation processing capacity; 2. the acquisition precision is an important factor for ensuring the acquisition of reliable data; 3. environmental factors must have strong reliability to ensure normal operation in severe environments.
Further, the acquisition equipment is a distributed data acquisition instrument. Specifically, an acquisition device of the INV3092A model may be used, and the relevant performance of the acquisition device of this model may be as follows: 16 channels, wherein an input port is subjected to terminal strip crimping, 24-bit AD is adopted, any one of an input signal type DC/AC/ICP/current/strain is selected, the sampling frequency range is 6.25-51.2KHz, a 1-gear range (plus or minus 50V/plusor minus 10V/plusor minus 5V/plusor minus 1V/plusor minus 100mV selects a gear), direct-current voltage can be output externally, an ICP coupling mode has an ICP sensor detection function, a GPS function, a 1-channel RS485 serial input port can be customized, a 100M network interface can be customized, an offline sampling function (an external storage card) can be customized, a built-in 3G/4G internet module can be customized, and a 2-channel rotating speed input can be customized (containing DASPEMB-SRV acquisition embedded service software; the acquisition equipment of the INV3092A model has 24-bit acquisition precision, 16 channels and a dynamic range of about 120dB, can well meet the high-precision measurement of data, has good anti-seismic and ventilation design, and can be suitable for long-term operation in severe environment.
The outside of collection equipment can be provided with the guard box. The protective housing can prevent electromagnetic interference, prevent damp, and can monitor under adverse circumstances for a long time, the reliability is high.
In addition, the number of the acquisition devices can be multiple, multiple acquisition devices can be conveniently cascaded and 1588 time synchronization can be conveniently carried out, and the acquisition device is suitable for acquisition of physical quantities such as vibration, noise, impact, strain, pressure, voltage and the like in distributed type, multi-point and long-distance transmission.
In the state monitoring system of the cutter suction dredger of the embodiment, the state of the cutter suction dredger can be monitored in real time, and the state fault of the cutter suction dredger can be found in time. And the sensors, the acquisition equipment and the like are all high-precision and high-performance devices, so that the accuracy of the acquired data can be further ensured, and the stability of a state monitoring system of the cutter suction dredger is ensured.
In one embodiment, as shown in fig. 2, the marine vessel equipment comprises at least one of a diesel engine, an electric generator, a dredge pump diesel engine, a dredge pump gearbox, and a deck pump.
The sensors may be located at a plurality of locations on the ship's equipment. Further, the distance between the sensor and the acquisition equipment is smaller than a set threshold (the threshold can be determined according to actual conditions) so as to acquire more accurate signals of the ship-plane equipment; in addition, the distance between the sensor and the acquisition equipment is reduced, signal interference can be avoided, cost is saved, and the reliability of the system is improved.
An example of the location of the sensor on the ship's equipment is shown in fig. 2 (the small circle in fig. 2 indicates the sensor). The acceleration sensors are disposed at the following positions: the driving end, the non-driving end and the ground margin of the diesel engine, the generator, the mud pump diesel engine and the mud pump gear box; an input end of the deck pump and a housing. The rotating speed sensor is arranged on an output shaft of the dredge pump gear box. The displacement sensor is arranged on an input shaft of the deck pump.
In one embodiment, a display device is also included; furthermore, the signal processing device is also used for outputting the state monitoring result of the cutter suction dredger to display equipment for displaying. The management personnel can determine the running state of the ship and airplane equipment through the state monitoring result displayed by the display equipment, and further realize the maintenance of the ship and airplane equipment.
In one embodiment, the acquisition device is provided with an ethernet interface; the acquisition equipment is communicated with the signal processing device through an Ethernet interface. Furthermore, one signal processing device can be connected with a plurality of acquisition devices through a LAN.
In one embodiment, as shown in fig. 2, the condition monitoring system of the cutter suction vessel further comprises an exchanger; the switch is respectively connected with the acquisition equipment and the signal processing device; the collecting device sends the vibration signal to the signal processing device through the switchboard.
Further, a Tenda (Tenda) TEG1009P-EI type switch may be employed. The relevant performance of this type of switch is as follows: network standards IEEE 802.11b, IEEE 802.11g, IEEE 802.11 n; the network interface has 2 10/100/1000Mbps WAN ports and 8 10/100/1000Mbps LAN ports, VPN supports, a firewall is built in the function of the firewall, and POE (Power Over Ethernet) power supply is supported.
This embodiment realizes the connection of collection equipment and signal processing device through the switch, can guarantee that collection equipment transmits the vibration signal for signal processing device reliably.
In order to better understand the above-mentioned condition monitoring system of the cutter suction dredger, an application example of the condition monitoring system of the cutter suction dredger according to the present invention is described in detail below, as shown in fig. 3.
The condition monitoring system of the cutter suction vessel comprises a sensor (not shown in figure 3), a collection device, a switch and a server of a centralized control room. All sensors are installed on key ship equipment, the sensors are connected with acquisition equipment, and the acquisition instrument transmits vibration signals acquired by the sensors to a server through a network cable. The ship and airplane personnel can check the operation conditions of all ship and airplane equipment in the centralized control room. The ship and engine equipment monitored by the cutter suction ship state monitoring system comprises a diesel engine, a generator, a dredge pump diesel engine, a dredge pump gear box and a deck pump.
The acquisition device is a 5-station INV3092A distributed data acquisition instrument (such as acquisition device 1/2/3/4/5 in fig. 3), and the sensor comprises 64 industrial acceleration sensors, 4 eddy current sensors (the eddy current sensors are arranged at the position of the mud pump shaft and aim to measure the axle center track information of the mud pump shaft) and 5 magnetoelectric speed sensors. The acquisition equipment can acquire the vibration signal corresponding to the ship aircraft equipment through the sensor. In addition, the acquisition equipment transmits vibration signals with the switch and the server through the network cable, so that the reliability of data transmission is ensured. The server processes the vibration signals transmitted by the acquisition equipment to obtain the running state of the ship equipment, and predicts the state trend and the failure of the equipment; as shown in fig. 3, the server can implement the following functions: the method comprises the steps of vibration signal real-time monitoring, vibration signal overrun alarming, vibration signal historical Data management, vibration signal trend analysis, ship engine fault diagnosis, rotor/gear/bearing fault analysis, bearing database management And Data remote monitoring, And can generate a ship engine monitoring report And a ship engine SCADA (Supervisory Control And Data Acquisition), Data And equipment maintenance record.
The relevant parameters of the selected acquisition devices, sensors and switches are shown in table 1 below:
TABLE 1 State monitoring System of cutter suction vessel
In order to capture the vibration signal of the ship equipment comprehensively, the measuring point position (the installation position of the sensor) is mainly selected to be close to the ship equipment. The distribution of the individual sensors is shown in table 2 below (where the sensors are all unidirectional, measuring only one direction of signal. X represents the front-to-back direction, Y represents the horizontal direction, and Z represents the vertical direction) and in fig. 2:
| serial number | Measuring point position | Sensor type | Direction of rotation |
| 1 | Shell of deck pump | Acceleration of a vehicle | Y |
| 2 | Deck pump input | Acceleration of a vehicle | Y，Z |
| 3 | Input shaft of deck pump | Displacement of | Y，Z |
| 4 | Output end of gear box of dredge pump | Acceleration of a vehicle | X，Y，Z |
| 5 | Output shaft of gear box of dredge pump | Rotational speed | Radial direction |
| 6 | Input end of gear box of dredge pump | Acceleration of a vehicle | X，Y，Z |
| 7 | Mud pump gear box foot | Acceleration of a vehicle | Z |
| 8 | Driving end of dredge pump diesel engine | Acceleration of a vehicle | Y，Z |
| 9 | Non-driving end of dredge pump diesel engine | Acceleration of a vehicle | Y，Z |
| 10 | Mud pump diesel engine foot margin | Acceleration of a vehicle | Z |
| 11 | Diesel engine driving end | Acceleration of a vehicle | X，Y，Z |
| 12 | Non-driving end of diesel engine | Acceleration of a vehicle | Y，Z |
| 13 | Diesel engine foot margin | Acceleration of a vehicle | Z |
| 14 | Generator drive end | Acceleration of a vehicle | X，Y，Z |
| 15 | Non-driving end of generator | Acceleration of a vehicle | Y，Z |
| 16 | Generator anchor | Acceleration of a vehicle | Z |
TABLE 2 location distribution of sensors
In the embodiment, based on the distributed field control bus structure, the acquisition instruments are distributed and installed in different measuring point areas, and the acquisition instruments are as close to the measuring points as possible, so that the length of a signal line from the sensor to the acquisition instruments is reduced, signal interference is avoided, the cost is saved, and the reliability of the system is improved. And the state of the cutter suction dredger can be monitored in real time, and the state fault of the cutter suction dredger can be found in time.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described embodiments merely represent some embodiments of the present invention, and are not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A condition monitoring system of a cutter suction vessel, comprising: the device comprises a sensor, acquisition equipment and a signal processing device; the sensor is fixed on ship equipment of the cutter suction ship; the acquisition equipment is respectively in communication connection with the sensor and the signal processing device;
the sensor is used for acquiring a vibration signal of the ship equipment;
the acquisition equipment is used for acquiring the vibration signal acquired by the sensor and sending the vibration signal to the signal processing device;
and the signal processing device is used for comparing the vibration signal with a set vibration threshold value and outputting a state monitoring result of the cutter suction dredger according to a comparison result.
2. The condition monitoring system of the cutter suction vessel according to claim 1, wherein the sensor comprises at least one of an acceleration sensor, a rotational speed sensor, a displacement sensor and a temperature sensor.
3. The condition monitoring system of the cutter suction vessel according to claim 2, wherein the acceleration sensor comprises a piezoelectric acceleration sensor; the rotation speed sensor comprises a magnetoelectric rotation speed sensor; the displacement sensor comprises an eddy current sensor.
4. The condition monitoring system of the cutter suction vessel according to claim 1, wherein the sensor comprises an armored industrial type sensor.
5. The condition monitoring system of the cutter suction vessel as claimed in claim 1, wherein the sensor is connected to the collecting device by a signal line having a double shielding layer.
6. The cutter suction vessel condition monitoring system according to claim 2, wherein the vessel equipment comprises at least one of a diesel engine, a generator, a dredge pump diesel engine, a dredge pump gearbox, and a deck pump.
7. The condition monitoring system of the cutter suction vessel as claimed in claim 6, wherein the acceleration sensor is provided at least one of the following positions: the driving end, the non-driving end and the ground margin of the diesel engine, the generator, the mud pump diesel engine and the mud pump gear box; an input end and a housing of the deck pump;
and/or the presence of a gas in the gas,
the rotating speed sensor is arranged on an output shaft of the dredge pump gear box;
and/or the presence of a gas in the gas,
the displacement sensor is arranged on an input shaft of the deck pump.
8. The condition monitoring system of the cutter suction vessel according to any one of claims 1 to 7, wherein the distance between the sensor and the collecting device is less than a set threshold value.
9. The cutter suction vessel condition monitoring system according to claim 1, further comprising a display device;
and the signal processing device is also used for outputting the state monitoring result of the cutter suction dredger to the display equipment for displaying.
10. The condition monitoring system of the cutter suction vessel as claimed in claim 1, wherein the collecting device is a distributed data collector.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111551234A (en) * | 2020-05-14 | 2020-08-18 | 中交华南勘察测绘科技有限公司 | Water level measuring method and device, computer equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111551234A (en) * | 2020-05-14 | 2020-08-18 | 中交华南勘察测绘科技有限公司 | Water level measuring method and device, computer equipment and storage medium |
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