CN112324994B - Automatic lifting system and method for liquid conveying hose of pontoon - Google Patents
Automatic lifting system and method for liquid conveying hose of pontoon Download PDFInfo
- Publication number
- CN112324994B CN112324994B CN202010878805.1A CN202010878805A CN112324994B CN 112324994 B CN112324994 B CN 112324994B CN 202010878805 A CN202010878805 A CN 202010878805A CN 112324994 B CN112324994 B CN 112324994B
- Authority
- CN
- China
- Prior art keywords
- travel limit
- pontoon
- liquid conveying
- control system
- water level
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/01—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets for supporting or guiding the pipes, cables or protective tubing, between relatively movable points, e.g. movable channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/215—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction the movement being hydraulically or electrically controlled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/24—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with a special member for attachment to profiled girders
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ship Loading And Unloading (AREA)
Abstract
The invention discloses an automatic lifting system for a liquid conveying hose of a pontoon, which comprises: a pontoon; steel approach bridges; two ends of the liquid conveying hose are respectively communicated to the fixed pipelines of the wharf boat and the steel approach bridge; the travel limit switch groups are distributed beside the moving track of the steel approach bridge; the control system is connected with the travel limit switch, and the specified position relation between the travel limit switch and the liquid conveying hose is preset; when the water level changes, the steel approach bridge moves along the wharf boat and sequentially touches the travel limit switches in the travel, the travel limit switches automatically send instructions to the control system, and the control system receives the instructions and controls the liquid conveying hose to move to a preset designated position along the vertical direction. The invention also discloses an automatic lifting method. According to the invention, the control system is triggered when the steel approach bridge moves to a certain fixed position by a stepping control method, so that the liquid conveying hose is automatically adjusted to a proper height, the whole process is unattended, no manual operation is needed, and the operation intensity of workers can be reduced.
Description
Technical Field
The invention belongs to the technical field of laying process of a liquid conveying pipeline in a pontoon form, and relates to an automatic lifting system of a liquid conveying hose of a pontoon, in particular to an automatic lifting method by using the automatic lifting system of the liquid conveying hose of the pontoon.
Background
At present, floating wharfs are mostly adopted for various liquid chemical wharfs of Yangtze river. The pontoon and the movable steel approach bridge are basically adopted, and the steel approach bridge and the pontoon juncture conveying pipeline are connected by adopting a metal hose. Because the wharf boat coordinate position does not allow to change along with wantonly on the plane, so the water level change will produce the steel access bridge activity hinged-support and slide the phenomenon around on the wharf boat to lead to the fixed joint relative position on wharf boat and the steel access bridge to change, steel access bridge activity hinged-support moves backward during low water level, both relative position grow, activity hinged-support is stretched forward during high water level, both relative position diminish. The hose length is decided according to the distance between the hose and the water tank when the minimum water level is designed, and the hose length is inevitably overlong when the water level is high. The common practice in the industry is to use a lifting portal form and lift the hose by small-sized hoisting equipment such as an electric hoist or a chain block. Although the problem that the hose is too long can be solved, the hose is troublesome to adjust, workers are required to observe and monitor the water level and the state of the hose at any time, and the lifting equipment is frequently operated to lift or lower the hose. If the chain block is adopted, the labor intensity is very high. And the water level in plum rainy seasons on Yangtze river changes frequently, and the condition that the hose is damaged due to the fact that workers neglect and do not adjust in time happens occasionally, so that the environmental protection and safety risk of oil leakage of the pipeline can be caused.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
It is still another object of the present invention to provide an automatic lifting system for a fluid transfer hose of a pontoon which drives a mechanism to automatically adjust the hose to a desired height by triggering a control system when a steel approach bridge is moved to a fixed position by a stepped control. The whole process is unattended, the operation is not needed, and the operation intensity of workers can be reduced.
It is yet another object of the present invention to provide an automatic lifting method using an automatic lifting system for a fluid transfer hose of a pontoon.
Therefore, the technical scheme provided by the invention is as follows:
pontoon liquid delivery hose automatic rising system includes:
a pontoon;
a steel approach bridge having one end movably connected to the pontoon;
two ends of the liquid conveying hose are respectively communicated to the fixed pipelines on the wharf boat and the steel approach bridge;
the travel limit switch group is arranged on the wharf boat and distributed beside the moving track of the steel approach bridge, the travel limit switch group comprises a plurality of travel limit switches, and each travel limit switch is a touch switch;
the control system is in communication connection with the stroke limit switches, and the designated position relation between each stroke limit switch and the liquid conveying hose is preset in the control system;
when the water level changes, the steel approach bridge moves along with the water level changes along the wharf boat and sequentially touches a travel limit switch set in the travel of the wharf boat, when the travel limit switch is touched, the travel limit switch automatically sends an instruction to the control system, and the control system receives the instruction of each travel limit switch and controls the liquid conveying hose to move to a preset specified position along the vertical direction.
Preferably, the automatic lifting system for the liquid conveying hose of the pontoon further comprises:
the bearing device is arranged on one end of the pontoon close to the steel approach bridge along the vertical direction;
the movable balance beam is movably fixed on the bearing device along the horizontal direction, the liquid conveying hose is erected on the movable balance beam, and two ends of the liquid conveying hose are respectively positioned on two sides of the movable balance beam;
the driving device is fixed on the bearing device, provides power for the movable balance beam to move along the vertical direction, and is in communication connection with the control system;
when the travel limit switches are touched, the travel limit switches automatically send instructions to the control system, the control system receives the instructions of each travel limit switch and sends control instructions to the driving device, and the driving device is controlled to drive the movable balance beam to move in the vertical direction along the bearing device, so that the liquid conveying hose is moved to the preset specified position.
Preferably, in the automatic lifting system for the liquid conveying hose of the pontoon,
the number of the travel limit switches is determined according to the maximum water level drop H, 1 gear is arranged for 1-2 m of water level change, and n gears are divided:
the lifting range h of the movable balance beam is as follows:
h＝1.2·L
wherein L is the displacement of the steel approach bridge at the limit position on the wharf boat;
the gears of the movable balance beam correspond to the number of the travel limit switches, and the lifting height of each gear of the movable balance beam is controlled to be hi：
Preferably, the automatic lifting system for the liquid conveying hose of the pontoon further comprises:
sliding support, it set up in one end department of steel approach bridge, sliding support is fixed in can follow in the track on the wharf boat the track carries out reciprocal linear motion, travel limit switch group evenly arrange in orbital next door, and all be located same straight line, travel limit switch group be on a parallel with the moving direction of steel approach bridge.
Preferably, in the automatic lifting system for the liquid conveying hose of the pontoon, the displacement L of the extreme position of the sliding support of the steel approach bridge is as follows:
wherein l is the length of the steel approach bridge; h is the maximum water level drop;
the number of the travel limit switches is determined according to the maximum water level drop, 1 gear is arranged for 1-2 m of water level change, and n gears are divided:
the distance between the travel limit switches is uniformly distributed along the displacement range of the sliding support, and the distance D is
Preferably, the automatic lifting system for the liquid conveying hose of the pontoon further comprises:
the pressure sensor is arranged on the driving device and is in communication connection with the control system;
the alarm device is in communication connection with the control system;
the driving device is connected with the movable balance beam through the rope, and the pressure sensor monitors the tension of the rope in real time;
and when the tension value of the rope exceeds a threshold value, the control system controls the driving device to drive the movable balance beam to automatically descend along the bearing device until the tension value of the pressure sensor is reduced to a preset safety range, and meanwhile, the alarm device is started to give an alarm.
Preferably, in the automatic lifting system for the liquid conveying hose of the pontoon, the rope tension threshold value FmaxComprises the following steps:
Fmax＝(G1+G2+G3)/N
wherein G is1The dead weight of all the liquid conveying hoses; g2The dead weight of the liquid filled in all the liquid conveying hoses; g3The dead weight of the relevant device is driven by the movable balance beam and the attached rope; and N is the multiplying power of the rope.
The automatic lifting method of the automatic lifting system for the liquid conveying hose of the pontoon comprises the following steps:
when the water level changes, the pontoon rises or falls along the vertical direction, the steel approach bridge moves along the pontoon and sequentially touches a travel limit switch set in the travel,
when the travel limit switch is touched, the travel limit switch automatically sends an instruction to the control system,
the control system receives the instruction of each travel limit switch and sends a signal to control the liquid conveying hose to move to a preset specified position along the vertical direction;
wherein, the extreme position displacement L of the steel approach bridge is as follows:
wherein l is the length of the steel approach bridge; h is the maximum water level drop;
the number of the travel limit switches is determined according to the maximum water level drop H, 1 gear is arranged for 1-2 m of water level change, and n gears are divided:
the lifting range h of the movable balance beam is as follows:
h＝1.2·L
the distance between the travel limit switches is uniformly distributed along the displacement range of the sliding support, and the distance D is
The gears of the movable balance beam correspond to the number of the travel limit switches, and the lifting height of each gear of the movable balance beam is controlled to be hi：
Preferably, in the automatic lifting method,
when the water level falls back from a designed high water level to a designed low water level, the wharf boat descends vertically, the steel approach bridge rotates, one end of the steel approach bridge slides to the side edge of the wharf boat bank, the steel approach bridge sequentially touches travel limit switches set along the way, the travel limit switches automatically and sequentially send instructions to a control system, and the control system controls the graded lifting of the liquid conveying hose to automatically and smoothly transit;
when the water level rises from the designed low water level to the designed high water level, the pontoon rises vertically, the steel approach bridge rotates, one end slides to the pontoon river side, the steel approach bridge touches the travel limit switch who sets for along the way in proper order, the travel limit switch sends the order to control system in proper order automatically, control system control descends the automatic smooth transition of liquid conveying hose in grades.
Preferably, the automatic lifting method further includes the steps of:
providing a pressure sensor, wherein the pressure sensor is arranged on the driving device and is in communication connection with the control system;
providing an alarm device, wherein the alarm device is in communication connection with the control system;
providing a rope, wherein the driving device is connected with the movable balance beam through the rope, and the pressure sensor monitors the tension of the rope in real time;
when the tension value of the rope exceeds a threshold value, the control system controls the movable balance beam to automatically descend until the tension value of the pressure sensor is reduced to a preset safety range, and meanwhile, an alarm device is started to give an alarm;
said rope tension threshold FmaxComprises the following steps:
Fmax＝(G1+G2+G3)/N
wherein G is1The dead weight of all the liquid conveying hoses; g2The dead weight of the liquid filled in all the liquid conveying hoses; g3The dead weight of the relevant device is driven by the movable balance beam and the attached rope; and N is the multiplying power of the rope.
The invention at least comprises the following beneficial effects:
the invention relates to an automatic lifting system for a liquid conveying hose of a pontoon, which triggers a control system when a steel approach bridge moves to a certain fixed position by a stepping control method and drives a mechanical device to automatically adjust the hose to a proper height. The whole process is unattended, the operation is not needed, and the operation intensity of workers can be reduced.
The control method for hierarchical control provided by the invention adopts the travel switch to detect the position trigger control instruction of the steel approach bridge sliding hinged support, and has the characteristics of high reliability, low manufacturing cost and easy maintenance. By combining mapping, theoretical calculation and measured data, a reasonable control step number calculation method and a lifting height calculation method of each step are provided, the control precision is ensured to meet the requirement, and system faults caused by frequent adjustment are avoided.
According to the invention, the pressure sensor is arranged on the driving device, the safety protection device is provided, the tension of the steel wire rope is transmitted to the pressure sensor, the tension value of the steel wire rope is detected in real time, no matter in a manual or automatic control mode, the height of the balance beam is automatically adjusted downwards when the tension of the steel wire rope exceeds a threshold value, the extreme condition that the water level is rapidly changed in the automatic control mode or a hose is broken due to misoperation of a worker in the manual mode can be prevented, and the safety of an oil pipeline system is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic elevation structure view of an automatic lifting system for a liquid conveying hose of a pontoon according to the invention;
fig. 2 is a schematic structural diagram of the automatic lifting system for the liquid conveying hose of the pontoon according to the invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, the present invention provides an automatic lifting system for a fluid delivery hose of a pontoon, comprising:
the wharf boat 4 is used for berthing a ship and loading and unloading operations, adopts a positioning pile or anchoring positioning, is fixed in plane position and can only lift along with the change of water level; i.e. its leading edge is not movable, it rises and falls with the water level change.
One end of the steel approach bridge 8 is movably connected to the pontoon 4, the land side end of the steel approach bridge is provided with a fixed hinged support, and the water side end of the steel approach bridge is provided with a sliding support; along with the water level change, the sliding support rotates around the fixed hinge support, and the sliding support slides back and forth on the pontoon 4 relatively. The water level is kept relatively smooth along with the requirement of water level change, the maximum bending radius is not less than 12 times of pipe diameter, and the water level can not be randomly placed on the ground and bent.
Two ends of the liquid conveying hose 7 are respectively communicated to the fixed pipeline 401 of the wharf boat 4 and the fixed pipeline 801 on the steel approach bridge 8; the solid pipeline is used for conveying liquid.
The travel limit switch group is arranged on the wharf boat 4 and distributed beside the moving track of the steel approach bridge 8, the travel limit switch group comprises a plurality of travel limit switches 6, and each travel limit switch 6 is a touch switch;
the control system 5 is in communication connection with the travel limit switches 6, and the designated position relation between each travel limit switch 6 and the liquid conveying hose 7 is preset in the control system 5; in one embodiment of the invention, the control system 5 is provided as a local control box.
Wherein, when the water level changes, steel approach bridge 8 changes along with the water level the landing stage 4 takes place to remove to touch the travel limit switch 6 of setting for in its stroke in proper order, work as when travel limit switch 6 is touched, travel limit switch 6 to control system 5 is automatic to send the instruction, control system 5 receives every travel limit switch 6's instruction and control liquid delivery hose 7 moves to predetermined assigned position along vertical direction.
In one embodiment of the present invention, preferably, the automatic lifting system for a liquid conveying hose of a pontoon further comprises:
the bearing device 1 is arranged on one end, close to the steel approach bridge 8, of the wharf boat 4 in the vertical direction; the carrying device 1 can adopt a portal, and is preferably a portal steel structure.
The movable balance beam 3 is movably fixed on the bearing device 1 along the horizontal direction, the liquid conveying hose 7 is erected on the movable balance beam 3 and used for supporting the liquid conveying hose 7, and two ends of the liquid conveying hose 7 are respectively positioned on two sides of the movable balance beam 3; a plurality of pipe clamps are arranged on the movable balance beam 3, and each liquid conveying hose 7 is arranged between two adjacent pipe clamps; the liquid delivery hose 7 rests on it, maintaining a relative spacing, without play.
The driving device 2 is fixed on the bearing device 1, the driving device 2 provides power for the movable balance beam 3 to move along the vertical direction, and the driving device 2 is in communication connection with the control system 5; the driving device 2 is a power unit which is arranged above the portal frame and used for driving the movable balance beam 3 to ascend and descend. The driving device 2 adopts an electric hoist or a winch.
When the travel limit switches 6 are touched, the travel limit switches 6 automatically give instructions to the control system 5, the control system 5 receives the instructions of each travel limit switch 6 and gives control instructions to the driving device 2, and the driving device 2 is controlled to drive the movable balance beam 3 to move in the vertical direction along the bearing device 1, so that the liquid conveying hose 7 is moved to the preset specified position. According to the invention, when the steel guide bridge 8 is moved to a certain fixed position by a step control method, the control system 5 is triggered, and the mechanical device is driven to automatically adjust the hose to a proper height. The whole process is unattended, the operation is not needed, and the operation intensity of workers can be reduced.
In the above embodiment, preferably, in the automatic lifting system for the liquid conveying hose of the pontoon, the number of the travel limit switches 6 is determined according to the maximum water head H, 1 grade is set for the water level change of 1-2 m, and n grades are divided:
the lifting range h of the movable balance beam 3 is as follows:
h＝1.2·L
wherein, L is the displacement of the steel approach bridge 8 at the limit position of the pontoon 4;
the gears of the movable balance beam 3 are arranged corresponding to the number of the travel limit switches 6, and the lifting height of each gear of the movable balance beam 3 is controlled to be hi：
In the above embodiment, preferably, the automatic lifting system for a liquid conveying hose of a pontoon further comprises:
sliding support, it set up in the one end department of steel approach bridge 8, sliding support is fixed in can follow in the track on the wharf boat 4 the track carries out reciprocal linear motion, 6 groups of stroke limit switch evenly arrange in orbital other limit, and all be located same straight line, 6 groups of stroke limit switch are on a parallel with the moving direction of steel approach bridge 8.
In the above embodiment, preferably, in the automatic lifting system for a liquid conveying hose of a pontoon, the extreme position displacement L of the sliding support of the steel approach bridge 8 is:
wherein l is the length of the steel approach bridge 8; h is the maximum water head;
the number of the travel limit switches 6 is determined according to the maximum water level drop, 1 gear is arranged for 1-2 m of water level change, and n gears are divided:
the distance between the travel limit switches 6 is uniformly distributed along the displacement range of the sliding support, and the distance D is
In one embodiment of the present invention, preferably, the control system 5 of the present invention is disposed on the pontoon 4, and can switch the manual control mode to manually control the lifting height of the balance beam; and the lifting height can be adjusted by adjusting the time parameter of the time relay. This pontoon liquid transport hose automatic lifting system still includes:
the pressure sensor 9 is arranged on the driving device 2, and the pressure sensor 9 is in communication connection with the control system 5;
the alarm device is in communication connection with the control system 5;
the driving device 2 is connected with the movable balance beam 3 through the rope, and the pressure sensor 9 monitors the tension of the rope in real time;
and when the tensile value of the rope exceeds a threshold value, the control system 5 controls the driving device 2 to drive the movable balance beam 3 to automatically descend along the bearing device 1 until the tensile value of the pressure sensor 9 is reduced to a preset safety interval, and meanwhile, the alarm device is started to give an alarm.
In the above embodiment, preferably, the rope tension threshold FmaxComprises the following steps:
Fmax＝(G1+G2+G3)/N
wherein G is1The dead weight of all the liquid conveying hoses 7; g2The dead weight of the liquid filled in the liquid conveying hose 7; g3The dead weight of the relevant device is driven for the movable balance beam 3 and the attached rope; and N is the multiplying power of the rope. In one embodiment of the invention, the rope is a steel wire rope. The safety protection device provided by the invention transmits the tension of the steel wire rope to the pressure sensor 9, detects the tension value of the steel wire rope in real time, automatically adjusts the height of the balance beam downwards no matter the tension of the steel wire rope exceeds a threshold value in a manual or automatic control mode, can prevent the occurrence of the extreme condition that the water level is changed suddenly in the automatic control mode or the liquid conveying hose 7 is pulled off due to misoperation of workers in the manual mode, and improves the safety of a liquid conveying pipeline system.
The invention also provides an automatic lifting method using the automatic lifting system for the liquid conveying hose of the pontoon, which comprises the following steps:
when the water level changes, the pontoon 4 rises or falls along the vertical direction, the steel approach bridge 8 also moves along the pontoon 4 and sequentially touches the travel limit switches 6 set in the travel,
when the travel limit switch 6 is touched, the travel limit switch 6 automatically gives an instruction to the control system 5,
the control system 5 receives the instruction of each travel limit switch 6 and sends a signal to control the liquid conveying hose 7 to move to a preset specified position along the vertical direction;
wherein, the extreme position displacement L of the steel approach bridge 8 (namely the sliding support) is as follows:
wherein l is the length of the steel approach bridge 8; h is the maximum water head;
the quantity of the travel limit switches 6 is determined according to the maximum water level drop H, 1 grade is arranged for 1-2 m of water level change, and n grades are divided:
the lifting range h of the movable balance beam 3 is as follows:
h＝1.2·L
the distance between the travel limit switches 6 is uniformly distributed along the displacement range of the sliding support, and the distance D is
The gears of the movable balance beam 3 are arranged corresponding to the number of the travel limit switches 6, and the lifting height of each gear of the movable balance beam 3 is controlled to be hi：
The travel switch is adopted to detect the position trigger control instruction of the sliding hinged support of the steel approach bridge 8, and the steel approach bridge has the characteristics of high reliability, low manufacturing cost and easy maintenance. By combining mapping, theoretical calculation and actual measurement data, a reasonable control step number calculation method and a lifting height calculation method of each step are provided, the control precision is ensured to meet the requirement, and system faults caused by frequent adjustment are avoided.
In the above scheme, preferably, when the water level falls back from a designed high water level to a designed low water level, the pontoon 4 vertically descends, the steel approach bridge 8 rotates, one end slides to the side of the pontoon 4 bank, the steel approach bridge 8 sequentially touches the travel limit switches 6 set along the way, the travel limit switches 6 automatically and sequentially send instructions to the control system 5, and the control system 5 controls the graded lifting liquid conveying hose 7 to automatically and smoothly transit;
when the water level rises from the design low water level to the design high water level, the wharf boat 4 rises vertically, the steel approach bridge 8 rotates, one end slides to the wharf boat 4 river side, the steel approach bridge 8 touches the travel limit switch 6 set for along the way in proper order, the travel limit switch 6 sends out the order to the control system 5 in proper order automatically, the control system 5 controls the automatic smooth transition of the liquid conveying hose 7 which descends in grades.
In the above-mentioned scheme, as a preference, the fine adjustment can be carried out by switching the manual mode at any time through the local control box,
providing a pressure sensor 9, wherein the pressure sensor 9 is arranged on the driving device 2, and the pressure sensor 9 is in communication connection with the control system 5;
providing an alarm device which is in communication connection with the control system 5;
providing a rope, connecting the driving device 2 with the movable balance beam 3 through the rope, and monitoring the tension of the rope in real time by the pressure sensor 9;
when the pulling force value of the rope exceeds a threshold value, the control system 5 controls the movable balance beam 3 to automatically descend until the pulling force value of the pressure sensor 9 is reduced to a preset safety range, and meanwhile, an alarm device is started to give an alarm;
said rope tension threshold FmaxComprises the following steps:
Fmax＝(G1+G2+G3)/N
wherein G is1The dead weight of all the liquid conveying hoses 7; g2The dead weight of the liquid filled in the liquid conveying hose 7; g3The dead weight of the relevant device is driven for the movable balance beam 3 and the attached rope; and N is the multiplying power of the rope.
In order to make the technical scheme of the invention better understood by those skilled in the art, the following examples are now provided for illustration:
as shown in fig. 1 and 2, the main device movement relationships and relative position dimensions of the system are displayed.
The wharf boat 4 is used for berthing a ship and loading and unloading operations, adopts a positioning pile or anchoring positioning, is fixed in plane position and can only lift along with the change of water level;
the land side end of the steel approach bridge 8 is provided with a fixed hinged support which is arranged on a fixed abutment, and the water side end of the steel approach bridge is provided with a sliding support which is placed on the pontoon 4 and moves linearly along a track on the pontoon 4; when the water level rises, the steel approach bridge 8 rotates around the fixed hinge support, and the sliding support slides relatively towards the front edge of the wharf boat 4. When the water level is reduced, the steel approach bridge 8 reversely rotates around the fixed hinge support, the sliding support relatively slides towards the rear edge of the pontoon 4, the water level variation range H is within the corresponding movement distance L of the sliding support.
A hose connected between the fixed pipe 401 of the pontoon 4 and the fixed pipe 801 on the steel access bridge 8 for compensating for the change in pipe length between the fixed pipes caused by the movement of the steel access bridge 8 and the pontoon 4;
the portal frame is arranged on the portal steel structure bearing device 1 on the pontoon 4;
as shown in fig. 2, the main device installation position of the display system is shown schematically. The method mainly comprises the following steps: the device comprises a bearing device 1, a driving device 2, a movable balance beam 3, a pontoon 4, a control system 5, a travel limit switch 6, a liquid conveying hose 7, a steel approach bridge 8 and a pressure sensor 9.
The invention provides a control method of an automatic lifting system of a liquid conveying hose of a pontoon, which comprises the following steps:
the method comprises the following steps that firstly, the water level falls back from a designed high water level to a designed low water level, a wharf boat 4 descends vertically, a steel approach bridge 8 rotates around a fixed hinged support, a sliding support of the steel approach bridge 8 slides towards the side edge of the wharf boat 4, the steel approach bridge 8 sequentially touches a travel limit switch 6 set along the way, the limit switch automatically and sequentially sends instructions to control a driving device 2 to lift a balance beam and a hose to a specified position in a grading manner, and the hose is kept in automatic smooth transition in the whole process;
step two, the water level rises from a designed low water level to a designed high water level, the pontoon 4 vertically rises, the steel approach bridge 8 rotates around the fixed hinged support, the sliding support of the steel approach bridge 8 slides to the side of the pontoon 4, the steel approach bridge 8 sequentially touches a stroke limit switch 6 set along the way, the limit switch automatically and sequentially sends out instructions to control the driving device 2 to descend the balance beam and the hose to a specified position in a grading way, and the hose is automatically and smoothly transited in the whole process;
step three, in the processes of the step one and the step two, the manual mode can be switched at any time through the local control box for fine adjustment, the driving device 2 is provided with the pressure sensor 9, the tension of the steel wire rope is monitored in real time, the balance beam automatically descends until the tension is reduced to a safety interval after the tension exceeds a threshold value, and meanwhile, the alarm device is started to give an alarm.
Wherein, the displacement L of the steel approach bridge 8 at the limit position is as follows:
wherein l is the length of the steel approach bridge 8; h is the maximum water level drop;
the quantity of the travel limit switches 6 is determined according to the maximum water level drop H, 1 grade is arranged for 1-2 m of water level change, and n grades are divided:
the lifting range h of the movable balance beam 3 is as follows:
h＝1.2·L
the key parameters of the system are determined, the distance of the travel switches is uniformly distributed in the displacement range of the sliding support, and the distance is
Each gear of the balance beam controls the lifting height to be:
measuring a steel wire rope tension threshold in a safety device:
Fmax＝(G1+G2+G3)/N
wherein l is the length of the steel approach bridge 8; h is the maximum water level drop; g1The dead weight of all the hoses; g2The dead weight of the liquid filled in all the hoses; g3The self-weight of the balance beam and the attached steel wire rope pulley and other devices; and N is the multiplying power of the steel wire rope.
The number of modules and the processing scale described herein are intended to simplify the description of the invention. Applications, modifications and variations of the present automated pontoon liquid conveying hose lifting system and method will be apparent to those skilled in the art.
The automatic lifting system for the liquid conveying hose of the pontoon disclosed by the invention has the advantages that the control system 5 is triggered when the steel approach bridge 8 moves to a certain fixed position by a stepping control method, and the mechanical device is driven to automatically adjust the liquid conveying hose 7 to a proper height. The whole process is unattended, the operation is not needed, and the operation intensity of workers can be reduced.
According to the invention, the pressure sensor 9 is arranged on the driving device 2, and when the tension of the steel wire rope exceeds the tension threshold value, the system automatically reduces the height of the balance beam until the tension is reduced to a safe range. The pulling force threshold value is the sum of the dead weight of all hoses, the weight of liquid filled in the hoses under full load, the dead weight of balance beams and steel wire rope pulleys, and the maximum value is calculated according to the multiplying power of the steel wire rope. If the value exceeds the value, the hose is proved to be stretched straight, additional tensile force is transmitted to the steel wire rope by the hose, the height of the balance beam is reduced, and the limit condition that the hose is broken due to sudden change of the water level or misoperation of workers can be prevented.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in a variety of fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. Pontoon liquid delivery hose automatic lifting system, its characterized in that includes:
a pontoon;
a steel approach bridge having one end movably connected to the pontoon;
two ends of the liquid conveying hose are respectively communicated to the fixed pipelines on the wharf boat and the steel approach bridge;
the travel limit switch group is arranged on the wharf boat and distributed beside the moving track of the steel approach bridge, the travel limit switch group comprises a plurality of travel limit switches, and each travel limit switch is a touch switch;
the control system is in communication connection with the travel limit switches, and the designated position relation between each travel limit switch and the liquid conveying hose is preset in the control system;
when the water level changes, the steel approach bridge moves along with the water level changes, the pontoon moves, the travel limit switches set in the travel of the pontoon are sequentially touched, when the travel limit switches are touched, the travel limit switches send instructions to the control system automatically, and the control system receives the instructions of each travel limit switch and controls the liquid conveying hose to move to a preset specified position along the vertical direction.
2. The automated pontoon liquid conveying hose lifting system of claim 1, further comprising:
the bearing device is arranged on one end of the pontoon close to the steel approach bridge along the vertical direction;
the movable balance beam is movably fixed on the bearing device along the horizontal direction, the liquid conveying hose is erected on the movable balance beam, and two ends of the liquid conveying hose are respectively positioned on two sides of the movable balance beam;
the driving device is fixed on the bearing device, provides power for the movable balance beam to move along the vertical direction, and is in communication connection with the control system;
when the travel limit switches are touched, the travel limit switches automatically send instructions to the control system, the control system receives the instructions of each travel limit switch and sends control instructions to the driving device, and the driving device is controlled to drive the movable balance beam to move in the vertical direction along the bearing device, so that the liquid conveying hose is moved to the preset specified position.
3. The automated pontoon liquid conveying hose lifting system of claim 2,
the number of the travel limit switches is determined according to the maximum water level drop H, 1 gear is arranged for 1-2 m of water level change, and n gears are divided:
the lifting range h of the movable balance beam is as follows:
h＝1.2·L
wherein L is the displacement of the steel approach bridge at the limit position on the wharf boat;
the gears of the movable balance beam correspond to the number of the travel limit switches, and the lifting height of each gear of the movable balance beam is controlled to be hi：
4. The automated pontoon liquid conveying hose lifting system of claim 2, further comprising:
sliding support, it set up in one end department of steel approach bridge, sliding support is fixed in can follow in the track on the wharf boat the track carries out reciprocal linear motion, travel limit switch group evenly arrange in orbital next door, and all be located same straight line, travel limit switch group be on a parallel with the moving direction of steel approach bridge.
5. The automated pontoon liquid conveying hose lifting system of claim 4, wherein the extreme positional displacement L of the shoe of the steel approach bridge is:
wherein l is the length of the steel approach bridge; h is the maximum water head;
the number of the travel limit switches is determined according to the maximum water level drop, 1 gear is arranged for 1-2 m of water level change, and n gears are divided:
the distance between the travel limit switches is uniformly distributed along the displacement range of the sliding support, and the distance D is
6. The automated pontoon liquid conveying hose lifting system of claim 2, further comprising:
the pressure sensor is arranged on the driving device and is in communication connection with the control system;
the alarm device is in communication connection with the control system;
the driving device is connected with the movable balance beam through the rope, and the pressure sensor monitors the tension of the rope in real time;
and when the tension value of the rope exceeds a threshold value, the control system controls the driving device to drive the movable balance beam to automatically descend along the bearing device until the tension value of the pressure sensor is reduced to a preset safety range, and meanwhile, the alarm device is started to give an alarm.
7. The automated pontoon liquid conveying hose lifting system of claim 6, wherein the rope tension threshold FmaxComprises the following steps:
Fmax＝(G1+G2+G3)/N
wherein G is1The dead weight of all the liquid conveying hoses; g2The dead weight of the liquid filled in all the liquid conveying hoses; g3The dead weight of the relevant device is driven by the movable balance beam and the attached rope; and N is the multiplying power of the rope.
8. The automatic lifting method using the automatic lifting system for pontoon liquid conveying hose according to claim 4, characterized by comprising the steps of:
when the water level changes, the pontoon rises or falls along the vertical direction, the steel approach bridge moves along the pontoon and sequentially touches a travel limit switch set in the travel,
when the travel limit switch is touched, the travel limit switch automatically sends an instruction to the control system,
the control system receives the instruction of each travel limit switch and sends a signal to control the liquid conveying hose to move to a preset specified position along the vertical direction;
wherein, the extreme position displacement L of the steel approach bridge is as follows:
wherein l is the length of the steel approach bridge; h is the maximum water head;
the number of the travel limit switches is determined according to the maximum water level drop H, 1 gear is arranged for 1-2 m of water level change, and n gears are divided:
the lifting range h of the movable balance beam is as follows:
h＝1.2·L
the distance between the travel limit switches is uniformly distributed along the displacement range of the sliding support, and the distance D is
The gears of the movable balance beam correspond to the number of the travel limit switches, and the lifting height of each gear of the movable balance beam is controlled to be hi：
9. The automatic lifting method according to claim 8,
when the water level falls back from the designed high water level to the designed low water level, the pontoon descends vertically, the steel approach bridge rotates, one end slides to the side edge of the pontoon bank, the steel approach bridge sequentially touches a travel limit switch set along the way, the travel limit switch automatically and sequentially sends instructions to a control system, and the control system controls the graded lifting of the liquid conveying hose to realize automatic smooth transition;
when the water level rises from the designed low water level to the designed high water level, the pontoon rises vertically, the steel approach bridge rotates, one end slides to the pontoon river side, the steel approach bridge touches the travel limit switch who sets for along the way in proper order, the travel limit switch sends the order to control system in proper order automatically, control system control descends liquid delivery hose automatic smooth transition in grades.
10. The automatic lifting method according to claim 9, further comprising the steps of:
providing a pressure sensor, wherein the pressure sensor is arranged on the driving device and is in communication connection with the control system;
providing an alarm device, wherein the alarm device is in communication connection with the control system;
providing a rope, wherein the driving device is connected with the movable balance beam through the rope, and the pressure sensor monitors the tension of the rope in real time;
when the tension value of the rope exceeds a threshold value, the control system controls the movable balance beam to automatically descend until the tension value of the pressure sensor is reduced to a preset safety range, and meanwhile, an alarm device is started to give an alarm;
said rope tension threshold FmaxComprises the following steps:
Fmax＝(G1+G2+G3)/N
wherein G is1The dead weight of all the liquid conveying hoses; g2The dead weight of the liquid filled in all the liquid conveying hoses; g3The dead weight of the relevant device is driven by the movable balance beam and the attached rope; and N is the multiplying power of the rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010878805.1A CN112324994B (en) | 2020-08-27 | 2020-08-27 | Automatic lifting system and method for liquid conveying hose of pontoon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010878805.1A CN112324994B (en) | 2020-08-27 | 2020-08-27 | Automatic lifting system and method for liquid conveying hose of pontoon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112324994A CN112324994A (en) | 2021-02-05 |
| CN112324994B true CN112324994B (en) | 2022-07-01 |
Family
ID=74303717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010878805.1A Active CN112324994B (en) | 2020-08-27 | 2020-08-27 | Automatic lifting system and method for liquid conveying hose of pontoon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112324994B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1126762A1 (en) * | 1983-03-01 | 1984-11-30 | Всесоюзный научно-исследовательский институт по строительству магистральных трубопроводов | Arrangement for alignment of underwater pipelines suspended |
| CN104261272A (en) * | 2014-09-16 | 2015-01-07 | 连云港佳普石化机械有限公司 | Hose crane |
| CN204898505U (en) * | 2015-03-20 | 2015-12-23 | 中交第二航务工程勘察设计院有限公司 | Floating -type wharf steel drawn bridge connecting device of self -adaptation water -level fluctuation |
| CN206705562U (en) * | 2017-04-14 | 2017-12-05 | 中交第一航务工程勘察设计院有限公司 | Liquid-chemical terminal flexible pipe rack device |
| CN109896357A (en) * | 2019-02-21 | 2019-06-18 | 国电南瑞科技股份有限公司 | A kind of landing stage special intelligent twisted and released of the cable system |
| CN209294557U (en) * | 2018-12-14 | 2019-08-23 | 中交第二航务工程勘察设计院有限公司 | A kind of hose bracket structure suitable on floating wharf |
| CN110450910A (en) * | 2019-08-16 | 2019-11-15 | 青岛古镇口军民融合舰船装备技术保障有限公司 | A kind of tide is adaptively gone on board control system |
-
2020
- 2020-08-27 CN CN202010878805.1A patent/CN112324994B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1126762A1 (en) * | 1983-03-01 | 1984-11-30 | Всесоюзный научно-исследовательский институт по строительству магистральных трубопроводов | Arrangement for alignment of underwater pipelines suspended |
| CN104261272A (en) * | 2014-09-16 | 2015-01-07 | 连云港佳普石化机械有限公司 | Hose crane |
| CN204898505U (en) * | 2015-03-20 | 2015-12-23 | 中交第二航务工程勘察设计院有限公司 | Floating -type wharf steel drawn bridge connecting device of self -adaptation water -level fluctuation |
| CN206705562U (en) * | 2017-04-14 | 2017-12-05 | 中交第一航务工程勘察设计院有限公司 | Liquid-chemical terminal flexible pipe rack device |
| CN209294557U (en) * | 2018-12-14 | 2019-08-23 | 中交第二航务工程勘察设计院有限公司 | A kind of hose bracket structure suitable on floating wharf |
| CN109896357A (en) * | 2019-02-21 | 2019-06-18 | 国电南瑞科技股份有限公司 | A kind of landing stage special intelligent twisted and released of the cable system |
| CN110450910A (en) * | 2019-08-16 | 2019-11-15 | 青岛古镇口军民融合舰船装备技术保障有限公司 | A kind of tide is adaptively gone on board control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112324994A (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3199481B1 (en) | Apparatus for unwinding cables on seabeds and method of operation of an apparatus for unwinding cables on seabeds | |
| CN112324994B (en) | Automatic lifting system and method for liquid conveying hose of pontoon | |
| CN213871400U (en) | Lifting device for liquid conveying hose of pontoon | |
| CN207052306U (en) | A kind of double guide rail fuel transfer device manual-operated emergent mechanisms | |
| CN107663859B (en) | pile driver | |
| US6308844B1 (en) | Method for handling an equipment inside a building by a crane installed outside | |
| CN112850477B (en) | Ship lift, dock and working method of ship lift | |
| CN112079024B (en) | Intelligent flexible automatic warehousing system | |
| CN109019046A (en) | Full-automatic shelf heap, which is torn open, stamps feeder apparatus | |
| US3269562A (en) | Programmed handling apparatus | |
| CN108149641B (en) | Inclined float blocking system and float blocking method | |
| CN208802584U (en) | A kind of cabinet automatic stacking system | |
| CN112554158A (en) | Automatic recovery system and recovery method for water surface garbage | |
| CN111470333A (en) | Material pile scanning method and device of semi-portal scraper reclaimer and storage medium | |
| CN206873409U (en) | The two-way small Traffic control system erecting device of gate lower shaft | |
| EP0157864A1 (en) | Heave compensation for a pipeline hoisting system. | |
| US3606855A (en) | Barge handling system | |
| CN216444942U (en) | Hydraulic elevator applied to metering-level open test field | |
| CN212384872U (en) | Welding device | |
| CN111879503B (en) | Tower crane jib loading boom performance detection device | |
| CN216966821U (en) | Coal-winning machine cylinder maintenance upset platform | |
| CN215796285U (en) | Automatic detection and early warning device for large objects of underground belt conveyor of coal mine | |
| CN220664723U (en) | Floating crane anchor machine hoisting and shifting system | |
| CN220115998U (en) | Elevator mounting platform | |
| CN214990091U (en) | Prevent dragging wire rope derailment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |