阅读说明：本技术 一种船厢水位波动下升船机船厢准确对接方法 (Ship chamber accurate butt joint method of ship lift under fluctuation of ship chamber water level ) 是由 彭享文 齐俊麟 郑卫力 李然 金锋 向化雄 郑琴霞 张银婷 鄢玲祉 宋伟 于 2020-04-24 设计创作，主要内容包括：一种船厢水位波动下升船机船厢准确对接方法,船厢停位后,获取停位时刻前一小时闸首水位高程变化范围s-(1)～s-(2),对应引航道平均一小时水位变化值Δh,待一小时水位变化满足s-(2)-s-(1)≤Δh-(设)且Δh≤Δh-(设),进行步骤2；步骤2：获取船厢停位位置高程s,比较闸首预测最低水位h-(1)、预测最高水位h-(2)与船厢最大允许误载水深x-(下)、x-(上)及船厢停位位置高程s之间的关系,如果满足h-(2)-x-(上)≤s≤h-(1)+x-(下)条件则进步骤4,如果不满足条件则进行步骤3；步骤3、船厢位置调整,船厢重新运行距离L后停止,再次运行至对接位置,进行船厢停位位置校核,待满足h-(2)-x-(上)≤s≤h-(1)+x-(下)条件,进行步骤4：船厢与闸首进行对接。本发明实现减小升船机对接时段船厢水位变化幅度过大的目的,提高了升船机对接位置的准确性。(An accurate docking method for ship lift cabins under ship cabin water level fluctuation includes the steps of obtaining a lock head water level elevation change range s one hour before a parking moment after the ship cabins are parked 1 ～s 2 Corresponding to the average one-hour water level change value delta h of the approach channel, and when the one-hour water level change satisfies s 2 ‑s 1 ≤Δh Is provided with And Δ h is less than or equal to Δ h Is provided with And (5) performing the step (2); step 2: obtaining the elevation s of the ship compartment stopping position, and comparing the head of the lock to predict the lowest water level h 1 Predicting the highest water level h 2 Maximum allowable water depth x of mis-loading with ship chamber Lower part 、x On the upper part And the elevation s of the ship compartment at the parking position if h is satisfied 2 ‑x On the upper part ≤s≤h 1 +x Lower part If the condition is not met, performing step 4, and if the condition is not met, performing step 3; step 3, adjusting the position of the ship chamber, stopping the ship chamber after the ship chamber runs for a distance L again, running to the butt joint position again, checking the stop position of the ship chamber,to satisfy h 2 ‑x On the upper part ≤s≤h 1 +x Lower part Conditions, performing step 4: the ship chamber is butted with the lock head. The invention realizes the purpose of reducing the overlarge water level change amplitude of the ship chamber in the butt joint period of the ship lift and improves the accuracy of the butt joint position of the ship lift.)

1. A ship lift ship chamber accurate butt joint method under ship chamber water level fluctuation is characterized by comprising the following steps:

s1: the box entering ship enters a temporary berthing area from a berthing pier, berths at the temporary berthing area and waits for a box entering signal;

s2, after the ship chamber is parked, acquiring the elevation change range S of the head water level of the corresponding lock one hour before the parking moment₁～s₂Corresponding to the average one-hour water level change value delta h of the approach channel, s when the one-hour water level change meets the design condition₂-s₁≤Δh_{Is provided with}And Δ h is less than or equal to Δ h_{Is provided with}Go to S3;

s3, obtaining the ship chamber stop position elevation S, and comparing the corresponding brake head predicted water level h₁～h₂Maximum allowable water depth x of mis-loading with ship chamber_{Lower part}、x_{On the upper part}And the elevation s of the ship compartment at the parking position if h is satisfied₂-x_{On the upper part}≤s≤h₁+x_{Lower part}If the condition is satisfied, directly performing S5, and if the condition is not satisfied, performing S4;

s4, adjusting the position of the ship chamber, stopping the ship chamber after the ship chamber runs for a distance L again, running to the butt joint position again, and performing step 3 until h is met₂-x_{On the upper part}≤s≤h₁+x_{Lower part}Condition, proceed to S5;

s5, butting the ship chamber with the corresponding lock head, opening the ship chamber door and the lock head door, sending a chamber signal, and performing S6;

s6: and (4) untwisting and discharging the ship, finishing the discharging of the ship, closing the ship compartment door and the lock head door, removing the butt joint of the ship compartment, and finishing the process.

Technical Field

The invention relates to the technical field of ship lift operation, in particular to a ship lift cabin accurate butt joint method under ship cabin water level fluctuation.

Background

When the ship lift is in operation, the water level change of the upstream and downstream approach channels has great influence on the butt joint operation of the ship lift. In the process of ship chamber stopping, the ship chamber stopping is not accurate due to water level change, and in the process of ship chamber and lock head water connection, the ship chamber butt joint failure is easily caused due to overlarge fluctuation range of the water level change, so that the problem to be solved in the operation of the ship lift is to reasonably select and adjust the position of the ship chamber and deal with the water level fluctuation of a pilot channel.

The method for dealing with the water level fluctuation of the navigation channel in the prior art mainly comprises two methods: one is that energy dissipation facilities are built in a navigation channel, and the energy dissipation facilities are used for resisting and eliminating waves of water flow in the navigation channel so as to reduce water level fluctuation; the other is that the water level change of the ship lift at the head is reduced by constructing an auxiliary lock chamber and blocking a navigation channel from being in butt joint with a ship chamber. The two methods can solve the problem of the water level of the ship chamber when the ship lift is in butt joint, but both have some problems which are mainly shown in that: the construction of the engineering increases the operation complexity, influences the operation efficiency, increases the control of energy dissipation facilities or auxiliary lock chambers on the basis of the original vertical ship lift, and has the advantages of complex structure and large engineering investment.

Disclosure of Invention

In order to solve the technical problems, the invention provides the accurate docking method for the ship lift under the condition of ship lift water level fluctuation, which realizes the purpose of reducing the overlarge ship lift water level change amplitude in the docking period of the ship lift on the premise of considering engineering investment and improves the accuracy of the selection of the docking position of the ship lift.

The technical scheme adopted by the invention is as follows:

a ship lift ship chamber accurate butt joint method under ship chamber water level fluctuation comprises the following steps:

step 1: after the ship chamber of the ship lift is stopped, acquiring the corresponding head water level elevation change range s of the lock one hour before the stopping moment₁～s₂Corresponding to the average one-hour water level change value delta h of the approach channel, and when the one-hour water level change satisfies s₂-s₁≤Δh_{Is provided with}And Δ h is less than or equal to Δ h_{Is provided with}And (5) performing the step (2);

step 2: obtaining the elevation s of the ship compartment stopping position, and comparing the predicted lowest water level h corresponding to the lock head₁Predicting the highest water level h₂Maximum allowable water depth x of mis-loading with ship chamber_{Lower part}、x_{On the upper part}And the elevation s of the ship compartment at the parking position if h is satisfied₂-x_{On the upper part}≤s≤h₁+x_{Lower part}Condition (a) wherein₁＝s₁+Δh·t_{To pair}Step 4 is directly carried out, and if the condition is not met, step 3 is carried out;

step 3, adjusting the position of the ship chamber, stopping the ship chamber after the ship chamber runs for a distance L again, running the ship chamber to the butt joint position again, checking the rationality of the stop position of the ship chamber until h is met₂-x_{On the upper part}≤s≤h₁+x_{Lower part}Condition of carrying out the stepStep 4;

and 4, butting the ship chamber with the corresponding lock head.

Adding a butt joint adjusting process after the ship lift cabin parking process, setting temporary berthing areas on the upper lock head and the lower lock head of the ship lift, wherein the temporary berthing areas are navigation walls with proper length, the length L of the temporary berthing areas is not less than the maximum-scale ship berthing required length of the ship lift which can pass through, setting a safety interval between the temporary berthing areas and corresponding lock head doors, and allowing ships entering the ship cabin to enter the temporary berthing areas from berthing piers and berth in the temporary berthing areas to enter the ship cabin after waiting for a ship entering signal.

In step 1, the water level change value Δ ha ═ k for the upstream approach path for one hour₁(Q_Into-Q_{Go out}) Wherein Q is_IntoFor the hub warehousing traffic, Q_{Go out}For the hub delivery flow, k₁Is a proportionality coefficient; the water level change value delta hb of the downstream approach channel in one hour is in direct proportion to the flow change of the hub ex-warehouse, namely, the delta hb is k₂Delta Q, where, Delta Q is the variation of the delivery flow of the hub, k₂Is a scaling factor.

In the step 1, the boundary condition of the water level change amplitude value within one hour is s₂-s₁≤Δh_{Is provided with}And Δ h is less than or equal to Δ h_{Is provided with}The change of the water level at the head of the lock in hours and the change of the water level of the approach channel in one hour are both smaller than the change requirement in design hours when the ship compartments are butted.

In the step 2, the gate head predicts the water level h₁＝s₁+Δh·t_{To pair}，h₂＝s₂+Δh·t_{To pair}In the formula, h₁Predicting the lowest water level for the head of the sluice gate, h₂Predicting the minimum water level, t, for the head of the sluice_{To pair}And (4) the time from the docking of the ship chamber to the completion of the opening of the ship chamber door is represented by delta h which is a one-hour water level change value of the corresponding navigation channel.

In the step 3, the position of the ship chamber is adjusted and the distance L of the ship chamber is increased to satisfy that L is more than or equal to L_Quasi-drugIn the formula I_Quasi-drugThe effective distance of the accurate stop device of the ship lift is obtained.

The invention relates to a ship lift cabin accurate butt joint method under the fluctuation of ship cabin water level, which has the following technical effects:

(1): by setting the temporary berthing area, the time for the ship to enter the ship chamber is reduced, so that the butt joint time of the ship chamber and the lock chamber is reduced, and the condition of overlarge water level change of the ship chamber is reduced.

(2): the ship chamber position is checked and adjusted, and by selecting a reasonable ship chamber butt joint position, the occurrence of ship chamber and lock head butt joint failure is reduced, the ship chamber mis-loading water depth is reduced, and the butt joint safety of the ship lift is improved.

(3): the invention reduces the influence on the ship lift caused by the water level change of the approach channel by optimizing the flow and using a mode with less investment.

(4): the invention is suitable for the ship lift constructed on a natural river, can increase the judgment condition of the position of the ship chamber through flow optimization, reduce the influence of the water level change of the approach channel on the operation of the ship lift, reduce the operation fault and increase the navigation safety.

Drawings

Fig. 1 is a layout view of a ship lift facility of the present invention.

Fig. 2(1) is a first sub-flowchart of the ship box-passing process according to the present invention;

FIG. 2(2) is a second sub-flowchart of the ship box-passing process of the present invention;

fig. 2(3) is a third sub-flowchart of the ship box-passing flow of the present invention.

Detailed Description

A method for accurately butting ship chambers of a ship lift under the condition of ship chamber water level fluctuation utilizes a navigation wall with a proper length of a lift bow and a lift bow as a temporary berthing area, and a signal lamp is used for controlling a ship to enter the temporary berthing area and the ship chambers. Meanwhile, by reasonably selecting the butt joint position of the ship chamber, the misloading water depth of the ship chamber is reduced, the time for the ship to enter and exit the ship chamber is shortened, and the influence of water level change on the operation of the ship lift is reduced.

Fig. 1 is a layout view of a ship lift facility of the present invention, in which: the upper and lower brake heads are provided with temporary berthing areas, and the mooring columns are arranged on the navigation wall according to a certain distance, so that ships can be temporarily berthed, and the distance between the mooring columns and the working door of the brake heads is a safe distance.

a₁、a₂、a₃、a₄For the upper gate head level measuring well, a₅、a₆、a₇、a₈The water level of the upper brake head and the lower brake head is measured through four water level measuring wells.

b₁Working gate for upper gate head, b₂The gate is worked for the lower gate head.

c₁Being an upstream ship door, c₂Is a downstream cabin door.

d₁For temporary landing zone signal lamp at the head of upper gate, d₂For upstream in-and downstream out-of-compartment signals, d₃For temporary landing zone signal lamp at the lower brake head, d₄The signal lamps are a downstream chamber entering signal and an upstream chamber exiting signal lamp, and the signal lamps control the ship to enter and exit the ship chamber and the temporary berthing area of the lock head.

Fig. 2(1), fig. 2(2), and fig. 2(3) are combined together to form a ship passing flow chart of the ship lift applying the present invention.

A ship lift ship chamber accurate butt joint method under ship chamber water level fluctuation comprises the following steps:

s1: the box entering ship enters a temporary berthing area from a berthing pier, berths at the temporary berthing area and waits for a box entering signal;

s2, after the ship chamber is parked, acquiring the elevation change range S of the head water level of the corresponding lock one hour before the parking moment₁～s₂Corresponding to the average one-hour water level change value delta h of the approach channel, s when the one-hour water level change meets the design condition₂-s₁≤Δh_{Is provided with}And Δ h is less than or equal to Δ h_{Is provided with}Go to S3;

s3, obtaining the ship chamber stop position elevation S, and comparing the corresponding brake head predicted water level h₁～h₂Maximum allowable water depth x of mis-loading with ship chamber_{Lower part}、x_{On the upper part}And the elevation s of the ship compartment at the parking position if h is satisfied₂-x_{On the upper part}≤s≤h₁+x_{Lower part}If the condition is satisfied, directly performing S5, and if the condition is not satisfied, performing S4;

s4, adjusting the position of the ship chamber, stopping the ship chamber after the ship chamber runs for a distance L again, running to the butt joint position again, and performing step 3 until h is met₂-x_{On the upper part}≤s≤h₁+x_{Lower part}Condition, proceed to S5;

s5, butting the ship chamber with the corresponding lock head, opening the ship chamber door and the lock head door, sending a chamber signal, and performing S6;

s6: and (4) untwisting and discharging the ship, finishing the discharging of the ship, closing the ship compartment door and the lock head door, removing the butt joint of the ship compartment, and finishing the process.

Example (b):

taking the process of the ship ascending and passing through the ship lift as an example, the method comprises the following steps:

step 1): after the downstream ship and the upstream ship meet, the ship lift centralized control room turns green from red when entering a signal lamp of the lower lock head temporary berthing area, informs the upstream ship to enter the lower lock head temporary berthing area from a downstream berthing pier through a very high frequency, and waits for a downstream entering signal to enter the cabin;

step 2): ship lift centralized control room obtains lower lock head a₅、a₆、a₇、a₈Measuring water level data of four water level measuring wells, taking the average value of water level meters as the head water level, determining the change range s of the head water level in the previous hour of position checking₁～s₂(ii) a Meanwhile, calculating the average one-hour water level change value delta h ═ k of the lower channel through a hub flow plan₂Δ Q; and judging whether the water level variation range of the downstream approach channel and the average one-hour water level variation value of the downstream channel exceed the design water level variation requirement: s₂-s₁≤Δh_{Is provided with}And Δ h is less than or equal to Δ h_{Is provided with}If the conditions are met, the step 3) is carried out, if the conditions are not met, the operation is carried out after the condition of the water level of the approach channel is met;

step 3): the position of the ship chamber is checked and adjusted, and the ship chamber position is checked through collecting the ship chamber elevation position s in the centralized control room: s₂+Δh·t_{To pair}-x_{On the upper part}≤s≤s₁+Δh·t_{To pair}+x_{Lower part}And if the condition is met, directly performing the step 5), and if the condition is not met, performing the step 4).

Step 4): adjusting the position of the ship chamber, after the ship chamber goes upwards by a distance L, descending again to be in butt joint with the lower lock head, and repeating the step 3) when the requirement s is met₂+Δh·t_{To pair}-x_{On the upper part}≤s≤s₁+Δh·t_{To pair}+x_{Lower part}After that, the air conditioner is started to work,carrying out step 5);

in the embodiment, the judgment of the water level condition of the approach channel and the verification and adjustment of the position of the ship chamber are carried out when the ship enters the temporary berthing area, and if the butt-joint door opening action is completed before the ship enters the temporary berthing area, the ship does not need to berth and directly enters the ship chamber according to the carriage entering signal.

Step 5): the ship chamber is in butt joint with the lower lock head, the ship chamber door and the lower lock head working door are opened, a downstream ship chamber entering signal lamp is turned green from red, the lower lock head working door is closed after the ship chamber entering mooring is finished, the ship chamber door is closed and the butt joint is released after the ship chamber is adjusted in water depth, and the ship chamber ascends to the upper lock head butt joint position;

step 6): ship lift centralized control room obtains upper lock head a₁、a₂、a₃、a₄Measuring water level data of four water level measuring wells, taking the average value of water level meters as the head water level, and determining the head water level variation range s in the previous hour of position checking₁～s₂(ii) a Meanwhile, calculating the average one-hour water level change value delta h ═ k of the upstream channel through a hub flow plan₁(Q_Into-Q_{Go out}) In the formula Q_IntoFor upstream reservoir warehousing traffic, Q_{Go out}For the hub delivery flow, k₁Is a proportionality coefficient; and judging whether the water level variation range of the upstream approach channel and the average one-hour water level variation value of the upstream channel exceed the design water level variation requirement: s₂-s₁≤Δh_{Is provided with}And Δ h is less than or equal to Δ h_{Is provided with}If the conditions are met, the step 7) is carried out, if the conditions are not met, the operation is carried out after the condition of the water level of the approach channel is met;

step 7): the position of the ship chamber is checked and adjusted, and the ship chamber position is checked through collecting the ship chamber elevation position s in the centralized control room: s₂+Δh·t_{To pair}-x_{On the upper part}≤s≤s₁+Δh·t_{To pair}+x_{Lower part}If the condition is met, directly performing the step 9), and if the condition is not met, performing the step 8);

step 8): adjusting the position of the ship chamber, after the ship chamber descends by a distance L, ascending again to be in butt joint with the upper lock head, and repeating the step 7) when the requirement s is met₂+Δh·t_{To pair}-x_{On the upper part}≤s≤s₁+Δh·t_{To pair}+x_{Lower part}Then, step 9) is performed;

step 9): and (3) butting the ship chamber with the upper lock head, opening the ship chamber door and the upper lock head working door, turning the upstream chamber-out signal lamp from red to green, disconnecting the ship cable from the ship chamber, closing the upper lock head working door and the ship chamber door, and ending the process.