CN110777763A

CN110777763A - Automatic ship water lock is crossed to high efficiency of control

Info

Publication number: CN110777763A
Application number: CN201910991929.8A
Authority: CN
Inventors: 郑恺原
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-02-11

Abstract

The invention discloses an automatically-controlled high-efficiency ship-passing water lock, wherein two side walls of the water lock are respectively composed of a linear side wall and an arc side wall which are sequentially connected, the upper stream and the lower stream of the arc side wall are respectively composed of the linear side wall and the arc side wall, the arc side wall protrudes outwards relative to the linear side wall, the distance between the linear side walls on the two sides forms the width of a lock chamber, the distance between the arc side walls on the two sides is larger than the width of the lock chamber, a fixed pile is arranged between the arc side walls on the two sides, a rotary gate is rotatably connected onto the fixed pile, and the rotary gate rotates around the fixed pile in the lock chamber formed by enclosing the arc side walls on. The invention can realize the high-efficiency navigation of the ship, avoids the time and economic loss caused by the blockage and detention of the ship and the like, and is beneficial to the development of the river shipping career.

Description

Automatic ship water lock is crossed to high efficiency of control

Technical Field

The invention belongs to the field of hydraulic and hydroelectric engineering buildings, and particularly relates to an automatically-controlled high-efficiency ship-passing water lock.

Background

Hydraulic engineering buildings often obstruct rivers, a certain water level difference is formed between the upstream and the downstream, and ships need to pass through a ship lock when passing through the hydraulic engineering buildings. The existing ship lock is mostly composed of a lock head, a lock chamber and a navigation channel, and after entering the lock chamber, ships need to wait for water discharge and drainage at two ends of a gate until water levels at two ends are level, and then the gate can be opened. The process consumes a lot of time, especially when the ship is dense, and a lot of ships are detained, so that an automatically controlled ship lock is needed to be designed, the ship passing speed can be increased and the waiting time can be reduced through various ways, and the development of the river shipping industry is promoted.

Disclosure of Invention

The invention aims to provide an automatic control high-efficiency ship passing water lock.

The invention is realized by the following technical scheme:

the utility model provides an automatic ship water lock is crossed to automatic control's high efficiency, the both sides side wall of sluice constitutes by the straight line shape side wall and the arc side wall that connect gradually, the upper and lower reaches of arc side wall are sharp shape side wall, the relative straight line shape side wall of arc side wall is outside protrusion, the both sides are sharp apart from constituting the lock chamber width between the side wall, distance between the both sides arc side wall is greater than the lock chamber width, be provided with the spud pile between the arc side wall of both sides, it is connected with rotatory gate to rotate on the spud pile, rotatory gate encloses the lock chamber internal rotation that closes the formation round the spud pile at both sides arc side wall.

Preferably, an acoustic detector is fixedly arranged on the water gate side wall at a position 0.5m downstream of the rotary gate. And the data of the sound wave detector is transmitted to an external control system outside the device, the data obtained by the sound wave detector is processed and transmitted to a system for controlling the rotation of the rotary gate, so that the opening and closing of the gate, the working efficiency of the water pump and the like are controlled.

The sound wave detector is of an SM-5A type.

Preferably, a water pump is provided inside the rotary floodgate. The water pump is arranged in the gate and plays roles in pumping water at upstream and downstream and balancing water level.

Preferably, the rotary gates are multiple, each rotary gate is rotatably connected with one fixing pile, when each rotary gate is in a closed state, the rotary gates are parallel to each other, and a sound wave detector is fixedly arranged on the water gate side wall at a position 0.5m downstream of each rotary gate. The sound wave detector is positioned at a certain position at the downstream of each gate, and can measure the time difference by transmitting and receiving sound waves, so that the real-time distance between the ship and the gate can be calculated, the advancing speed of the ship can be obtained by measuring for many times, and the approaching time of the ship can be calculated.

Compared with the prior art, the invention has the beneficial effects that:

the invention avoids the time waste caused by waiting for the ship to pass, so that the ship passing is more efficient and the river navigation is more convenient; the invention adopts the steps of automatic water drainage of the water pump, electric water pumping and the like to accelerate the process of water level balance between upstream and downstream, thereby improving the efficiency of water drainage of the gate chamber; the energy loss caused by the lifting of the gate is reduced by the rotary opening and closing design of the gate, the closing of the gate can be assisted by the water level difference between the upstream and the downstream, and the economic cost of the operation of the ship lock is reduced.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 shows the rotary lock gate rotated to be parallel to the ship;

fig. 3 shows the working state of the water pumps on the two rotary gates when the ship passes through the first rotary gate.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

fig. 1 and 2 show a top view of an automatically controlled high-efficiency ship-passing water lock of the present invention, wherein two side walls of the water lock are composed of a linear side wall 11 and an arc side wall 21 which are connected in sequence, the upper and lower streams of the arc side wall are linear side walls, the arc side wall protrudes outwards relative to the linear side wall, the distance between the linear side walls at two sides forms the width of a lock chamber, the distance between the arc side walls at two sides is larger than the width of the lock chamber, a fixing pile 32 is arranged between the arc side walls at two sides, a rotary gate is rotatably connected on the fixing pile, and the rotary gate rotates around the fixing pile in the lock chamber formed by enclosing the arc side walls at two sides.

The rotary lock 31 is rotatable about the spud 32 and is driven by the motor to rotate clockwise at a power such that the vessel 51 can continue to advance through the lock. The technology of the motor driving the rotary gate to rotate is the prior art and is not described in detail herein.

An acoustic wave detector 41 is fixedly arranged on the water gate side wall at a position 0.5m downstream of the rotary gate 31, is of an SM-5A type, and can calculate the distance between the gate and the ship and the advancing speed of the ship by transmitting acoustic waves so as to obtain the approaching time of the ship and automatically control the working efficiency of the water pump. Calculating the real-time distance between the ship and the gate by the formula (1):

l＝vΔt/2#(1)

wherein l is the distance between the ship and the gate, v is the sound wave propagation speed, 340m/s is taken, and delta t is the time interval between the outgoing sound wave and the incoming sound wave. Meanwhile, the travelling speed of the ship can be calculated according to the time difference of the two detection distances, and the calculation is carried out by adopting the formula (2):

V＝Δl/T#(2)

wherein V is the ship advancing speed, delta l is the ship distance difference of two detections, and T is the detection period. Through the real-time distance and the speed of marcing of ship, can accurately calculate the approach time t of ship, adopt formula (3) to set up water pump work efficiency P:

Pt＝Δh·S#(3)

wherein, Δ h is the difference between the water level of the gate and the standard water level, and S is the channel area between the two gates, according to the specific situation. Meanwhile, the opening speed omega of the gate is set by adopting the formula (4):

ωt＝Δθ#(4)

where Δ θ is the angular difference between the gate and the fully open position.

In fig. 1 and 2, for describing the structure of the ship water lock clearly, only one rotary gate is drawn, the number of the ship locks can be arranged according to actual conditions, two rotary gates can be arranged in practical application, as shown in fig. 3, a water pump 33 is arranged in each rotary gate, when a ship passes through the first rotary gate, the water pump on the first rotary gate pumps the water at the upstream of the first rotary gate to the downstream, namely between the first rotary gate and the second rotary gate, and the water pump on the second rotary gate pumps the water at the downstream of the second rotary gate to the upstream of the second rotary gate, namely between the first rotary gate and the second rotary gate, so as to fill up the water level between the first rotary gate and the second rotary gate as soon as possible.

The pump-assisted drainage utilizes the water level difference between the upstream and the downstream of the gate to balance the water level, and adjusts the working efficiency of the water pump 33 according to the formula (3), so that the upstream and the downstream water levels are approximately equal when the ship approaches the rotary gate 31, the gate is opened, and the ship can smoothly pass through the rotary gate 31.

The undescribed parts of the present invention are the same as or implemented using prior art.

Claims

1. The automatically-controlled high-efficiency ship-passing water lock is characterized in that side walls on two sides of the water lock are respectively composed of a linear side wall and an arc-shaped side wall which are sequentially connected, the upper stream and the lower stream of each arc-shaped side wall are respectively linear side walls, the arc-shaped side walls protrude outwards relative to the linear side walls, the distance between the linear side walls on the two sides forms the width of a lock chamber, the distance between the arc-shaped side walls on the two sides is larger than the width of the lock chamber, a fixed pile is arranged between the arc-shaped side walls on the two sides, a rotary gate is rotatably connected onto the fixed pile, and the rotary gate rotates around the fixed pile in the lock chamber formed by enclosing.

2. The automatically controlled water lock for passing ship is characterized in that an acoustic detector is fixedly arranged on the side wall of the water lock at 0.5m downstream of the rotary gate.

3. The automatically controlled high-efficiency ship passing water lock of claim 2, wherein the sound wave detector is of SM-5A type.

4. The automatic control high-efficiency ship passing water lock of claim 1, wherein a water pump is arranged inside the rotary gate.

5. The automatic control high-efficiency ship passing water gate as claimed in claim 4, wherein the rotary gate is provided with a plurality of rotary gates, each rotary gate is rotatably connected with a fixing pile, each rotary gate is parallel to each other when being in a closed state, and a sound wave detector is fixedly arranged on the water gate side wall 0.5m downstream of each rotary gate.