CN212530012U

CN212530012U - Dock gate capable of automatically keeping balance

Info

Publication number: CN212530012U
Application number: CN202021073101.9U
Authority: CN
Inventors: 杜欣; 娄俊勇; 阮庆海; 孙强; 嵇智勇; 彭东升; 郭强; 方芳; 吴楠; 张林涛; 潘帅; 吕岩; 孙凯强; 片成荣
Original assignee: Dalian Shipbuilding Industry Co Ltd
Current assignee: Dalian Shipbuilding Industry Co Ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-02-12
Anticipated expiration: 2030-06-12

Abstract

A dock gate capable of automatically keeping balance is characterized in that a middle water ballast tank is arranged at the bottom end of the dock gate, end water ballast tanks are arranged at two ends of the dock gate, a tide tank is arranged above the end water ballast tank, the middle water ballast tank is provided with four first electric control valves, water outside the tank enters the middle water ballast tank through the electric control valves, a pipeline is connected between the middle water ballast tank and the end water ballast tanks, and the water enters the end water ballast tanks at two ends from the middle water ballast tank through the pipeline; and a second electric control valve is arranged on the pipeline, a liquid level meter is arranged at one end of the end ballast water tank, which is far away from the dock gate central line, and the liquid level meter is connected with the central controller through a cable. According to the invention, after the inclination reaches a certain degree, the corresponding equipment is immediately and automatically controlled to act, the dock gate is adjusted to return to a balanced state, manual operation is not required, manpower is saved, and risks possibly brought by the manual operation can be avoided.

Description

Dock gate capable of automatically keeping balance

Technical Field

The invention relates to the field of ship construction and ship design, in particular to a dock gate capable of automatically keeping balance in the installation and sinking process.

Background

The large-scale ship is built in a dry dock, and when the ship is built in the dry dock, the dock gate serves as a structural object to isolate water outside the dock. After the ship is built, water is filled in the dock, ballast water discharged from the dock gate is dragged away by a tugboat after floating, and the ship can drive to the river and the sea; and then dragging the dock gate back to the station again, opening a valve to enable water to automatically flow into a middle ballast water tank of the dock gate, gradually sinking along with the continuous inflow of the water into the dock gate, discharging the water in the dock after the water is settled in place, and starting new shipbuilding operation. In the sinking process of the dock gate, the length of the dock gate is very long, and the water inlet speeds of the ballast water tanks at the two ends cannot be completely consistent, so that the dock gate inevitably inclines in the length direction. Such inclination is not dangerous to a certain extent, but if the inclination reaches a certain extent, the following problems arise:

the dock gate is difficult to adjust and install in place due to the fact that the dock gate is inclined, and time and equipment resources are wasted.

Due to the fact that the dock gate is inclined, the dock gate can not be tightly attached to the water-stop rubber, water seepage is easily caused in the using process, and normal shipbuilding operation is affected.

And thirdly, the floating state of the dock gate is easily out of control, even the dock gate is in danger of overturning, and the serious property loss and casualties are caused.

At present, a general method for processing inclination generated in the sinking process of a dock gate comprises the following steps: the descending process of the dock gate needs to be monitored by special personnel on the bank, after the dock gate is observed to incline by naked eyes, operators in a dock gate cabin are informed to control a corresponding valve in the modes of an interphone and the like, the flow of ballast water at one heavier end is reduced, and the ballast water amount at two ends is slowly recovered to be equivalent, so that the aim of recovering the balance of the dock gate is fulfilled. This treatment method has the following disadvantages:

the technical scheme includes that special manpower is required to monitor the state of a dock gate and operate equipment such as a valve.

And certain time is needed from finding the inclination of the dock gate to taking measures, and the instantaneity is poor.

In the visual observation, information transmission and manual operation processes of personnel, errors are easy to occur in each link, so that the dock gate is likely to incline more seriously, and the safety and the reliability are poor.

Disclosure of Invention

In order to solve the problems, the invention provides a dock gate capable of automatically keeping balance, aiming at achieving the purpose that the dock gate can automatically keep balance in the installation and sinking process without manual operation, and the technical scheme is as follows:

a dock gate capable of automatically keeping balance is characterized in that a middle water ballast tank is arranged at the bottom end of the dock gate, end water ballast tanks are arranged at two ends of the dock gate, tide tanks are arranged above the end water ballast tanks, the middle water ballast tank is provided with four first electric control valves, water outside the tanks enters the middle water ballast tanks through the electric control valves, pipelines are connected between the middle water ballast tanks and the end water ballast tanks, and water enters the end water ballast tanks from the middle water ballast tanks through the pipelines; and a second electric control valve is arranged on the pipeline, a liquid level meter is arranged at one end of the end ballast water tank, which is far away from the dock gate central line, and the liquid level meter is connected with a central controller through a cable. The first electric control valve controls water outside the dock gate to enter an intermediate pressure water tank, after seawater in the intermediate ballast water tank is full, the water enters end ballast water tanks at two ends of the dock gate through a pipeline, and the second electric control valve controls the pipeline and controls the seawater to enter the end ballast water tank from the intermediate ballast water tank. The level gauge monitors the position of the seawater.

The dock gate capable of automatically keeping balance further comprises a PLC (programmable logic controller), and when the numerical value between the liquid level meters at the two ends of the dock gate exceeds 20cm, the central controller sends an instruction to the second electric control valve at the higher side of the liquid level and closes the second electric control valve at the higher side of the liquid level. And (3) setting that when the reading difference value of the liquid level meters on the two sides is greater than 20cm through PLC programming, the second electric control valve on the side with the higher liquid level is immediately closed, the liquid level difference is slowly reduced, the dock gate is restored to balance again, and when the reading difference returns to within 10cm, the second electric control valve which is closed before is opened again.

The dock gate capable of automatically keeping balance is characterized in that a threading pipe is sleeved outside the cable positioned at the tidal cabin. The threading pipe protects the cable.

In the above automatically balancing dock gate, further, the central controller is disposed at an upper portion of the dock gate body and located on a longitudinal axis of the dock gate. The central controller is fixed on the dock gate main body, specifically arranged on the longitudinal axis of the dock gate and close to the top end of the dock gate.

The dock gate capable of automatically keeping balance is characterized in that the liquid level meter is a floating ball continuous liquid level meter. The liquid level is monitored by the floating ball continuous liquid level meter, the position of the floating ball is changed due to the change of the liquid level, the output current is changed, the output electric signal is transmitted to the central controller through the cable, the central controller is provided with a display screen, and the liquid level reading of the ballast tank at two ends can be read in real time on the display screen.

According to the dock gate capable of automatically keeping balance, furthermore, the four first electric control valves are arranged at equal intervals.

In the dock gate capable of automatically keeping balance, further, the end ballast water tank is arranged at a position higher than the middle ballast water tank. The end ballast water tank and the middle ballast water tank are not on the same horizontal line, and the tidal tank is arranged above the end ballast water tank and is not on the same horizontal line with the end ballast water tank.

According to the dock gate capable of automatically keeping balance, furthermore, end-pressure water-carrying tanks are symmetrically arranged at two ends of the dock gate.

The invention has the beneficial effects that:

the liquid level is monitored by the liquid level meter in real time, and the measurement of the inclination degree of the dock gate is accurate.

And the dock gate is found to incline to a certain degree and act instantly, the reaction is fast, and the instantaneity is good.

Compared with the problems easily caused by manual operation, the device is safer and more reliable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

wherein: 1-a first electric control valve, 2-a pipeline, 3-a second electric control valve, 4-a liquid level meter, 5-a cable, 6-a threading pipe, 7-a central controller, 8-an end ballast water tank, 9-a middle ballast water tank and 10-a tide tank.

Detailed Description

The dock gate capable of automatically keeping balance as shown in fig. 1 comprises a dock gate main body, wherein a middle ballast water tank 9 is arranged at the bottom of a central axis of the dock gate, end ballast water tanks 8 are arranged at two ends of the dock gate, and a tide tank 10 is arranged above the end ballast water tanks. The middle ballast water tank is provided with four first electric control valves 1, a pipeline 2 is connected between the middle ballast water tank and the end ballast water tank, and the pipeline is provided with a second electric control valve 3. And a floating ball type liquid level meter 4 is arranged at one end of the end pressure water carrying cabin, which is far away from the dock gate central line, and is connected with a central controller 7 through a cable 5. The cable is arranged at the tidal compartment and is sleeved with a threading pipe 6.

The central controller is located on the central line of the dock gate body and close to the top end of the dock gate, and the central controller is provided with an electronic screen and a PLC (programmable logic controller) program. When the dock gate sinks or fluctuates, the floating ball type liquid level meter monitors the liquid level, floats through the floating ball, transmits the monitored signal to the central controller, displays the signal on an electronic screen, sets the difference between the numerical values of the liquid levels of the end ballast water tanks at the two ends of the dock gate by programming through a PLC (programmable logic controller), immediately closes the valve 2 at the side with higher liquid level (the side with higher liquid level enters the end ballast water tank, so that the valve leading to the side is closed, the water quantities at the two sides gradually tend to be balanced), at the moment, the liquid level difference is slowly reduced, the dock gate restores to be balanced again, and when the reading difference returns to be within 10cm, the previously closed valve 2 is opened again. If the inclination occurs again, the process is repeated again to adjust the balance.

According to the invention, after the inclination reaches a certain degree, the corresponding equipment is immediately and automatically controlled to act, the dock gate is adjusted to return to a balanced state, manual operation is not required, manpower is saved, and risks possibly brought by the manual operation can be avoided.

Claims

1. The utility model provides a can automatic balanced dock gate, dock gate bottom is provided with middle ballast water tank (9), dock gate both ends are provided with end ballast water tank (8), end ballast water tank top is provided with morning and evening tides cabin (10), its characterized in that: the middle ballast water tank is provided with four first electric control valves (1), water outside the tank enters the middle ballast water tank through the electric control valves, a pipeline (2) is connected between the middle ballast water tank and the end ballast water tanks, and the water enters the end ballast water tanks at two ends from the middle ballast water tank through the pipeline; the pipeline is provided with a second electric control valve (3), one end of the end ballast water tank, which is far away from the dock gate central line, is provided with a liquid level meter (4), and the liquid level meter is connected with a central controller (7) through a cable (5).

2. The gate of claim 1, wherein the gate is capable of automatically maintaining a balance between: and the central controller is provided with a PLC (programmable logic controller) program, and when the numerical value between the level meters at the two ends of the dock gate exceeds 20cm, the central controller sends an instruction to the second electric control valve at the higher side of the liquid level and closes the second electric control valve at the higher side of the liquid level.

3. The gate of claim 1, wherein the gate is capable of automatically maintaining a balance between: the cable positioned at the tidal compartment is sleeved with a threading pipe (6).

4. The gate of claim 1, wherein the gate is capable of automatically maintaining a balance between: the central controller is arranged at the upper part of the dock gate main body and is positioned on the longitudinal axis of the dock gate.

5. The gate of claim 1, wherein the gate is capable of automatically maintaining a balance between: the liquid level meter is a floating ball continuous liquid level meter.

6. The gate of claim 1, wherein the gate is capable of automatically maintaining a balance between: the four first electric control valves are arranged at equal intervals.

7. The gate of claim 1, wherein the gate is capable of automatically maintaining a balance between: the end ballast water tank is arranged at a position higher than the middle ballast water tank.

8. The gate of claim 1, wherein the gate is capable of automatically maintaining a balance between: and end ballast water tanks are symmetrically arranged at two ends of the dock gate.