Continuous multi-step ship lock operation stage number conversion method

A conversion method and ship lock technology, applied in ship locks, ship lifting devices, special data processing applications, etc., to achieve the effects of enhancing operational adaptability, shortening operation time for level change, and long-term practical significance

Active Publication Date: 2020-10-20
THREE GORNAVIGATION AUTHORITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no scientific, standardized, and standardized method for the conversion of multi-stage ship lock operation. Therefore, it is urgent to refine the operation stage conversion method of continuous multi-stage...

Method used

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  • Continuous multi-step ship lock operation stage number conversion method
  • Continuous multi-step ship lock operation stage number conversion method
  • Continuous multi-step ship lock operation stage number conversion method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] The five-stage permanent ship lock of the Three Gorges is currently the largest large-scale ship lock with the highest designed water head and the largest project scale in the world. Its maximum designed operating head is 113 meters. In order to fully consider and protect the safety and reliability of the Three Gorges ship lock equipment and facilities, the boundary conditions that should be followed during the conversion process of the ship lock operation stages and after conversion: 1) The water level of the downstream lock chamber in the intermediate lock chamber is not higher than that of the upstream lock chamber 2) The water level of each lock chamber shall not be higher than the maximum navigable water level under any circumstances, and the upstream lock chamber shall not be lower than the operating low water level before filling or discharging water to the target water level .

[0117] Before the lock operation level conversion operation, it is first necessary ...

Embodiment 2

[0142] When the water level of the upstream reservoir of the Three Gorges is between 152.4m and 156m, according to the combination of the upstream and downstream water levels, select an appropriate time to convert the operating stages of the Three Gorges ship lock from four to five.

[0143] The operation level conversion of the ship lock should be carried out when the ship lock is not in operation, and the level conversion method is as follows:

[0144] (1) After confirming that the ship lock equipment and facilities are in shutdown state through the ship lock centralized control system, change the operation level in the centralized control system parameter setting from four to five;

[0145] (2) Use the on-site maintenance method to close the first gate valve to the final position;

[0146] (3) Adjust the state of the anti-collision warning device to the initial state of the five-level continuous operation mode;

[0147] (4) By adjusting the given voltage of the proportiona...

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Abstract

The invention relates to a continuous multi-step ship lock operation stage number conversion method, in particular to a method for adaptively realizing ship lock operation stage number conversion of amulti-step ship lock under the condition of water level change. The method comprises: according to the conditions met by normal operation of the multi-stage ship lock and in combination with the operation process of the multi-stage ship lock, establishing a continuous multi-step ship lock stage changing operation model; substituting the detected water level data into the model to calculate the final steady-state water level of each stage of lock chamber after the stage change operation; automatically determining the conversion stage number required by ship lock operation to obtain a continuous multi-step ship lock stage changing operation scheme; using optimal arrangement of a ship lockage process and in combination with a ship lock control system and a synchronous water conveying operation mode, further optimizing the specific implementation scheme of operation stage number conversion of the multi-stage ship lock according to actual requirements, achieving conversion of the operation stage number of the ship lock, standardizing the operation process of ship lock operation management personnel, and improving the efficiency and safety of stage changing operation of the ship lock.

Description

technical field [0001] The invention relates to a method for converting the operating stages of a ship lock, in particular to a method for converting the operating stages of a continuous multi-step ship lock. Background technique [0002] Ship locks are divided into single-stage ship locks and multi-stage ship locks according to the number of longitudinally arranged lock chambers. For single-stage ship locks, only one filling and discharging of water is required to overcome the entire drop of upstream and downstream water levels. The continuous multi-level ship locks connected with the upper and lower lock chambers need to be filled and discharged multiple times to overcome the entire drop of the upstream and downstream water levels. During the daily operation of the multi-stage ship lock, by opening and closing the discharge valves, the lock chambers alternately appear at the high operating water level and the operating low water level. Taking the Three Gorges five-step cas...

Claims

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Application Information

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IPC IPC(8): G06F30/20E02C1/00G06F111/04
CPCG06F30/20E02C1/00G06F2111/04Y02A10/30
Inventor 齐俊麟曾维王海江张勃边级张勇姚明经覃涛孟兵乔小东
Owner THREE GORNAVIGATION AUTHORITY
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