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Ship lock concentration and dispersion delivery system without calm section

A technology for decentralized water delivery and calming sections, applied in ship locks, ship lifting devices, buildings, etc., can solve the problems of large construction engineering volume and construction difficulty, inability to meet the energy dissipation requirements of ship locks, and large excavation depth of energy dissipation chambers at the head of locks, etc. problems, achieve the effect of shortening the water delivery time, increasing the initial opening speed, and facilitating construction and maintenance

Active Publication Date: 2009-09-09
NANJING HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, practice has proved that the existing water delivery system with the structural characteristics of the water outlet corridor across the width of the ship lock shows the water flow characteristics of the centralized water delivery system, and there are still major problems unique to the centralized water delivery system: 1) The energy dissipation chamber is only arranged in a limited range close to the lock head, which cannot meet the energy dissipation requirements of a ship lock with a long lock chamber length; 2) There is still a strong local water flow force near the lock head; 3) The lock head dissipates The excavation depth of the energy room is relatively large, not only the construction quantity and construction difficulty are relatively large, but also it is not suitable for projects without curtain walls or with short curtain walls

Method used

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  • Ship lock concentration and dispersion delivery system without calm section
  • Ship lock concentration and dispersion delivery system without calm section
  • Ship lock concentration and dispersion delivery system without calm section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The effective size of the ship lock in this embodiment is 180m×23m×3.5m (length×width×threshold water depth), the designed maximum water head is 9.98m, the designed water delivery time is 8-10min, and the navigable 1000t-class double row single row one top two barge fleet. There is no curtain wall at the head of the ship lock to construct an energy dissipation room, and the water delivery system adopts a centralized and decentralized water delivery system without calming sections.

[0020] Such as Figure 1 to Figure 3 As shown, the centralized and decentralized water delivery system without sedation section includes a lock chamber 2 composed of an upstream gate 1 and a downstream gate (not shown in the figure). Upstream of the upstream gate 1 is provided a water inlet 3 across the lock. Both ends of the water inlet 3 respectively extend into the gate wall 9 at the lock chamber 2 through the water delivery corridor 5 controlled by the water delivery valve 4 . The slui...

Embodiment 2

[0024] The basic structure of the centralized and dispersed water delivery system without sedation section in this embodiment is similar to that of Embodiment 1 (see Figure 4 to Figure 6 ), the difference is that there are four longitudinally extending bottom water outlet energy dissipation sections in the lock chamber 2—the two sides are energy dissipation corridors 6', and the two in the middle are energy dissipation open ditches 6. The top plate of the energy dissipation corridor 6' is provided with top support holes 11 distributed at intervals. The water delivery corridors in the gate wall 9 communicate with the adjacent energy dissipation corridors 6' through the side branch holes 8 distributed at intervals on the gate wall 9 respectively. A retaining sill is provided between adjacent energy-dissipating open ditches 6, and the top of the retaining sill forms a T-shaped retaining wall; the energy-dissipating corridor 6' and the adjacent energy-dissipating open ditch 6 are...

Embodiment 3

[0027] The effective scale of the ship lock in this embodiment is 180m×23m×3.5m (length×width×water depth above the sill), the design maximum water head is 11.34m, the design water delivery time is 8-10min, and the control ship type is 2×1000t segmented barge Push fleet. The ship lock has a high water head, high hydraulic index, and a large navigable fleet. If the decentralized water delivery system is used, the engineering volume will be large, which will greatly increase the project investment; while the centralized water delivery system is more difficult, the layout should be Considering measures to reduce the initial wave force, a centralized and decentralized water delivery system without calming sections is adopted.

[0028] Depend on Figure 7 to Figure 9 It can be seen that the obvious difference from Embodiment 1 is that the two ends of the water inlet 3 respectively extend to the two longitudinally extending energy dissipation corridors 6' in the middle of the lock ...

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Abstract

The invention relates to a ship lock concentration and dispersion delivery system without a calm section, belonging to the technical field of ship lock water-carriage system hydraulics. The ship lock concentration and dispersion delivery system comprises a lock chamber formed by an upper course strobe and a lower course strobe, wherein the upper course of the upper course strobe is provided with a water inlet which spans a ship lock, and both ends of the water inlet respectively extend into the lock chamber through water-carriage passages controlled by a water-carriage valve; the lock chamber is provided with at least two bottom water-outflow energy dissipation sections which extend longitudinally, and the water-carriage passages inside the lock chamber are respectively communicated with the adjacent bottom water-outflow energy dissipation sections through lateral branching holes which are distributed at intervals. The invention has the obvious advantages of sufficient current energy dissipation, engineering investment saving, increased starting speed of a valve, shortened water-carriage time, increased lockage number, small construction quantities, convenient construction maintenance, and the like.

Description

technical field [0001] The invention relates to a centralized and decentralized water delivery system for a ship lock, in particular to a centralized and decentralized water delivery system for a ship lock without a calming section, and belongs to the technical field of hydraulics of navigable structures and hydraulics of a ship lock water delivery system. Background technique [0002] The ship lock is a navigable structure widely used in inland waterway transportation, and the water delivery system is all the facilities used to complete the water filling and discharging process of the lock chamber, and is an important part of the ship lock. The ship lock water delivery system can be divided into two types of water delivery: centralized water delivery and decentralized water delivery. The filling and discharging systems of the centralized water delivery system are only arranged in the range of the upper and lower lock heads of the ship lock respectively. Its advantages are r...

Claims

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Application Information

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IPC IPC(8): E02C1/00E02C1/08
Inventor 宣国祥刘本芹宗慕伟
Owner NANJING HYDRAULIC RES INST
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