CN201520966U

CN201520966U - Breeches pipe body form arranged below a single-side chamber wall main corridor of high-lift locks

Info

Publication number: CN201520966U
Application number: CN2009202355830U
Authority: CN
Inventors: 胡亚安; 严秀俊; 张志崇; 李中华; 李君�
Original assignee: Nanjing Hydraulic Research Institue Ministryof Water Resources Ministry Of Communications
Current assignee: Nanjing Hydraulic Research Institue Ministryof Water Resources Ministry Of Communications
Priority date: 2009-10-13
Filing date: 2009-10-13
Publication date: 2010-07-07
Anticipated expiration: 2019-10-13

Abstract

The utility model relates to a water delivery corridor body form of a filling-emptying system of locks, in particular to a breeches pipe body form arranged below a single-side chamber wall main corridor of high-lift locks. The body form comprises a main corridor, a breeches pipe side wall, a branch pipe and a diversion pier, wherein the inlet and outlet of a breeches pipe are both rectangular sections; at the inlet (a diversion mouth) of the breeches pipe, the curve of the breeches pipe side wall is tangent to the main corridor and adopts streamline type; the tail end of the diversion pier of the breeches pipe is tangent to the wall of the branch pipe; and the curve of the diversion pier of the breeches pipe adopts elliptic type. The body form causes smooth transition of the water flow in the pipe and the water flow in the pipe to form flow adhering to the wall, which is beneficial to the stability of the breeches pipe and the state of outlet water flow of the breeches pipe, as well as to the diversion of the breeches pipe. After diversion, the water flow does not depart from the pipe wall, the water flow in the pipe is smooth and smaller in turbulence, the phenomenon of bias current in the pipe does not appear and the outlet pressure is distributed uniformly, thus effectively reducing the horizontal and longitudinal distance between the breeches pipe and a valve connecting section and effectively solving the problem of incoming flow at a valve inlet.

Description

The breeches pipe build that high-lift lock unilateral lock wall Main Corridor road cloth deposits

Technical field

The utility model relates to a kind of filling-emptying system of lock water delivery gallery build, the breeches pipe build that a kind of specifically high-lift lock unilateral lock wall Main Corridor road cloth deposits.

Background technology

The filling-emptying system of lock is the important component part of ship lock, and the time of centuries has been experienced in its development, and initial water-carriage system is very simple and crude.Since the fifties in last century, the development of water-carriage system has entered a new stage, has developed the inertia equilibrium filling and emptying system that can adapt to the large-scale ship lock of high water head, and also more becomes ripe in theory what ship lock waterpower was calculated.

For the lock chamber current can be evenly distributed, ship lock generally adopts bilateral lock wall Main Corridor road to arrange, when ship lock topographic and geologic condition is fit to that ship lock one side lock wall adopts the lining cutting formula and opposite side when adopting gravity lock wall, adopt unilateral lock wall Main Corridor road water-carriage system to have remarkable advantages such as simple in structure, construction investment province.Most river valley, river, China central and west regions is narrow, and the inland water transport development of Eastern Plain area rapidly, urgent need is carried out reorganization and expansion to hinge, the restriction that these navigation structure hinges often are subjected to the space landform or have built hinge, water-carriage system arranges that bilateral gallery difficulty is bigger, adopts one-sided gallery to be furnished with remarkable advantages.Based on flexible operation, reliable starting point, one-sided gallery is arranged and also is provided with two valves.One-sided gallery water-carriage system arranges that except that the distinct advantages with self, the while has also brought new problem, i.e. linkage section---the Layout Problem of breeches pipe in two valves and Main Corridor road.Breeches pipe is as the linkage section of unilateral lock wall Main Corridor road and two valves, be shunting, the important structure of confluxing, its build relates to the HYDRODYNAMIC CONDITION RELATING TO and the stability problem of knowledge question of water conservancy such as the assignment of traffic of water-carriage system, the condition of berthing of lock chamber, the inlet flow conditions of valve and breeches pipe itself.

When ship lock sluiced, current entered valve through breeches pipe, and the in-pipe flow fluidised form directly influences the Stability Analysis of Structures of breeches pipe self, and breeches pipe outlet flow condition directly influences the inlet flow conditions of valve, and then influences the anti-cavitation problem of valve.When lock filling, two valves of arm and upstream link to each other, and current enter lock chamber after two valves converge mutually in breeches pipe, and therefore, the fluidised form of confluxing not only directly influences the condition of berthing of lock chamber, and has influence on the layout of lock chamber entery and delivery port energy-dissipating installation; Current recover stable behind valve again needs certain distance, but often is subjected to the restriction of steric requirements in the engineering practice, make that the breeches pipe inlet flow conditions is relatively poor, thereby knowledge question of water conservancy of self and structural stability problem is particularly outstanding.

Therefore, reasonably breeches pipe build and layout are one of key technologies of one-sided Main Corridor road water-carriage system, are the problems that design and scientific research personnel pay special attention to.

Summary of the invention

Technical problem to be solved in the utility model is: at the shortcoming that above prior art exists, proposes a kind ofly can effectively solve the breeches pipe build that the high-lift lock unilateral lock wall Main Corridor road cloth in Main Corridor road and valve section connectivity problem deposits in the one-sided Main Corridor of the high-lift lock road water-carriage system layout.

The technical scheme that the utility model solves above technical problem is:

The breeches pipe build that high-lift lock unilateral lock wall Main Corridor road cloth deposits, comprise Main Corridor road, breeches pipe limit wall, arm and baffle pier, breeches pipe is imported and exported and is rectangular cross section, and breeches pipe import (diffluence pass) is located, breeches pipe limit wall curve and Main Corridor road are tangent, and breeches pipe limit wall curve adopts streamlined; The breeches pipe baffle pier is terminal tangent with Zhi Guanbi, and breeches pipe baffle pier curve adopts ellipse.

The utility model has the advantages that: (1) breeches pipe is imported and exported and is rectangular cross section, and construction technology is simple; (2) breeches pipe import (diffluence pass) is located, and limit wall curve and Main Corridor road are tangent, make the in-pipe flow smooth transition; (3) employing of limit wall curve is streamlined, makes in-pipe flow form sticking wall flow, and is favourable to the stable of breeches pipe and breeches pipe outlet flow-shape thereof; (4) the baffle pier curve adopts ellipse, helps the breeches pipe shunting, and shunting back current do not separate with tube wall; (5) adopt breeches pipe build set forth above, in-pipe flow is smooth-going, and turbulent fluctuation is less, the phenomenon of bias current in the pipe do not occur, and outlet pressure is evenly distributed, and has reduced the horizontal fore-and-aft distance of breeches pipe and valve linkage section effectively, has solved the flow problem that comes of valve inlet.

In the one-sided gallery water-carriage system design of ship lock, the connectivity problem of Main Corridor road and valve section is a difficult problem, and it is directly connected to the safe operation of engineering, this utility model is simple in structure, and difficulty of construction is low, greatly reduces construction investment, improve engineering safety, had good application prospects.

Description of drawings

Fig. 1 is that build of the present utility model is arranged schematic diagram.

Fig. 2 is the Flow Field Distribution figure (bilateral operation) in the breeches pipe of the present utility model.

Fig. 3 is a breeches pipe of the present utility model limit wall pressure power distribution map (bilateral operation).

Fig. 4 is a breeches pipe outlet inside and outside wall pressure-plotting (bilateral operation) of the present utility model.

Fig. 5 is the Flow Field Distribution figure (monolateral operation) in the pipe of the present utility model.

Fig. 6 is a breeches pipe of the present utility model limit wall pressure power distribution map (monolateral operation).

Fig. 7 is a breeches pipe outlet inside and outside wall pressure-plotting (monolateral operation) of the present utility model.

The specific embodiment

Embodiment one

Layout of the present utility model as shown in Figure 1, the breeches pipe build that a kind of high-lift lock unilateral lock wall Main Corridor road cloth deposits, breeches pipe import (diffluence pass) is located, breeches pipe limit wall curve 2 is tangent with Main Corridor road 1, is tangential on point of contact 5, breeches pipe limit wall curve 2 adopts streamlined; Breeches pipe baffle pier 3 is terminal tangent with Zhi Guanbi 4, and breeches pipe baffle pier 3 curves adopt ellipse.

Fig. 2, Fig. 3 and Fig. 4 are the pipe flow field and the tube wall pressure-plottings (bilateral operation) thereof of the utility model reality.Fig. 5, Fig. 6 and Fig. 7 are pipe flow field of the present utility model and tube wall pressure-plotting (bilateral operation) thereof.

Fig. 3, Fig. 4, Fig. 6, Fig. 7 equal pressure during for the poor tube wall of actual measurement, these data are under the normal pressure model, the employing oscillatory pressure pick-up measures, and is finished the collection and the analyzing and processing of unsteady flow signal by the measuring system that dynamic electric resistor strain amplifier and wavebook512 acquisition system are formed.

From Fig. 2-Fig. 7 as seen, no matter be bilateral or monolateral operation, the breeches pipe current are smooth-going, no segregation phenomenon, outlet pressure is evenly distributed, and the in-pipe flow turbulence intensity is less, and the valve inlet inlet flow conditions is more excellent.Solved one-sided gallery water-carriage system arrange in the connection problem of Main Corridor road and valve section.

Difference according to the engineering actual conditions; the utility model can also have other embodiment; as long as breeches pipe limit wall and baffle pier adopt streamlined and ellipse simultaneously, the breeches pipe build of Main Corridor road and valve section connectivity problem was all in the protection domain that the utility model requires during the one-sided gallery water-carriage system of solution high-lift lock was arranged.

Claims

1. the breeches pipe build that deposits of high-lift lock unilateral lock wall Main Corridor road cloth, comprise Main Corridor road, breeches pipe limit wall, arm and baffle pier, it is characterized in that: breeches pipe is imported and exported and is rectangular cross section, breeches pipe import department, described breeches pipe limit wall curve and described Main Corridor road are tangent, and described breeches pipe limit wall curve is streamlined; Described breeches pipe baffle pier is terminal tangent with described Zhi Guanbi, and described breeches pipe baffle pier curve is an ellipse.