阅读说明：本技术 一种射流组合式水渠道 (Jet flow combined water channel ) 是由 董志勇 严泽阳 于 2019-09-16 设计创作，主要内容包括：一种射流组合式水渠道,包括用于通水的流道、设置在流道上游端的进流口和设置在流道下游端的出流口,进流口处的管路上配装控制阀,出流口设有出流堰；流道相对的槽壁内侧沿水流方向设有若干条竖直轨道,保持竖直轨道与流道内的水流方向垂直；流道的水道沿水流方向顺次划分为上游、中游和下游,中游的竖直轨道处安装挡水墙,使中游的水道经挡水墙分隔成多个试验区域,挡水墙根据其上的矩形孔分布位置不同分为中孔挡水墙和底孔挡水墙两类,中孔挡水墙的矩形孔位于中孔挡水墙中央,底孔挡水墙的矩形孔位于底部,中孔挡水墙与底孔挡水墙择一或交替安装于槽壁的轨道上。本发明的有益效果是：适用于双向潮流,形成中、下层鱼类洄游所需要的流场。(A jet flow combined water channel comprises a flow channel for water, a flow inlet arranged at the upstream end of the flow channel and a flow outlet arranged at the downstream end of the flow channel, wherein a control valve is arranged on a pipeline at the flow inlet in a matched mode, and the flow outlet is provided with a flow outlet weir; a plurality of vertical rails are arranged on the inner sides of the groove walls opposite to the flow channel along the water flow direction, and the vertical rails are kept perpendicular to the water flow direction in the flow channel; the water channel of the runner is divided into an upstream, a midstream and a downstream in sequence along the water flow direction, a water retaining wall is installed at the vertical track of the midstream, the water channel of the midstream is divided into a plurality of test areas through the water retaining wall, the water retaining wall is divided into a middle-hole water retaining wall and a bottom-hole water retaining wall according to different rectangular hole distribution positions on the water retaining wall, a rectangular hole of the middle-hole water retaining wall is positioned in the center of the middle-hole water retaining wall, a rectangular hole of the bottom-hole water retaining wall is positioned at the bottom, and the middle-hole water retaining wall and the bottom-hole. The invention has the beneficial effects that: the device is suitable for bidirectional tide and forms a flow field required by migration of fishes at the middle and lower layers.)

1. A jet flow combined water channel is characterized in that: the device comprises a flow passage for water, a flow inlet arranged at the upstream end of the flow passage and a flow outlet arranged at the downstream end of the flow passage, wherein a control valve is assembled on a pipeline at the flow inlet, and the flow outlet is provided with a flow outlet weir; a plurality of vertical rails are arranged on the inner sides of the groove walls opposite to the flow channel along the water flow direction, and the vertical rails are kept perpendicular to the water flow direction in the flow channel; the water channel of the runner is divided into an upstream, a midstream and a downstream in sequence along the water flow direction, a water retaining wall is installed at the vertical track of the midstream, so that the water channel of the midstream is divided into a plurality of test areas through the water retaining wall, the water retaining wall is divided into a middle-hole water retaining wall and a bottom-hole water retaining wall according to different rectangular hole distribution positions on the water retaining wall, a rectangular hole of the middle-hole water retaining wall is located in the center of the middle-hole water retaining wall, a rectangular hole of the bottom-hole water retaining wall is located at the bottom of the bottom-hole water retaining wall, and the middle-hole water retaining wall and the bottom.

2. A jet-combined water channel as claimed in claim 1, wherein: the water channel bottom plate clamped between the upstream-most water retaining wall and the downstream-most water retaining wall is a stepped bottom plate, the height of the steps of the stepped bottom plate is gradually reduced along the water flow direction, and the joint of two adjacent steps is correspondingly provided with one water retaining wall.

3. A jet-combined water channel as claimed in claim 2, wherein: the water retaining wall is vertical to the water channel bottom plate.

4. A jet-combined water channel as claimed in claim 3, wherein: the long edge of the rectangular hole is vertical to the water channel bottom plate corresponding to the test area, and the long edge h and the width d of the rectangular hole meet the formula (1):

h/d≥1.5 (1)。

Technical Field

The invention relates to a jet flow combined water channel.

Background

The resources of fishes along the seas and rivers in China are rich, and migratory fishes are numerous, one class of fishes is fishes which usually live in oceans, and after sexual maturity is reached, the fishes breed by spawning in inland rivers or auxiliary lakes thereof in a group in the annual breeding season; another type is fish, which usually live in fresh water, and when sexually mature, descend into the sea to lay eggs and breed. The former is called migratory fish and the latter is called migratory fish. In addition, there are also semi-migratory fishes that migrate between rivers and lakes or between main and tributaries for the purposes of spawning, baiting, overwintering, and the like. In order to communicate the migration passage of fish and maintain the diversity of organisms, a fish passage is usually installed in the sluice. The fish passing effect of the fishway is not only related to the hydraulic characteristics of the fishway chamber, but also depends on the fish's swimming habits. Research data already shows that in fishways established around the world, the fishways through which fishes can swim back are less than half. Therefore, the design of the fishway based on the fish swimming habit has important practical significance.

Disclosure of Invention

In order to solve the problems, the invention provides a jet flow combined fishway water channel which is suitable for fish swimming habits and is suitable for reciprocating flow.

The invention relates to a jet flow combined water channel, which is characterized in that: the device comprises a flow passage for water, a flow inlet arranged at the upstream end of the flow passage and a flow outlet arranged at the downstream end of the flow passage, wherein a control valve is assembled on a pipeline at the flow inlet, and the flow outlet is provided with a flow outlet weir; a plurality of vertical rails are arranged on the inner sides of the opposite groove walls of the fishway along the water flow direction, and the vertical rails are kept perpendicular to the water flow direction in the fishway; the water course of fishway divides into upper reaches, midstream and low reaches in order along the rivers direction, the vertical track department installation breakwater of midstream for the water course of midstream separates into a plurality of experimental regions through the breakwater, and the breakwater is divided into mesopore breakwater and bottom outlet breakwater two types according to the rectangular hole distribution position difference on it, and the rectangular hole of mesopore breakwater is located mesopore breakwater central authorities, and the rectangular hole of bottom outlet breakwater is located bottom outlet breakwater bottom, and mesopore breakwater and bottom outlet breakwater alternative or install on the track of cell wall in turn.

The water channel bottom plate clamped between the upstream-most water retaining wall and the downstream-most water retaining wall is a stepped bottom plate, the height of the steps of the stepped bottom plate is gradually reduced along the water flow direction, and the joint of two adjacent steps is correspondingly provided with one water retaining wall.

The water retaining wall is vertical to the water channel bottom plate.

The long edge of the rectangular hole is vertical to the water channel bottom plate corresponding to the test area, and the long edge h and the width d of the rectangular hole meet the formula (1):

h/d≥1.5 (1)。

the conception of the invention is as follows: fishway water flows pass through the rectangular holes, the flow state of the hole opening is submerged outflow, and the adaptability to upstream and downstream water level changes is good. The method is characterized in that the upstream habit of fishes is fully considered, two fishways of a central hole type and a bottom hole type are designed, the central hole type forms three-dimensional jet flow in a fishway pool, and the bottom hole type is three-dimensional wall jet flow. The mainstream district of orifice formula fishway is obvious, easily fish perceive, does benefit to and traces to upward. The design of the orifice type fishway is suitable for fishes loving the upstream of the middle and lower layers, protects the normal migration of the fishes, and promotes the harmonious development of hydraulic engineering and ecological environment.

The invention has the beneficial effects that: simple structure, the preparation is convenient, economical and practical, and be applicable to the reciprocating flow, rivers through the rectangle bottom outlet are three-dimensional wall efflux, and rivers through the mesopore are three-dimensional efflux, and the rivers in the water course had both had three-dimensional wall efflux promptly, had three-dimensional efflux again, formed the required flow field of middle and lower floor's fish.

Drawings

FIG. 1 is a block diagram of the present invention.

FIG. 2 is a view of the bottom hole vertical partition of the present invention.

FIG. 3 is a diagram of the construction of the vertical spacer of the invention.

Fig. 4 is a structure view of a rectangular fish passing hole of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

With reference to the accompanying drawings: