阅读说明：本技术 一种适于洄游性鱼类通过的游道 (Swimming channel suitable for migratory fishes to pass through ) 是由 董志勇 余俊鹏 于 2019-09-16 设计创作，主要内容包括：一种适于洄游性鱼类通过的游道,包括洄游通道和分别设置在洄游通道两端的进水管和出流坝,其中进水管设置在洄游通道上游,出流坝设置在洄游通道的下游端；所述洄游通道内被多块低于水道上沿的挡水插板分隔成沿水流方向顺次排列的试验区域,且挡水插板挡水插板上的顶部设有下沉的矩形凹槽,使得挡水插板的顶边形成凹口堰；挡水插板其中一侧边向内侧凹陷形成一缺口,使得挡水插板内陷侧边与水道槽壁之间留有竖缝,其中竖缝的底端延伸至水道底板处,上端延伸至挡水插板上沿处,并且所述的竖缝具有两种排列方式：同侧或异侧。本发明有益效果是：结构简单、易于制作、经济实用、水力特性优,可以产生鱼类洄游所需紊动区和旋涡区。(A migration channel suitable for migratory fishes to pass through comprises a migration channel, and a water inlet pipe and an outflow dam which are respectively arranged at two ends of the migration channel, wherein the water inlet pipe is arranged at the upstream of the migration channel, and the outflow dam is arranged at the downstream end of the migration channel; the migration channel is divided into test areas which are sequentially arranged along the water flow direction by a plurality of water-retaining inserting plates lower than the upper edge of the water channel, and sunken rectangular grooves are formed in the top parts of the water-retaining inserting plates, so that notch weirs are formed on the top edges of the water-retaining inserting plates; one of them side of manger plate picture peg is sunken to the inboard and is formed a breach for leave the perps between the side of the manger plate picture peg invagination and the water course cell wall, wherein the bottom of perps extends to water course bottom plate department, and the upper end extends to the department of following on the manger plate picture peg, and the perps have two kinds of arrangement: the same side or different sides. The invention has the beneficial effects that: simple structure, easy manufacture, economy and practicality, excellent hydraulic characteristics, and can generate turbulent fluctuation areas and vortex areas required by fish migration.)

1. A swimming lane adapted for migratory fish to pass through, comprising: the system comprises a migration channel, and a water inlet pipe and an outflow dam which are respectively arranged at two ends of the migration channel, wherein the water inlet pipe is arranged at the upstream of the migration channel, and the outflow dam is arranged at the downstream end of the migration channel; the migration channel is divided into test areas which are sequentially arranged along the water flow direction by a plurality of water-retaining inserting plates lower than the upper edge of the water channel, and sunken rectangular grooves are formed in the top parts of the water-retaining inserting plates, so that notch weirs are formed on the top edges of the water-retaining inserting plates; one of them side of manger plate picture peg is sunken to the inboard and is formed a breach for leave the perps between the side of the manger plate picture peg invagination and the water course cell wall, wherein the bottom of perps extends to water course bottom plate department, and the upper end extends to the department of following on the manger plate picture peg, and the perps have two kinds of arrangement: the same side refers to the orthographic projection of the vertical seams on a plane parallel to the water-retaining insertion plates is superposed, and the different side refers to the orthographic projection of the vertical seams of the two adjacent water-retaining insertion plates on the plane parallel to the water-retaining insertion plates is symmetrical about the vertical central axis of the water-retaining insertion plates.

2. A raceway suitable for the passage of migratory fish according to claim 1, wherein: the central axis of the rectangular groove is coincided with the vertical central axis of the water-retaining inserting plate.

3. A swimming lane for migratory fish according to claim 2, wherein: the water blocking inserting plate is vertically arranged on the inner side wall of the water channel and is kept vertical to the water channel bottom plate.

4. A raceway suitable for the passage of migratory fish according to claim 1, wherein: the water channel bottom plate clamped between the most upstream water retaining insertion plate and the most downstream water retaining insertion plate is a stepped bottom plate, the step height of the stepped bottom plate is gradually reduced along the water flow direction, and a water retaining insertion plate is correspondingly assembled at the joint of two adjacent steps.

Technical Field

The invention relates to a swimming channel suitable for migratory fishes to pass through.

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 the oceans, and after sexual maturity is reached, the fishes go upstream to inland rivers or auxiliary lakes to lay eggs and breed (such as Chinese sturgeons, reeves shads, hairtails, salmon and the like) in a group in the annual breeding season; another type is fish that normally live in fresh water, and when sexually mature, descend into the ocean to lay eggs and breed (mainly eels). The former is called migratory fish and the latter is called migratory fish. In addition, there are also semi-migratory fishes (herring, grass carp, chub, bighead carp, etc.) that migrate between rivers and lakes or between dry and tributary streams for the purpose of spawning, baiting, overwintering, etc. In order to communicate a migration channel of fishes and maintain the diversity of organisms, a fishway is usually arranged in a hydraulic hub such as a tidal barrage, a drainage gate, a flood diversion gate and a dam so as to achieve the harmonious development of hydraulic engineering and ecological environment. The fishway is a low-water-head hydraulic building, and can enable fishes to overcome obstacles to realize spawning migration, bait migration, overwintering migration and the like. The fish passing effect of the fishway is not only related to the hydraulic characteristics of the fishway pool chamber, but also depends on the swimming habit of the fishes, and the fishes cannot be simply provided with a channel, so that the fishes can go up along the fishway in a gentle and smooth way. At present, the fish passing holes of the fishway are mostly in the shapes of rectangles, vertical seams and the like, but the statistical data shows that in the fishway which is built globally, the fishway through which fishes can pass by following the tour is less than half. The same fishway needs to be able to migrate through different types of fish, so it is also important to consider designing a combined fishway.

Disclosure of Invention

In order to solve the above problems, the present invention provides a swimming passage suitable for migratory fishes to pass through, which is designed according to the fish-tracing habit.

The invention relates to a swimming channel suitable for migratory fishes to pass through, which is characterized in that: the system comprises a migration channel, and a water inlet pipe and an outflow dam which are respectively arranged at two ends of the migration channel, wherein the water inlet pipe is arranged at the upstream of the migration channel, and the outflow dam is arranged at the downstream end of the migration channel; the migration channel is divided into test areas which are sequentially arranged along the water flow direction by a plurality of water-retaining inserting plates lower than the upper edge of the water channel, and sunken rectangular grooves are formed in the top parts of the water-retaining inserting plates, so that notch weirs are formed on the top edges of the water-retaining inserting plates; one of them side of manger plate picture peg is sunken to the inboard and is formed a breach for leave the perps that are used for crossing the fish between manger plate invagination side and the water course cell wall, wherein the bottom of perps extends to water course bottom plate department, and the upper end extends to the upper edge department of manger plate picture peg, and the perps have two kinds of arrangement: the same side refers to the orthographic projection of the vertical seams on a plane parallel to the water-retaining insertion plates is superposed, and the different side refers to the orthographic projection of the vertical seams of the two adjacent water-retaining insertion plates on the plane parallel to the water-retaining insertion plates is symmetrical about the vertical central axis of the water-retaining insertion plates.

The central axis of the rectangular groove is coincided with the vertical central axis of the water-retaining inserting plate.

The water blocking inserting plate is vertically arranged on the inner side wall of the water channel and is kept vertical to the water channel bottom plate.

The water channel bottom plate clamped between the most upstream water retaining insertion plate and the most downstream water retaining insertion plate is a stepped bottom plate, the step height of the stepped bottom plate is gradually reduced along the water flow direction, and a water retaining insertion plate is correspondingly assembled at the joint of two adjacent steps.

The conception of the invention is as follows: different fishes have different habits of tracing to the journey, and notch weir fish passing hole mainly is applicable to the fish of liking the jump, and the perps fish passing hole is favorable to different fishes to select different water layers to trace to the journey. Based on the same fishway, the requirement of tracing the migration through different fishes is met, the ecological hydraulic characteristic of the fishes during migration is fully considered, the notch weir and vertical seam combined fishway is designed, the hydraulic characteristic of the notch weir and the vertical seam can be well exerted, the fishway is suitable for various fishes to migrate to lay eggs or perform cable bait fattening in rivers and lakes through the fishway, the diversity of upstream water system organisms is maintained, and the harmonious development of water resource development and ecological environment is promoted.

The invention has the beneficial effects that: the water flow passing through the vertical seam forms two-dimensional wall jet flow; the water flow passing through the notch weir forms a three-dimensional weir flow; the structure is simple, the manufacture is easy, the maintenance is convenient, the economy and the practicability are realized, the hydraulic characteristic is excellent, and a turbulent fluctuation area and a vortex area required by the fish migration can be generated.

Drawings

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

Fig. 2 is a structural view of the water blocking insert plate of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a sectional view taken along line a-a of fig. 3.

Detailed Description

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

With reference to the accompanying drawings: