CN201334653Y - Floating flexible diversion device - Google Patents

Abstract

A floating flexible diversion device, which includes a float, a diversion curtain, and a base, the upper edge of the diversion curtain is connected with a float, and the lower edge of the diversion curtain is fixed to the base; the float can float on For a hollow sealing body in water, the number and spacing of the floats are determined according to the fact that the upward buoyancy force generated by the floats completely submerged in the water is greater than the total weight of the floats and the diversion curtain; the floats are arranged continuously or equal to the direction of diversion Arranged at intervals; the floats are arranged at equal intervals at a distance of 1 to 4m; the diversion curtain is selected to have a tensile strength greater than the resultant force of the water flow and the supporting force of the tidal wave, and is composed of porous or grid or closed film The flexible curtain structure; it has low cost, simple process, is conducive to the protection of the ecological environment, does not affect the safety of flood flow, can change the entire flow field through the mechanism of diversion, and realizes water beaming and sand attack, beach protection and silting, and river channel (Wayway) regulation and other effects, and has the characteristics of good stability and adaptability.

Description

Floating flexible diversion device

technical field

The utility model relates to a diversion device in the field of water conservancy and water transportation industry, in particular to a floating flexible device for changing the flow state of local water flow in river courses and sea areas so as to realize sand attack by beaming water, beach protection and silting promotion, and river course (waterway) regulation. deflector.

Background technique

In the water conservancy and water transportation industries, engineering measures are often used to change the water flow (tide) and the trajectory of sediment movement, so as to realize the functions of promoting siltation on the beach and regulating rivers (waterways). Yet at present these engineering measures are mostly built with rigid materials, such as stones, sandbags, concrete, steel structures, etc. The typical cross-sectional structure is shown in Figure 3, and the label 4 shown in the figure is the rigid material; this engineering measure not only The cost is high, the section occupies a large area of water, and a little carelessness will cause great damage to the surrounding ecological environment, making it difficult to remedy. Therefore, the engineering circles have been exploring more convenient, lightweight, and low-cost diversion devices.

After searching the existing technical literature, it is found that the Chinese invention patent publication number CN 1687530A, the publication date is October 26, 2005, the invention patent application number 200510026599.7, and the invention name is: riverbed and seabed sediment retention, sedimentation promotion and anti-scouring The device of the patent is a device that decelerates sand and intercepts it on the spot to realize beach sedimentation and prevent erosion. It includes a floating curtain, a floating body, a sand window, and an anchoring member. The sand window is arranged at the bottom of the floating curtain, and the anchoring member is arranged at the lower edge of the floating curtain. When in use, through the joint action of the floating curtain and the sand-passing window, a horizontal vortex is formed on the back water surface of the floating curtain, so that the bottom sand from the upstream is intercepted after passing through the sand-passing window, so as to achieve the purpose of sediment retention, deposition promotion and anti-scouring Purpose. Its disadvantages are: 1) due to the sand-passing window at the bottom, in strong tidal dynamic estuaries, sea areas and sea areas with low sediment content, sediment is not easy to deposit in the vortex on the back surface of the sand-passing window, realizing 2) Since the floating curtain is integrally connected to the floating body and the anchoring member, the sand passage window is set under the floating curtain, which causes the local tensile strength of the floating curtain to decrease sharply, and the floating body Under the action of tidal surge, the upward pulling force is generated, which is very easy to cause tearing and damage at the sand passing window; 3) The silting effect produced by the device is only in a small range on the back water surface of the floating curtain, and it is based on a local sand The existence of ridges cannot fundamentally solve the purpose of anti-scouring.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned shortcomings in the prior art, and provide a floating flexible diversion device, which is based on the mechanism of changing the movement track of a large-scale water flow (tide), and then realizes the change of the flow of rivers, oceans, etc. The state of the flow field realizes functions such as water beam attacking sand, beach protection and sedimentation promotion, and river (waterway) regulation.

The technical scheme adopted by the utility model is: it includes a float, a diversion curtain and a base, the upper edge of the diversion curtain is connected with a float, and the lower edge of the diversion curtain is fixed on the base.

The float is a hollow sealing body that can float in water, and the number and spacing of the float are determined according to the fact that the upward buoyancy force generated by the float completely submerged in the water is greater than the total weight of the float and the diversion screen; the float Arranged continuously or at equal intervals according to the flow direction.

Said floats are arranged at equal intervals at intervals of 1-4m.

The diversion curtain is selected from a flexible curtain structure whose tensile strength is greater than the resultant force of the water flow and the upward force of the tidal wave, and which is composed of holes, grids or closed membranes.

The bottom connection base of the diversion curtain is a bar-shaped heavy beam or a pile or an embedded structure.

The diversion curtain and the float are connected by binding, or winding, welding, or adhesive connection, and the diversion curtain and the base are fixed by cast-in-place embedding, throw embedding, welding, or adhesive bonding.

The beneficial effects of the utility model are: 1) the cost is low, the process is simple, and it is beneficial to the protection of the ecological environment; 2) the safety of flood discharge is not affected; 3) the entire flow field is changed through the mechanism of diversion, so as to achieve the purpose of beaming water to attack sand, 4) The structure has good flexibility and strong ability to adapt to deformation; 5) It is suitable for estuary coastal areas with strong tidal and wave dynamics, Its own structural stability is superior.

Description of drawings

Fig. 1 is a structural schematic diagram of the longitudinal section of the floating flexible diversion device of the present invention.

Fig. 2 is a schematic diagram of the cross-sectional structure of the floating flexible diversion device described in the present invention.

Fig. 3 is a cross-sectional structure diagram of a rigid flow guiding device in the prior art.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings: as shown in accompanying drawings 1 and 2, the floating flexible flow guiding device described in the utility model includes a float 1, a flow guiding curtain 2, and a base 3, and is characterized in that: The upper edge of the diversion curtain 2 is connected to the float 1 , and the lower edge of the diversion curtain 2 is fixed to the base 3 . The float 1 is a hollow sealing body, the diversion curtain 2 is a grid structure, and the base 3 is a bar-shaped heavy beam. The float 1 and the diversion curtain 2 are connected by welding, and the diversion curtain 2 and the base 3 are fixed by cast-in-place embedding.

The buoy 1 can be a floating facility with buoyancy greater than its own weight in water; the material can be selected from wood, metal, polymer materials, etc.; the shape of the buoy can be polygonal, circular or curved; the number and spacing of the buoys can be adjusted. According to the weight of the flexible material, the upward buoyancy force generated by the set float completely submerged in the water must be greater than the total weight of the float and the diversion curtain 2. The floats 1 are arranged at equal intervals, and the distance is generally controlled at 1m to 4m.

The diversion curtain 2 is a flexible material, which adopts mesh or cloth water-blocking facilities with a certain tensile strength and flexibility, and its tensile strength should be greater than the resultant force value of the water flow and tidal wave support force; the material can be Choose materials such as metal mesh, polymer geotextile, geomembrane or geogrid, and add anti-corrosion and anti-aging admixtures depending on the water environment; flexible materials can be porous, mesh or closed membrane structure.

The base 3 is a facility for fixing the floating flexible diversion device, which needs to have enough stable weight in the water, and has certain anti-shock and anti-wave properties according to the natural conditions during use; the material can be selected from concrete, metal, stones, filled Mud (sand) bags, etc.; the shape can be strip, pile or embedded structure.

During use, on the one hand, the whole device utilizes the base 3 fixed on the bottom surface of the river bed (sea bed) so that the device can withstand the impact of waves and currents without moving; The pulling force enables the diversion curtain 2 to be stretched perpendicular to the direction of the water flow, forcing a part of the water body to continue to move forward through the pores of the diversion curtain 2 after encountering the diversion curtain 2, while the other part of the water flow is deflected. The curtain 2 forms a vortex on the side facing the water flow, thereby changing the state of the flow field in the region, producing a large-scale diversion effect, and finally realizing functions such as water beaming to attack sand, beach protection and siltation, and river (waterway) regulation.

At the same time, the unique flexibility of the diversion curtain 2 enables the floating flexible diversion device to adapt to the influence of fluctuations in water level (tidal level) and waves, ensuring that it has good structural adaptability.

Claims (6)

1, a kind of floating flexible fluid-directing device, it includes float (1), water conservancy diversion curtain (2), base (3), it is characterized in that described water conservancy diversion curtain (2) upper limb is connected with float (1), and water conservancy diversion curtain (2) lower edge is fixed in base (3).

2, floating flexible fluid-directing device according to claim 1, it is characterized in that described float (1) is the hollow seal body of floatability in water, the quantity that this float (1) is arranged and spacing are determined greater than the gross weight of float (1) and water conservancy diversion curtain (2) according to the upwards uplift pressure that float (1) is submerged in the water to be produced fully; Described float (1) is arranged continuously or is equidistantly arranged according to the water conservancy diversion direction.

3, floating flexible fluid-directing device according to claim 2 is characterized in that described float (1) is 1～4m by the spacing of equidistant layout.

4, floating flexible fluid-directing device according to claim 1 and 2 is characterized in that the flexible curtain structure that described water conservancy diversion curtain (2) selects for use tensile strength to constitute greater than the making a concerted effort of current and tidal wave uplift force, by porous or grid or closing membrane.

5, floating flexible fluid-directing device according to claim 4 is characterized in that the base (3) that connects under the described water conservancy diversion curtain (2) is the heavy beam of bar shaped or pile or damascene structures.

6, floating flexible fluid-directing device according to claim 5, it is characterized in that being adopting between described water conservancy diversion curtain (2) and the float (1) colligation or winding or welding or bonding connection, described water conservancy diversion curtain (2) and base (3) adopt cast-in-place bury underground or throw bury underground or weld, or be adhesively fixed.

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