An ecological floating island fixing system for mountain-source rivers

Abstract

The invention discloses a fixing system of an ecological floating island for a mountain source type stream. The fixing system comprises a fixing pile, wherein the fixing pile is mounted at the bottom of an upstream river bed at the current-against end of an ecological floating island area; the top of the fixing pile is provided with a first steel ring; a first steel hook mounted inside the first steel ring is connected with a first pulley through an inhaul cable; one end of the first pulley is connected with a second pulley through a fixing upright rod; the other end of the first pulley is joined with a second steel ring through a cross beam; a second steel hook mounted inside the second steel ring is joined with the second pulley through an inhaul cable. The structure is compact; the variation of a water level is great; the fixing system can be also applicable to the mountain source type stream which is high in the water level and quick in water velocity; further, the manufacturing cost is low; further, a hung chain cannot influence attractiveness and is difficultly aged; the service life of the hung chain is prolonged; the practicability is high; the design is novel; the fixing system is a quite good innovative scheme, and quite has a market popularization prospect.

Description

technical field [0001] The invention relates to an ecological management system, in particular to a mountain source type river ecological floating island fixing system. Background technique [0002] The rivers in our country are polluted by the discharge of land-based industrial and agricultural pollutants. Many water bodies have become inferior v black and smelly rivers. Its pollutants are mainly COD, ammonia nitrogen, and total phosphorus. In order to reduce COD, total phosphorus, and ammonia nitrogen in the river. The most effective method is to introduce a biological treatment system into the river water body. Among them, the ecological floating islands suspended on the water surface are installed in the river water body, because the roots of green plants planted on the floating islands can absorb C, N, P, etc. in the water system, which can greatly reduce the concentration of pollutants in the water body. It is also possible to hang biological packing in the water bo...

AI Technical Summary

Problems solved by technology

[0008] 1) For rivers with large water level changes, such as a water level change of 5m, at least 5m of metal fixing positions are exposed on the water surface at low water levels, which will increase the cost and affect the landscape

[0009] 2) For rivers with deep water level and fast flow velocity, since the metal piles are fixed at the bottom of the river, the point of action of the floating island’s water impulse is on the water surface, and the torque moment is h×F, where h is the water depth and F is the impulse force, and the torque moment will be very large. The fixing requirements of metal piles and their own strength and torsion resistance are very high, and the cost of construction is very high

[0014] 1) The fixed piles on the shore are only suitable for floating islands on the shore. For the offshore floating islands in the river, the resultant force of the chain tension and the current impulse is the shore force, which can only make the floating islands dock.

[0015] 2) Because the fixed piles on the shore must be set above the highest water level, the chain chain will become a chain hanging above the floating island, which will affect the landscape and be easily damaged by aging

Because the connection point of the chain is below the highest water level, for a river with deep water level and high flow velocity, the torsional moment borne by the fixed pile is very large, the cost is high, and the hanging chain also affects the appearance

[0017] In view of the above shortcomings, this method cannot be applied to mountain-source rivers with large water level changes, deep water levels and fast water flow.

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