CN212087157U

CN212087157U - Submerged plant floating bed capable of self-adjusting depth

Info

Publication number: CN212087157U
Application number: CN202020358900.4U
Authority: CN
Inventors: 邱伟建; 黄晓峰; 蒋俊; 张雅晶; 廖瑜欣; 郭赟
Original assignee: Wuxi Taihu Lake Restoration Co ltd
Current assignee: Wuxi Taihu Lake Restoration Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-12-08
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a submerged plant floating bed of self-adjusting degree of depth belongs to river restoration technical field. The submerged plant floating bed of the utility model is characterized in that the bottom of the submerged plant net cage is suspended with the anchor, the weight of the anchor is adjusted according to the weight of the submerged plant floating bed, under the action of the floating ball and the anchor, the submerged plant net cage can be self-adjusted up and down along with the rising or falling of the water level, and the submerged plant floating bed is ensured to be kept in a water area with higher transparency for a long time without light sensation, artificial adjustment or additional electric device adjustment, thus being more convenient; the submerged plant floating bed adopts the coconut fiber to manufacture the vegetation planting blanket, the coconut fiber has good scouring resistance effect, fine fiber, smaller gap and better heat preservation, and compared with the plastic and the like in the prior art, the submerged plant floating bed is more environment-friendly and has lower cost.

Description

Submerged plant floating bed capable of self-adjusting depth

Technical Field

The utility model relates to a submerged plant floating bed of self-adjusting degree of depth belongs to river restoration technical field.

Background

At present, the economic development of China is high, and great threat has been generated to river and lake ecosystems, so that the water pollution is increasingly serious. In China, there are 50000 rivers with river basin area over 100 square kilometers, and most of seven water systems including Yangtze river are damaged by water pollution to different degrees. The data show that: rivers and river reach with different degrees of pollution account for more than 25%, and such water sources cannot meet the requirements of most basic irrigation water; while 78% of the river reach through cities are unsuitable as a source of potable water. The methods currently applied to river pollution treatment include physical methods, chemical methods, biological methods, ecological methods, and the like. Among the various methods, phytoremediation has become an important engineering method for treating river pollution because it has a good purification effect, is economical and environmentally friendly, and can reconstruct a healthy water ecosystem. Aquatic plants of different living types, emerging plants, floating leaf plants and submerged plants, are all applied in the practice of water ecological restoration engineering. However, in urban rivers with deep water level, steep bank slope and heavy pollution, only emergent aquatic plant ecological floating beds are generally adopted to purify water and restore water ecological systems due to low transparency and lack of plant growth space. The emergent aquatic plant ecological floating bed has simple facilities, easy construction and convenient management, provides a growing environment for microorganisms and animals and plants in water, thereby degrading and transferring pollutants by utilizing the life activities of the microorganisms and the plants and purifying and treating the pollutants for a long time. However, the emergent aquatic plant floating bed has poor water quality purification effect and poor performance of improving the polluted water body because only the root system of the emergent aquatic plant is contacted with pollutants in the water body.

In fact, submerged plants may play a more important role in the treatment of urban polluted rivers. The submerged plant is a symbol of a healthy water ecosystem, and the submerged plant recovery is an important component of the water body in-situ restoration technology. The submerged plant can better absorb nitrogen and phosphorus nutrient substances in the water body, the submerged plant can improve the dissolved oxygen in the water body through the oxygen secretion effect of the root system, the roots, stems and leaves of the submerged plant can be used as a good habitat for attached microorganisms, biological nitrogen and phosphorus removal is promoted, the submerged plant provides a richer ecological site, the growth and propagation of various food chains in the water are promoted, and the submerged plant can also release allelochemicals to the water to effectively inhibit the growth of planktonic algae and improve the transparency of the water body. In conclusion, the submerged plants are an important measure for purifying the water body and an important support system for the health of the water body. Therefore, the emergent aquatic plant ecological floating bed is constructed, and the submerged plant floating bed is placed at the same time, so that the river water quality can be better purified, and a healthy water ecological system is rebuilt.

In a river channel, according to different fixing modes of submerged plants, the submerged plant floating bed has two typical types, one type is planting by adopting a hollow planting basket or a planting groove, and the other type is planting by paving matrixes such as coarse sand, broken stones and the like. In the first type, the planting basket is wrapped with the submerged plants such as sponges, the growth of the submerged plants is limited, and the submerged plants in the submerged plant floating bed with the same area are obviously low in coverage rate, so that the water body purification capacity is reduced. In the second type, coarse sand and gravel are adopted, so that the buoyancy of the ecological floating bed is seriously influenced, and the coarse sand and gravel are not beneficial to the growth and propagation of plants. In addition, the submerged plant floating bed is mostly covered with nutrient substrates such as soil.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a submerged plant of self-regulation degree of depth floats bed, the utility model discloses a submerged plant floats bed can realize the self-regulation degree of depth, can make the submerged plant box with a net remain throughout on suitable degree of depth, provides sufficient illumination, is favorable to the submerged plant to grow.

Specifically, the technical scheme of the utility model is that: a submerged plant floating bed capable of self-adjusting depth comprises four steel pipes, a floating ball, a submerged plant net cage and an anchor, wherein the floating ball is connected with the submerged plant net cage; the submerged plant net cage comprises a rigid net cage, a fishing net bag, a vegetation planting blanket and a flexible fishing net covering the vegetation planting blanket, the rigid net cage surrounds the vegetation planting blanket and the flexible fishing net, the peripheries of the vegetation planting blanket and the flexible fishing net are fixed on the rigid net cage, the fishing net bag is hung at the bottom of the rigid net cage, and the peripheral edge of the fishing net bag is connected with the rigid net cage; four corners of the upper part and four corners of the lower part of the submerged plant net cage are respectively connected with a rubber ring, and the two rubber rings on the same vertical side of the submerged plant net cage are sleeved on the same steel pipe.

The utility model discloses an in an embodiment, the vegetation plants the blanket for environment-friendly vegetation plants the blanket, is formed by the preparation of coconut fiber, and the coconut fiber is resistant to erodeing effectually, the fibre is thinner, the space is less, the heat preservation is better, the thickness that the blanket was planted to the vegetation is 10-20 cm.

In an embodiment of the present invention, the diameter of the mesh of the flexible fishing net is (2-5) cm.

In an embodiment of the present invention, the rubber ring is a sun-proof rubber ring.

In one embodiment of the present invention, the floating ball is an ellipsoidal sun-proof floating ball, the major axis is 100-150cm, and the minor axis is 30-50cm, so that the heavy net cage of submerged plants can be effectively floated; and is wrapped by a fishing net which is extended from the two sides of the submerged plant net cage.

In one embodiment of the present invention, the anchor is an object having a weight that enables the submerged plant net cage to be immersed in water to a depth of 60-100 cm.

The utility model discloses an in the embodiment, anchor is preferably the plastic bottle that is equipped with the sand, can control its weight through what of the size that changes the plastic bottle and sand, and convenient easy operation, according to the weight of putting into submerged plant, can be through the weight of adjusting the anchor, guarantee to float the degree of depth that the bed immersed in water, generally guarantee to float about bed submergence water 60 ~ 100cm, the anchor of this device makes the submerged plant box with a net can be along with the water level rises or descend self-up-and-down regulation, do not need the sensitization, artificial regulation or extra electric actuator adjusts.

In one embodiment of the present invention, the height of the steel pipe is 60-100cm higher than the water surface, and the specific height can be determined according to the highest water level of the river.

In an embodiment of the utility model, the height of the submerged plant net cage is 100-plus-150 cm, and the width is 120-plus-180 cm, so that the submerged plant can still better survive in the river with lower transparency, and a certain growth and propagation space is provided.

In one embodiment of the present invention, the length of the mesh side of the rigid net cage is 2-5cm, so that snails can enter the rigid net cage, and meanwhile, the large fishes are prevented from swallowing the seedlings of the submerged plants, thereby helping the submerged plants to rapidly breed and grow. When the submerged plant grows and breeds rapidly, the snails in the net cage grow gradually, can scrape biofilms on stems and leaves of the submerged plant and can promote the growth of the submerged plant.

The utility model discloses an among the embodiment, the mesh side length of fishing pocket is 0.2 ~ 0.5cm, can protect submerged plant root system to grow and breed, prevents that fish from gnawing, helps forming winding, huge aquatic plant root system of interweaving each other, is favorable to water purification very much.

The utility model discloses an in an embodiment, the submerged plant is preferred to be the elodea alga, the elodea alga is the resistant evergreen submerged plant of stain, and the elodea alga adaptability is extremely strong, purification polluted water that can be better prevents water eutrophication, can also build good quality of water environment. Meanwhile, the waterweed is rich in nutrition and is an excellent food for fishes.

The utility model discloses the beneficial effect who gains:

(1) the utility model discloses a bed is floated to submerged plant is through having hung the anchor thing bottom the submerged plant box with a net, and float the weight that the bed adjusted the anchor thing according to the submerged plant, make the submerged plant float the bed and be located certain degree of depth, under the effect of floater and anchor thing, make the submerged plant box with a net can be along with the water level rises or descend self-up-and-down regulation, do not need the sensitization, artificial regulation or extra electric actuator to adjust, thereby can make the submerged plant box with a net keep all the time on suitable degree of depth, provide sufficient illumination, be favorable to the submerged plant to grow, avoid the lower problem of transparency to appear, lead to the submerged plant dead.

(2) The submerged plant floating bed of the utility model adopts the coconut fiber to manufacture the vegetation planting blanket, the coconut fiber has good scouring resistance effect, thinner fiber, smaller gap and better heat preservation, and compared with the plastic and the like in the prior art, the submerged plant floating bed is more environment-friendly and has lower cost;

(3) the submerged plant floating bed of the utility model can form a good ecological environment, the rigid net cage design not only enhances the stability of the structure, but also leaves meshes to allow snails to enter, and simultaneously prevents large fishes from swallowing submerged plant seedlings, and helps the submerged plants to rapidly breed and grow; the fishing net bag hung below the rigid net cage can protect the submerged plant root system from growing and breeding, prevent fishes from gnawing, is favorable for forming the huge aquatic plant root system which is intertwined with each other, and is favorable for water body purification.

Drawings

Fig. 1 is a schematic structural view of the submerged plant floating bed with self-adjusting depth according to the present invention;

FIG. 2 is a sectional view of the net cage for submerged plants taken along the A-A section; wherein, 1 is the anchor, 2 is the steel pipe, 3 is rigid box with a net, 4 is the floater, 5 is the fishing net bag, 6 is the vegetation blanket of planting, 7 is flexible fishing net.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of better illustrating the invention and is not intended to limit the invention thereto.

Example 1

As shown in fig. 1 and 2, the utility model provides a submerged plant floating bed capable of self-adjusting depth, comprising four steel pipes 2, a floating ball 4, a submerged plant net cage and an anchor 1, wherein the floating ball 4 is connected with the submerged plant net cage, the floating ball 4 is a football-shaped sunscreen floating ball and is wrapped by a fishing net, and the fishing net is a fishing net extending from two sides of the submerged plant net cage; the four steel pipes 2 are fixed in the river sediment and positioned around the submerged plant net cage, and the anchor 1 is positioned below the submerged plant net cage; the submerged plant net cage comprises a rigid net cage 3, a fishing net bag 5, a vegetation planting blanket 6 and a flexible fishing net 7 covering the vegetation planting blanket 6, wherein the vegetation planting blanket 6 and the flexible fishing net 7 are arranged in the rigid net cage 3, and the edges of the vegetation planting blanket and the inner side wall of the rigid net cage 3 are fixed; the edge of the opening of the fishing net bag 5 is connected with the rigid net cage 3, so that the fishing net bag 5 is hung at the bottom of the rigid net cage 3; four corners of the upper part and four corners of the lower part of the submerged plant net cage are respectively connected with a sun-proof rubber ring, and the two rubber rings on the same vertical side of the submerged plant net cage are sleeved on the same steel pipe. The height of the submerged plant net cage is 120cm, and the width of the submerged plant net cage is 150 cm.

Preferably, the vegetation planting blanket is an environment-friendly vegetation planting blanket and is made of coconut fiber, the coconut fiber is good in scouring resistance effect, fine in fiber, small in gap and good in heat preservation, and the thickness of the vegetation planting blanket is 15 cm.

Preferably, the aperture of the flexible fishing net mesh is 3cm × 3 cm.

Preferably, the long ellipsoidal sunscreen floating ball has a long axis of 150cm and a short axis of 50 cm.

Preferably, the anchor is an object with a certain weight, and the weight can ensure that the submerged plant net cage is immersed into water to a depth of 60-100 cm; the anchor is preferably a plastic bottle filled with sand, the weight of the plastic bottle can be controlled by changing the size of the plastic bottle and the amount of the sand, the operation is convenient and easy, the weight of the submerged plant can be adjusted according to the weight of the submerged plant, the depth of the floating bed immersed in water is guaranteed, the floating bed is generally guaranteed to be immersed in water by about 60-100cm, the anchor of the device enables the submerged plant net cage to be adjusted up and down along with the rising or falling of the water level, and the device does not need light sensing, manual adjustment or additional electric device adjustment.

Preferably, the steel pipe is 60-100cm higher than the water surface, and the specific height can be determined according to the highest water level of the river.

Preferably, the side length of the meshes of the rigid net cage is 3cm (the rigid net body is made of 304 stainless steel wires, and the mesh size of the meshes of the net is 3cm multiplied by 3cm), so that snails can enter the rigid net cage, and meanwhile, large fishes are prevented from swallowing seedlings of submerged plants, and the rapid propagation and growth of the submerged plants are facilitated. When the submerged plant grows and breeds rapidly, the snails in the net cage grow gradually, can scrape biofilms on stems and leaves of the submerged plant and can promote the growth of the submerged plant.

Preferably, the aperture of the mesh of the fishing net bag is 0.5cm multiplied by 0.5cm, the submerged plant root system can be protected from growing and breeding, fishes can be prevented from eating, the mutually interlaced and wound huge aquatic plant root system is formed, and the water body purification is very facilitated.

Preferably, the submerged plant is waterweed, the waterweed is a pollution-resistant evergreen submerged plant, the waterweed has extremely strong adaptability, can better purify a polluted water body, prevent water body eutrophication, and can also create a good water quality environment. Meanwhile, the waterweed is rich in nutrition and is an excellent food for fishes.

The using method comprises the following steps: the submerged plant floating bed is installed according to the structure, corresponding parameters and sizes are selected according to requirements, small ball mud balls can be arranged on roots and stems of the waterweed seedlings in spring, the seedlings are directly plugged into the coconut fibers of the overlying fishing net in the net cage, the seedlings account for 1/5 of the volume of the net cage, at the moment, the submerged plant net cage is immersed shallowly in water, at the moment, the light transmittance of river water is high, plant growth is facilitated, when the submerged plant grows up, the biomass is increased, the net cage automatically sinks, the net cage is immersed slightly deeply in water, growth and propagation of the submerged plant are facilitated, and when the waterweed is fully covered with the net cage in late summer, part of the waterweed can be harvested, the volume of the waterweed 1/5 is kept, the waterweed can be grown and propagated continuously, water bodies are further purified, and a healthy ecological system is constructed. When the waterweeds grows over the whole ecological floating bed, the waterweeds can be harvested, and can be harvested for multiple times in one year. In the process, the rigid net cage of the submerged plant net cage has small aperture from the beginning, and the snails can enter the rigid net cage, so that the submerged plant can be prevented from being swallowed by large fishes, and the submerged plant can be rapidly bred and grown. When the submerged plant grows and breeds rapidly, the snails in the net cage grow gradually, can scrape the biological film on the stem and leaf of the submerged plant, and is beneficial to the growth of the submerged plant.

Example 2

A river channel is an urban polluted river, the width of the river channel is 13-17 m, and the purification length of the river channel is 500 m.

A submerged plant floating bed capable of self-adjusting depth comprises four steel pipes 2, a floating ball 4, a submerged plant net cage and an anchor 1, wherein the floating ball 4 is connected with the submerged plant net cage, the floating ball 4 is an oblong-ellipsoidal sun-proof floating ball (the length is 150cm, and the diameter is 50cm) and is wrapped by a fishing net, and the fishing net is a fishing net extending from two sides of the submerged plant net cage; the four steel pipes 2 are fixed in the river sediment (60 cm higher than the water surface), the submerged plant net cage is positioned in a space formed by the four steel pipes, and the anchor 1 is positioned below the submerged plant net cage; the submerged plant net cage comprises a rigid net cage 3, a fishing net bag 5, a vegetation planting blanket 6 (the thickness is 15cm) made of coconut fiber and a flexible fishing net 7 covering the vegetation planting blanket, wherein the rigid net cage 3 surrounds the vegetation planting blanket 6 and the flexible fishing net 7, the peripheries of the vegetation planting blanket 6 and the flexible fishing net 7 are fixed on the rigid net cage 3, the size of meshes of the rigid net cage 3 is 3cm multiplied by 3cm, the fishing net bag 5 (the aperture of the meshes is 0.5cm multiplied by 0.5cm) is hung at the bottom of the rigid net cage 3, and the periphery of the fishing net bag 5 is connected with the rigid net cage 3; four corners of the upper part and four corners of the lower part of the submerged plant net cage are respectively connected with a sun-proof rubber ring, and the two rubber rings on the same vertical side of the submerged plant net cage are sleeved on the same steel pipe.

Be two respectively in river course both sides the utility model discloses a submerged plant floats bed system of self-adjusting degree of depth. The floating bed of the submerged plant is 120cm multiplied by 150m multiplied by 100cm, the interval between the middle parts is 3m, so that the boat can conveniently come in and go out, and the boat is mainly used for maintenance. The submerged plant floating bed is used for planting the waterweeds. The water quality of the river is changed from V-type water to IV-type water after being treated for 40 days, and is kept for a long time.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The submerged plant floating bed is characterized in that the depth of the submerged plant floating bed can be adjusted by self, and the submerged plant floating bed specifically comprises four steel pipes, a floating ball, a submerged plant net cage and an anchor, wherein the floating ball is connected with the submerged plant net cage, the four steel pipes are fixed in bottom mud of a river and positioned around the submerged plant net cage, and the anchor is positioned below the submerged plant net cage; the submerged plant net cage comprises a rigid net cage, a fishing net bag, a vegetation planting blanket and a flexible fishing net covering the vegetation planting blanket, the rigid net cage surrounds the vegetation planting blanket and the flexible fishing net, the peripheries of the vegetation planting blanket and the flexible fishing net are fixed on the rigid net cage, the fishing net bag is hung at the bottom of the rigid net cage, and the peripheral edge of the fishing net bag is connected with the rigid net cage; four corners of the upper part and four corners of the lower part of the submerged plant net cage are respectively connected with a rubber ring, and the two rubber rings on the same vertical side of the submerged plant net cage are sleeved on the same steel pipe.

2. The submerged plant floating bed according to claim 1, wherein the vegetation planting blanket is made of coir fiber and has a thickness of 10-20 cm.

3. The submerged plant floating bed according to claim 1, wherein the diameter of the mesh of the flexible fishing net is 2-5 cm.

4. The submerged plant floating bed as claimed in claim 1, wherein the floating ball is an ellipsoidal sunscreen floating ball, the major axis is 100-150cm, and the minor axis is 30-50 cm.

5. The submerged plant floating bed according to claim 1, wherein the anchor is a body having a weight which enables the submerged plant net cage to be submerged to a depth of 60-100 cm.

6. The submerged plant floating bed according to claim 1, wherein the steel pipe is 60-100cm above the water surface.

7. The submerged plant floating bed according to claim 1, wherein the height of the submerged plant net cage is 150cm and the width is 180cm and 120 cm.

8. The submerged plant floating bed according to claim 1, wherein the length of the mesh side of the rigid net cage is 2-5 cm.

9. The submerged plant floating bed according to claim 1, wherein the length of the mesh side of the fishing net bag is 0.2-0.5 cm.

10. The floating bed for submerged plants according to claim 1, wherein the vegetation growing blanket is planted with submerged plants, and the submerged plants are waterweed.