Combined ecological permeable dam

Abstract

The utility model relates to a combined ecological permeable dam which comprises a plurality of dam walls which are sequentially arranged in a step shape in the water flow direction, and each dam wall comprises a plurality of dam bodies which are sequentially and tightly arranged in the direction perpendicular to the water flow. The dam body comprises a cuboid frame, four water-permeable pore plates which are vertically fixed at openings in four side surfaces of the cuboid frame respectively, a biological filler which is filled in the cuboid frame and is positioned among the four water-permeable pore plates, and a plurality of planting baskets which are detachably embedded at the top of the biological filler; according to the utility model, a combined splicing structure is adopted, so that the construction period is short, the process is simple and convenient, the recycling function is realized, and time, labor and funds are saved during construction and disassembly; meanwhile, the use modes are flexible and diverse; in addition, the purification effect and the water reoxygenation effect are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of permeable dams, in particular to a combined ecological permeable dam. Background Art

[0002] An ecological permeable dam is a special building that allows part of the water to pass through the dam body and is artificially constructed in a polluted river channel. The purification principles of the ecological permeable dam mainly include physical filtration, plant absorption and microbial degradation.

[0003] Existing dam bodies are generally built with gravel and crushed stone, with an overall right-angled trapezoid shape. Emergent plants are planted on the top plane to remove organic matter using the plant absorption principle, and filter materials are laid on the slope to provide water permeability and adsorption functions. However, the construction period of dam bodies built with gravel and crushed stone is long and they cannot be recycled. Both construction and demolition are time-consuming, labor-intensive and costly. At the same time, only a small amount of filter material can be arranged on the existing dam bodies, the purification effect is poor, the contact time between water and air is short, and the reoxygenation effect of the water body is also poor, which needs further improvement. Utility Model Content

[0004] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a combined ecological permeable dam with a short construction period, a simple and convenient process and a recycling function to save time, labor and money in construction and demolition, while the usage methods are flexible and diverse, and the water purification and reoxygenation effects are greatly improved.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a combined ecological permeable dam, characterized in that it includes a plurality of dam walls arranged in a step-like manner in the direction of water flow, and the dam wall includes a plurality of dam bodies arranged in a straight line and closely arranged in sequence between the banks on both sides of the water body;

[0006] The dam body includes a rectangular frame, four permeable holes vertically fixed at the four side openings of the rectangular frame, biological fillers filled in the rectangular frame and located between the four permeable holes, and multiple detachable planting baskets embedded on the top of the biological fillers.

[0007] Preferably, the height of the rectangular parallelepiped frame in any one of the dam bodies is greater than the height of the rectangular parallelepiped frame in a dam body located on the downstream side thereof.

[0008] Preferably, the top opening of the planting basket is not lower than the top of the biological filler.

[0009] Preferably, the biological filler is composed of particles with different particle size distributions.

[0010] Preferably, the particle sizes of the particles decrease gradually along the water flow direction.

[0011] Preferably, the pore size of the water-permeable plate is less than 0.5 cm.

[0012] Preferably, the center distance between any two adjacent and closest planting baskets is 30 cm.

[0013] Compared with the prior art, the advantages of the utility model are: the utility model adopts a modular assembly structure, so the construction period is short, the process is simple and convenient, and it has the function of recycling, and the construction and demolition are both time-saving, labor-saving and cost-saving; at the same time, the position and angle of the permeable dam can be changed as needed during actual use, and the number of dam walls can be increased or decreased according to the water quality, so the use method is flexible and diverse; in addition, a large amount of biological filler can be filled in each dam body and biological fillers with different functions can be selected according to the water quality, thereby greatly improving the purification effect; and because the multiple dam walls are arranged in a stepped shape, when the water flows from a dam wall on the upstream side to a dam wall on the downstream side, a waterfall effect will be produced, which effectively increases the contact time between the water flow and the air, thereby greatly improving the water reoxygenation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side cross-sectional structural diagram of the utility model;

[0015] Figure 2 It is a top view of the structure of the utility model. DETAILED DESCRIPTION

[0016] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships, such as A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0017] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0018] like Figures 1-2 As shown, a combined ecological permeable dam comprises a plurality of dam walls 1 arranged in a step-like manner in the direction of water flow, and the dam wall 1 comprises a plurality of dam bodies 11 arranged in a straight line and closely arranged in sequence between the banks on both sides of the water body;

[0019] The dam body 11 includes a rectangular frame 111, four permeable holes 112 vertically fixed at the four side openings of the rectangular frame 111, biological fillers 113 filled in the rectangular frame 111 and located between the four permeable holes 112, and a plurality of detachable planting baskets 114 embedded in the top of the biological fillers 113.

[0020] The height of the rectangular parallelepiped frame 111 in any one of the dam bodies 11 is greater than the height of the rectangular parallelepiped frame 111 in the dam body 11 located at the downstream side thereof.

[0021] The top opening of the planting basket 114 is not lower than the top of the biological filler 113 to prevent particles in the biological filler 113 from falling into the planting basket 114 .

[0022] The biological filler 113 is composed of particles with different particle size distributions.

[0023] The particle size of the particles decreases along the direction of water flow.

[0024] The aperture of the water-permeable plate 112 is less than 0.5 cm.

[0025] The center distance between any two adjacent and closest planting baskets 114 is 30 cm.

[0026] Directions:

[0027] Each dam wall 1 is placed in the water body in turn, and the height of each dam wall 1 is reduced in turn along the water flow direction to present a step-like shape. Then, the rectangular frame 111 in the dam body 11 of each dam wall 1 is filled with biological fillers 113, and a plurality of planting baskets 114 are embedded on the top of each biological filler 113. Then, a certain amount of planting soil is placed in each planting basket 114 and aquatic plants (irises, yellow irises, cannas, etc.) are planted. When the water flows toward the first dam wall 1, the water flows through the permeable plate 112 on the water-facing side and enters the interior of the rectangular frame 111, and then flows through the biological fillers 113. The biological fillers 114 are placed in the water body 111, and then the water flows through the permeable plate 112 on the water-facing side and enters the interior of the rectangular frame 111, and then flows through the biological fillers 113. The material 113 will filter and adsorb the water flow, thereby isolating the impurities and organic matter in the water body. The roots of the aquatic plants planted in each planting basket 114 will absorb water from the water flowing through the biological filler 113, and at the same time absorb the isolated organic matter, thereby removing the organic matter using biological principles; then, the water flowing through the biological filler 113 passes through the permeable hole plate 112 on the back side of the water surface and enters a dam wall 1 on the downstream side in the same way. Since the dam walls 1 are arranged in a stepped shape, the water flow will produce a waterfall effect when entering a dam wall 1 on the downstream side, thereby improving the reoxygenation effect of the water body.

[0028] In addition, the types of particulate matter that make up the biological filler 113 can be set differently according to the direction of water flow. For example, in each dam body 11 in a dam wall 1 on the upstream side, particulate matter with a main filtering function can be selected, while in each dam body 11 in each dam wall 1 on the downstream side, particulate matter with phosphorus removal, denitrification, or both phosphorus removal and denitrification functions can be selected; at the same time, the biological filler 113 in an individual dam body 11 can be cleaned and replaced separately without affecting the water purification effect of other dam bodies 11.

[0029] The utility model adopts a modular assembly structure, so the construction period is short, the process is simple and convenient, and it has the function of recycling, which saves time, labor and money in construction and demolition; at the same time, the position and angle of the permeable dam can be changed as needed during actual use, and the number of dam walls 1 can be increased or decreased according to water quality conditions, so the use method is flexible and diverse; in addition, each dam body 11 can be filled with a large amount of biological fillers 113 and biological fillers 113 with different functions can be selected according to water quality, thereby greatly improving the purification effect; and because the multiple dam walls 1 are arranged in a stepped shape, when the water flows from a dam wall 1 on the upstream side to a dam wall 1 on the downstream side, a waterfall effect will be generated, which effectively increases the contact time between the water flow and the air, thereby greatly improving the water reoxygenation effect.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A combined ecological permeable dam, characterized in that: It comprises a plurality of dam walls arranged in a stepped manner in the direction of water flow, wherein the dam wall comprises a plurality of dam bodies arranged in a straight line and closely arranged in sequence between the banks on both sides of the water body; The dam body includes a rectangular frame, four permeable holes vertically fixed at the four side openings of the rectangular frame, biological fillers filled in the rectangular frame and located between the four permeable holes, and multiple detachable planting baskets embedded on the top of the biological fillers.

2. A combined ecological permeable dam according to claim 1, characterized in that: The height of the rectangular parallelepiped frame in any one of the dam bodies is greater than the height of the rectangular parallelepiped frame in a dam body located on the downstream side thereof.

3. The combined ecological permeable dam according to claim 1, characterized in that: The top opening of the planting basket is not lower than the top of the biological filler.

4. The combined ecological permeable dam according to claim 1, characterized in that: The biological filler is composed of particles with different particle size distributions.

5. A combined ecological permeable dam according to claim 4, characterized in that: The particle sizes of the particles decrease successively along the water flow direction.

6. The combined ecological permeable dam according to claim 1, characterized in that: The aperture of the water-permeable plate is less than 0.5 cm.

7. The combined ecological permeable dam according to claim 1, characterized in that: The center distance between any two adjacent and closest planting baskets is 30 cm.

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