Thermal insulation module for constructed wetland and modular thermal insulation device

Abstract

The utility model discloses a heat preservation module and a modularized heat preservation device for an artificial wetland, which are easy to manufacture and low in cost. The heat preservation module comprises a floating net frame unit, the floating net frame unit comprises a steel wire mesh and a floating component connected with the steel wire mesh, a heat preservation layer woven by straw is laid on the upper surface of the steel wire mesh, and groove holes staggered from the floating component are reserved in the heat preservation layer. Each floating net rack unit is provided with a connecting piece used for being connected with the adjacent floating net rack unit. The modularized heat preservation device comprises at least two heat preservation modules for the constructed wetland, and the heat preservation modules are spliced side by side and then connected into a whole through connecting pieces. The device has the beneficial effects that the device is convenient to mount and dismount, low in cost and convenient to use, is not influenced by the size of the constructed wetland, is high in practicability and can be widely applied.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat preservation structure of artificial wetland, especially a modular heat preservation device for artificial wetland. BACKGROUND

[0002] As a new type of ecological sewage treatment technology, artificial wetland combines sewage treatment and environmental ecology organically, beautifies the environment while effectively treating sewage, and has the advantages of low cost and no need for professional management. However, the water temperature inside the artificial wetland is too low in winter, the biological activity inside the wetland system decreases, and the biological survival ability decreases. Compared with other seasons, the removal rates of main indicators such as COD (chemical oxygen demand), ammonia nitrogen, TN (total nitrogen), and TP (total phosphorus) are obviously low, the treatment efficiency of the artificial wetland is low, and in addition, low temperature can cause problems such as freezing of the filler layer, bed body hypoxia, and other problems affecting the normal operation of the artificial wetland.

[0003] At present, there are many winter artificial wetland heat preservation measures. For example, film covering, ice layer covering, plant covering, greenhouse, compost heating, anaerobic fermentation combustion heating, and shallow geothermal heating. Among them, the film method has relatively good heat preservation effect, low cost, and strong practicability. However, the single-layer film greenhouse method is currently used in engineering, and the heat preservation effect is limited. Moreover, it is in a fixed form and cannot be disassembled at any time, has high cost, cannot be used in large quantities, greatly reduces the use frequency of actual application, and has important effects on ensuring the normal operation of the winter artificial wetland purification system. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of providing a heat preservation module for artificial wetland and a modular heat preservation device which are easy to manufacture and have low cost.

[0005] The utility model discloses a technical scheme that solves its technical problem is: the heat preservation module for artificial wetland, including floating net rack unit, the floating net rack unit includes having steel wire mesh and with the steel wire mesh connection's floating component, the upper surface of steel wire mesh is laid with the heat preservation layer of straw weaving, and the slot hole of staggered floating component arrangement is reserved on the heat preservation layer, be provided with the connecting piece for being connected with adjacent floating net rack unit on the floating net rack unit.

[0006] For the convenience of mutual connection of adjacent heat preservation modules into a piece, and ensuring the growth space of plant root system, the floating component is arranged on the lower surface of the steel wire mesh.

[0007] For reducing the cost, the floating component can adopt the sponge block arranged between the slot holes and the sponge strip arranged on the periphery of the steel wire mesh.

[0008] The average thickness of the heat preservation layer 3 is 4-8cm.

[0009] The connecting piece can adopt conventional plastic cable ties, and for the convenience of disassembly, the connecting piece is detachable connecting piece fixedly connected with the steel wire mesh.

[0010] For the convenience of manufacturing, the steel wire mesh is in the rectangular structure, facilitating cutting and splicing.

[0011] The utility model also provides a modular heat preservation device for artificial wetland, comprising at least two heat preservation modules for artificial wetland, and the heat preservation modules are integrally connected by connecting pieces after being spliced side by side.

[0012] The utility model has the advantages of convenient installation and disassembly, low cost, convenient use, no influence of artificial wetland size, strong practicality, and can be widely used. ACCURACY OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the heat preservation module for artificial wetland of the utility model.

[0014] Figure 2 It is Figure 1 The heat preservation module of the utility model is spliced with the adjacent module.

[0015] Marked in the figure: 1 - steel wire mesh, 2 - floating member, 3 - thermal insulation layer, 4 - slot hole, 5 - connecting piece, 21 - sponge strip, 22 - sponge block, H - thermal insulation layer thickness. DETAILED DESCRIPTION

[0016] The utility model is further explained in connection with the drawings below.

[0017] As Figure 1 , Figure 2 Indicated, the utility model discloses a thermal insulation module for artificial wetland, including floating net rack unit, the floating net rack unit includes steel wire mesh 1 and the floating member 2 of supporting steel wire mesh 1, the upper surface of steel wire mesh 1 is laid with straw weaving's thermal insulation layer 3, and the thermal insulation layer 3 is reserved with the slot hole 4 of staggered floating member 2 arrangement, be provided with the connecting piece 5 for being connected with adjacent floating net rack unit on the floating net rack unit. Steel wire mesh 1 is used as the support framework of entire thermal insulation module, has suitable support strength, is used for supporting straw weaving's thermal insulation layer 3, and the straw of constituting thermal insulation layer 3 can be partially sunk to contact with water surface by grid position, convenient straw is used as biological carbon source to supplement to the inside of artificial warm place, and the floating member 2 provides buoyancy for thermal insulation module, and its density is less than the density of water, can adopt wooden block, board and so on material, to reduce cost also can adopt sponge to make, and the slot hole 4 can be used for planting plants, does not affect the vegetation planting on the surface of artificial wetland. Thermal insulation module is placed on the water surface of artificial wetland and uses, after adjacent thermal insulation module is spliced side by side, is connected into a piece by connecting piece 5, and is used together with vegetation to constitute the thermal insulation structure of wetland surface whole.

[0018] The floating member 2 is arranged on the lower surface of the steel wire mesh 1. The floating member can also be embedded with the steel wire mesh for use.

[0019] When the floating member 2 is made of sponge, it can include sponge blocks 22 arranged between the slot holes 4 and sponge strips 21 arranged around the steel wire mesh 1.

[0020] For the southern artificial wetland that does not need to use a heating device in winter, the average thickness of the thermal insulation layer 3 is 4-8 cm, which has a thermal insulation effect. If the thermal insulation layer is too thick, the buoyancy required by the floating member will be greater, and a larger volume of floating member is needed, which may affect the planting of plants and the supplement of straw as a carbon source to the artificial wetland.

[0021] The connecting piece 5 is a detachable connecting piece fixedly connected with the steel wire mesh 1, such as a lock catch structure. Specifically, a plastic U-shaped buckle matching the diameter of the steel wire constituting the steel wire mesh can be directly selected and purchased on the market to connect adjacent steel wire meshes together.

[0022] Steel wire mesh 1 is recommended to adopt a close-paving splicing polygonal shape, especially a rectangular shape which is convenient for processing and splicing. Other shapes can also be adopted according to actual conditions near the edge of the constructed wetland.

Claims

1. Thermal insulation module for a constructed wetland, comprising a floating grid unit, which floating grid unit comprises a steel wire mesh (1) and floating members (2) supporting the steel wire mesh (1), characterized in that: The upper surface of the steel wire mesh (1) is paved with a straw-woven heat preservation layer (3), and the heat preservation layer (3) is provided with slots (4) for arranging the staggered floating members (2) in a staggered manner.

2. A thermal insulation module for a constructed wetland as claimed in claim 1 characterised in that: The floating members (2) are arranged on the lower surface of the steel wire mesh (1).

3. A thermal insulation module for a constructed wetland as claimed in claim 2, characterised in that: The floating members (2) comprise sponge blocks (22) arranged between the slots (4) and sponge strips (21) arranged on the periphery of the steel wire mesh (1).

4. The thermal insulation module for a constructed wetland of claim 1, characterized in that: The average thickness of the heat preservation layer (3) is 4-8 cm.

5. A thermal insulation module for a constructed wetland as claimed in claim 1, 2, 3 or 4 characterised in that: The connecting members (5) are detachable connecting members fixedly connected with the steel wire mesh (1).

6. A thermal insulation module for a constructed wetland as claimed in claim 1, 2, 3 or 4 characterised in that: The steel wire mesh (1) has a rectangular structure.

7. Modular thermal insulation device for constructed wetlands, characterized by: The application further provides a heat preservation module for a constructed wetland, comprising at least two heat preservation modules as claimed in any one of claims 1-6, and the heat preservation modules are connected with each other into an integrated whole through the connecting members after being spliced side by side.

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