CN212375001U

CN212375001U - Undercurrent artificial wetland capable of automatically increasing oxygen content of inlet water

Info

Publication number: CN212375001U
Application number: CN201922339067.9U
Authority: CN
Inventors: 孙健; 李卿; 刘琪; 蔡世颜; 贺珊珊
Original assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Current assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2021-01-19
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to an automatic improve undercurrent constructed wetland of oxygen content of intaking, including the main cell body, the main cell body is equipped with the packing layer, main cell body top one end is equipped with the inlet tube, and upper portion position is equipped with the drain pipe in the other end, the inlet tube is equipped with the multirow raceway along length direction in proper order, the raceway is equipped with a plurality of vertical pressure pipes along main cell body width direction, vertical pressure pipe top is equipped with the shower nozzle, the packing layer sets gradually aquatic plant, 2 ~ 5mm shale ceramsite and, 5 ~ 10mm gravel packing layer and 10 ~ 15mm gravel packing layer from last to down, be equipped with the collector pipe in the gravel packing layer, be equipped with the sump pit between collector pipe and the drain pipe. The utility model discloses an adopt fountain formula oxygenation mode, increase the contact time of rivers and air and improve the oxygen content in the water body of intaking, improve the oxygen deficiency state of wetland, improve wetland sewage treatment capacity, and make full use of pressure of intaking, reduce energy loss, do not receive the weather influence, have energy-concerving and environment-protective benefit.

Description

Undercurrent artificial wetland capable of automatically increasing oxygen content of inlet water

Technical Field

The utility model relates to an artificial wetland technical field, concretely relates to automatic improve device of subsurface flow wetland dissolved oxygen content of intaking.

Background

As a typical constructed wetland, the subsurface flow wetland has small floor area and good removal capability on organic matters, nitrogen, phosphorus and other pollutants, and is widely applied to practical engineering.

The purification effect of the undercurrent artificial wetland is influenced by a plurality of factors, wherein the removal of nitrogen is always the limiting factor of the efficiency of the undercurrent artificial wetland. The removal effect of the subsurface flow constructed wetland treatment system on nitrogen comprises adsorption, filtration, precipitation of a substrate, volatilization of ammonia, absorption of plants and removal of nitrogen through nitrification and denitrification under the action of microorganisms in the wetland. The nitrification process of microorganisms requires the presence of nitrifying bacteria populations and the necessary aerobic environment. In the wetland, the wetland is always in an anaerobic state, so that the growth of nitrifying bacteria and the occurrence of nitration reaction are limited. Therefore, the dissolved oxygen in the subsurface flow constructed wetland is increased, the nitrification reaction of the microorganisms can be smoothly carried out, and the nitrogen is removed through the denitrification action of the microorganisms, so that the denitrification efficiency is improved.

Currently, in practical engineering applications, there are mainly 3 oxygenation methods: 1. a vent pipe is arranged in the wetland for natural ventilation; 2. the air compressor is used for strengthening ventilation into the wetland; 3. air is introduced by utilizing wind energy. However, the 3 oxygenation modes have defects, such as low transmission efficiency of a natural ventilation mode; the mechanical compression mode can increase the capital investment; the wind energy oxygenation mode is greatly influenced by climate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device for improving the intake oxygen content of subsurface wetland, and then improving the oxygen content in the matrix and increasing the sewage treatment capacity of wetland.

The utility model provides a technical scheme that its technical problem adopted does:

the utility model provides an automatic improve undercurrent constructed wetland of oxygen content of intaking, includes the main cell body, the main cell body is equipped with the packing layer, main cell body top one end is equipped with the inlet tube that is linked together with external water source, and upper portion is equipped with the drain pipe in the other end, the inlet tube be equipped with the multirow raceway along length direction in proper order, the raceway is equipped with a plurality of vertical pressure pipes along main cell body width direction, vertical pressure pipe top is equipped with the loudspeaker form shower nozzle of big-end-up in the opening, the packing layer sets gradually aquatic plant, 2 ~ 5mm shale ceramsite packing layer and, 5 ~ 10mm gravel packing layer and 10 ~ 15mm gravel packing layer from last.

Further, the aquatic plants are positioned in the gap between the adjacent water conveying pipes.

Furthermore, the bottom of the packing layer is provided with a water collecting pipe, the water collecting pipe is positioned in the gravel packing layer, the water collecting pipe is arranged along the length direction of the main tank body, a water collecting well is arranged between the water collecting pipe and the water discharging pipe, and one end of the water collecting pipe penetrates through an end wall at one end of the water collecting well.

Furthermore, the water delivery pipe and the water inlet pipe are vertically connected on the horizontal plane through welding or four-way connection.

Further, the vertical pressure pipe is connected with the water conveying pipe through welding or a tee joint and is perpendicular to the horizontal plane of the wetland, and preferably, the length of the vertical pressure pipe is 20-30 cm.

Further, a circle of water outlet hole is formed in the upper surface of the spray head along the outer edge, and preferably, the diameter of the spray head is 5-10 cm, and the water outlet hole diameter is 1-2 mm.

The utility model has the advantages that: the sewage enters the wetland in a spraying state by adopting a fountain type oxygenation mode, the contact time of water flow and air is increased to improve the oxygen content in the water inlet body, the anoxic state of the wetland is improved, and the sewage treatment capacity of the wetland is improved; the system makes full use of the water inlet pressure, reduces energy loss, is not influenced by weather, and has certain energy-saving and environment-friendly benefits.

Drawings

Fig. 1 is a sectional view of an artificial wetland;

fig. 2 is a top view of the constructed wetland (wetland plant layer is not marked);

FIG. 3 is a front view of the automatic aerator;

FIG. 4 is a top view of the automatic aerator;

wherein: 1. a main tank body; 2. a water inlet pipe; 3. a water delivery pipe; 4. a water collecting well; 5. a drain pipe; 6. a crushed stone packing layer; 7. a gravel packing layer; 8. a shale ceramsite packing layer; 9. a water collection pipe; 10. a vertical pressure pipe; 11. a spray head; 12. a water outlet hole; 13. an aquatic plant.

Detailed Description

In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention.

As shown in figures 1-4, an automatic improve device of subsurface wetland oxygen content of intaking, including main cell body (1), main cell body (1) top one end is equipped with inlet tube (2), and upper portion is equipped with drain pipe (5) in the other end, inlet tube (2) are equipped with multirow raceway (3) along length direction in proper order, raceway (3) are equipped with a plurality of vertical pressure pipes (10) along main cell body width direction, vertical pressure pipe (10) top is equipped with shower nozzle (11), shower nozzle (11) set up round apopore (12), according to on-the-spot water intake pressure, the fountain effect of setting up the round apopore is better, main cell body (1) is equipped with the packing layer, the packing layer sets gradually aquatic plant (13), 2-5 mm shale ceramsite packing layer (8), 5-10 mm gravel packing layer (7) and 10-15 mm rubble packing layer (6) from last extremely down, and a water collecting pipe (9) is arranged in the gravel packing layer (6), and a water collecting well (4) is arranged between the water collecting pipe (9) and the drain pipe (5).

The working method of the utility model is as follows: sewage passes through inlet tube (2) and gets into raceway (3), vertical pressure pipe (10) and shower nozzle (11) after, is and sprays the state and gets into the wetland, and then increases the contact time of intaking with the air, increases the water oxygen content, loops through aquatic plant (13) again, shale haydite packing layer (8), gravel packing layer (7), rubble packing layer (6), and the water after handling gets into collector pipe (9), flows into sump pit (4), and when the height of water level arrival drain pipe (5), the water discharges.

It is to be understood that no matter how much of this specification appears, such as in the prior art or common general knowledge. The present embodiment is only for illustrating the present invention and is not intended to limit the scope of the present invention, and modifications such as equivalent replacement made by those skilled in the art to the present invention are all considered to fall within the protection scope of the present invention.

Claims

1. The utility model provides an automatic improve undercurrent constructed wetland of intake oxygen content, includes main cell body (1), main cell body (1) is equipped with packing layer, its characterized in that: main cell body (1) top one end is equipped with inlet tube (2) that are linked together with external water source, and upper portion is equipped with drain pipe (5) in the other end, inlet tube (2) be equipped with multirow raceway (3) along length direction in proper order, raceway (3) are equipped with a plurality of vertical pressure pipes (10) along main cell body (1) width direction, vertical pressure pipe (10) top is equipped with loudspeaker form shower nozzle (11) that the opening is big-end-up.

2. The subsurface flow constructed wetland capable of automatically increasing the oxygen content of inlet water as claimed in claim 1, wherein: the water collecting tank is characterized in that a water collecting pipe (9) is arranged at the bottom of the filler layer, the water collecting pipe (9) is arranged along the length direction of the main tank body (1), a water collecting well (4) is arranged between the water collecting pipe (9) and the drain pipe (5), and one end of the water collecting pipe (9) penetrates through an end wall at one end of the water collecting well (4).

3. The subsurface flow constructed wetland capable of automatically increasing the oxygen content of inlet water as claimed in claim 1 or 2, wherein: the water inlet end of the water inlet pipe (2) is bent downwards to cross the end wall of the main tank body (1).

4. The subsurface flow constructed wetland capable of automatically increasing the oxygen content of inlet water as claimed in claim 2, wherein: the packing layer is sequentially provided with a shale ceramsite packing layer (8), a gravel packing layer (7) and a gravel packing layer (6) from top to bottom, and the water collecting pipe (9) is positioned in the gravel packing layer (6).

5. The subsurface flow constructed wetland capable of automatically increasing the oxygen content of inlet water as claimed in claim 4, wherein: the thickness of the shale ceramsite packing layer (8) is 2-5 mm, the thickness of the gravel packing layer (7) is 5-10 mm, and the thickness of the gravel packing layer (6) is 10-15 mm.