CN205442804U - Reoxygenation device of unpowered river surface water - Google Patents

Abstract

The utility model discloses a reoxygenation device for surface water in a non-powered river, which comprises an aqueduct, a shrinkage pipe and a discharge pipe, wherein the aqueduct is a pipeline with accommodating space that runs through the front and back, and the aqueduct is provided with a left The side plate, the bottom plate, the right side plate and the top plate, the front of the water guide pipe is provided with a water inlet, the water inlet is provided with a detachable grid, the detachable grid is adapted to the opening of the water inlet, Both sides of the detachable grid are respectively provided with a left connection hole and a right connection hole, the rear side of the water guide pipe is connected with the shrink tube, and the shrink tube is a horn-shaped structure, and its accommodating space gradually decreases, the other end of the shrink tube is connected to the drain pipe, and a foam buoyancy ring is arranged at the connection between the shrink tube and the drain pipe.

Description

A reoxygenation device for surface water in unpowered rivers

technical field

The utility model relates to the technical field of environmental protection water quality purification, in particular to a reoxygenation device for surface water of unpowered rivers.

Background technique

With the rapid development of my country's economy, the situation of environmental pollution is becoming more and more serious. Natural water bodies such as urban rivers and lakes are polluted to varying degrees, especially small and medium-sized water bodies have been in a state of eutrophication for a long time, and even black and odorous phenomena have seriously affected the lives of residents. and urban environment, restricting the construction of ecological cities. Urban polluted water bodies all show a common phenomenon, that is, the dissolved oxygen content is too low, even approaching zero. The dissolved oxygen in the water body is exhausted, so that aerobic microorganisms gradually lose their growth advantage, anaerobic microorganisms dominate, and the water body is in an anaerobic state. Odor, poor water quality.

The most direct measure to increase the dissolved oxygen content of the water body is to use the method of artificially filling the water body with air to make up for the lack of natural reoxygenation and accelerate the process of water reoxygenation to increase the dissolved oxygen level of the water body and restore and enhance the growth of aerobic microorganisms in the water body. Vitality, the pollutants in the water body can be purified, the environmental quality of the water body can be improved, and the water body ecosystem can be restored as soon as possible.

At present, domestic and foreign river and lake reoxygenation techniques and methods are mainly divided into dynamic type and engineering type. Dynamic reoxygenation is mainly an aeration system that fills water with air and pure oxygen. Including blower-microporous tube aeration system, pure oxygen-microporous tube aeration system, pure oxygen-mixed flow booster system, impeller suction push-flow aerator, underwater jet aeration equipment, etc. Engineering-type reoxygenation mainly includes the use of different forms of hydraulic structures, roughening of overflow dam surfaces of water and soil structures, contact oxidation permeable dams, falling water aeration and oxygenation and other hydraulic methods.

The pure oxygen aeration oxygen production equipment has a large proportion in the project investment, the equipment operation cost is also high, and the universality is poor. In the air aeration system, the oxygen transfer efficiency of the blower-microporous air pipe aeration system can reach 25-35% (water depth 5 meters), and it is widely used in the aerobic biochemical treatment of urban domestic sewage and industrial wastewater. The installation of the air distribution pipe requires a large amount of work, high precision requirements for horizontal positioning construction, difficult maintenance after damage, insufficient aeration power at low water levels, a large area occupied by the blower room, high noise, and high investment costs.

The working principle of the impeller suction plug-flow aerator is to form a negative pressure in the air intake channel through the impeller rotating at high speed underwater, and the air enters the water through the air intake hole, but the operation noise is large, and the impeller is easily blocked and entangled. affect shipping.

Underwater jet aeration equipment. It utilizes the submersible pump to push out the water from the pump body at high speed, and the water ejector installed on the water outlet pipe sucks in the air, and the air-water mixture enters the water body after being hydraulically mixed and cut, but the maintenance is troublesome and the noise is relatively large.

To sum up, traditional dynamic reoxygenation has high efficiency, but it mainly faces the following problems during operation: high energy consumption, easy to produce secondary pollution, affect water temperature, and generate noise. The operation cost is expensive, the mobility is poor, and the equipment maintenance is cumbersome and inconvenient. Therefore, how to economically, energy-saving, and effectively increase the dissolved oxygen content in water without causing secondary pollution is a key issue for improving surface water quality.

Utility model content

In view of the deficiencies of the prior art above, the utility model provides a reoxygenation device for surface water of unpowered rivers, which is economical, energy-saving, and effectively increases the dissolved oxygen content in water without causing secondary pollution.

In order to solve the above-mentioned technical problems, the utility model scheme includes:

A device for reoxygenation of surface water in unpowered rivers includes a water guide pipe, a shrinkage pipe, and a drain pipe, wherein the water guide pipe is a pipe with an accommodating space that runs through the front and back, and the water guide pipe is provided with a left side plate, a bottom plate, On the right side plate and the top plate, a water inlet is arranged on the front of the water guide pipe, and a detachable grid is arranged on the water inlet, and the detachable grid is adapted to the opening of the water inlet. Both sides of the grid are respectively provided with a left connection hole and a right connection hole, the rear side of the water guide pipe is connected with the shrink tube, and the shrink tube is a trumpet-shaped structure, and its accommodation space gradually decreases, so The other end of the shrink tube is connected to the drain pipe, a foam buoyancy ring is arranged at the joint between the shrink tube and the drain pipe, a plurality of drain holes are arranged around the drain pipe, and the drain pipe The tail end is provided with a water outlet, and the drain pipe is a thin pipe.

The reoxygenation device for the surface water of the unpowered river, wherein the diameter of the aqueduct is 50 cm, and the diameter of the discharge pipe is 10 cm.

The reoxygenation device for surface water of unpowered rivers, wherein, there are three connecting holes on the left side and three connecting holes on the right side.

The utility model provides a reoxygenation device for surface water in unpowered rivers. Through the arrangement of aqueducts, shrinkage pipes and drain pipes in the reoxygenation device for surface water, energy consumption can be effectively reduced, and the reoxygenation of surface water in unpowered rivers can be effectively reduced. The oxygen device has a simple structure, is convenient for installation and maintenance, saves capital costs, effectively achieves the reoxygenation effect, and has high universality.

Description of drawings

Fig. 1 is the structural representation of the surface water reoxygenation device in the utility model.

Fig. 2 is the top view of the surface water reoxygenation device in the utility model.

Fig. 3 is the front view of the surface water reoxygenation device in the utility model.

Fig. 4 is a working principle diagram of the surface water reoxygenation device in multiple connection states in the utility model.

detailed description

The utility model provides a reoxygenation device for unpowered river surface water. In order to make the purpose, technical scheme and effect of the utility model clearer and clearer, the utility model will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The utility model provides a reoxygenation device for surface water in unpowered rivers. Fig. 1 is a structural schematic diagram of the surface water reoxygenation device in the utility model, and Fig. 2 is a top view of the surface water reoxygenation device in the utility model, and Fig. 3 It is the front view of the surface water reoxygenation device in the utility model, and Fig. 4 is a working principle diagram under multiple connection states of the surface water reoxygenation device in the utility model, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4 As shown, the surface water reoxygenation device includes a left connecting hole 1, a right connecting hole 2, a detachable grid 3, a left plate 4, a bottom plate 5, a right plate 6, a top plate 7, a shrink tube 8, a foam buoyancy Ring 9, drain pipe 10, drain hole 11, water outlet 12, water inlet 13 and aqueduct 14, formed by the left side plate 4, the bottom plate 5, the right side plate 6, the top plate 7 One has an accommodating space as a water guide pipe 14, the front of the water guide pipe 14 is provided with the water inlet 13, and the water inlet 13 is provided with a detachable grid 3, and the detachable grid 3 is detachable. The design is easy to clean and maintain. The detachable grid 3 can intercept obstructions in the upper reaches of the surface water river, preventing objects from entering the water inlet 13 from blocking the pipeline behind. The detachable grid 3 and the water inlet 13 openings, three connection holes are respectively provided on both sides of the detachable grid 3, which are respectively the left connection hole 1 and the right connection hole 2, and the left connection hole 1 and the The connecting hole 2 on the right side is used to connect the surface water reoxygenation device in parallel, the aqueduct 14 runs through front and back, and the rear side of the aqueduct 14 communicates with the shrink tube 8, and the shrink tube 8 is a trumpet-shaped structure , its accommodating space gradually decreases, the other end of the shrink tube 8 is connected to the drain pipe 10, and a foam buoyancy ring 9 is set at the connection between the shrink tube 8 and the drain pipe 10, and the foam buoyancy The ring 9 can make the tail of the surface water reoxygenation device float or suspend on the river surface. The surroundings of the drain pipe 10 are provided with a plurality of drain holes 11, the tail end of the drain pipe 10 is provided with the water outlet 12, the drain pipe 10 is a thin tube, and the tube of the drain pipe 10 The wall is designed to be porous, which is conducive to the scattering of water flow to the surroundings, so as to fully stir the surrounding water body.

The surface water reoxygenation devices are arranged in parallel in a row in the river channel, as shown in Figure 4, the river flows into the water inlet 13, and the volume decreases rapidly when the water guide pipe 14 enters the shrink tube 8, and the The surface water reoxygenation device uses natural river water to flow along the course and converts water potential energy into kinetic energy. The local surface water reoxygenation device speeds up the water flow to increase the kinetic energy of the water body under the limitation of the physical structure from wide to narrow space. The water body at the water outlet presents a turbulent agitation effect, achieving the expected effect of recovering dissolved oxygen in the water body without power.

A more preferred solution is that the diameter of the water guide pipe 14 is 50 cm, and the diameter of the drain pipe 10 is 10 cm, that is, the change of the diameter makes the river water passing through it change from the water inlet sectional area to the water outlet sectional area ratio, that is, the The water section is reduced by about 25 minutes, thereby increasing the kinetic energy of the outlet water, greatly increasing the kinetic energy of the water flowing out of the device, and draining water through the water outlet 12 and the water discharge hole 11, and the water flow is ejected from multiple angles, continuously impacting the surrounding water body , increase the turbulence disturbance effect of the river surface, make the surface oxygen-enriched water layer in contact with the atmosphere interface fully mix with the lower water body, quickly transfer the dissolved oxygen in the water body to the lower water layer of the river, and achieve the purpose of increasing the overall dissolved oxygen content of the river water body, and then It can accelerate the self-purification ability of water body.

A more preferred solution is that the left connection hole 1 and the right connection hole 2 provided by the surface water reoxygenation device are convenient for a single surface water reoxygenation device to be combined in parallel. When connecting, only one hole is connected horizontally to make the two surface water reoxygenation devices The oxygen device can be connected, and it is not fixed relatively. In this way, under the action of the turbulence of the water flow, each of the surface water reoxygenation devices can shake up and down with the river, which is more conducive to the agitation and mixing of the water flow at the outlet; multiple surface water reoxygenation devices After the device is connected, a large cross-sectional area of water can be obtained and any structural combination can be obtained, so as to improve and optimize the water flow into the "shrinking structure" at the cross-section of the natural river and the water output efficiency.

With the flow of river water, the tail of the surface water reoxygenation device floats up and down, so that the surface water body is fully agitated, the time of contact with the atmosphere is increased, and the turbulence of the water body is intensified. Underwater diffusion, another part of the gas that has not formed dissolved oxygen will be released back into the atmosphere. In this interaction, the dissolved oxygen concentration of surface water and rivers is continuously replenished, but it does not require any additional power input to maintain the above process, only relying on The river water potential acts as the source driving force.

Of course, the above descriptions are only preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments. It should be noted that any person skilled in the art can make all Equivalent substitutions and obvious deformation forms all fall within the essential scope of this specification and should be protected by the utility model.

Claims (3)

1. null1. the reoxygenation device of a unpowered river surface water，Including aqueduct、Collapsible tube、Tapping pipe，It is characterized in that，Described aqueduct is one to be had and accommodates pipeline through before and after space，It is provided with left plate on described aqueduct、Base plate、Right plate and top board，The front of described aqueduct is provided with a water inlet，A detachable aperture plate it is provided with on described water inlet，Described detachable aperture plate is suitable with described water inlet opening，Left side connecting hole and right side connecting hole it is respectively arranged with in the both sides of described detachable aperture plate，The rear side of described aqueduct is connected with described collapsible tube，Described collapsible tube is flared structure，It accommodates space and is gradually reduced，The described collapsible tube other end is connected with described tapping pipe，Described collapsible tube is provided with foam buoyancy circle with the junction of described tapping pipe，The surrounding of described tapping pipe is provided with multiple spilled water hole，The tail end of described tapping pipe is provided with outlet，Described tapping pipe is tubule.
2. The reoxygenation device of the most unpowered river surface water, it is characterised in that a diameter of 50cm of described aqueduct, a diameter of 10cm of described tapping pipe.
3. The reoxygenation device of the most unpowered river surface water, it is characterised in that it is three with described right side connecting hole that described left side connecting hole is three.