CN219079253U

CN219079253U - Efficient nano aeration plug flow system in urban river

Info

Publication number: CN219079253U
Application number: CN202222781212.0U
Authority: CN
Inventors: 袁驰; 刘启轩
Original assignee: Wuxi Jinjie Environmental Protection Technology Co ltd
Current assignee: Wuxi Jinjie Environmental Protection Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-05-26
Anticipated expiration: 2032-10-21

Abstract

The application relates to an urban river internal high-efficiency nano aeration plug flow system, which relates to the field of river management. The device comprises a tubular aeration part, a box-type aeration part and a control cabinet, wherein the tubular aeration part is arranged at the positions, close to the revetment, of the two sides in the river channel, and is used for aerating and oxygenating the areas of the two sides in the river channel; the box-type aeration part is arranged at the center position in the river channel and is used for aerating and oxygenating the center area in the river channel; the control cabinet is arranged on the revetment and connected with the tubular aeration part and the box-type aeration part; wherein, tubular aeration portion and box aeration portion all are located the below of river course water line. Through arranging the tubular aeration parts in the two side areas in the river course, the box type aeration parts are arranged in the central area of the river course, the problem of aeration blind areas in river course treatment is solved, the water body in the river course is fully mixed, the dissolved oxygen is uniformly distributed, and the running time of the high-efficiency nano aeration plug flow system in the urban river course is greatly reduced compared with that of the existing aeration equipment in the market, and the energy consumption is obviously improved.

Description

Efficient nano aeration plug flow system in urban river

Technical Field

The application relates to the technical field of river management, in particular to an efficient nano aeration plug flow system in an urban river.

Background

In the current urban river treatment, the dissolved oxygen in the river water body is greatly increased by using a strong aeration mode, so that the self-absorption capacity of the river on external pollution is improved. Among the four aeration devices commonly used in the market are a disk aerator (aeration disk), a tube aerator (aeration pipe), a swirl aerator, and a jet aerator.

In the related art, the disc type aerator generally comprises an aeration disc, a main pipe at the bottom of the tank, a branch pipe, a pipeline support, an expansion joint, a water removal system and the like, and meanwhile, a blower and a corresponding pipeline system are matched, and a large number of tiny bubbles are generated through micropores on the surface of the aeration disc, so that the oxygen transfer efficiency is improved.

The tubular aerator consists of aeration membrane, support pipe and air pipeline, and the air enters the aeration pipe from its air hole, and the wall of the aeration pipe has many fine pores, so that the air inside the pipe diffuses out from the pores of the pipe wall under the action of pressure difference to form many tiny bubbles in sewage and form turbulent flow, so as to dissolve oxygen in the air into water.

The cyclone aerator is integrally in a barrel-shaped structure, and the barrel comprises a wind pipe orifice, rotary cutting sheets and a cutting component. When the device works, the air pipe outlet sprays high-flow-rate air to roll up bottom water, the air-water mixed flow can form two fluids with different directions through the crossed rotary cutting sheets, the two fluids continuously collide with the cutting part in the rising process, and finally tiny bubbles are generated to achieve the effect of oxygenation of the water body.

The jet aerator is an aeration device adopting the Venturi jet principle, has various forms, is almost free of blockage compared with other aeration devices such as microporous aeration, submerged aeration, surface aerator and the like, can be basically maintenance-free in the service life, and can form vacuum when liquid flowing at high speed passes through a gas mixing chamber by spraying liquid from a nozzle at high speed under the high-speed rotation of a pump impeller, a large amount of air is sucked into the gas mixing chamber by an air duct, and is mixed with the liquid vigorously at a throat pipe to form a gas-liquid mixture which is discharged by a diffusion pipe, and the air rises in a water body in tiny bubbles to form efficient mass transfer in the whole process.

The Chinese patent document with the publication number of CN210944993U discloses an aeration device for bioremediation of a black and odorous river channel, and specifically describes an aeration device which is mainly arranged at the bottom of the river channel, wherein an aeration pipe is arranged at the bottom of the river channel for air supply through a submerged fan, and the problems of sludge at the bottom of the river channel are considered, aeration bubbles at the bottom of the device rise slowly, disturbance of bottom sludge is weakened to some extent, and phenomenon that sludge turns up in the river channel is lightened, however, when the device supplies air, water in the river channel does not obtain enough driving force from the aeration device, actual fluidity of the water is not changed, and the water is not fully mixed and dissolved oxygen is unevenly distributed.

The Chinese patent document with the publication number of CN208916919U discloses a solidifying microorganism reaction device for river treatment, and specifically describes a box type aeration device which carries out denitrification reaction through nodes formed in an aerator and a microorganism solidifying device so as to remove total nitrogen in a river; however, under the condition that denitrification is successfully carried out, the actual dissolved oxygen in the water body needs to be controlled at about 0.2mg/L, which also means that the dissolved oxygen in the part is extremely low, peculiar smell can be generated even when the part is contacted with the pollutant difficult to degrade, and meanwhile, animals and plants in the river channel can be influenced to a certain extent, so that the ecological stability of the river channel is not facilitated.

Therefore, the aeration equipment in the related art has the problem of aeration blind areas in urban river management, so that the water body in the river cannot be fully mixed, the dissolved oxygen is unevenly distributed, and the energy consumption of the aeration equipment in the related art is higher.

Disclosure of Invention

The purpose of the application is to provide a high-efficient nanometer aeration plug flow system in urban river course to solve the problem that above-mentioned prior art exists.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

an efficient nano-aeration plug flow system in an urban river, comprising:

the tubular aeration part is arranged at the positions, close to the revetments, of the two sides in the river channel and is used for aerating and oxygenating the areas of the two sides in the river channel;

the box-type aeration part is arranged at the central position in the river channel and is used for aerating and oxygenating the central area in the river channel;

the control cabinet is arranged on the revetment and connected with the tubular aeration part and the box-type aeration part;

the tubular aeration part and the box-type aeration part are all positioned below a river channel water level line;

the box-type aeration part comprises a plurality of main boxes which are uniformly distributed at intervals along the center in a river channel, the main boxes are in a box shape with upper and lower openings, a second oxygenation aeration pipe and a second submerged fan are installed at the bottom of the main boxes, the output end of the second submerged fan is communicated with the second oxygenation aeration pipe, the second oxygenation aeration pipe is connected with the bottom of the main boxes through a plurality of fixing support rods, and the second submerged fan is connected with the control cabinet.

Through adopting above-mentioned technical scheme, arrange tubular aeration portion in the river course both sides region, the box aeration portion of cooperation river course central region arrangement has solved the aeration blind area problem that exists in the river course treatment, makes the water in the river course obtain abundant mixing, dissolved oxygen distributes evenly to this high-efficient nanometer aeration plug flow system operating time in the city river course compares in market current aeration equipment and reduces by a wide margin, promotes in the aspect of the energy consumption obviously.

In one possible implementation manner, the tubular aeration portion includes a first submerged fan and a first oxygenation aeration pipe, the first submerged fan is fixed in the river course through the fixing frame, the output end of the first submerged fan is communicated with the first oxygenation aeration pipe through a fan communicating pipe, the first oxygenation aeration pipe is arranged along the revetment, and the first submerged fan is connected with the control cabinet.

By adopting the technical scheme, aeration oxygenation for the two side areas in the river channel is realized.

In one possible implementation, the second oxygen-enriched aeration tube has a serpentine shape.

By adopting the technical scheme, the aeration area of the box-type aeration part is increased, and the aeration efficiency is improved.

In one possible implementation, a steel wire mesh is mounted on top of the main tank.

By adopting the technical scheme, the large aquatic animals are prevented from entering the main box body, and the normal work of the box-type aeration part is influenced.

In one possible implementation, the main tank is fixedly connected to the revetment through a plurality of steel wires.

By adopting the technical scheme, the main box body can be fixed in a river channel.

In one possible implementation manner, one end of the first oxygenation aeration pipe is communicated with the output end of the first submerged fan, and a first plug is installed at the other end of the first oxygenation aeration pipe.

By adopting the technical scheme, the first oxygenation aeration pipe can not leak air, and air is discharged from a plurality of aeration holes at the top.

In one possible implementation manner, one end of the second oxygenation aeration pipe is communicated with the output end of the second submerged fan, and a second plug is installed at the other end of the second oxygenation aeration pipe.

By adopting the technical scheme, the second oxygenation aeration pipe can not leak air, and the air is discharged from a plurality of aeration holes at the top.

The beneficial effects that this application provided technical scheme brought include at least:

the box-type aeration part is simple and convenient to assemble, the installation process is simplified, the transportation and the installation are convenient, meanwhile, the four-side closed structure can enable the serpentine-shaped second oxygenation aeration pipe arranged at the bottom to form surrounding air flow, the whole river section can flow uniformly, and the dissolved oxygen concentration can be improved; and the tubular aeration parts are arranged in the two side areas in the river channel, so that the occurrence of an aeration blind area of water in the river channel is avoided, and meanwhile, under the condition of ensuring the same concentration of dissolved oxygen, the system operation time is greatly reduced compared with that of the existing aeration equipment in the market, and the energy consumption is obviously improved.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the embodiments of the application, and not constitute a limitation to the application. In the drawings:

FIG. 1 is a schematic diagram of a front view of a system for efficient nano-aeration and plug-flow in a city river according to an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic top view of a system for efficient nano-aeration and plug flow in a city river according to an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a main tank of a high-efficiency nano-aeration plug-flow system in an urban river according to an exemplary embodiment of the present application;

FIG. 4 shows a schematic structural diagram of a second aeration pipe and a second submerged fan of a high-efficiency nano-aeration plug flow system in an urban river according to an exemplary embodiment of the present application;

in the figure:

1. a tubular aeration section; 2. a box-type aeration part; 3. a control cabinet; 4. along the revetment of the river; 5. river channel water level line;

101. a first submerged fan; 102. a fixing frame; 103. a fan communicating pipe; 104. a first oxygenation aeration pipe; 105. a first plug;

201. a main case; 202. a second oxygenation aeration pipe; 203. a second submerged fan; 204. a steel wire dense net; 205. fixing the support rod; 206. a wire rope; 207. and a second plug.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in drawings of the present specification, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, a specific component. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present specification, the meaning of "plurality" is two or more.

The present application is further described below with reference to the drawings and examples.

First, the terms involved in the embodiments of the present application will be briefly described:

submerged fan, fully called: the submerged blower or submerged Roots blower is a submerged blower or submerged blower, which may also be referred to as a submerged blower. The novel sewage treatment device is mainly used for municipal river rehabilitation, sewage treatment, oxygenation and aeration for biological bacteria, and is low in noise, simple to install and long in maintenance period, and a wind machine room is not required to be built.

The aeration pipe is a dissolved oxygen nano aeration pipe and is characterized by opening and closing, small holes and small bubbles. The air is pressurized by the submerged fan, so that the aeration pipe is uniformly expanded and reaches a design value, a large number of micro bubbles (the diameter is 20-30 um) emerge from the pipe wall, the water is in a smog floating state, the rising speed is extremely slow, the oxygen dissolving effect is obvious, the oxygen content in the water is greatly improved, the fluidity of the water is increased, and the cultivation density is improved.

Example 1

Fig. 1 and fig. 2 respectively show a front view and a top view structural schematic diagram of an efficient nano aeration plug flow system in a city river according to an exemplary embodiment of the present application, where the efficient nano aeration plug flow system in a city river includes a tubular aeration portion 1, a box aeration portion 2 and a control cabinet 3, the tubular aeration portion 1 is installed at positions on two sides of the interior of the river, which are close to a revetment 4, and performs aeration oxygenation on two side regions of the interior of the river; the box-type aeration part 2 is arranged at the center position in the river channel and is used for aerating and oxygenating the center area in the river channel; the control cabinet 3 is arranged on the revetment 4 and is connected with the tubular aeration part 1 and the box-type aeration part 2; wherein, tubular aeration portion 1 and box aeration portion 2 are all located the below of river course water line 5.

In this application embodiment, through arranging tubular aeration portion 1 in the river course both sides regional, the box aeration portion 2 of cooperation river course central zone arrangement has solved the aeration blind area problem that exists in the river course treatment, makes the water in the river course obtain abundant mixing, dissolved oxygen evenly distributed to the operating time of this urban river course internal high-efficient nanometer aeration plug flow system compares existing aeration equipment in the market and reduces by a wide margin, promotes in the aspect of the energy consumption obviously.

In the embodiment of the application, the power supply and control are performed on the tubular aeration portion 1 and the box-type aeration portion 2 through the control cabinet 3.

Preferably, the box aeration section 2 is installed at 0.5-3m under water.

Example two

In an alternative embodiment, referring to fig. 1 and 2, a tubular aeration portion 1 includes a first submerged fan 101 and a first aeration pipe 104, the first submerged fan 101 is fixed in a river channel through a fixing frame 102, an output end of the first submerged fan 101 is communicated with the first aeration pipe 104 through a fan communicating pipe 103, the first aeration pipe 104 is arranged along a revetment 4, and the first submerged fan 101 is connected with a control cabinet 3.

In this embodiment of the application, the position that both sides are close to revetment 4 in the river course is all symmetrical to have arranged first oxygenation aeration pipe 104, and the length of arranging of first oxygenation aeration pipe 104 is nimble to be adjusted according to the actual operating mode. Wherein, one end of first oxygenation aeration pipe 104 communicates with the output of first submerged fan 101, and first end cap 105 is installed to the other end, makes first oxygenation aeration pipe 104 can not leak gas, and gas all is discharged from a plurality of aeration holes at top.

In one example, the mount 102 is built from DN50 galvanized steel pipes.

In one example, the diameter of first oxygen-enriched aeration tube 104 is 80mm.

In one example, the first oxygen aeration pipe 104 is divided into a plurality of sections of oxygen aeration pipes with 2m, and an air supply branch pipe is connected between every two sections of oxygen aeration pipes, the length of the air supply branch pipe is 3m, and the air supply branch pipe is a PPR pipe with DN 63.

Referring to fig. 3 and 4, the box-type aeration portion 2 includes a plurality of main boxes 201 uniformly spaced along the center in the river channel, the main boxes 201 are in a box shape with upper and lower openings, a second aeration pipe 202 and a second submerged fan 203 are installed at the bottom of the main boxes 201, the output end of the second submerged fan 203 is communicated with the second aeration pipe 202, the second aeration pipe 202 is fixedly connected with the bottom of the main boxes 201 through a plurality of fixing struts 205, and the second submerged fan 203 is connected with the control cabinet 3. The second aeration tube 202 has a serpentine shape.

In this embodiment, since the main tank 201 is in a tank shape with an upper opening and a lower opening, when the second submerged fan 203 at the bottom is started, the second aeration pipe 202 with a serpentine shape forms a surrounding air flow on the section of the river channel after aeration, and the water in the region is guided to be fully mixed. Wherein, one end of the second aeration pipe 202 is communicated with the output end of the second submerged fan 203, and a second plug 207 is arranged at the other end, so that the second aeration pipe 202 can not leak air, and air is discharged from a plurality of aeration holes at the top.

In this embodiment of the application, a plurality of main boxes 201 are arranged at intervals along the arrangement direction of the first oxygenation aeration pipes 104 in the center of the river channel, and the specific number and the interval distance of the main boxes 201 can be flexibly adjusted according to actual working conditions. The main box 201 can be divided into four plates, and assembled on the construction site, so that the installation process is simplified, and the transportation and the installation are convenient.

Example III

In an alternative embodiment, referring to fig. 3, a wire mesh 204 is mounted on top of the main housing 201. Referring to fig. 1 and 2, the outer wall of the main box 201 is fixedly connected to the revetment 4 through a plurality of steel cables 206.

In the embodiment of the application, the arrangement of the steel wire dense net 204 at the top of the main tank 201 can prevent large aquatic animals from entering the main tank 201 to influence the normal operation of the box-type aeration portion 2.

In this embodiment, two side walls of the main box 201 facing to the revetments 4 at two sides are fixed to the revetments 4 through two steel wire ropes 206 respectively, the connection mode of the steel wire ropes 206 and the main box 201 can be achieved by welding fasteners on the main box 201, and then the steel wire ropes 206 are wound on the fasteners; the connection between the wire 206 and the revetment 4 can be fixed by expansion screws. Further, the main casing 201 can be fixed in the river.

Next, an operation principle of the efficient nano aeration plug flow system in the urban river according to the embodiment of the present application will be described.

After the first submerged fan 101 and the second submerged fan 203 are controlled to be started by the control cabinet 3, the first oxygenation aeration pipe 104 starts aeration to oxygenate the two side areas in the river channel; meanwhile, the second oxygenation aeration pipe 202 starts aeration, the main box 201 with the four-side closed upper and lower opening structure can enable the serpentine second oxygenation aeration pipe 202 arranged at the bottom to form surrounding air flow, so that the whole river section can flow uniformly, the concentration of dissolved oxygen can be improved, and oxygenation of the central area in the river is realized; after the two are matched, the water body in the river channel is prevented from generating an aeration blind area, and meanwhile, under the condition of ensuring the same concentration of dissolved oxygen, the system operation time is greatly reduced compared with the prior aeration equipment in the market, and the energy consumption is obviously improved.

In summary, the box-type aeration part provided by the application is simple and convenient to assemble, the installation process is simplified, the transportation and the installation are convenient, meanwhile, the four-side closed structure can enable the serpentine-shaped second oxygenation aeration pipe arranged at the bottom to form surrounding air flow, the whole river section can be guaranteed to flow uniformly, and the dissolved oxygen concentration can be improved; and the tubular aeration parts are arranged in the two side areas in the river channel, so that the occurrence of an aeration blind area of water in the river channel is avoided, and meanwhile, under the condition of ensuring the same concentration of dissolved oxygen, the system operation time is greatly reduced compared with that of the existing aeration equipment in the market, and the energy consumption is obviously improved.

In the embodiments disclosed herein, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing is merely a preferred embodiment of the present application, and it should be noted that: it will be apparent to those skilled in the art that numerous modifications and variations can be made thereto without departing from the principles of the present application, and such modifications and variations are to be regarded as being within the scope of the application.

Claims

1. An efficient nano-aeration plug flow system in an urban river, which is characterized by comprising:

the tubular aeration part (1) is arranged at the positions, close to the revetments (4), of the two sides in the river channel and is used for aerating and oxygenating the areas of the two sides in the river channel;

the box-type aeration part (2) is arranged at the central position in the river channel and is used for aerating and oxygenating the central area in the river channel;

the control cabinet (3) is arranged on the revetment (4) and is connected with the tubular aeration part (1) and the box-type aeration part (2);

the tubular aeration part (1) and the box-type aeration part (2) are positioned below a river channel water line (5);

the box type aeration part (2) comprises a plurality of main boxes (201) which are uniformly distributed at intervals along the center in a river channel, the main boxes (201) are in a box shape with upper and lower openings, a second oxygenation aeration pipe (202) and a second submerged fan (203) are arranged at the bottom of the main boxes (201), the output end of the second submerged fan (203) is communicated with the second oxygenation aeration pipe (202), the second oxygenation aeration pipe (202) is connected with the bottom of the main boxes (201) through a plurality of fixing support rods (205), and the second submerged fan (203) is connected with the control cabinet (3).

2. The urban river internal high-efficiency nano aeration plug flow system according to claim 1, wherein the tubular aeration portion (1) comprises a first submerged fan (101) and a first oxygenation aeration pipe (104), the first submerged fan (101) is fixed in the river through a fixing frame (102), the output end of the first submerged fan (101) is communicated with the first oxygenation aeration pipe (104) through a fan communicating pipe (103), the first oxygenation aeration pipe (104) is arranged along a revetment (4), and the first submerged fan (101) is connected with the control cabinet (3).

3. The urban river internal high efficiency nano-aeration plug flow system according to claim 1, wherein said second aeration tube (202) is serpentine in shape.

4. The urban river internal high-efficiency nano-aeration plug flow system according to claim 1, wherein the top of the main box body (201) is provided with a steel wire dense net (204).

5. The urban river internal high-efficiency nano-aeration plug flow system according to claim 1, wherein the main box body (201) is fixedly connected with the revetment (4) through a plurality of steel wire ropes (206).

6. The urban river internal high-efficiency nano-aeration plug flow system according to claim 2, wherein one end of the first oxygenation aeration pipe (104) is communicated with the output end of the first submerged fan (101), and a first plug (105) is arranged at the other end of the first oxygenation aeration pipe.

7. The urban river internal high-efficiency nano-aeration plug flow system according to claim 1, wherein one end of the second oxygenation aeration pipe (202) is communicated with the output end of the second submerged fan (203), and a second plug (207) is arranged at the other end of the second oxygenation aeration pipe.