CN215924512U - Floating ball intermittent aeration device - Google Patents

Abstract

The utility model discloses a floating ball intermittent aeration device which comprises a gas collection box and a floating ball assembly, wherein a gas distribution inner box is arranged at the bottom in the gas collection box, a top cover is arranged at an open position of the top surface of the gas collection box, the inner top wall of the top cover is of a cross structure, and the floating ball assembly is arranged in the middle in the gas collection box. The utility model can provide intermittent aeration through the matching use of all components, has better scrubbing effect on the MBR membrane wires than the traditional continuous aeration, and has the advantages of uniform gas discharge in the aeration process and better inhibition on the adsorption and aggregation speed of pollutants on the surface of the membrane wires in the operation process of the MBR.

Description

Floating ball intermittent aeration device

Technical Field

The utility model relates to the technical field of sewage treatment aeration, in particular to a floating ball intermittent aeration device.

Background

MBR membrane elements are important parts in current sewage treatment systems, and the separation objects of the MBR membrane elements are generally high-pollution sewage containing more organic matters and inorganic matters. Although a pretreatment process is added to the front section of the MBR membrane process, the membrane flux is reduced due to membrane pollution after long-term use, and the water yield is directly reduced. In order to control the formation rate of membrane pollution, the scrubbing effect of the MBR membrane aeration device on membrane filaments is very important.

The traditional membrane aeration device forms uninterrupted air supply through the aeration branch pipe connected with the main aeration pipe, finally, the air is discharged through the aeration small holes uniformly distributed on the aeration branch pipe, the discharged air forms bubbles with different sizes, the bubbles rise from the bottom of the membrane under the action of buoyancy to become large, the bubbles collide and rub with the membrane wires in the rising process, and the dirt attached to the surface of the membrane wires is removed when water is produced.

Most of aeration systems used in the MBR sewage treatment process are continuous aeration, the aeration intensity is adjusted through the aeration air quantity, the aeration scrubbing effect is poor in the aeration mode, the energy consumption is high, and a new aeration system is urgently needed to replace the aeration system.

Disclosure of Invention

The utility model aims to provide a floating ball intermittent aeration device to solve the technical problem.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a floater intermittent type aeration equipment, includes gas collection box, floater subassembly, the bottom is equipped with distribution inner box in the gas collection box, the uncovered department of top surface of gas collection box is equipped with the top cap, the roof is equipped with cross structure in the top cap, the middle part is equipped with the floater subassembly in the gas collection box.

Preferably, the bottom of the two side faces of the gas collection box is provided with a pair of limiting grooves, the bottom of the two side faces of the gas distribution inner box is provided with a pair of limiting convex plates, and each limiting convex plate is fixedly connected with the corresponding limiting groove in a clamping manner.

Preferably, the top of each limiting convex plate is provided with a circular air inlet, an air inlet pipe is inserted into the circular air inlet, and the inner end of each air inlet pipe extends into the air distribution inner box.

Preferably, a pair of liquid injection holes are formed in the bottoms of the front face and the rear face of the gas collection box, and a pair of aeration small holes are formed in the bottoms of the front face and the rear face of the gas distribution inner box.

Preferably, a pair of rectangular through holes is formed in the front side and the rear side of the top surface of the top cover, four corners of the cross structure are respectively communicated with the corresponding rectangular through holes, and a communicating hole is formed in the middle of the cross structure.

Preferably, the floating ball assembly comprises a floating plate and rectangular floating balls, the floating plate is arranged in the middle of the gas collection box, a round step is arranged in the middle of the top surface of the floating plate and matched with the round step to abut against the inside of the communicating hole, and a pair of rectangular floating balls are arranged at two ends of the floating plate.

Preferably, both sides wall of gas collection tank all is equipped with a pair of slide, every the equal slip block of rectangle floater is between a pair of slide that corresponds.

The utility model has the beneficial effects that:

1. in the utility model, by the matching use of the floating ball component, the rectangular floating ball and the floating plate slide up and down along with the change of the liquid level, so that the circular step is conveniently driven to be matched with the communicating hole for plugging, thereby realizing the intermittent aeration and improving the aeration effect of sewage treatment;

2. in the utility model, through the design of the small aeration holes on the gas distribution inner box and the liquid injection holes on the gas collection box, the whole aeration process can be accelerated, so that sewage can flow rapidly, and the efficiency of forming aeration bubbles is improved;

in conclusion, the utility model provides intermittent aeration through the matching of the components, the scrubbing effect on the MBR membrane wires is better than that of the traditional continuous aeration, the homogenization enables the gas to be discharged in the aeration process, and the adsorption and aggregation speed of pollutants on the surface of the membrane wires in the operation process of the MBR can be more uniformly and better inhibited.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic view of the structure of the gas collection box of the present invention;

FIG. 4 is a schematic view of the top cover structure of the present invention;

FIG. 5 is a schematic view of the construction of the float ball assembly of the present invention;

FIG. 6 is a schematic structural diagram of an air distribution inner box of the present invention;

FIG. 7 is a schematic view of the gas distribution inner box structure of the present invention;

reference numerals: 1. a gas collection tank; 2. a limiting groove; 3. a liquid injection hole; 4. a slide plate; 5. a top cover; 6. a cross structure; 7. a rectangular through hole; 8. a communicating hole; 9. distributing the gas in the inner box; 10. a limiting convex plate; 11. an air inlet pipe; 12. aerating pores; 13. a buoyancy plate; 14. a round step; 15. the rectangle floater.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

Examples

As shown in fig. 1-7, a floating ball intermittent aeration device comprises a gas collection tank 1 and a floating ball assembly, wherein the gas collection tank 1 is in a rectangular box shape with an upper opening and a lower opening, the bottom of the gas collection tank 1 is arranged on the bottom surface in a sewage tank, a gas distribution inner tank 9 is arranged at the bottom in the gas collection tank 1, a top cover 5 is arranged at an open top surface of the gas collection tank 1, a cross structure 6 is arranged on the top wall in the top cover 5, and the floating ball assembly is arranged in the middle in the gas collection tank 1.

In the utility model, the bottom of two side surfaces of the gas collection box 1 is provided with a pair of limiting grooves 2, the bottom of two side surfaces of the gas distribution inner box 9 is provided with a pair of limiting convex plates 10, and each limiting convex plate 10 is fixedly connected with the corresponding limiting groove 2 in a clamping manner, thereby increasing the connection stability of the gas collection box 1 and the gas distribution inner box 9.

In the utility model, the top of each limit convex plate 10 is provided with a circular air inlet, an air inlet pipe 11 which is fixedly connected in a penetrating way is inserted into the circular air inlet, the inner end of each air inlet pipe 11 extends into the air distribution inner box 9, and the air is convenient to enter the air distribution inner box 9 through the air inlet pipe 11.

In the utility model, the bottoms of the front and the back surfaces of the gas collecting box 1 are respectively provided with a pair of liquid injection holes 3, the bottoms of the front and the back surfaces of the gas distribution inner box 9 are respectively provided with a pair of aeration small holes 12, and the heights of the aeration small holes 12 are higher than the heights of the liquid injection holes 3, so that the whole aeration process can be accelerated by the design of the aeration small holes 12 on the gas distribution inner box 9 and the liquid injection holes 3 on the gas collecting box 1.

In the utility model, a pair of rectangular through holes 7 are respectively formed in the front side and the rear side of the top surface of the top cover 5, four corners of the cross structure 6 are respectively communicated with the corresponding rectangular through holes 7, a communication hole 8 is formed in the middle of the cross structure 6, four exhaust channels are arranged in the cross structure 6, each exhaust channel is communicated with the corresponding rectangular through hole 7, gas discharged through the aeration small holes 12 enters the cross structure 6 through the communication hole 8 and then is discharged through the rectangular through holes 7.

In the utility model, the floating ball component comprises a floating plate 13 and rectangular floating balls 15, the middle part in the gas collection box 1 is provided with the floating plate 13 which is transversely placed, the middle part of the top surface of the floating plate 13 is provided with a round step 14, the round step 14 is matched and propped in the communicating hole 8, and two ends of the floating plate 13 are provided with a pair of rectangular floating balls 15.

In the utility model, a pair of sliding plates 4 which are vertically symmetrically and fixedly connected are respectively arranged on two side walls of the gas collecting box 1, each rectangular floating ball 15 is slidably clamped between the corresponding pair of sliding plates 4, and the rectangular floating ball 15 and the buoyancy plate 13 slide up and down along with the change of the liquid level, so that the circular step 14 is conveniently driven to be matched with the communicating hole 8 for plugging.

The working principle is as follows:

firstly, sewage in a sewage tank enters a gas collecting tank 1 through a liquid injection hole 3, so that the liquid level in the gas collecting tank 1 is slowly raised, and at the moment, along with the raising of the liquid level, a rectangular floating ball 15 and a buoyancy plate 13 slide along a sliding plate 4 under the action of buoyancy;

secondly, the outer end of the air inlet pipe 11 is communicated with an external air pump, air is supplied into the air inlet pipe 11 through the external air pump, air enters the air distribution inner box 9 along the air inlet pipe 11, and air in the air distribution inner box 9 is discharged into the air collection box 1 through the small aeration holes 12;

thirdly, gas discharged from the aeration small holes 12 passes through sewage in the gas collecting tank 1, enters the cross structure 6 through the communicating holes 8, and is discharged from the rectangular through holes 7, so that the gas at the top in the gas collecting tank 1 is reduced;

fourthly, with the slow rise of the liquid level, the rectangular floating ball 15 and the buoyancy plate 13 are synchronously driven to rise, the round step 14 is driven to be blocked in the communicating hole 8, and at the moment, gas cannot be discharged through the cross structure 6;

fifthly, redundant gas is accumulated at the top in the gas collection box 1, the liquid level slowly descends along with the increase of the gas pressure, the rectangular floating ball 15 and the buoyancy plate 13 drive the round step 14 to synchronously descend under the action of gravity, so that the round step 14 is separated from the communication empty hole 8, and redundant gas is continuously discharged through the rectangular through hole 7;

and sixthly, repeating the operation process to form intermittent aeration.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a floater intermittent type aeration equipment, includes gas collection case (1), floater subassembly, its characterized in that: the bottom is equipped with case (9) in the gas collection case (1) in the distribution, the uncovered department of top surface of gas collection case (1) is equipped with top cap (5), roof is equipped with cross structure (6) in top cap (5), the middle part is equipped with the ball float subassembly in gas collection case (1).

2. The floating ball intermittent aeration device according to claim 1, characterized in that: a pair of limiting grooves (2) are formed in the bottoms of the two side faces of the gas collection box (1), a pair of limiting convex plates (10) are arranged at the bottoms of the two side faces of the gas distribution inner box (9), and each limiting convex plate (10) is fixedly connected with the corresponding limiting groove (2) in a clamping mode.

3. The floating ball intermittent aeration device according to claim 2, characterized in that: circular air inlets are formed in the top of each limiting convex plate (10), air inlet pipes (11) are inserted into the circular air inlets, and the inner ends of the air inlet pipes (11) extend into the air distribution inner box (9).

4. The floating ball intermittent aeration device according to claim 1, characterized in that: a pair of liquid injection holes (3) are formed in the bottoms of the front and rear surfaces of the gas collection box (1), and a pair of aeration small holes (12) are formed in the bottoms of the front and rear surfaces of the gas distribution inner box (9).

5. The floating ball intermittent aeration device according to claim 1, characterized in that: a pair of rectangular through holes (7) are formed in the front side and the rear side of the top surface of the top cover (5), four corners of the cross structure (6) are respectively communicated with the corresponding rectangular through holes (7), and communicating holes (8) are formed in the middle of the cross structure (6).

6. The floating ball intermittent aeration device according to claim 5, characterized in that: the floating ball assembly comprises a floating plate (13) and rectangular floating balls (15), the middle of the inner portion of the gas collection box (1) is provided with the floating plate (13), the middle of the top surface of the floating plate (13) is provided with a round step (14), the round step (14) is matched to abut into the communication hole (8), and two ends of the floating plate (13) are provided with a pair of rectangular floating balls (15).

7. The floating ball intermittent aeration device according to claim 6, characterized in that: the both sides wall of gas collection case (1) all is equipped with a pair of slide (4), every rectangle floater (15) all slides the block and between a pair of slide (4) that correspond.

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