CN104828968B - A kind of aerating system that can form circulation - Google Patents

Abstract

The invention discloses an aeration system capable of forming a circulation, which comprises an aerator, an elliptical annular pipe, a connecting pipe, a water inlet pipe and an air inlet pipe. Wherein, the aerator is fixed on the elliptical annular pipe by screw connection; the elliptical annular pipe is composed of a left hollow straight pipe, a right hollow straight pipe, a hollow semicircular arc pipe and a The U-shaped tee is spliced; the U-shaped tee is connected with the left hollow straight pipe, the right hollow straight pipe, and the connecting pipe; the connecting pipe is connected with four elliptical annular pipes, the water inlet pipe, and the air inlet pipe. The aeration system disclosed in the present invention can make the aeration The water around the aerator and the elliptical ring pipe forms a circulation to achieve aeration without dead ends, and can increase the degree of water turbulence, increase the contact time of air and water, improve the utilization rate of oxygen, and reduce energy consumption.

Description

An aeration system capable of forming circulation

technical field

The invention relates to an aeration system, in particular to an aeration system capable of forming circulation, which can be used in sewage treatment.

Background technique

At present, the commonly used aeration method in sewage biological treatment process is bottom blast aeration. Aeration can prevent the suspension of the tank from settling, and strengthen the contact between organic matter, microorganisms and dissolved oxygen in the pool, and strengthen the decomposition of organic matter in sewage by increasing oxygen. However, aeration is also the most energy-consuming link, accounting for about 50-70% of the total electricity consumption of the entire sewage treatment.

Common aeration methods in the prior art can be mainly divided into two categories, namely: bubble aeration method and surface aeration method. However, the aeration equipment used in the prior art often consumes a lot of power, has high operation and maintenance costs, and the volume of aeration bubbles is large, resulting in uneven aeration and low oxygen utilization. Although the aeration aperture of some aerators is extremely small, the volume of the bubbles produced is small, and the oxygen utilization rate is high, but the local loss caused by it is large, the energy consumption of the blower is large, and the aeration has dead angles, so it is necessary to find a method that can both An aeration system that produces small volume bubbles, high oxygen utilization and energy saving.

Aeration technology, as the core technology in sewage biological treatment process, has been paid more and more attention by water treatment circles and business circles all over the world. Research on new high-efficiency and low-energy aeration equipment has become an important factor in promoting sewage treatment, environmental protection industry development, and energy saving and consumption reduction.

Therefore, in order to solve the above technical problems, it is indeed necessary to provide an aeration system capable of forming a circulation, so as to overcome the above-mentioned defects in the prior art.

Contents of the invention

In order to solve the above problems, the purpose of the present invention is to provide an aeration system with simple structure, convenient assembly and disassembly, uniform aeration, no dead angle, and low energy consumption to form circulation with small bubble volume.

In order to achieve the above object, the technical solution adopted by the present invention is: an aeration system capable of forming a circulation, which is characterized in that it includes an aerator, an elliptical annular pipe, a connecting pipe, a water inlet pipe and an air inlet pipe. Wherein, the aerator is fixed on the elliptical ring-shaped pipeline by screw connection, the shape is spherical, and the material is ABS plastic, and the aerator is divided into an upper aerator and a lower aerator; the upper hemisphere of the aerator There are vertical holes along the vertical axis on both surfaces, the upper hole on the lower hemisphere of the upper aerator is at an angle of 45° to the vertical axis, and the direction is upward, and the lower hemisphere of the lower aerator is at an angle of 45° to the vertical axis The direction of the lower hole is downward; the upper aerator and the lower aerator are alternately fixed on the oval ring pipe. The elliptical annular pipe is spliced by a left hollow straight pipe, a right hollow straight pipe, a hollow semicircular arc pipe and a U-shaped tee, and the pipe material is ABS plastic; the elliptical annular pipe The long axis is the dividing line, and an upward slant hole is opened on the outside of the left tube and the inside of the right tube, and the hole is along the radius direction at an angle of 45° with the center surface of the ellipse; a downward slope is opened on the inside of the left tube and the outside of the right tube Hole, the opening is along the radius direction of the ellipse center surface at an angle of 45° downward. The U-shaped tee is connected with the connecting pipe, the left hollow straight pipe, and the right hollow straight pipe; the connecting pipe is connected with four elliptical annular pipes, a water inlet pipe, and an air inlet pipe.

The aeration system capable of forming circulation in the present invention is further as follows: the apertures of the aeration holes of the upper aerator and the lower aerator are both 1mm, and the wall thicknesses of the upper aerator and the lower aerator are both 3mm.

The aeration system capable of forming a circulation in the present invention can also be: the diameter of the aeration holes on the elliptical annular pipe is 1mm.

Compared with the prior art, an aeration system capable of forming a circulation of the present invention has the following beneficial effects:

1. Through the staggered arrangement of upper aerators and lower aerators with different opening directions on the elliptical ring pipe, compared with ordinary aerators, the bubbles generated by the aeration holes can make the aeration The water around the aerator forms a circulation, increases the turbulence of the water body, makes the air bubbles smaller, increases the air-water contact area, increases the contact time, and improves the oxygen utilization rate, so it can reduce the amount of aeration and reduce energy consumption. , At the same time, the service area of each aerator is increased, thereby reducing the amount of aerator.

2. Through the difference in opening positions on the outside of the left pipe, the outside of the right pipe, the inside of the left pipe and the inside of the right pipe, the water body under the aerator can also be oxygenated to achieve uniform aeration , There is no dead angle for aeration.

3. By opening the slanted hole and the slanted hole on the elliptical annular pipe, the air bubbles generated by it will make the water around the elliptical annular pipe form a circulation under the impact force, and also increase the turbulence of the water around the pipe. , the bubbles are cut smaller, the air-water contact area increases, the contact time increases, the utilization rate of oxygen is improved, the aeration volume is reduced, and the energy consumption is reduced. At the same time, the service area of the aeration tube per unit length is increased. Thereby reducing the material used for the aeration pipe.

Compared with the traditional aeration system, the present invention is composed of four elliptical ring-shaped pipes assembled by a single unit, which is easy to operate and maintain, and can save energy and materials more effectively.

Description of drawings

Fig. 1 is a perspective view of an aeration system capable of forming a circulation according to the present invention.

Fig. 2 is a gas flow diagram of an aeration system capable of forming a circulation according to the present invention.

Fig. 3 is a structural schematic diagram of an elliptical annular pipeline of the present invention.

Fig. 4 is a partial water body circulation diagram of the elliptical annular pipeline of the present invention.

Fig. 5 is a front view of the upper aerator of the present invention.

Fig. 6 is a front view of the lower aerator of the present invention.

Fig. 7 is a local water body circulation diagram between the upper aerator and the lower aerator of the present invention.

Labels in attached drawings 1 to 7: 1 elliptical annular pipe, 101 left hollow straight pipe, 102 right hollow straight pipe, 103 hollow semicircular arc pipe, 104 U-shaped tee, 105 left side pipe outside, 106 left side Inside of pipe, 107 outside of right pipe, 108 inside of right pipe, 109 upper inclined hole, 110 lower inclined hole, 2 connecting pipe, 3 water inlet pipe, 4 air inlet pipe, 5 upper aerator, 501 upper hole, 6 lower aerator Air device, 601 lower holes, 7 vertical holes.

The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

detailed description

Please refer to Fig. 1 of the description, the present invention is a kind of aeration system that can form circulation, and it is made up of five parts of aerator, ellipse annular pipe 1, connecting pipe 2, water inlet pipe 3 and air inlet pipe 4. Wherein, the aerator is fixed on the elliptical annular pipe 1 by screw connection; the connecting pipe 2 is connected with four elliptical annular pipes 1, water inlet pipe 3, and air inlet pipe 4 to form a unit body.

Referring to Fig. 2, Fig. 3 and Fig. 4, when the water inlet pipe 3 is closed and the air inlet pipe 4 is in the intake state, the gas is evenly distributed to the four elliptical annular pipes 1 through the connecting pipes. The elliptical annular pipe 1 is spliced by a left hollow straight pipe 101, a right hollow straight pipe 102, a hollow semicircular arc pipe 103 and a U-shaped tee 104, and the U-shaped tee 104 is connected with The connecting pipe 2, the left hollow straight pipe 101, and the right hollow straight pipe 102 are connected; with the long axis of the elliptical annular pipe 1 as the dividing line, an oblique hole 109 is opened on the outside 105 of the left pipe and the inside 108 of the right pipe, and the opening Along the radial direction at an angle of 45° upward with the central surface of the ellipse, a downward oblique hole 110 is opened on the inner side 106 of the left pipe and the outer side 107 of the right pipe. The apertures of the aeration holes on the annular pipe 1 are all 1mm. The air bubbles coming out of the upward inclined hole 109 and the air bubbles coming out of the downward inclined hole 110 make the water around the elliptical annular pipe 1 form a circulation under the impact force.

Referring to Fig. 5, Fig. 6 and Fig. 7, the gas enters the aerator through an elliptical annular pipe, and the aerator is divided into an upper aerator 5 and a lower aerator 6, and the upper aerator 5 and the lower aerator 6 The upper hemisphere is opened with vertical holes 7 along the vertical axis, the lower hemisphere of the upper aerator 5 is opened with an upper hole 501 at an angle of 45° to its vertical axis, and the direction is upward, and the lower hemisphere of the lower aerator 6 is opened with its vertical axis. The lower hole 601 at an angle of 45° to the vertical axis is directed downward, and the upper aerator 5 and the lower aerator 6 are alternately fixed on the elliptical annular pipe 1, and the diameter of the aeration holes is 1 mm, and the wall thickness is uniform is 3mm. The air bubbles coming out of the upper hole 501 and the air bubbles coming out of the lower hole 601 make the water around the upper aerator 5 and the lower aerator 6 form a circulation under the impact force.

After the equipment has been in operation for a period of time, in order to prevent the aeration system from being blocked, the air inlet pipe 4 can be closed and the water inlet pipe 3 can be in the state of water intake, and the entire aeration system can be flushed with pressure water to ensure that the aeration system is not blocked.

The aeration system capable of forming circulation of the present invention arranges the upper aerator 5 and the lower aerator 6 in an staggered manner on the elliptical annular pipe 1, and the air bubbles coming out from the upper hole 501 and the lower hole 601 are under the action of the impact force. It can make the water around the upper aerator 5 and the lower aerator 6 form a circulation, and the water body is disturbed, so that the large air bubbles are sheared into small air bubbles, which increases the contact time between the air bubbles and water, improves the utilization rate of oxygen, and reduces The energy consumption of the aeration process is reduced; by opening the upper inclined hole 109 and the lower inclined hole 110 on the oval annular pipe 1, the air bubbles coming out from the upper inclined hole 109 and the lower inclined hole 110, under the action of the impact force, make the The water around the elliptical annular pipe 1 forms a circulation to achieve energy-saving effect. At the same time, it can also oxygenate the water below the upper aerator 5 and the lower aerator 6 to achieve the effect of uniform aeration and no dead angle for aeration.

The specific implementation above is only a preferred embodiment of this creation, and is not intended to limit this creation. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this creation should be included in this creation. within the scope of protection.

Claims (3)

1. the aerating system that can form circulation, it is characterised in that: include aerator, elliptic looped pipeline (1), connect Pipeline (2), water inlet pipe (3) and air inlet pipe (4)；Wherein, the employing of described aerator is threaded is fixed on elliptic loop pipe On road, being shaped as spherical, material is ABS plastic, and aerator divides aerator (5) and lower aerator (6)；Described aerator Upper half sphere all open the upright opening (7) along vertical axis, the lower half sphere of upper aerator opens perpendicular axis angle at 45 ° Upper hole (501), upward, the lower half sphere of lower aerator opens the lower opening (601) at perpendicular axis angle at 45 °, direction in direction Down；Upper aerator (5) and lower aerator (6) are alternately fixed on elliptic looped pipeline；Described elliptic looped pipeline (1) by a left hollow straight pipe (101), a right hollow straight pipe (102), a hollow semi arch pipe (103) and one U-shaped threeway (104) is spliced, and tubing is ABS plastic；With elliptic looped pipeline (1) long axis as line of demarcation, Outside the pipe of left side, inside (105) and right side pipe, (108) open inclined hole (109), perforate edge with elliptical center towards upper at 45 ° The radial direction at angle；Inside the pipe of left side, outside (106) and right side pipe, (107) open lower inclined hole (110), perforate along and ellipse The radial direction at the downward angle at 45 ° of median plane；Described U-shaped threeway (104) be connected pipeline (2), left hollow straight pipe (101), Right hollow straight pipe (102) connects；Described connection pipeline (2) and 4 elliptic looped pipelines (1), water inlet pipe (3), enter Tracheae (4) connects.

The aerating system that can form circulation the most according to claim 1, it is characterised in that: described upper aerator (5) and The upper solarization air cap aperture of lower aerator (6) is 1mm, upper aerator (5) and lower aerator (6) wall thickness and is 3mm.

The aerating system that can form circulation the most according to claim 1, it is characterised in that: described elliptic looped pipeline (1) Upper solarization air cap aperture is 1mm.