CN112479398A

CN112479398A - Aerator for environmental sewage treatment

Info

Publication number: CN112479398A
Application number: CN201910856014.6A
Authority: CN
Inventors: 华超
Original assignee: Jiangsu Huishun Environmental Protection Technology Co ltd
Current assignee: Jiangsu Huishun Environmental Protection Technology Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2021-03-12

Abstract

The invention discloses an aerator for environmental sewage treatment, and particularly relates to the field of sewage treatment. The invention can be arranged in the sewage treatment tank in a similar arrangement mode of arranging water pipes by using the strip-shaped supporting base, so that the ventilation in the whole treatment tank is uniform, and in addition, the arrangement density of the device can be randomly adjusted in a linear arrangement mode by mutually clamping the aerators to meet the accurate requirement on the ventilation quantity.

Description

Aerator for environmental sewage treatment

Technical Field

The invention relates to the technical field of sewage treatment, in particular to an aerator for environmental sewage treatment.

Background

45-75% of energy consumption of the sewage treatment plant is used for aeration, and the operation and maintenance cost is high, so that the improvement of the oxygenation performance and the structural stability of the aerator is beneficial to energy conservation and consumption reduction, and the stable operation of the whole aeration system is ensured, so that the structure and the function of the microporous aerator need to be optimized or even innovated.

The microporous aerator is a core device for blast aeration oxygenation in sewage treatment, and the microporous aerator widely used in sewage treatment plants is generally tubular, disc-type or plate-type at present; the material is mainly ceramic, plastic and ethylene propylene diene monomer; at present, no microporous aerator which is made of polyurethane rubber and is in a micro arch plate shape is available, the size of bubbles generated by the aerator is determined by the aperture and the hole interval, and the oxygen transfer efficiency of aeration is directly influenced; but the air bubbles are small, and the resistance loss of the microporous aerator is increased at the same time; the reasonable hole spacing can not only avoid the coalescence of bubbles, but also reduce the aeration resistance, thereby improving the oxygen transfer efficiency, the larger the effective aeration membrane area of the aerator is, the larger the aeration membrane flux is, the more beneficial to the oxygen mass transfer, in addition, the aerator should have scientific and stable structure, the pollution resistance and corrosion resistance of the aeration membrane, thus being beneficial to the long-term, stable and high-efficiency operation of the aeration system, but the prior tubular and disc type micropore aerators have low air outlet area and waste partial aeration area, easily generate pressure difference in the operation process, cause uneven air flow distribution, have low oxygen transfer efficiency, larger resistance loss of the plate type micropore aerator, poor gas-liquid stirring capability, fragile corundum ceramic materials, easy blockage and difficult cleaning, ethylene propylene diene monomer rubber has resistance to biological pollution and poor oil resistance, is easy to tear under the high-pressure high-flux operation, and the physical and chemical properties of the material of the prior rubber membrane, the aerator is not optimized and modified according to different processes and working conditions, and the manufacturing process is rough, so that the stability, the air distribution uniformity, the aperture and the pore spacing uniformity of the aerator are poor.

In order to solve the problems, the patent of the patent application publication No. CN104326580A discloses a microporous aerator for sewage treatment, and the reference of the specification is attached to the attached figures 5 and 6, the diameter of the generated bubbles is reduced when an aeration membrane of the microporous aerator is in a static state, so that the gas-liquid contact area is improved, and the oxygen utilization rate is greatly improved; the microporous aerator is of a micro-arch structure, the aeration membrane is fully contacted with a liquid phase, sludge is prevented from being deposited on the surface of the aerator, the power efficiency is obviously improved under unit energy consumption, and the operation energy consumption in the aeration process is reduced.

However, the technical scheme still has more defects in actual application;

firstly, because the rectangular supporting base is adopted in the invention, in the practical use, according to the practical measurement, the ventilation volume of the sewage in the area of the practical projection area of the device is obviously improved, because the size of the device is limited, a plurality of devices are required to be densely and closely arranged in the whole sewage treatment pool to achieve the ventilation volume in the whole sewage treatment pool, so that the sewage treatment cost is greatly improved;

secondly, because the invention utilizes the square rectification gas distribution plate to lead the effective length of the aerator membrane to be 1000mm and the effective width to be 200mm, the effective aeration area of the device is limited, once the square rectification gas distribution plate is modified to enlarge the surface area of the device, the rectification gas distribution plate loses the gas distribution effect, thereby limiting the upsizing of the device and having certain limitation.

Therefore, it is desirable to provide an aerator which is used for large-scale environmental sewage treatment, has low cost and can be arranged in a large area.

Disclosure of Invention

In order to overcome the above defects of the prior art, embodiments of the present invention provide an aerator for environmental sewage treatment, which can be arranged in a sewage treatment tank by using a strip-shaped rectification gas distribution plate in an arrangement manner similar to the arrangement manner of water pipes, so as to achieve uniform aeration in the whole treatment tank, and can adjust the arrangement density of the device at will in a linear arrangement manner by mutually clamping the aerators, so as to achieve the precise requirement on the aeration quantity; in addition, the invention uses the long-strip-shaped aerator and the aerators are mutually clamped, so that the device does not need to consider the shape of the treatment tank, can easily deal with the treatment tanks of different types, and can be spliced by a plurality of aerators no matter the ultra-large treatment tank or the micro treatment tank, thereby solving the problem of difficult air flow distribution of the large-scale aerator, greatly improving the practicability of the device and solving the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an aerator for environmental sewage treatment, is including being rectangular shape support base, the inside fixed mounting who supports the base has the vortex backup pad, sealing rubber ring has been pasted at the both ends of vortex backup pad, the surface attachment of vortex backup pad has the aerator diaphragm, the aerator diaphragm forms an inclosed cavity with the support base, the bottom of supporting the base is provided with semi-circular breather pipe, the air channel intercommunication breather pipe has been seted up to the bottom surface of supporting the base, the both sides of supporting the base fixed mounting respectively have hickey, threaded sleeve.

In a preferred embodiment, the turbulence support plate is composed of two vertical plates and an arc-shaped plate, and the aerator membrane is attached to the surface of the arc-shaped plate of the turbulence support plate.

In a preferred embodiment, the aerator membrane is provided with a plurality of rows of aeration holes which are arranged in parallel, the two adjacent rows of aeration holes are arranged in a staggered manner, and the pore diameter of each aeration hole is 100-300 μm.

In a preferred embodiment, grooves are formed in two sides of the inside of the supporting base, the sealing rubber rings are located in the grooves in the two sides of the supporting base, and the top surfaces and the bottom surfaces of the sealing rubber rings are respectively connected with the aerator membrane and the supporting base.

In a preferred embodiment, the length of the vent slot is shorter than the length of the inner cavity of the support base, the width of the vent slot is equal to the inner radius of the vent pipe, and the vent slot is located at the center of the vent pipe.

In a preferred embodiment, the threaded interface is adapted to a threaded sleeve, and the threaded interface and the threaded sleeve are respectively connected to two ends of the vent pipe.

In a preferred embodiment, the support base, the vent pipe, the threaded connector and the threaded sleeve are integrally formed, and the support base, the vent pipe, the threaded connector and the threaded sleeve are made of high-strength polyethylene.

The invention has the technical effects and advantages that:

1. the invention can be arranged in the sewage treatment tank in a similar arrangement mode of arranging water pipes by using the strip-shaped supporting base, so that the ventilation in the whole treatment tank is uniform, and in addition, the arrangement density of the device can be randomly adjusted in a linear arrangement mode by mutually clamping the aerators to meet the accurate requirement on the ventilation quantity;

2. the invention uses the strip-shaped aerators and the aerators are mutually clamped, so that the device does not need to consider the shape of the treatment tank, can easily deal with different types of treatment tanks, can be spliced by a plurality of aerators no matter the treatment tank is an ultra-large treatment tank or a micro treatment tank, solves the problem of difficult air flow distribution of the large aerators, and greatly improves the practicability of the device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic view of the supporting base structure of the present invention.

Fig. 4 is a schematic side view of the present invention.

FIG. 5 is a diagram illustrating a structure of a comparison file according to the present invention.

FIG. 6 is a schematic top view of a comparison document according to the present invention

The reference signs are: 1. a support base; 2. sealing the rubber ring; 3. an aerator diaphragm; 4. a turbulent flow support plate; 5. a vent channel; 6. a breather pipe; 7. a threaded interface; 8. a threaded bushing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The aerator for environmental sewage treatment shown in the accompanying drawings 1-4 comprises a strip-shaped supporting base 1, wherein a turbulent flow supporting plate 4 is fixedly arranged in the supporting base 1, sealing rubber rings 2 are pasted at two ends of the turbulent flow supporting plate 4, an aerator diaphragm 3 is attached to the surface of the turbulent flow supporting plate 4, the aerator diaphragm 3 and the supporting base 1 form an airtight cavity, a semicircular ventilating pipe 6 is arranged at the bottom of the supporting base 1, a ventilating groove 5 is formed in the bottom surface of the supporting base 1 and communicated with the ventilating pipe 6, and a threaded connector 7 and a threaded sleeve 8 are fixedly arranged on two sides of the supporting base 1 respectively.

Fig. 5 and 6 show the structure of the comparison file.

The implementation mode is specifically as follows: the use of the strip-shaped rectifying and air distributing plate can realize the arrangement and the arrangement in the sewage treatment tank in a manner similar to the arrangement of water pipes, so that the ventilation in the whole treatment tank is uniform, and in addition, the arrangement density of the device can be randomly adjusted in a linear arrangement manner by mutually clamping the aerators to meet the accurate requirement on the ventilation quantity; in addition, the invention uses the long-strip-shaped aerators, and the aerators are mutually clamped, so that the device does not need to consider the shape of the treatment tank, can easily deal with the treatment tanks of different types, and can be spliced by a plurality of aerators no matter the ultra-large treatment tank or the micro treatment tank, thereby solving the problem of difficult air flow distribution of the large-scale aerators and greatly improving the practicability of the device.

Wherein, vortex backup pad 4 comprises two risers and an arch, aerator diaphragm 3 is attached on the arch of vortex backup pad 4's surface, plays the vortex and supports the effect of aerator diaphragm 3.

Wherein, be equipped with a plurality of rows of aeration holes on the aerator diaphragm 3, and be parallel arrangement, be crisscross setting between the two adjacent rows of aeration holes, the aperture of aeration hole is 100 ~ 300 mu m, and the bubble that the aerator produced makes the oxygen utilization ratio improve for a short time, and the oxygenation performance is showing and is improving, and the hole interval size sets up the emergence that can prevent the bubble and gather the phenomenon rationally, improves oxygen transfer efficiency.

Grooves are formed in two sides of the interior of the supporting base 1, the sealing rubber rings 2 are located in the grooves in the two sides of the supporting base 1, and the top surfaces and the bottom surfaces of the sealing rubber rings 2 are respectively connected with the aerator diaphragms 3 and the supporting base 1, so that gas cannot escape from the joints of the supporting base 1 and the aerator diaphragms 3.

Wherein, the length of air channel 5 is shorter than the inner chamber length of supporting base 1, the width of air channel 5 equals the inside radius of breather pipe 6, air channel 5 is located the center of breather pipe 6 for whole supporting base 1 internal gas pressure evenly distributed, aerator diaphragm 3 gives vent to anger evenly.

The threaded connector 7 is matched with the threaded sleeve 8, and the threaded connector 7 and the threaded sleeve 8 are respectively connected with two ends of the aeration pipe 6, so that the aerators can be connected with each other and laid at the bottom of the treatment tank, and the laying and installation efficiency is higher.

Wherein, support base 1, breather pipe 6, hickey 7 and threaded sleeve 8 and be integrated into one piece, support base 1, breather pipe 6, hickey 7 and threaded sleeve 8 and be the high strength polyethylene material, reduce material cost under the circumstances of guaranteeing the hardness.

The working principle of the invention is as follows:

first establish ties two liang of each other according to the treatment tank shape with this device, constitute a whole route, kneck at both ends leads to high-pressure air pump and oxygenates, or one end seals to oxygenate at the other end, gas gets into from breather pipe 6 and transports to the sealed intracavity that supports base 1 and aerator diaphragm 3 and constitute, the vortex through vortex backup pad 4 carries out evenly distributed, along with the rising of atmospheric pressure, gas can follow the downthehole even effluvium of aeration of aerator diaphragm 3, reach the effect to the even oxygenation of sewage, the surperficial processes of aerator diaphragm 3 can effectively prevent dust in the sewage to fall and shine into the jam on aerator diaphragm 3 surface.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides an aerator for environmental sewage treatment, is including being rectangular shape support base (1), its characterized in that: the utility model discloses a vortex flow aeration device, including support base (1), sealed rubber ring (2) are pasted at the both ends of vortex flow backup pad (4), the surface attachment of vortex flow backup pad (4) has aerator diaphragm (3), aerator diaphragm (3) and support base (1) form an inclosed cavity, the bottom of supporting base (1) is provided with semi-circular breather pipe (6), air channel (5) intercommunication breather pipe (6) have been seted up to the bottom surface of supporting base (1), the both sides of supporting base (1) fixed mounting respectively have hickey (7), threaded sleeve (8).

2. An aerator for environmental sewage treatment as claimed in claim 1, characterised in that: the turbulent flow supporting plate (4) is composed of two vertical plates and an arched plate, and the aerator diaphragm (3) is attached to the arched plate surface of the turbulent flow supporting plate (4).

3. An aerator for environmental sewage treatment as claimed in claim 1, characterised in that: the aerator diaphragm (3) is provided with a plurality of rows of aeration holes which are arranged in parallel, the adjacent two rows of aeration holes are arranged in a staggered manner, and the aperture of each aeration hole is 100-300 mu m.

4. An aerator for environmental sewage treatment as claimed in claim 1, characterised in that: grooves are formed in two sides of the interior of the supporting base (1), the sealing rubber ring (2) is located in the grooves in the two sides of the supporting base (1), and the top surface and the bottom surface of the sealing rubber ring (2) are connected with the aerator diaphragm (3) and the supporting base (1) respectively.

5. An aerator for environmental sewage treatment as claimed in claim 1, characterised in that: the length of air channel (5) is shorter than the length of the inner cavity of support base (1), the width of air channel (5) is equal to the inner radius of air pipe (6), air channel (5) is located at the center of air pipe (6).

6. An aerator for environmental sewage treatment as claimed in claim 1, characterised in that: the threaded connector (7) is matched with the threaded sleeve (8), and the threaded connector (7) and the threaded sleeve (8) are respectively connected with two ends of the vent pipe (6).

7. An aerator for environmental sewage treatment as claimed in claim 1, characterised in that: support base (1), breather pipe (6), hickey (7) and threaded sleeve pipe (8) and be integrated into one piece, support base (1), breather pipe (6), hickey (7) and threaded sleeve pipe (8) and be the high strength polyethylene material.