CN214936345U

CN214936345U - Aeration device

Info

Publication number: CN214936345U
Application number: CN202120309925.XU
Authority: CN
Inventors: 曾香; 华河林; 王堃
Original assignee: Guangdong Zhongmo Technology Co ltd; Jiangxi China Membrane Environmental Technology Co ltd
Current assignee: Guangdong Zhongmo Technology Co ltd; Jiangxi China Membrane Environmental Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-11-30
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses an aeration device, include: the jet device is a Venturi tube, the jet device is connected with the submersible pump through a hose, and an air inlet is formed in the top end of the jet device; the lower end of the air duct is vertically connected with the air inlet; the support is fixedly installed on the ground at the edge of the sewage pool, the air guide pipe is arranged in the support in a penetrating mode and can rotate along the axis of the air guide pipe, the top end of the air guide pipe is provided with a limiting structure which is abutted against the support so as to limit the air guide pipe to slide downwards, and the air guide pipe can move upwards to lift the ejector out of the water surface. The utility model provides an aeration equipment passes through the control hose and links to each other immersible pump and ejector, and the ejector utilizes gravity and limit structure to realize fixedly at the during operation, when needing to wash the ejector, need not to put the water in the effluent water sump, utilizes the air duct to drive the ejector and shifts up and break away from the surface of water, just can wash the ejector.

Description

Aeration device

Technical Field

The utility model relates to a sewage treatment field especially relates to an aeration equipment.

Background

At present, aerobic biological treatment is the first choice process for treating urban sewage, domestic sewage and low-concentration industrial organic wastewater, and an aeration device is key equipment for the aerobic biological treatment of organic wastewater. The jet aeration is based on Venturi principle, the water from the working water pump passes through the nozzle of the ejector, the liquid is ejected from the nozzle at a very high speed along with the reduction of the diameter of the nozzle, the high-speed flowing liquid passes through the air suction chamber and enters the throat pipe, local vacuum is formed in the throat pipe, and a large amount of air sucked (or pressed) through the air duct enters the throat pipe and then is divided into a large amount of tiny bubbles under the action of the pressure of the water jet to form a mixture with the water. The gas-liquid mixture is discharged outwards through the diffusion pipe, the speed is reduced, the pressure is enhanced, a powerful jet flow is formed, and the wastewater is stirred and oxygenated. After jet aerator used a period, the mud-water mixture of aeration tank caused jet aerator's gas outlet to block up easily, led to jet aerator unable normal aeration, and traditional jet aeration device fixed mounting was at the bottom of the pool below the surface of water, in case when the condition of damage appeared, it was comparatively difficult to change and maintain.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an aeration device, can be convenient when the ejector takes place to block up the ejector clear up the maintenance to the ejector.

An aeration device according to an embodiment of the first aspect of the present invention comprises: the device comprises a sewage pool, a submersible pump, an ejector, an air duct and a bracket, wherein the submersible pump is arranged below the water surface of the sewage pool; the ejector is a Venturi tube, the ejector is connected with the submersible pump through a hose, and an air inlet is formed in the top end of the ejector; the lower end of the air duct is vertically connected with the air inlet; the bracket is fixedly installed on the ground at the edge of the sewage pool, the air guide pipe penetrates through the bracket and can rotate along the axis of the air guide pipe, a limiting structure which is abutted against the bracket is arranged at the top end of the air guide pipe so as to limit the air guide pipe to slide downwards, and the air guide pipe can move upwards to lift the ejector out of the water surface.

According to the utility model discloses aeration equipment, at least, following technological effect has: link to each other immersible pump and ejector through the control hose, make the ejector can not influence the immersible pump when removing, the air duct is worn to establish on the support, and the ejector utilizes gravity and limit structure to realize fixing at the during operation, when needing to wash the ejector, need not to put the water in the effluent water sump, utilizes the air duct to drive the ejector and shifts up and break away from the surface of water, washs the ejector that just can be convenient.

According to some embodiments of the invention, the submersible pump is mounted on the lateral wall of the wastewater tank and is not higher than the minimum water level of the wastewater tank.

According to some embodiments of the utility model, the ejector from with hose connection's one end is equipped with water inlet, reducer, choke, diffusion tube, discharge port in proper order to the other end, the water inlet with the hose links to each other, the choke with the air inlet links to each other, the discharge port is used for the water discharge.

According to some embodiments of the invention, the outlet opening is arranged obliquely downwards, the angle of inclination downwards being 10 ° to 15 °.

According to some embodiments of the utility model, the support includes roof-rack and chassis, the air duct passes in proper order the roof-rack with the chassis, limit structure with the roof-rack offsets.

According to some embodiments of the present invention, the bottom frame comprises an outer plate and an inner plate, the outer plate and the inner plate are detachably connected, the inner plate is fixed on the ground, and the air duct passes through the outer plate.

According to some embodiments of the present invention, the top frame and the bottom frame are all provided with a diagonal brace.

According to some embodiments of the utility model, be equipped with first gear on the air duct, first gear is located the limit structure top, be equipped with servo motor on the support, the servo motor top is connected with the second gear, first gear with second gear drive links to each other, servo motor can drive ejector reciprocating swing.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of an installation structure of an embodiment of the present invention;

fig. 2 is a schematic view of an ejector according to an embodiment of the present invention;

fig. 3 is a schematic view of a bracket according to an embodiment of the present invention.

Reference numerals:

a sewage tank 100;

a submersible pump 200, a hose 210;

jet device 300, water inlet 310, reducer 320, throat pipe 330, diffuser 340, outlet 350, and air inlet 360;

the air guide pipe 400, the limiting structure 410 and the first gear 420;

the rack 500, the top frame 510, the bottom frame 520, the outer plate 521, the inner plate 522, the diagonal brace 530, the servo motor 540 and the second gear 541.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an aeration apparatus according to an embodiment of the present invention includes: the sewage tank 100, the submersible pump 200, the ejector 300, the air duct 400 and the bracket 500. The submersible pump 200 is installed below the liquid level of the sewage tank 100; the ejector 300 is a venturi tube, the ejector 300 is connected with the submersible pump 200 through the hose 210, the hose 210 is tightly sleeved on the water inlet 310, the submersible pump 200 pumps sewage in the sewage tank 100 into the ejector 300, and the top end of the ejector 300 is provided with an air inlet 360; the lower end of the air duct 400 is vertically connected with the air inlet 360, air is sucked into the ejector 300 from the air duct 400 by utilizing the Venturi effect, and the air and sewage are violently mixed in the ejector 300 and then discharged into the sewage tank 100; the support 500 is fixedly installed on the ground at the edge of the sewage tank 100, the air duct 400 penetrates through the support 500 and can rotate along the axis of the air duct, the limiting structure 410 is arranged at the top end of the air duct 400, the limiting structure 410 abuts against the support 500 to limit the air duct 400 to slide downwards, so that the position of the jet device 300 in the sewage tank 100 is fixed, the air duct 400 can move upwards to lift the jet device 300 out of the water, and when the jet device 300 is blocked, the jet device 300 can be conveniently taken out for cleaning.

The utility model provides a pair of aeration equipment, control hose 210 links to each other immersible pump 200 with ejector 300, makes ejector 300 can not influence immersible pump 200 when removing, and air duct 400 wears to establish on support 500, and ejector 300 utilizes gravity and limit structure 410 to realize fixing at the during operation, and when needing to wash ejector 300, air duct 400 drives ejector 300 and shifts up and break away from the surface of water, just can be convenient washs ejector 300.

In some embodiments of the present invention, the submersible pump 200 is bolted to the side wall of the wastewater tank 100, and the height of the submersible pump 200 is not higher than the minimum water level of the wastewater tank 100, so that the submersible pump 200 is not damaged by idling.

In some embodiments of the present invention, the ejector 300 is sequentially provided with a water inlet 310, a reducing pipe 320, a throat pipe 330, a diffusing pipe 340, and a discharging port 350 from one end connected to the hose 210 to the other end, the hose 210 is sleeved on the water inlet 310, water enters the water inlet 310 from the hose 210 and flows into the reducing pipe 320, since the flowing cross section becomes smaller, the flow rate is increased, the throat pipe 330 is connected to the air inlet 360, water flowing at high speed in the throat pipe 330 sucks air from the air inlet 360, the water-air mixture flows into the diffusing pipe 340, the water-air mixture is fully mixed in the diffusing pipe 340, and the water-air mixture is discharged into the sewage tank 100 from the discharging port 350.

In some embodiments of the present invention, the outlet 350 is inclined downward, the downward inclination angle is 10 ° to 15 °, the outlet 350 is inclined downward to facilitate the washing of the sludge at the bottom of the tank, the retention time of the bubbles in water can be prolonged, and the aeration efficiency is improved.

In some embodiments of the present invention, the bracket 500 includes a top frame 510 and a bottom frame 520, the top frame 510 and the bottom frame 520 are both fixedly connected to the ground, and the air duct 400 sequentially passes through the top frame 510 and the bottom frame 520. The limiting structure 410 abuts against the top frame 510, and the limiting structure 410 is a shaft sleeve which is connected to the upper end of the air duct 400 through threads, so that the position of the limiting structure 410 on the air duct 400 can be adjusted. The air duct 400 is radially limited by the top frame 510 and the bottom frame 520, so that the air duct 400 is kept in a vertical state, and the air duct 400 and the ejector 300 are conveniently moved upwards.

In some embodiments of the present invention, the bottom frame 520 includes an outer plate 521 and an inner plate 522, the outer plate 521 and the inner plate 522 are connected by bolts, the inner plate 522 is fixed on the ground, the air duct 400 passes through the outer plate 521, and after the jet device 300 is moved out of the water surface, the outer plate 521 is detached to facilitate cleaning the jet device 300.

In some embodiments of the present invention, the inclined struts 530 are installed on both the top frame 510 and the bottom frame 520, and the inclined struts 530 improve the structural stability of the top frame 510 and the bottom frame 520.

In some embodiments of the utility model, be equipped with first gear 420 on the air duct 400, first gear 420 is located limit structure 410 top, be equipped with servo motor 540 on the support 500, servo motor 540 top is connected with second gear 541, first gear 420 links to each other with the transmission of second gear 541 during normal work, servo motor 540 can drive ejector 300 reciprocating swing, ejector 300 reciprocating swing makes the injection area increase of discharge port 350 exhaust rivers, be favorable to improving aeration efficiency, when ejector 300 is washd to needs, upward movement air duct 400 can make first gear 420 and second gear 541 separate, do not influence air duct 400 and upwards move.

The cleaning method comprises the following steps: after finding ejector 300 and blockking up, need not to drain the water of effluent water sump 100, close servo motor 540 and immersible pump 200, directly upwards mention air duct 400 and tear off planking 521, can remove ejector 300 to the surface of water top on inner panel 522, can be convenient this moment wash and maintain ejector 300, adorn planking 521 after the washing is accomplished, put down air duct 400, adjust limit structure 410 and make first gear 420 and second gear 541 mesh, start servo motor 540 and immersible pump 200.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An aeration device, comprising:

a lagoon (100);

a submersible pump (200), the submersible pump (200) being installed below the water surface of the wastewater tank (100);

the ejector (300) is a Venturi tube, the ejector (300) is connected with the submersible pump (200) through a hose (210), and an air inlet (360) is formed in the top end of the ejector (300);

the lower end of the air duct (400) is vertically connected with the air inlet (360);

the device comprises a support (500), the support (500) is fixedly installed on the ground at the edge of the sewage tank (100), the air duct (400) penetrates through the support (500) and can rotate along the axis of the air duct, a limiting structure (410) which is abutted against the support (500) is arranged at the top end of the air duct (400) to limit the air duct (400) to slide downwards, and the air duct (400) can move upwards to lift the jet device (300) out of the water surface.

2. An aeration device according to claim 1, wherein: the submersible pump (200) is installed on a side wall of the wastewater tank (100) and is not higher than a minimum water level of the wastewater tank (100).

3. An aeration device according to claim 1, wherein: the jet device (300) is sequentially provided with a water inlet (310), a reducer (320), a throat pipe (330), a diffusion pipe (340) and a discharge port (350) from one end connected with the hose (210) to the other end, the water inlet (310) is connected with the hose (210), the throat pipe (330) is connected with the air inlet (360), and the discharge port (350) is used for discharging water.

4. An aeration device according to claim 3, characterized in that: the discharge port (350) is arranged obliquely downwards, and the downward inclination angle is 10-15 degrees.

5. An aeration device according to claim 1, wherein: the support (500) comprises an upper frame (510) and a bottom frame (520), the air duct (400) sequentially penetrates through the upper frame (510) and the bottom frame (520), and the limiting structure (410) is abutted to the upper frame (510).

6. An aeration device according to claim 5, wherein: the chassis (520) comprises an outer plate (521) and an inner plate (522), the outer plate (521) is detachably connected with the inner plate (522), the inner plate (522) is fixed on the ground, and the air duct (400) penetrates through the outer plate (521).

7. An aeration device according to claim 5, wherein: inclined struts (530) are arranged on the top frame (510) and the bottom frame (520).

8. An aeration device according to claim 1, wherein: be equipped with first gear (420) on air duct (400), first gear (420) are located limit structure (410) top, be equipped with servo motor (540) on support (500), servo motor (540) top is connected with second gear (541), first gear (420) with second gear (541) transmission links to each other, servo motor (540) can move ejector (300) reciprocating swing.