KR20040007127A - A mixing-aerator integrated with pump and the controlling me thod there of - Google Patents

Abstract

PURPOSE: Provided are an aerator/mixer with functions of aeration, mixing and pumping in a single body with compact size to effectively aerating, mixing and pumping water at low cost, while minimizing non-aerated area in water. CONSTITUTION: The aerator comprises a submerged motor(32) being capable of varying revolution per minute (RPM), a flange assembly(34) with a flange(60) having an air inlet(54) and a liquid inlet(56) which are arranged at the opposite sides and a pipe part(58) which has a center portion through which a rotating shaft(50) of the submerged motor(32) is penetrating, a transfer impeller(36) combined with the rotating shaft(50) so as to supply air and liquid into the inlets(54,56) of the flange(60), a mixing impeller(38) combined with the rotating shaft(50) at a portion distanced from the transfer impeller(36), an air inlet pipe(40) connected to the air inlet(54) of the flange assembly(34), a liquid inlet pipe(42) connected to the liquid inlet(56) of the flange assembly(34), an air control valve(44) installed on a side of the air inlet pipe(40) for controlling air flow rate in response to a predetermined electrical signal, a liquid control valve(46) installed on a side of the liquid inlet pipe(42) for controlling liquid flow rate, a controller(48) for controlling the submerged motor(32), the air control valve(44) and the liquid control valve(46) on an automatic mode or a manual mode in response to a predetermined electrical signal. The method comprises the steps of performing aeration and mixing of water by driving a submerged motor when an air control valve is opened and a liquid control valve are closed, performing transferring and mixing of water by driving the submerged motor when the air control valve is closed and the liquid control valve is opened, performing aeration, transferring and mixing of water by driving the submerged motor when the air control valve and the liquid control valve are partially opened, and performing mixing of water by driving the submerged motor when the air control valve and the liquid control valve are completely closed.

Description

Agitator-aerator with integrated pump and its control method {A MIXING-AERATOR INTEGRATED WITH PUMP AND THE CONTROLLING ME THOD THERE OF}

The present invention relates to a pump-integrated stirring aeration device, and more particularly, the aeration function for supplying oxygen to the reaction tank and the anaerobic reaction efficiency in the process of removing organic matter and nutrients (nitrogen, phosphorus) of O, waste water Of course, it also provides the ability to pump wastewater (liquid transfer to the reactor) while simultaneously eliminating existing liquid transfer pumps and reducing double-aeration equipment, and can be installed in any reactor in series / parallel. The present invention relates to a pump-integrated stirring aeration device that minimizes the non-aeration area and transfers aeration, agitation, and liquid efficiently and economically.

1 is a view showing that the aeration and stirring equipment is configured in the reaction vessel in the process of removing organic matter and nutrients (nitrogen, phosphorus) of the general wastewater, waste water.

The organic matter and nutrient (nitrogen, phosphorus) removal device of the wastewater and wastewater 2 includes a reaction tank 4 and an underwater stirrer 6 on one side of the reaction tank 4 and the other side of the reaction tank 4. The main branch pipe line 14 equipped with the auxiliary branch diffuser 10 and the air control valve 12 is disposed on the floor to be connected to an external air pump 8 to diffusely supply air to the reactor 4. It is done.

The organic matter and nutrient (nitrogen, phosphorus) removal device 2 of the wastewater and wastewater is equipped with an air pump 8, a main acid engine 14, and a secondary branch engine 10 as a basic set.

In addition, the denitrification and phosphorus release reactions generated during the removal of organic matter and nutrients (nitrogen, phosphorus) from wastewater and wastewater are caused by anoxic and anaerobic conditions, and thus the reaction tank liquid can be stirred as a facility to enhance the reaction effect. A stirring device is required.

In addition to the increase in power costs and arrangement to the main mountain engine due to the separate operation of the air pump and the underwater stirrer, as well as forming a sub-branch diffuser therein, as well as causing complexity, which increases the cost of equipment There is a problem.

In addition, there are problems such as inconvenient maintenance and an increase in management cost due to the replacement of a complicated main mountain engine.

2 is a view showing the formation of aeration and airflow according to the installation of the surface aeration machine in the prior art.

The surface aerator 16 is installed so as to be slightly submerged on the water surface of the reaction tank liquid 18 of the reaction tank 4, and immediately vortices in the direction of the arrow while acting to suck out the reaction tank liquid 18 at the bottom. Stirring and aeration are done simultaneously.

In addition, in order to increase the aeration of the surface aerator 16, it is required to form a center or a short center distance capable of aeration while making the shape of the reaction tank 4 circular or square.

In addition, the surface width device 16 is known to be economical and advantageous in maintenance and excellent in oxygen transfer efficiency because it does not require a separate piping facility in an air pump and a reaction tank.

In addition, anoxic agitation is also possible when operating at low speeds, so it is economical because a separate stirrer is not required.

However, in winter, the installation of the surface aerator 16 is located on the water surface of the reaction tank liquid 18, resulting in increased contact with cold outside air, thereby lowering the temperature in the reaction tank 4, thereby affecting the growth of microorganisms. As a result, there is a disadvantage that the treatment efficiency is lowered.

In addition, the surface aeration machine 16 has a limitation in the area and the water depth that can be aerated, when the center of the surface aeration is more than a certain distance to generate a non-aeration zone, there is a problem that decreases the aeration efficiency.

Therefore, a large capacity treatment facility has a disadvantage in that the number of reactors increases, and there is a disadvantage in designing a layout of a wastewater treatment plant due to the limitation of the reactor type.

3 is a view showing the formation of aeration and airflow according to the installation of the underwater aeration apparatus in the prior art.

The underwater aeration apparatus 20 is economical, advantageous in maintenance, and excellent in oxygen transfer efficiency because there is no need for piping facilities in the reactor 4. In addition, it is economical without the need for a separate stirrer because it can cut off the air supply and anoxic stirring is possible.

On the other hand, there is a shortage of air supply by the self-suction type, there is a disadvantage to supply air by placing an air pump as an auxiliary device.

In addition, similar to the surface aerator 16, when a certain distance from the center of the underwater aerator 20 is greater than a certain distance, and when the reaction tank volume is increased, a plurality of underwater aerators may be installed in one reactor 4, but a non-aeration zone may be provided. There is a problem that occurs because the aeration efficiency is lowered.

As a facility for anoxic-stirring the reaction tank while eliminating the problems as described above, usually an underwater stirrer (see FIG. 1) is used a lot, but it is equipped with only a stirring function. It is required.

The object of the present invention devised to solve the problems of the prior art made as described above is to increase the aeration function and anaerobic reaction efficiency for supplying oxygen to the reaction tank in the organic and nutrient (nitrogen, phosphorus) removal process of OH waste water In addition to the necessary agitation function to pump wastewater (liquid transfer to the reactor), the existing liquid transfer pump can be eliminated and double aeration equipment can be reduced, and any reactor can be used in series / parallel. The present invention provides a pump-integrated stirring aeration device that can be installed in such a way that the non-aeration area can be minimized to efficiently and economically transfer aeration, agitation, and liquid.

The present invention for realizing this

Submersible motor which is driven to rotate the rotational speed by the preset information,

A flange hollow tube part mounted around the rotating shaft while symmetrically forming an air hole and a liquid hole on one side of the submersible motor;

A conveying impeller configured to transfer air and liquid to a rotating shaft in the flange hollow pipe part;

A stirring impeller mounted on the rotating shaft of the submersible motor at a position spaced at a predetermined interval from the conveying impeller;

An air inlet pipe installed in the axial direction on the outer circumferential surface of the underwater motor while being connected to the air through-hole of the flanged hollow pipe part;

A liquid inlet pipe connected to the liquid through hole of the flanged hollow pipe part and installed in parallel to the other side of the air inlet pipe in the axial direction on the outer circumferential surface of the underwater motor;

An air control valve installed at one side of the air inlet pipe so as to control the supply amount of air by an electrical signal based on preset information;

A liquid control valve installed on one side of the liquid inlet pipe to control the amount of liquid supplied by an electrical signal based on predetermined information;

It provides a pump-integrated stirring aeration device comprising a submersible motor, a control device that is installed to control the air control valve, the liquid control valve in an automatic mode or a manual mode by an electrical signal applied by predetermined information. have

The flange hollow pipe portion is provided with a pump-integrated stirring aeration device consisting of a pipe portion in which the conveying impeller is disposed, and a flange portion formed in a symmetrical position of the air cylinder and the liquid cylinder hole on one side of the tube portion.

Aeration and stirring by controlling the opening of the air control valve and the liquid control valve by closing (S1),

Controlling the closing of the air control valve and the opening of the liquid control valve to transfer and stir the liquid (S2);

Controlling the opening of the air control valve and the liquid control valve at a predetermined angle, and transferring the liquid, aeration and stirring (S3);

It is to provide a control method of a pump-integrated stirring aeration device, characterized in that the air control valve and the liquid control valve is controlled by the fully closed control step (S4).

Using the pump-integrated stirring aeration device of the present invention described above, aeration of the reaction tank liquid in the aeration process of the biological treatment process of wastewater, agitation of the reaction tank liquid in the anaerobic process, and transfer the liquid into the reaction tank is carried out collectively It is becoming.

That is, the pump-integrated stirring aeration device is installed at a suitable point under the water depth in the reactor to drive the variable speed submersible motor to close the air control valve of the air inlet pipe and open the liquid control valve of the liquid inlet pipe. After stirring, the air control valve of the air inlet pipe and the liquid control valve of the liquid inlet pipe are opened at the same time, and aeration and agitation are carried out by the conveying impeller and the stirring impeller.

When the air control valve of the air inlet pipe and the liquid control valve of the liquid inlet pipe are closed, only the stirring is performed by the stirring impeller, and the preset amount of opening and closing of the air control valve of the air supply pipe and the liquid control valve of the liquid inlet pipe is preset. Properly adjusted by the liquid transfer, aeration, and agitation are made at the same time.

1 is a view showing that the aeration and stirring equipment is configured in the reaction tank in the process of removing organic matter and nutrients (nitrogen, phosphorus) of the general wastewater, waste water.

Figure 2 shows the formation of aeration and airflow according to the installation of the surface aeration device in the prior art.

Figure 3 is a view showing the formation of aeration and airflow according to the installation of the underwater aeration apparatus in the prior art.

Figure 4 shows a pump integrated stirring aeration device according to the present invention.

5 is a view showing arrangement examples a, b, c, and d in the reaction tank of the pump-integrated stirring aeration apparatus according to the present invention;

Figure 6 is a view showing a pipe example a, b, c connected to the pump-integrated stirring aeration device according to the present invention.

7 is a diagram showing an example of the installation of the pump-integrated stirring aeration device according to the present invention.

8 is a view showing the operation a, b, c, d of the pump-integrated stirring aeration device according to the present invention.

9 is a block diagram showing a control method of the pump-integrated stirring aeration device according to the present invention.

* Description of the symbols for the main parts of the drawings *

30: stirring aeration device 32: underwater motor

34: flange heavy pipe department 36: feed impeller

38: stirring impeller 40: air inflow pipe

42: liquid inlet pipe 44: air control valve

46: liquid control valve 48: control device

50: rotating shaft 54: air vent

56: liquid through 58: tube

60: flange part

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

Figure 4 is a view showing a pump-integrated stirring aeration device according to the present invention, Figure 5 is a view showing an arrangement in the reaction tank a, b, c, d of the pump-integrated stirring aeration device according to the invention.

6 is a view showing the piping examples a, b, c connected to the pump-integrated stirring aeration apparatus according to the present invention, Figure 7 is a view showing an example of the installation of the pump-integrated stirring aeration device according to the present invention.

9 is a block diagram showing a control method of the pump-integrated stirring aeration device according to the present invention.

The pump-integrated stirring aeration device 30 includes an underwater motor 32, a flanged hollow pipe part 34, a conveying impeller 36, a stirring impeller 38, an air inlet pipe 40, a liquid inlet pipe 42, and air control It consists of the structure containing the valve 44, the liquid control valve 46, and the control apparatus 48. As shown in FIG.

The submersible motor 32 is driven by the rotational speed variable by the predetermined information of the control device 48, the rotating shaft 50 of the submersible motor 32 is a long axis of about 20 ~ 40cm.

A plurality of lifting rings 52 are attached to the outer circumferential surface of the submersible motor 32 at an upper side thereof.

In addition, the rotating shaft 50 of the submersible motor 32 has a diameter and a length, and the conveying impeller 36 for air and liquid and the stirring impeller 38 for stirring have its shape according to the required aeration amount, the liquid transfer amount, and the required aeration amount. And the size can be changed in various ways.

The flange hollow pipe part 34 is mounted in a two-stage shape having a different diameter, with the air shaft 54 and the liquid cylinder 56 symmetrically formed on one side of the submersible motor 32, with the rotation shaft 50 at the center thereof. It is made to function as a vacuum chamber in the underwater motor body in the direction of the rotation axis (50).

The flange hollow pipe part 34 is a pipe part 58 in which the conveying impeller 36 is disposed, and a flange part in which an air cylinder 54 and a liquid cylinder hole 56 are formed at symmetrical positions on one side of the pipe part 58. 60).

The flanged hollow pipe part 34 may vary in shape and size (diameter, length, etc.) according to the required aeration amount and the amount of liquid transfer. Although not shown in the drawing, for example, the start diameter of the pipe part 58 is large and ends. The diameter can be formed in a tapered shape that gradually decreases, thereby increasing the air and liquid pressure discharged to the outside.

The conveying impeller 36 is installed on the rotating shaft 50 while being disposed in the pipe part 58 in the flange hollow pipe part 34 and is assembled to enable the transfer of air and liquid.

The stirring impeller 38 is mounted on the rotating shaft 50 of the underwater motor 32 at a position spaced apart from the conveying impeller 36 by a predetermined interval for stirring.

The air inlet pipe 40 is connected along the axial direction to the outer circumferential surface of the underwater motor 32 while being connected to the air through hole 54 formed in the flange portion 60 of the flange hollow pipe portion 34.

The liquid inflow pipe 42 is connected in communication with the liquid through hole 56 formed in the flange portion 60 of the flange hollow pipe portion 34, and the air inflow pipe 40 in the axial direction to the outer circumferential surface of the underwater motor 32. It is installed in parallel on the other side.

The air control valve 44 is connected to one side of the air inlet pipe 40 so as to control the supply amount of air by an electrical signal based on predetermined information of the control device 48.

The liquid control valve 46 is connected to one side of the liquid inlet pipe 42 so as to control the supply amount of the liquid by an electrical signal based on predetermined information of the control device 48.

The air control valve 44 and the liquid control valve 46 are valves capable of appropriately controlling the supply flow rate, and are installed in various ways in the air inlet pipe 40 or the liquid inlet pipe 42 according to design specifications. Can be used.

The control unit 48 controls the submersible motor 32, the air control valve 44, and the liquid control valve 46 in an automatic mode or a manual mode set to operate by an electrical signal applied by predetermined information. Connection is being installed.

Referring to FIG. 5, an arrangement example in the reaction tank 62 of the pump-integrated stirring aeration device 30 made as described above is arranged in a counterclockwise direction at a predetermined interval on the bottom of the reaction tank 62. Thus, it is shown that the vortices in the direction of one arrow are formed counterclockwise throughout the reactor 62.

Arrangement example b shows that the plurality of pump-integrated stirring aeration devices 30 are arranged to face opposite sides so that two arrow direction vortices are formed in the reaction tank 62 to face each other.

In the arrangement example c, four pump-integrated stirring aeration devices 30 are disposed in the reaction tank 62 so as to face all directions in one direction. In the arrangement example d, the four pump-integrated stirring aeration devices are spaced in the longitudinal direction of the reaction tank 62. It is also possible to arrange the device 30 to face the inner wall of the other reaction tank (62).

In addition, it is a matter of course that various arrangements are possible without being limited to the arrangement example of the pump-integrated stirring aeration device 30.

And with reference to Figure 6 the piping examples a, b, c of the air inlet pipe 40 and the liquid inlet pipe 42 connected to the pump integrated stirring aeration device 30 of the present invention;

The air inlet pipe 40 and the liquid inlet pipe 42 connected to the variable speed motor 32 can be changed into various shapes and sizes to favor the flow and agitation of the water, and the liquid and air inlet pipe 40 ( 42 and the liquid and air control valves 46 and 44 can be variously changed according to requirements, and are not limited to the pipe examples a, b and c.

Piping example a is a case where only one supply pipe 64 capable of simultaneously supplying liquid and air to the flanged hollow pipe part 34 is formed. The air inlet pipe 40 and the liquid inlet pipe 42 are connected to the flange hollow pipe part 34. The installed air control valve 44 and the liquid control valve 46 may be controlled by an electric signal of the control device 48 by a preset beam to supply liquid or air, respectively or separately or mixed.

That is, if the air inlet pipe 40 is deleted with reference to FIG. 4, only the liquid feeding and stirring functions are provided, and if the liquid inlet pipe 42 is deleted, only the aeration and stirring functions are performed.

Piping example b shows a case in which one air inlet pipe 40 and two liquid inlet pipe 42 are connected to the flange hollow pipe part 34.

And the piping example c is the liquid inlet pipe 42 is connected to the flange hollow pipe portion 34 as conventional, the air inlet pipe 40 is formed to be connected to the flange hollow pipe portion 34 perpendicular to the underwater motor 32 In some cases, it is also possible to connect to the underwater motor 32 at various angles.

In addition, it is possible to remove the feed impeller 36 and the stirring impeller 38 separately mounted on the rotating shaft 50 of the submersible motor 32 and to install the integrated screw impeller 66.

On the other hand Figure 7 is a view showing an example of the pump-integrated stirring aeration device according to the present invention, the liquid inlet pipe 42 is connected to the liquid reservoir 68 and connected to the air pump connecting pipe 70 to the outside The air inlet pipe 40 is connected to the submersible motor 32, and the submersible motor 32 is disposed to be biased to one side of the reaction tank 62, and can be disposed toward the wall of the reaction tank 62 on the opposite side.

In addition, the air inlet pipe 40 and the liquid inlet pipe 42 are provided with liquid and air control valves 46 and 44 to control the supply amount so as to be electrically connected to the control device 48 to operate by preset information. It is done.

The pump-integrated stirring aeration device 30 is installed at a suitable position of one third from the bottom of the biological water treatment reactor 62, and the inlet starting point of the air inlet pipe 40 is exposed on the surface of the reactor 62. It is connected to the air pump, the liquid inlet pipe 42 is connected to the inlet head to the pipe flowing into the reactor 62 to minimize.

On the other hand, the pump-integrated stirring aeration device 30 may be installed in a variety of ranges that do not reduce the efficiency of the device, the power lead wire, lifting equipment, plumbing equipment, aeration aids and other equipment connected to the submersible motor 32. .

The present invention made as described above is explained by the functions a, b, c, d of Fig. 8 and Fig. 9;

Action a; The air control valve 44 is opened by the control device 48 and the liquid control valve 46 is closed by the aeration and stirring operation.

When the speed of the variable speed underwater motor 32 is controlled by an electric signal by the preset information adjusted according to the aeration and stirring (S1), the liquid around the pump-integrated stirring aeration device 30 is stirred. Propelled forward by the impeller 38 and the reaction liquid starts to stir.

At this time, the conveying impeller 36 installed in the pipe part 58 of the flange hollow pipe part 34 also rotates at the same time, thereby forming a vacuum on the flange part 60 side, thereby introducing air through the open air control valve 44. While being discharged into the reaction tank 62 by the conveying impeller 36, and then hit the rotating stirring impeller 38 to be microbubble and at the same time mixed with the liquid in the reaction tank 62, the aeration in the forward (S1).

Action b is; The air control valve 44 is closed by the control device 48 and the liquid control valve 46 is open by the liquid transfer and stirring operation.

The pump-integrated stirring aeration device operates when the control device 48 is operated by an electrical signal based on the preset information adjusted for the rotation speed of the variable speed submersible motor 32 for liquid transfer (pumping) and alternating (S2). The liquid around 30 is pushed forward by the stirring impeller 38 to start stirring the reaction liquid.

At this time, since the conveying impeller 36 installed in the pipe portion 58 of the flange hollow pipe portion 34 is also rotated at the same time, the liquid is discharged through the liquid control valve 46 opened as the vacuum is formed in the flange portion 60. After being introduced along the inlet pipe 42, it is discharged into the reaction tank 62 by the conveying impeller 36 and mixed with the liquid in the reaction tank 62 by the rotational force of the stirring impeller 38. (S2)

Action c is; By the liquid transfer, stirring and aeration operation, the air control valve 44 and the liquid control valve 46 are partially open.

When the controller 48 operates the submersible motor 32 by an electric signal by preset information adjusting the rotational speed of the variable-speed submersible motor 32 for liquid transfer (pumping) and agitation / aeration (S3). The liquid around the pump integrated stirring aeration device 30 is pushed forward by the stirring impeller 38 to agitate the liquid in the reaction tank 62.

At this time, a vacuum is formed in the flange part 60 of the flange hollow pipe part 34 by the conveying impeller 36 which rotates simultaneously with the stirring impeller 38, and the air control valve is partially opened by the formed vacuum. 44) and the appropriate amount of air and liquid passing through the liquid control valve 46 is introduced into the flange portion 60 along the air inlet pipe 40 and the liquid inlet pipe 42 and mixed with the conveying impeller 36. Is discharged into the reactor 62.

The air and the liquid are mixed and discharged into the reaction tank 62 and mixed with the liquid in the reaction tank 62 by the stirring impeller 38 to strongly aeration toward the front side (S3).

Action d; By the stirring operation, both the air control valve 44 and the liquid control valve 46 are closed.

When the controller 48 operates the submersible motor 32 according to the preset information in which the speed of the variable speed underwater motor 32 is adjusted to the stirring (S4), the liquid around the pump-integrated agitating aerator 30 is The reaction tank liquid is started to be stirred while being pushed forward by the stirring impeller 38.

At this time, even if a vacuum is generated by the rotation of the conveying impeller 36 installed in the pipe part 58 of the flange hollow pipe part 34, the air control valve 44 and the liquid control valve 46 are closed, so that no new inflow water or air is introduced. The conveying impeller 36 rotates at idle but the stirring impeller 38 continues to rotate while pushing the reaction solution toward the front side to continue stirring.

The pump-integrated stirring aeration device 30 can be placed in the lower water of the reaction tank, so that the propulsion force of the stirring impeller that can move the reaction liquid horizontally on the lower portion is large, so that it can be applied to any reaction tank shape or size It works.

Accordingly, the disadvantages of surface aeration and underwater aeration, which are existing aeration devices, can overcome the problems of non-aeration zones and the limitation of the shape and size of the reactor.

The present invention has an economical and efficient effect on organic and nutrient (nitrogen, phosphorus) removal reactors requiring aerobic and anaerobic / anaerobic conditions during biological water treatment.

In addition, one pump-integrated stirring aeration device enables liquid transfer, aeration, and agitation, which requires less equipment purchase / installation costs, and maintenance costs (power, consumables, etc.) are reduced, which is advantageous in terms of operation and maintenance. .

In addition, the agitation impeller has a large propulsion force to move the reaction liquid horizontally from the bottom of the reaction tank, thereby solving the problems of non-aeration zones of existing aeration devices and application limitation issues such as being independent of the shape and size of the reaction tank. It is an invention having an industrially useful effect.

Claims (11)

Submersible motor 32 which is driven to rotate the rotational speed by a predetermined information, and A flange formed by forming a tubular portion 58 in which the rotating shaft 50 is located at the center while the air aperture 54 and the liquid passage 56 are symmetrically formed in the flange portion 60 at one side of the submersible motor 32. Hollow pipe part 34, A conveying impeller (36) assembled to enable the conveyance of air and liquid to the rotating shaft (50) in the flange hollow pipe portion (34); A stirring impeller 38 mounted on the rotating shaft 50 of the submersible motor 32 at a position spaced apart from the conveying impeller 36 at a predetermined interval by agitation; An air inlet pipe 40 axially installed on an outer circumferential surface of the underwater motor 32 while being connected to the air through hole 54 of the flange hollow pipe part 34; A liquid inlet pipe 42 which is connected in communication with the liquid through hole 56 of the flange hollow pipe part 34 and is installed in parallel to the other side of the air inlet pipe 40 in the axial direction on the outer circumferential surface of the underwater motor 32; An air control valve 44 installed on one side of the air inlet pipe 40 to control the supply amount of air by an electrical signal based on preset information; A liquid control valve 46 installed on one side of the liquid inlet pipe 42 to control the amount of liquid supplied by an electrical signal based on predetermined information; The control device 48 is installed to control the submersible motor 32, the air control valve 44, the liquid control valve 46 to be controlled in an automatic mode or a manual mode by an electrical signal applied by predetermined information. Pump-integrated stirring aeration device, characterized in that consisting of a configuration. The stirring impeller according to claim 1, wherein the conveying impeller 36 and the conveying impeller 36 are spaced apart from the conveying impeller 36 at a rotation shaft 50 positioned at the center of the flange hollow portion 34 of the submersible motor 32. A pump-integrated stirring aeration device, characterized in that consisting of 38). The air pipe 54 of claim 1, wherein the flange hollow pipe portion 34 is symmetrical to the pipe portion 58 in which the conveying impeller 36 is disposed and the flange portion 60 formed on one side of the pipe portion 58. And an air inlet tube 40 and a liquid inlet tube 42 are connected to each other, and the pump-integrated stirring aeration device, characterized in that the installation is installed. The pump-integrated stirring aeration device according to claim 1, wherein at least one inlet pipe capable of supplying air and liquid can be connected to the flange hollow pipe part (34). According to claim 1, The pipe portion 58 of the hollow hollow pipe portion 34 may be formed in a tapered shape that the start diameter is large and the end diameter is gradually reduced to increase the air and liquid pressure discharged to the outside A pump integrated stirring aeration device. According to claim 1, wherein the air inlet pipe 40 or the liquid inlet pipe 42 connected to the flange hollow pipe portion 34 may be arranged at various angles with respect to the submersible motor 32 Stirring aeration device. The pump-integrated stirring aerator according to claim 1, characterized in that the rotating shaft (50) of the submersible motor (32) can be equipped with an integrated screw impeller (66) capable of simultaneously agitating as well as transferring air and liquid. Device. According to claim 1, The air control valve 44 is installed on one side of the air inlet pipe 40 to control the supply amount of air by an electrical signal by the predetermined information of the control device 48 Pump integrated stirring aeration device. The liquid control valve 46 is installed on one side of the liquid inlet pipe 42 so as to control the supply amount of the liquid by an electrical signal based on predetermined information of the control device 48. A pump integrated stirring aeration device. The pump integral stirring aeration device according to claim 1, wherein the air control valve (44) or the liquid control valve (46) is a hydraulic or pneumatic valve capable of appropriately controlling the supply flow rate. Controlling the opening of the air control valve 44 and the liquid control valve 46 by closing to drive the underwater motor 32 to aeration and agitate (S1), Controlling the closing of the air control valve 44 and the opening of the liquid control valve 46 to drive the submersible motor 32 to convey and stir the liquid (S2), Controlling the submersible motor 32 by controlling the opening of the air control valve 44 and the liquid control valve 46 at a predetermined angle, and transferring the liquid, aeration, and stirring (S3); The control method of the pump-integrated stirring aeration device characterized in that the control by controlling the air control valve (44) and the liquid control valve (46) by closing completely (S4) by controlling the submerged motor (32).