KR101024842B1 - Hydrospace agitation pump - Google Patents

Abstract

Underwater stirring pump of the present invention, the motor is installed in the housing; An impeller directly connected to the motor and having a cutting blade formed at an end of a wing to crush a fluid flowing downward; A plurality of discharge pipes selectively connected to a plurality of lower sidewalls of the housing in which the impeller is positioned so that the agitated fluid can be discharged by the impeller to selectively perform aeration and pumping; A guide member which is provided to be separated below the housing and guides the fluid flowing through a vertically formed suction port to the discharge pipe to guide discharge; And a support frame supporting the lower portion of the housing to be distanced from the floor.

Fluid, Underwater Stirring, Pump, Venturi Tube, Pumping Tube, Aeration

Description

Submerged Agitating Pump {Hydrospace agitation pump}

The present invention relates to a stirrer, and in particular, can achieve aeration (purification) and pumping of a highly viscous fluid containing various foreign substances such as concentrated wastewater, wastewater, etc., and distributes the fluid in a uniform amount through a plurality of discharge pipes It can be discharged by, and to form a cutting blade in the impeller relates to an underwater stirring pump that improves the stirring performance.

Underwater stirrers (also called aeration devices) should always be supplied with sufficient dissolved oxygen in order to cultivate or maintain active sludge (MLSS), which is primarily composed of aerobic microorganisms. In other words, it refers to a device for purifying the fluid to the level of supply and demand suitable for environmental standards through such action.

The underwater stirrer has been presented in various ways and forms, but recently, an underwater stirrer is used to submerge the impeller in water and stir fluid such as waste water according to the rotation of the impeller. Applications include sewage and sewage treatment and industrial wastewater treatment.

The above-mentioned underwater stirrer is a system in which a motor is enclosed in a housing, and the air is sucked by the self-sustaining force generated in the outer peripheral part of the impeller by the centrifugal force of the fluid generated by the rotation of the impeller directly connected to the motor.

For example, when an underwater stirrer is used in a waste water treatment machine, when the impeller is rotated, the waste water contained in the water tank is sucked into the housing through an inlet formed in the lower portion of the housing.

At this time, the impeller agitates the waste water and at the same time generates centrifugal force to discharge the stirred waste water to the discharge pipe for aeration (purification). The discharge pipe achieves aeration of the waste water by changing the flow rate of the waste water to increase the amount of dissolved oxygen.

That is, the conventional underwater stirrer can achieve the above-mentioned fluid purification purpose by utilizing the excellent oxygen dissolving effect due to the mixing action due to the impact of the fluid and the generation of fine bubbles due to the stirring convection action of the fluid.

However, the conventional underwater stirrer is provided only with the discharge pipe for aeration and can be used only for the use for aeration (purification) of wastewater. In other words, in order to purify the waste water as well as pump the fluid to the outside, a separate pump must be used, so it can be used for a single purpose only.

In the conventional underwater stirrer having a plurality of discharge pipes, since the waste water is discharged only by the centrifugal force by the rotation of the impeller, it is difficult to discharge the waste water uniformly through each discharge pipe.

Therefore, in order to solve such a conventional problem, the present invention can use the aeration function as well as the pumping function separately, so that it is possible to discharge a uniform amount of wastewater through each discharge pipe regardless of the number of discharge pipes. . In addition, by forming a cutting blade on the wing of the impeller to propose an underwater agitating pump with improved cutting and grinding performance of the fluid.

Therefore, the present invention is to solve the conventional problems as described above, by providing a plurality of discharge pipe divided into the venturi tube for aeration of the fluid and the pumping pipe for pumping, it is possible to achieve the aeration and pumping of the fluid at the same time, The purpose of the present invention is to provide an agitating pump that distributes the fluid in a uniform amount to a plurality of discharge pipes, and forms a cutting blade on the impeller to improve agitation performance.

The present invention for achieving the above object, the motor is installed; An impeller directly connected to the motor and having a cutting blade formed at an end of a wing to crush a fluid flowing downward; A plurality of discharge pipes selectively connected to a plurality of lower sidewalls of the housing in which the impeller is positioned so that the agitated fluid can be discharged by the impeller to selectively perform aeration and pumping; A guide member which is provided to be separated below the housing and guides the fluid flowing through a vertically formed suction port to the discharge pipe to guide discharge; And a support frame for supporting the lower portion of the housing to be distanced from the bottom.

Here, the plurality of discharge pipes are formed by narrowing the diameter of a portion of the venturi tube that can increase the amount of dissolved oxygen of the fluid by using the pressure deviation in accordance with the flow rate change, and the pumping pipe is installed selectively installed for pumping the fluid It is preferable that it can be used.

And, on the upper surface of the guide member to form a guide projection protruding in a circumferentially divided state around the hollow formed in the center, the fluid is uniform to the venturi tube and the pumping pipe through the flow path formed in the divided portion of the guide protrusion It should be possible to discharge it in a quantity.

In addition, the flow path forms a guide surface forming a surface from the hollow portion of the guide member to the inlet of the venturi tube and the pumping pipe at one end of the guide protrusion corresponding to the rotation direction of the impeller, the guide protrusion on the other side of the guide surface It is preferable that the fluid is guided to the venturi tube and the pumping tube through the guide surface by positioning the other end of the adjacent to the inlet of the venturi tube and the pumping tube.

On the other hand, the lower side of the guide member, it is preferable to install so as to separate the foreign matter support plate formed in the center and the foreign matter receiving groove formed on the upper surface.

And, the foreign matter receiving groove is disposed in the circumferentially divided state in the same number as the venturi tube and the pumping tube in the hollow portion of the guide member, the divided portion is preferably located in the flow path forming portion of the guide member. Do.

In addition, by introducing a fluid into the hollow portion of the foreign matter support plate may be formed a fluid inlet hole further extended from the hollow portion to the divided portion of the foreign matter receiving groove.

In addition, the support frame has a plurality of support rods having a vertical length in the lower portion of the housing so that the inflow of fluid is not hindered; And a ring-shaped support member fixed to the lower end of the support rod.

In addition, the venturi tube is preferably connected to the oxygen input tube that can supply oxygen.

In addition, the impeller is a blade that is horizontally curved along the axis of rotation of the motor is arranged in a shape corresponding to each side, the cutting blade is preferably formed perpendicular to the end of the blade.

As described above, the aeration and pumping of the fluid can be carried out at the same time to have a multi-function as well as to achieve a multi-aeration with a single underwater agitating pump there is an efficient advantage.

In addition, since the fluid can be uniformly distributed through the plurality of discharge pipes, the fluid can be discharged uniformly regardless of the number of discharge pipes.

In addition, it is possible to cut and grind the fluid by the cutting blade formed impeller has the advantage that the stirring performance is improved.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing an underwater stirring pump according to the present invention, FIG. 2 is a front view according to FIG. 1, FIG. 3 is a perspective view showing a guide member according to FIG. 1, FIG. 4 is a flow of fluid according to FIG. 5 is a perspective view of the foreign material support plate according to Figure 2, Figure 6 is a plan view according to Figure 5, Figure 7 is a cross-sectional view taken along line AA according to Figure 6, Figure 8 of the underwater stirring pump according to the present invention It is a perspective view which shows the state in which three guide protrusions were formed in the guide member.

As shown, the underwater agitating pump 100 of the present invention includes a housing 110, the impeller 130, the discharge pipe 140a, 140b, the guide member 150 and the support frame 180, the motor is installed. .

The underwater agitating pump 100 of the present invention is for agitating the fluid contained in the water tank through the rotation of the impeller 130, and the dissolution of the fluid using the vortex generation action of the fluid by the rotation of the impeller 130 It is a device for purifying rapidly by increasing the amount of oxygen. In addition, there is a function of pumping and discharging the purified fluid together with the purification function by the aeration in the water.

The housing 110 is installed to seal the motor 120 therein, and the rotation shaft of the motor 120 extends downward of the housing 110. In addition, the impeller 130 for fluid agitation is installed on the rotary shaft such that the blades rotate horizontally about the vertical axis.

The housing 110, the suction port is formed in the lower portion where the impeller 130 is located to suck the fluid, the venturi tube 140a and the pumping tube 140b through which the fluid in the tank will be described later. Is discharged through.

In addition, the inner space below the housing 110, that is, the impeller 130 is preferably formed in a cylindrical shape. Such a cylindrical structure is intended to allow the fluid to be easily rotated by causing the vortex by the rotation of the impeller 130.

As shown in FIG. 1 and FIG. 2, the impeller 130 rotates horizontally about the vertical axis of rotation of the motor 120 to stir and discharge the fluid sucked through the inlet of the housing 110.

The impeller 130 as described above, the wings (not shown) bent horizontally along the inner surface of the housing 110 around the rotation axis of the motor 120 is provided to correspond to both sides. In addition, at the end of the blade (not shown), the cutting blade 131 is formed vertically to cut and grind the fluid.

Thus, the cutting blade 131 on the blade of the impeller 130 serves to finely cut and grind the fluid during the horizontal rotation of the impeller 130.

The discharge pipes 140a and 140b form a narrow diameter of a portion of the inner circumferential surface through which the fluid is discharged, and the venturi pipe 140a capable of increasing the dissolved oxygen amount of the fluid by using the pressure deviation according to the flow rate change, and pumping for pumping the fluid. The tube is divided into 140b. The venturi tube 140a and the pumping tube 140b may be selectively applied and used.

The venturi tube 140a refers to a tube shape in which the flow rate is momentarily increased when the purified fluid passes through the narrow tube portion, and then the pressure is momentarily lowered when exiting the wide tube portion.

In addition, the venturi tube 140a may be connected to an oxygen input tube 141 capable of supplying oxygen, and the oxygen input tube 141 may supply a dissolved oxygen amount of the fluid discharged by supplying oxygen to the venturi tube 140a. By further increasing the efficiency of aeration.

The pumping pipe 140b is for discharging the fluid introduced through the lower inlet of the housing, and a pump for pumping the fluid to the outside is installed in the longitudinal direction of the pumping pipe 140b.

As shown in FIG. 3 and FIG. 4, the guide member 150 guides the fluid flowing into the inlet of the housing 110 through the hollow formed in the center to the venturi tube 140a and the pumping tube 140b. To guide, it is preferable to fasten detachably to the lower inlet portion of the housing (110).

The shape of the guide member 150 as described above is manufactured in the shape of a disc corresponding to the lower suction port of the housing 110, and a hollow portion for fluid inlet is formed at the center thereof.

Here, a plurality of fastening holes are formed vertically along the circumference of the edge of the guide member 150. That is, the guide member 150 may be fastened to be detachably corresponding to the lower edge of the housing 110 by fastening and separating the fastening member 170 through the fastening hole. The fastening member 170 is preferably a fastening method using a bolt.

In particular, the upper surface of the guide member 150 is formed with a guide protrusion 151 protruding in a circumferentially divided state around the hollow formed in the center.

The guide protrusion 151 forms a flow path 152 at the divided portion, and the fluid may be guided through the flow path 152 to the venturi tube 140a and the pumping pipe 140b and discharged.

In other words, the guide protrusion 151 is for inducing the discharge of the fluid flowing through the hollow formed in the center of the guide member 150 to the venturi tube 140a and the pumping tube 140b through the flow path 152. will be.

The guide protrusions 151 as described above are preferably formed in the same number as the venturi tube 140a and the pumping tube 140b, and each divided guide protrusion 151 is formed to be rounded along the circumference. desirable.

The flow path 152 is an inlet of the venturi tube 140a and the pumping tube 140b from the hollow portion of the guide member 150 at one end of the guide protrusion 151 corresponding to the rotation direction of the impeller 130. Guide surface 153 is formed.

On the other hand, the other end portion of the guide protrusion 151 on the other side of the guide surface 153 is disposed adjacent to the inlet portion of the venturi tube 140a and the pumping tube 140b, so that the fluid passes through the guide surface 153. The venturi tube 140a and the pumping tube 140b may be uniformly discharged.

In other words, when the fluid is rotated by the rotation of the impeller 130, the fluid hits the guide surface 153 located at the rotation radius of the fluid uniformly distributed through the venturi tube 140a and the pumping tube 140b. Allow fluid to drain immediately.

Meanwhile, as illustrated in FIGS. 5 to 7, the foreign matter support plate 160 may be further provided below the guide member 150.

The foreign material receiving plate 160 is formed in the center hollow portion, the upper surface is formed with a foreign material receiving groove 161 that can enter the foreign material sinks to the bottom.

The foreign matter receiving groove 161 is located in the circumferentially divided state in the same number as the venturi tube (140a) and the pumping tube (140b) in the hollow portion of the guide member 150, the divided portion is the guide member It is preferable to be located at the formation part of the flow path 152 of 150. FIG.

As such, when the foreign matter sinks in the foreign matter receiving groove 161, the foreign matter contained in the foreign matter receiving groove 161 may be repeatedly cut and crushed by the rotation of the impeller 130.

In addition, by introducing a fluid into the hollow portion of the foreign matter receiving plate 160 may form a fluid inlet hole 162 further extended from the hollow portion to the divided portion of the foreign matter receiving groove 161.

The fluid inlet hole 162 allows the fluid flowing into the hollow portion of the guide member 150 to be concentrated through the venturi tube 140a and the pumping tube 140b. That is, since the position of the fluid inlet hole 162 is located in the flow path forming portion of the guide member, the fluid is easily discharged to the venturi tube 140a and the pumping tube 140b while being cut and crushed by the centrifugal force of the impeller 130. To be possible.

The support frame 180 has a plurality of support rods 181 having a length in a vertical direction in the lower portion of the housing 110 so as not to prevent the inflow of the fluid, and a ring shape connected to the lower end of the support rod 181. A supporting member 182 is provided.

That is, the fluid can be easily introduced into the lower opening of the housing 110 through each of the support rods 181, and the submerged agitating pump 100 is stably positioned in the water tank by the support member 182. Can be.

As a result, the aeration and pumping of the fluid can be carried out at the same time, so that not only has multifunction but also one agitating pump can achieve multiple aeration with efficiency. Further, the fluid may be uniformly distributed through the plurality of discharge pipes 140a and 140b and discharged, so that the discharge is uniform regardless of the number of the discharge pipes 140a and 140b. In addition, the cutting blade 131 formed by the impeller 130 can be cut and pulverized the fluid is improved stirring performance.

Although the technical idea of the underwater agitating pump of the present invention has been described above with the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

Accordingly, it is a matter of course that various modifications and variations of the present invention are possible without departing from the scope of the present invention. And are included in the technical scope of the present invention.

1 is an exploded perspective view showing an underwater agitating pump according to the present invention.

2 is a front view according to FIG. 1.

Figure 3 is a perspective view of the guide member according to FIG.

4 shows a plan view of the flow of the fluid according to FIG. 3;

5 is a perspective view showing a foreign material support plate according to FIG.

6 is a plan view according to FIG. 5;

7 is a cross-sectional view taken along the line A-A according to FIG.

Figure 8 is a perspective view showing a state in which three guide protrusions are formed in the guide member of the underwater stirring pump according to the present invention.

Description of the Related Art

100: stirrer 110: housing

120: motor 130: impeller

140a: venturi tube 140b: pumping tube

141: oxygen input pipe 150: guide member

151: guide protrusion 152: euro

153: guide surface 160: foreign matter support plate

161: foreign matter receiving groove 162: fluid inlet hole

170: fastening member 180: support frame

181: support rod 182: support member

Claims (10)

A housing in which the motor is installed; An impeller directly connected to the motor and having a cutting blade formed at an end of a wing to crush a fluid flowing downward; A plurality of discharge pipes selectively connected to a plurality of lower sidewalls of the housing in which the impeller is positioned so that the agitated fluid can be discharged by the impeller to selectively perform aeration and pumping; A guide member which is provided to be separated below the housing and guides the fluid flowing through a vertically formed suction port to the discharge pipe to guide discharge; And Underwater stirring pump comprising a; support frame for supporting the lower portion of the housing at a distance from the bottom. The method of claim 1, The plurality of discharge pipes, a venturi tube that can form a narrow diameter of a portion of the inner circumferential surface through which the fluid is discharged to increase the dissolved oxygen amount of the fluid by using the pressure deviation in accordance with the flow rate change, and a pumping pipe provided with a pump for pumping the fluid Underwater stirring pump, characterized in that can be used to selectively apply. The method of claim 1, On the upper surface of the guide member, guide protrusions are formed to protrude in a circumferentially divided state around the hollow formed in the center, and the fluid is uniformly formed into the venturi tube and the pumping tube through a flow path formed in the divided portion of the guide protrusion. Underwater agitation pump, characterized in that to be guided and the amount distributed to be discharged.  The method of claim 3, The flow path forms a guide surface that forms a surface from the hollow portion of the guide member to the inlet of the venturi tube and the pumping tube at one end of the guide protrusion corresponding to the rotation direction of the impeller, Underwater stirring pump, characterized in that the other end of the guide projection is positioned adjacent to the inlet of the venturi pipe and the pumping pipe on the other side of the guide surface. The method of claim 1, Under water guide pump, characterized in that installed below the guide member to form a hollow portion in the center and to separate the foreign matter support plate formed on the upper surface of the foreign matter receiving groove. The method of claim 5, The foreign substance accommodating groove is disposed in the circumferentially divided state in the same number as the venturi tube and the pumping tube in the hollow portion of the guide member, wherein the divided portion is located in the flow path forming portion of the guide member Stirring pump. The method of claim 6, Underwater agitation pump, characterized in that the fluid flows into the hollow portion of the foreign matter receiving plate to form a fluid inlet hole further extended from the hollow portion to the divided portion of the foreign matter receiving groove. The method of claim 1, The support frame has a plurality of support rods having a vertical length in the lower portion of the housing so that the inflow of fluid is not hindered; And Underwater stirring pump comprising a; ring-shaped support member fixed to the lower end of the support rod. The method of claim 1, Underwater agitating pump, characterized in that the venturi tube is connected to the oxygen input pipe for supplying oxygen. The method of claim 1, The impeller is arranged in a shape corresponding to both sides of the wings that are horizontally curved along the axis of rotation of the motor, The cutting blade is an underwater agitating pump, characterized in that it is formed perpendicular to the end of the blade.

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