KR100731838B1 - Pump and pumping system utilizing the same - Google Patents

Abstract

A pump and a pumping system utilizing the same are provided to improve the pumping efficiency of water by using rotary force and centrifugal force of a screw. A rotor(32) has an inner bucket(33a) supported by a rotary shaft(31) installed at a frame. An outer bucket(33b) covers the inner bucket at a predetermined gap. A screw pumping part(33) has a plurality of vanes(33d) for forming helical pumping paths(33c) between the inner bucket and the outer bucket. A centrifugal pumping part(34) is installed at an upper part of the screw pumping part for discharging water pumped by the screw pumping part in a radial direction by a centrifugal force.

Description

Pump and pumping system utilizing the same

1 is a cross-sectional view schematically showing a state in which the water intake device is installed according to the present invention,

2 is a cross-sectional view of the water intake device installed in the tower according to the present invention,

3 is a cross-sectional view showing another embodiment of the intake apparatus according to the present invention,

Figure 4 is a cross-sectional view showing another embodiment of the intake apparatus according to the present invention,

5 is a cross-sectional view showing another embodiment of the intake apparatus according to the present invention;

6 is a partial ablation perspective view showing an extract of the rotor shown in FIG.

Figure 7 is a perspective view showing another embodiment of the drive unit installed in the tower,

Figure 8 is a sectional view showing another embodiment of the water intake means according to the present invention.

The present invention relates to a pump and an intake apparatus using the same, and more particularly, to a pump and an intake apparatus using the improved rotor to increase the pumping efficiency of fresh water or seawater.

Pumps are generally classified broadly in terms of turbo and volume in terms of their operating principle. The turbo type pump has a relatively small device compared to the discharge flow rate and is used for a low head large capacity, such as a centrifugal pump. The volumetric pump is used for high head holding capacity, and the discharge flow rate is almost constant under any discharge head condition, including a gear pump, a reciprocating pump, a screw pump, and the like.

The centrifugal pump is composed of an impeller and a casing. The centrifugal pump rotates the fluid to be pumped at a high speed by the impeller to generate centrifugal force. The gear pump is a method in which two gears mesh with each other in a casing and rotate to push the fluid from the suction side to the discharge side. This gear pump is suitable for small-capacity ones and is mainly used for delivering oil such as lubricating oil.

On the other hand, the screw pump discloses a configuration in which a screw impeller having an anti-scattering film is inserted into the case member having a coupler and a plurality of guide feathers as disclosed in Korean Utility Model No. 0167567 to form a screw actuator.

As can be seen from the comparison of the configuration as described above, the centrifugal pump as a turbo pump has a representative advantage in that it can deliver a large flow rate, while the head of the pump is small, and the gear pump as a volume pump can increase the head of the pump arbitrarily. While high efficiency can be obtained, there is a point in that the delivery flow rate cannot be increased due to its structure. The screw pump is capable of pumping a large amount of water, but has a disadvantage in that it cannot raise the head.

And when using the screw pump or centrifugal pump to take fresh water for tap water or take seawater for supply to the farm, the pumping efficiency of the water is relatively low, there is a problem that takes a lot of maintenance costs.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a pump and a water intake apparatus using the same, which can relatively increase the pumping efficiency of water by using the rotational force and the centrifugal force of the screw.

Another object of the present invention is to provide a water intake device that is simple to maintain and easy to adjust the depth of intake.

Still another object of the present invention is to provide a water intake device capable of maintaining a water intake position constant from the surface of the water and converting the centrifugal force into the upward force of water.

The pump of the present invention for achieving the above object,

A screw pumping unit having a rotating cylinder rotatably supported by a rotating shaft installed in the frame, a screw installed between the inner circumferential surface of the rotating cylinder and the outer circumferential surface of the rotating shaft to form a pumping passage, and installed on top of the screw pumping unit And a rotor having a centrifugal pump for discharging water pumped by the pump in radial direction by centrifugal force.

In the present invention, the screw pumping part and the rotating cylinder and the screw gradually decreases in diameter from the lower end to the centrifugal pumping part.

Alternatively, the pump of the present invention includes an inner cylinder rotatably supported by a rotating shaft installed in the frame, an outer cylinder surrounding the inner cylinder at predetermined intervals, and a plurality of vanes forming a spiral pumping passage between the inner cylinder and the outer cylinder. And a rotor having a screw pumping unit and a centrifugal pumping unit installed on the screw pumping unit and discharging water pumped by the screw pumping unit by a centrifugal force in a radial direction.

In the present invention, between the outer circumferential surface of the inner cylinder and the outer cylinder is kept constant, the diameter of the inner cylinder and the outer cylinder gradually increases from the lower end to the upper side.

Pumping device of the present invention for achieving the above object

A tower having an internal space and a drip tray formed at an upper portion thereof, a discharge pipe connecting the drip tray to a reservoir installed on land;

A water intake pipe communicating with an internal space at a lower end side of the tower and extending to a water intake and having an end side bent upward;

A rotating shaft installed in the inner space of the tower to pump water introduced into the inner space through the water intake pipe to the drip tray, and installed vertically to the tower;

An inner cylinder having a bearing portion slidably installed along the rotating shaft and a space portion providing the buoyancy, an outer cylinder surrounding the inner cylinder at predetermined intervals, and a plurality of feathers forming a spiral pumping passage between the inner cylinder and the outer cylinder; A rotor provided with a screw pumping unit having a centrifugal pumping unit installed on the screw pumping unit and discharging water pumped by the screw pumping unit by a centrifugal force in a radial direction;

And a driving means installed in the tower to drive the rotor.

In the present invention, the drive means has a driven pulley having a length substantially the same as the stroke distance according to the rise of the rotor along the axis of rotation in the bearing portion, and a drive pulley installed in the tower connected by the driven pulley and the belt With a motor.

The screw pumping part is constantly maintained between the outer circumferential surface of the inner cylinder and the outer cylinder, and the diameter of the inner cylinder and the outer cylinder gradually increases from the lower end to the upper side.

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

The water intake device according to the present invention is installed on the side adjacent to the river, lake, sea, and boils fresh water, seawater, etc. to the coast side through a water intake pipe extending to the intake side, and then pumps it to a storage tank installed on land. 1 and 2 are shown.

Referring to the drawings, the water intake device 10 is installed on the river, lake or beach, the inner space 11 is formed therein and the tower 13 formed with a drip tray 12 on the top, and is installed on land A storage tank 100 for storing water to supply water to aquaculture farms, water purification systems, and industrial water, and a discharge pipe 14 connecting the reservoir 12 and the reservoir 100 installed at an upper side of the tower 13. ) And the water intake pipe 16 communicating with the inner space 11 of the lower end side of the tower 13 and extending to the deep sea side of the river, lake, and sea, and having the end side bent to the upper side. Equipped.

In addition, the inner space portion 11 of the tower 13, the drip tray so that the seawater supplied to the inner space portion 11 through the intake pipe 16 can be discharged to the storage tank 100 side through the discharge pipe 14 And pumping means 20 for pumping to 12.

The tower 13 is a concrete structure, the inner space portion 11 is formed in a vertical direction therein, the water receiving portion 12 along the inner peripheral surface on the upper side to receive the water supplied from the pumping means 20 Is formed. The drip unit 12 has a flow path formed along the inner circumferential surface of the tower so that water pumped from the centrifugal pump of the rotor to be described later is discharged to the discharge pipe 14.

Although not shown in the drawings, an observatory may be installed on the top of the tower, and additional facilities may be installed on the outer circumferential surface of the tower 13.

The pumping means 20 is for pumping water introduced into the inner space 11 of the tower 13 through the water intake pipe 16 to the drip tray 12, an embodiment of which is shown in FIG. Showed.

Referring to the drawings, the pumping means 20 is installed in the inner space portion 11 of the tower 13, the water receiving portion 12 to the water introduced into the inner space portion 11 through the intake pipe 16 A rotor 21 having a screw pumping part 22 for raising water vertically and a centrifugal pumping part 23 for pumping water radially from the screw pumping part 21 by pumping to the side; The drive part 25 which drives the rotating shaft 24 of 21 is provided.

The screw pumping part 22 of the rotor 21 is a rotary cylinder (22a) wrapped around a predetermined interval around the rotating shaft 24 is installed so as to be able to rotate perpendicular to the inner space 11, and the A screw 22c is provided between the outer circumferential surface of the rotary shaft 24 and the inner circumferential surface of the rotary cylinder 22a to form a spiral pumping passage 22b. Here, as shown in FIG. 3, the screw pumping part 22 has a diameter of the screw 22c and the rotating cylinder 22a gradually narrowing from the lower part to the upper part so that the area of the initial intake amount is relatively large. desirable.

The centrifugal pumping portion 23 of the rotor is provided on the lower plate member 23a extending radially from the upper end of the rotary cylinder 22a, the rotary shaft 24 and spaced apart from the lower plate member 23a by a predetermined distance. An upper plate member 23b and a braid 23c extending radially about the rotation shaft 24 between the upper plate member 23b and the lower plate member 23a. The braid 23c is formed to be inclined at a predetermined angle in the spiral direction. Since the rotating cylinder 22a is connected by the rotating shaft 24 and the screw 22c, the screw pumping part 22 and the centrifugal pumping part 23 rotate together with the rotating shaft 24.

On the other hand, both ends of the rotor 21 is rotatably installed by supporting both ends of the rotating shaft 24 in the tower, and at least one side of the outer circumferential surface of the screw pumping part is formed in a journal bearing or roller to prevent vibration during rotation. It is preferable to be supported by. And it is obvious that the rotating shaft 24 can be rotatably supported by a separate frame.

In addition, the driving unit 25 may be installed at an upper portion of the tower 13 to form a motor 25a for driving the rotating shaft 24. The drive shaft and the rotation shaft 24 of the motor 25a may be made by power transmission mechanisms such as driving and driven pulleys and belts.

4 shows another embodiment of the pumping means 30 according to the present invention. In this embodiment, the same reference numerals as the above embodiment indicate the same components.

Referring to the drawings, the pumping means 30 is a rotary shaft 31 installed perpendicular to the tower 13 and the rotor 32 installed on the rotary shaft, as in the above-described embodiment to drive the rotary shaft 31 The drive part 35 is provided.

The rotor 32 includes a screw pumping part 33 and a centrifugal pumping part 34. The screw pumping part 33 has an inner cylinder 33a coaxially installed with the rotation shaft 31, and the inner Outer cylinder 33b having a diameter relatively larger than the diameter of the inner cylinder 33a so as to be spaced a predetermined interval apart, and a feather 33d which is provided between the inner cylinder 33a and the outer cylinder 33b to form pumping passages 33c. ).

The centrifugal pump 34 has a structure substantially the same as that of the embodiment, and includes a lower plate member 34a extending radially from an upper end of the outer cylinder 33b and the rotary shaft 31 and the lower plate. An upper plate member 34b spaced apart from the member 34a by a predetermined distance, and a braid 34c extending radially about the rotation shaft 31 between the upper plate member 34b and the lower plate member 34a. ). The number of the braids 34c is the same as the number of the blades 33d, and is preferably positioned on an extension line in the radial direction from the blades 33d.

Since the driving unit 35 has the same structure as the above embodiment, it will not be described again.

5 and 6 show another embodiment of the pumping means 40 according to the present invention.

Referring to the drawings, the pumping means 40 can be moved up and down along the rotary shaft 41 by buoyancy by the rotary shaft 41 is installed perpendicular to the tower 13 and the water introduced into the interior space of the tower. It is provided with a rotor 42 and a drive unit 46 is installed in the tower 13 to rotate the rotor 42.

The rotor 42 has a space for providing buoyancy, and includes a screw pump 43 and a centrifugal pump 44. The screw pumping unit 43 has a floating space (43a) and the inner cylinder 43b which is slidably installed along the rotating shaft 41, and the outer cylinder surrounding the inner cylinder 43b to be spaced apart from the inner cylinder 43b by a predetermined interval. 43c and a collar 43e provided between the inner cylinder 43b and the outer cylinder 43c to form a pumping passage 43d.

In the installation slidable with respect to the rotary shaft 41, a bearing portion 43f penetrating through the floating space of the inner cylinder 43b is installed, and the rotary shaft 41 is slidably supported by the bearing portion 43f. Has A bearing 43g may be installed between the bearing 43f and the rotating shaft 41.

 And the centrifugal pump 44 has a structure substantially the same as the above embodiment will not be described again.

The drive unit 46 extends along the rotary shaft 41 from the upper side of the rotor 42 and is installed on the rotary pulley 46a having a predetermined diameter and the rotary shaft of the motor 46b installed in the tower 13. A drive pulley 46c and a belt 46d for connecting the driven pulley 46a and the drive pulley 46c are provided. The driven pulley 46a of the drive unit has a length corresponding to the stroke distance according to the rise of the rotor 42.

As shown in FIG. 7, the guide 51 is installed on the inner circumferential surface of the tower 13, and the motor 53 is installed on the frame 52 which is elevated along the guide 51. And a rotation shaft 54 connected to the driving shaft of 53. In this case, the rotor 42 should be installed to be freely elevated by the floating space, and the rotor 42 may be rotatably supported by a plurality of guide rollers installed on the inner circumferential surface of the tower 13.

Meanwhile, as shown in FIG. 8, the screw pumping unit 43 maintains the width of the pumping space, that is, the interval between the inner cylinder 43b and the outer cylinder 43c, and maintains the inner cylinder 43b and the outer cylinder 43c. It is preferable to make the diameter gradually wider toward this upward direction.

  Referring to the operation of the water intake device according to the invention configured as described above are as follows.

First, as shown in FIGS. 1 and 2, clean water flows into the inner space 11 of the tower 13 through a water intake pipe 16 extending from the tower 13. At this time, the end of the intake pipe 16 is bent upward from the intake paper, and the hood 15 is installed at the end thereof, it is possible to prevent the inflow of water or foreign matter through the intake pipe.

As shown in FIG. 2, the rotor 21 is rotated as the motor, which is the driving unit 25, is driven as water is introduced into the internal space 11 as described above. The water rises through the helical passage formed by the helical screw 22c provided between the 22a and the rotating shaft 24, that is, the pumping passage 22b. The water pumped in this way is pumped back in the radial direction by the centrifugal force by the centrifugal pumping part 23. In this process, since the suction power is provided to the screw pumping part 22 by the centrifugal pumping part 23, the pumping efficiency can be increased. In particular, as shown in FIG. 3, when the lower portion of the screw pumping part 22 is enlarged, the initial intake amount may be increased, thereby increasing the efficiency of the pump. That is, since the linear velocity of the screw at the lower end of the screw pumping part 22 is increased, the water withdrawal force can be increased.

The pumped water is stored in the reservoir 100 through the drip tray 12 and the discharge pipe 14.

Meanwhile, when the floating space 43a is formed in the rotor 42 as shown in FIGS. 5 and 6, the rotor 42 is floated by the water introduced into the inner space of the tower 13. The belt 46d connecting the driving pulley 46c and the driven pulley 46a of the 46b is lifted by the driven pulley 46a to transmit the rotational force of the motor to the rotor.

Particularly, as shown in FIG. 8, when the width of the screw pumping part gradually widens from the lower end to the upper part, the centrifugal force due to the rotation of the rotor 42 acts on the pumped water. Since it is formed in a spiral shape and maintains an inclined state, the component force that raises the water in the radial direction by centrifugal force is generated.

Therefore, the pumping force of the water pumped by the screw pumping unit can be increased, and the pumped water can be pumped again by the centrifugal pumping unit, thereby increasing pumping efficiency.

In addition, the pumping means of lifting in the floating space may pump water introduced into the inner space 11 of the tower 13 at a constant depth adjacent to the surface layer. In particular, when taking in seawater, water may be pumped regardless of changes in the seawater level, which flows into the inner space 11 by the difference between tides.

As described above, the pump according to the present invention and the intake apparatus using the same have a pump pumping unit and a centrifugal pumping unit installed in the tower, so the pumping power of the water is simultaneously applied by the lifting force and suction force of the water when the pump is pumped. It can increase.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (7)

delete delete A screw pumping unit having an inner cylinder rotatably supported by a rotating shaft installed in the frame, an outer cylinder surrounding the inner cylinder at predetermined intervals, and a plurality of feathers forming a spiral pumping passage between the inner cylinder and the outer cylinder; And a rotor having a centrifugal pumping part installed above the screw pumping part and discharging water pumped by the screw pumping part by a centrifugal force in a radial direction. The method of claim 3, wherein A pump is characterized in that the space between the outer circumferential surface of the inner cylinder and the outer cylinder is kept constant, and the diameter of the inner cylinder and the outer cylinder gradually increases from the lower end to the upper side. It is installed in the water intake is formed in the inner space portion, the tower having a water reservoir in the upper portion, the discharge pipe connecting the water reservoir and the reservoir installed on land, A water intake pipe communicating with an internal space at a lower end side of the tower and extending to a water intake and having an end side bent upward; A rotating shaft installed in the inner space of the tower to pump water introduced into the inner space through the water intake pipe to the drip tray, and installed vertically to the tower; An inner cylinder having a bearing portion slidably installed along the rotating shaft and a space portion providing the buoyancy, an outer cylinder surrounding the inner cylinder at predetermined intervals, and a plurality of feathers forming a spiral pumping passage between the inner cylinder and the outer cylinder; A rotor provided with a screw pumping unit having a centrifugal pumping unit installed on the screw pumping unit and discharging water pumped by the screw pumping unit by a centrifugal force in a radial direction; And a driving means installed in the tower to drive the rotor. The method of claim 5, The driving means includes a motor having a driven pulley having a length substantially equal to a stroke distance due to the rise of the rotor along the axis of rotation along the shaft, and a driving pulley installed in the tower and connected by the driven pulley and a belt. Intake device, characterized in that. The method of claim 6, The screw pumping portion is maintained between the outer peripheral surface and the outer cylinder of the inner cylinder is constant, the water intake device characterized in that the diameter of the inner cylinder and the outer cylinder gradually increases from the lower end to the upper side.

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