KR102635073B1 - A pump with cutting structure - Google Patents

Abstract

The present invention crushes the fluid while pumping the fluid (sludge), crushes and cuts various solid foreign substances contained in the fluid (sludge), and prevents damage and failure of the pump to ensure structural stability;
a housing having a cylindrical chamber provided therein with an inlet through which fluid flows in and an outlet through which fluid is discharged; a disk impeller fastened to a central axis rotatably provided in the chamber and having a plurality of vanes protruding in the inlet-side direction on a surface in the inlet-side direction; In a pump having a cutting structure including; a cutting member provided at the inlet of the housing and configured to cut solids contained in the fluid sucked through cross-contact with the disk impeller; The cutting member includes a binding flange that is fastened to the inlet of the housing and has a distribution hole penetrating therein, and both ends of which are respectively connected to the inner surface of the binding flange and is disposed across the distribution hole, so that the disk impeller Provided is a pump having a cutting structure including a cutting blade configured to cut solid materials while intersecting the vane blades.

Description

A pump with cutting structure}

The present invention relates to a pump for pumping sludge from livestock waste treatment plants, reservoirs, dams, and floodplains.

Specifically, while pumping fluid (sludge), solids are cut in the form of millstone crushing, thereby maximizing crushing efficiency for solids and preventing structural damage by preventing excessive crushing load on the impeller. This relates to a pump having a cut structure designed to ensure stability.

Generally, pumps for pumping fluid (sludge) are installed in livestock waste treatment plants, reservoirs, dams, flooded areas, etc. to pump fluid as needed.

These pumps are generally designed to perform pumping work only when water is completely filled into the pump chamber of the pump at the beginning of operation. Among them, the commonly used pump includes a housing having a cylindrical rotor chamber inside, and a housing of the chamber. It has a structure including an inlet and an outlet at one end, and an impeller (or disk) arranged coaxially in the chamber and connected to rotate together about its central axis.

Additionally, a plurality of rising vanes or ribs are disposed on the surface of the disk.

That is, a separate motor is supplied with power and driven to cause the impeller (or disk) to rotate in the chamber, forming suction pressure at the inlet, and thus fluid is sucked into the inlet from the outside. Afterwards, it is discharged through the outlet and pumped.

At this time, the fluid is pumped up by shear force and friction or viscous traction force generated by the vanes (ribs) provided on the disk.

Meanwhile, in Korean Patent Registration No. 10-801296 (name: Pump for sludge), as known in the gazette; In a typical vacuum suction type pump having a body with an impeller that rotates connected to the shaft of the motor to draw fluid from an inlet connected to the inlet pipe and discharge it to an outlet connected to the discharge pipe; The inlet pipe connected to the inlet described above has a space portion of a certain size inside, and in the space portion, a conventional cutter is provided, which is fixed to the rotating shaft of a small motor and rotates by the rotation of the small motor to cut and pulverize the sludge. A pump for sludge provided with a cutting means made of a tubular body is described.

And in Korean Patent Registration No. 10-1407869 (name: Rotary disk pump for sludge), as known in the gazette; A housing having a cylindrical rotor chamber therein, an inlet and an outlet at one end of the chamber, and at least two parallel devices coaxially disposed within the chamber and connected to rotate together about their central axis and having internal opposing surfaces. It includes spaced disks, the inner opposing surfaces of the disks being spaced apart at a predetermined distance when rotated to pump fluid, and a plurality of ribs being provided on the opposing surfaces protruding outward from the opposing surfaces; The inlet is provided with a driven shaft that is axially coupled to the central axis and rotates in conjunction with the central axis, and the driven shaft is provided with a cutter configured to crush sludge sucked into the inlet; The inlet is provided with a screw that is axially coupled to the driven shaft and rotates, and the inside of the inlet where the screw is located is provided with a screw pipe that is fitted with the screw to compress and induce fluid into the interior of the chamber; In the rotary disk pump for sludge, a cone-shaped pulverizing cutter is provided at the front end of the screw, and a cone-shaped vortex blade with a gradually narrowing radius for pulverizing sludge is installed; A rotary disk pump is described in which the ribs provided on the opposing surface of the disk are arranged radially with respect to the central axis, are bent in a zigzag shape, and are provided with an outward inclined angle.

Korean Patent Registration No. 10-801296 Korean Patent Registration No. 10-1407869

However, the conventional pumps described above had a problem of inefficiency due to the complicated structure of the disk for pumping the fluid and the cutting means for crushing the fluid.

In addition, the configuration of the cutting means is such that it simply cuts and cuts the solids contained in the fluid, making it difficult to refine, resulting in poor cutting quality.

The present invention was proposed to solve the above-described conventional problems, and the purpose of the present invention is to pump sludge from livestock waste treatment plants, reservoirs, dams, and floodplains, etc., while pumping fluid (sludge). Provides a pump with a cutting structure that not only maximizes the crushing efficiency of solid materials by cutting them in the form of millstone crushing, but also ensures structural stability by preventing structural damage by preventing excessive crushing load on the impeller. It's in doing.

In addition, another object of the present invention is to provide a pump having a cutting structure that improves the cutting quality by allowing fineness of solid materials such as livestock waste and waste solids (bone fragments) contained in the fluid. .

A pump having a cutting structure according to the present invention for achieving the object of the present invention as described above includes a housing having a cylindrical chamber having an inlet through which fluid flows in and an outlet through which fluid is discharged; a disk impeller fastened to a central axis rotatably provided in the chamber and having a plurality of vanes protruding in the inlet-side direction on a surface in the inlet-side direction; In a pump having a cutting structure including; a cutting member provided at the inlet of the housing and configured to cut solids contained in the fluid sucked through cross-contact with the disk impeller; The cutting member includes a binding flange that is fastened to the inlet of the housing and has a distribution hole penetrating therein, and both ends of which are respectively connected to the inner surface of the binding flange and is disposed across the distribution hole, so that the disk impeller It is characterized by including a cutting blade configured to cut solid materials while intersecting the vane wings.

The vane blades are formed in a plurality extending outward from the center of rotation of the disk impeller and are formed in a spiral shape; The cutting blade is characterized in that it is formed in a spiral shape in a direction that intersects the convex curved surface of the vane blade when the disk impeller rotates.

The pump having the cutting structure according to the present invention as described above cuts solids according to the intersection of the curved portions of the cutting blade and the vane blade while pumping fluid through the pump pressure formed through the rotational movement of the disk impeller inside the chamber. It has the effect of being pumped with its size reduced.

At this time, scissor-like cutting is achieved through the intersection of the curved surface formed in the rotation direction of the vane blade and the curved surface of the cutting blade, which has the effect of maximizing cutting efficiency.

In addition, the crushing pressure generated when crushing solids is not excessively generated by the disk impeller and cutting blades, which has the effect of preventing structural damage to the disk impeller and cutting blades.

1 is a schematic illustration showing a pump having a cutting structure according to an embodiment of the present invention.
Figure 2 is a schematic side cross-sectional illustration showing a housing constituting a pump with a cut structure according to this embodiment.
Figure 3 is a schematic illustration showing the operating state of a pump having a cutting structure according to this embodiment.
Figure 4 is a schematic side cross-sectional illustration showing a cutting member constituting a pump having a cutting structure according to this embodiment.
Figure 5 is a schematic bottom view showing a cutting member constituting a pump with a cutting structure according to this embodiment.
Figure 6 is a schematic plan view showing a cutting member constituting a pump having a cutting structure according to this embodiment.
Figure 7 is a schematic side cross-sectional illustration of a partial excerpt showing a cutting member constituting a pump having a cutting structure according to this embodiment.
Figure 8 is a schematic bottom perspective illustration showing a disk impeller constituting a pump with a cut structure according to this embodiment.
Figure 9 is a schematic side cross-sectional illustration showing a disk impeller constituting a pump with a cut structure according to this embodiment.
Figure 10 is a schematic bottom view showing a disk impeller constituting a pump with a cut structure according to this embodiment.
Figure 11 is a schematic plan view showing a disk impeller constituting a pump with a cut structure according to this embodiment.
Figure 12 is a schematic plan cross-sectional illustration showing the operating state of the disk impeller and the cutting member constituting the pump with the cutting structure according to this embodiment.

Hereinafter, with reference to the attached drawings, a pump having a cutting structure according to a preferred embodiment of the present invention will be described in detail as follows.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those with average knowledge in the art. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that identical members in each drawing may be indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that are judged to unnecessarily obscure the gist of the present invention are omitted.

1 to 12 are diagrams showing a pump 1 having a cutting structure according to an embodiment of the present invention. The pump 1 having a cutting structure according to this embodiment is mainly used in a livestock waste treatment plant, It can be suitably applied to pumping sludge containing solids from reservoirs, dams, and floodplains.

At this time, solids are pulverized while pumping the fluid (sludge) to prevent damage and failure to each component on the transport path through which the fluid is transported, thereby ensuring structural stability.

The pump 1 having a cutting structure according to this embodiment includes a housing 2 having a cylindrical chamber 23 with an inlet 21 through which fluid flows in and an outlet 22 through which fluid is discharged. ; A disk is fastened to a central axis 51 rotatably provided in the chamber 23 and is provided with a plurality of vanes 31 protruding in the inlet 21 direction on a surface in the inlet 21 side. impeller (3); A cutting member (4) is provided at the inlet (21) of the housing (2) and is configured to cut solids contained in the fluid sucked through cross-contact with the disk impeller (3).

That is, the central axis 51, which receives the rotational force generated by the driving of the separately provided motor 5, rotates, and at this time, the disk impeller 3 rotates in an eddy manner inside the chamber 23. By moving, the inside of the chamber 23 forms a vacuum state.

Accordingly, the fluid is forcibly sucked into the inlet 21 by the vacuum suction force of the chamber 23 and then pumped out through the outlet 22 to perform a pumping action.

At this time, the cutting member 4 and the vane blades 31 intersect each other, and the solid material is cut and pumped in a reduced size.

In the above, the inlet 21 may be provided at one end of the chamber 23 and disposed in the longitudinal direction of the central axis 51; The outlet (22) may be arranged on an area of the outer peripheral wall of the chamber (23) extending across the disk impeller (3); It is desirable to apply it appropriately according to the user's choice.

That is, after the fluid flows in the longitudinal direction of the central axis 51, a pumping movement may be performed to pump the fluid toward the outer circumference of the chamber 23.

In the above, the vane wings 41 are provided at the center from the outer periphery of the disk impeller 3 and extend radially on each surface extending toward the outer peripheral surface of the boss shaft to which the central axis 51 is axially coupled. What can be provided as; It is preferable that the configuration and structure selected by the user from among conventionally known technologies are appropriately applied.

In the pump 1 having the cutting structure according to the present embodiment made as described above, the cutting member 4 is fixed to the inlet 21 of the housing 2 and has a distribution hole 42 penetrated therein. The formed binding flange 41, both ends of which are respectively connected to the inner surface of the binding flange 41, is disposed across the distribution hole 42 and intersects the vane wing 31 of the disk impeller 3. It includes a cutting blade 43 configured to cut solid materials.

That is, the inside of the chamber 23 forms an eddy vortex through the rotational movement of the disk impeller 3, forming a vacuum state, and when the fluid is pumped through the inlet 21, solid matter is generated along with the fluid. It passes through the distribution hole 42 of the cutting member 4.

At this time, the vane blades 31 and the cutting blades 43 of the disk impeller 3 cross each other to cut solid matter passing through the distribution hole 42.

Accordingly, the solid material is cut and stably spread in a reduced size state, ensuring stability in use.

In the pump 1 having the cutting structure according to the present embodiment as described above, the cutting blade 43 is provided with a support hole 44 through which the longitudinal end of the central axis 51 is rotatably supported. do.

That is, as shown in FIG. 7, the central axis 51 is axially coupled to the support hole 44 and rotates in a static position, so that the rotational movement of the disk impeller 3 is stable. , implements structural stability.

In the pump 1 having the cutting structure according to this embodiment made as described above, the vane blades 31 are formed in plural numbers extending outward around the rotation center of the disk impeller 3, and have a spiral shape. It is formed by; The cutting blade 43 is formed in a spiral shape in a direction that intersects the convex curved surface of the vane blade 31 when the disk impeller 3 rotates.

That is, while the vane blades 41 and the cutting blades 43 cross each other and cut solid materials passing through the distribution hole 42, the curved portions of the cutting blades 43 and the vane blades 31 As they cross each other, the solids are cut and pumped in a reduced size.

At this time, the solid material is cut in a scissors form through the intersection of the curved surface formed in the rotation direction of the vane blade 31 and the curved surface of the cutting blade 43, thereby maximizing cutting efficiency.

In addition, the crushing pressure formed when crushing solids is not excessively generated by the disk impeller (3) and the cutting blade (43), preventing structural damage to the disk impeller (3) and the cutting blade (43). I do it.

In the pump (1) having the cutting structure according to the present embodiment as described above, the cutting member (4) is provided with a crushing material to be crushed in the form of a millstone while making surface contact with the vane blade on the outside of the distribution hole (42). A crushing portion in which grooves 45 are formed may be provided.

That is, when the vane blades 31 rotate, solid matter may be caught in the crushing grooves 45 of the crushing portion, resulting in crushing in the form of a millstone movement.

Accordingly, in particular, when pumping sludge containing livestock waste and waste solids (bone fragments, etc.), it can be suitably applied to perform stable pumping work by grinding and crushing the livestock waste and waste solids in the form of a millstone operation.

In the above, the crushing grooves 45 may be formed to be curved in the same curved direction as the cutting blade 43.

That is, while the fluids are eddy in the curved direction of the cutting blade 43, the crushing grooves 45 curved in the same direction grind and crush the livestock waste and waste solids in the form of a millstone, thereby improving crushing efficiency. You can.

In the above, the crushing grooves 45 are formed in a curved shape with a length in the radial direction centered on the distribution hole 42, and their terminal ends are open to the inside of the chamber 23 to crush each of the crushing grooves 45. Shredded material may be guided into the chamber 23 through grooves 45 .

That is, the solids contained in the fluid (sludge) continuously flowing through the distribution hole 42 are crushed in a millstone manner between the crushing grooves 45 and the vane wings 31 and moved outward. As the fluid is guided into the chamber 23 through the crushing grooves 45, the fluid can flow more stably.

In the pump (1) having the cutting structure according to this embodiment made as described above, the disk impeller (3) includes a disk plate (32) axially coupled to the central axis (51), and a disk plate (32) of the disk plate (32). It includes the vane wing 31 provided on one side; On the surface of the disk plate 32, where the vane wing 31 is not disposed and which faces the inner side of the chamber 23, there is an inner side of the chamber 23 and the disk plate 32. The guided shredding blade 33, which crushes the fluid flowing through it by guiding it in an outward direction, may be formed with a length extending from the center to the outside.

In other words, the pumping operation can be performed more stably by guiding the fluid flowing between the inner surface of the chamber 23 and the disk plate 32 through the guided crushing blade 33 while crushing it to the outside.

In the above, a plurality of guided crushing blades 33 are formed radially on the disk plate 32 with a length extending from the center to the outside, and may be formed to be curved in the rotation direction of the disk impeller 3.

That is, the plurality of guided crushing blades 33 can pressurize and guide fluid outward through each curved surface during the rotational movement of the disk impeller 3.

Accordingly, crushing and induction of fluid can be performed more efficiently.

One embodiment of the present invention described above is merely illustrative, and those skilled in the art will be able to appreciate that various modifications and other equivalent embodiments are possible. . Therefore, it will be understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims. In addition, the present invention should be understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims.

1: Pump with cutting structure
2: Housing 21: Inlet
22: outlet 23: chamber
3: Disk impeller 31: Vane wings
32: Disc plate 33: Guided crushing blade
4: Cutting member 41: Binding flange
42: distribution hole 43: cutting blade
44: support hole 45: crushing groove
5: Motor 51: Central axis

Claims (2)

A housing (2) having a cylindrical chamber (23) with an inlet (21) through which fluid flows in and an outlet (22) through which fluid is discharged; A plurality of vane blades ( A disk impeller (3) provided with 31); A binding flange 41 is fixed to the inlet 21 of the housing 2 and has a distribution hole 42 penetrating therein, and both ends are connected to the inner surface of the binding flange 41, respectively, and the distribution hole 41 is fixed to the inlet 21 of the housing 2. Cutting having a cutting blade (43) disposed across (42) and formed in a spiral shape in a direction that intersects the convex curved surface of the vane blade (31) of the disk impeller (3) while facing the convex curved surface. In the pump (1) having a cut structure including a member (4);
In the cutting member (4),
On the outside of the distribution hole (42), a crushing portion is provided with crushing grooves (45) formed in surface contact with the vane blades (31) and crushed into a millstone shape;
The chamber 23 is axially coupled to the central axis 51 of the disk impeller 3 and the vane wing 31 is not disposed on the disk plate 32 on one side of which the vane wing 31 is provided. ) on the surface facing closely to the inner surface of the
The fluid flowing between the inner surface of the chamber 23 and the disk plate 32 is guided outward and crushed, and is formed radially with a length from the center outward, and the disk impeller 3 A pump having a cutting structure, characterized in that a plurality of guided crushing blades (33) curved in the direction of rotation are formed. delete

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