KR200210394Y1 - Impeller having auxiliary wings in a pump - Google Patents

Abstract

The present invention relates to an impeller of a pump having a secondary blade to increase the discharge head acting on the discharge port to increase the discharge efficiency of the fluid. The impeller sucks the fluid from the suction port by driving the motor, and has a plurality of vanes to generate a discharge head in the sucked fluid to discharge the fluid through the discharge port. The impeller also has a plurality of auxiliary blades formed at equal intervals on the rear surface in contact with the discharge port, the auxiliary blades are turned outward in the direction of rotation of the impeller, and are formed so that the outer ends thereof do not protrude from the outer circumferential surface of the impeller.

Description

Impeller having auxiliary wings in a pump}

The present invention relates to a pump, and more particularly, to an impeller of a pump having an auxiliary blade to increase the discharge efficiency of the pump, such as a magnet pump, by increasing the discharge head in the discharge port.

In general, a pump, in particular a magnet type pump, is rotatably supported by a shaft 2 with a carbon bearing 3 as shown in FIG. 1, and the first magnet plate 5 on the outer circumferential surface of the carbon bearing 3. The received impeller 4 is coupled, and the second magnet plate 7 is installed on the drive shaft of the motor installed on one side of the pump casing, and the first and second magnet plates 5 and 7 are blocked plates ( Separated by 8).

The pump of the magnet type is divided into an impeller chamber in which the impeller 4 is positioned and a motor chamber in which the motor is located by the blocking plate 8, and the first and second magnet plates 5 and 7 are respectively impeller chamber and motor chamber. Is accommodated in. In addition, the impeller chamber and the motor chamber are sealed off by an O-ring 6 disposed adjacent to the blocking plate 8, thereby preventing the fluid such as water from entering the impeller chamber into the motor chamber.

This magnet type pump is configured to rotatably drive the impeller 4 of the pump by using the magnet coupling principle between the first and second magnet plates 5 and 7, and the casing of the pump constitutes the impeller chamber. It consists of the suction casing 10 and the back casing 11 (motor housing) which comprises a motor chamber. The suction casing 10 includes a pump chamber 12 accommodating the impeller 4, a suction port 13 for sucking the conveyed fluid, and a discharge port 14 for discharging the fluid boosted by the impeller 4. The rear casing 11 is blocked from the suction casing 10 by the blocking plate 8 and the o-ring 6 as described above, and is not in contact with the fluid, and the motor 15 is accommodated as a driving source of the pump. Configure the housing.

The first magnet 5 is rotatably supported by the carbon bearing 3 and the shaft 2 installed in the impeller 4 so as to be rotationally driven by the motor 15, and the rear casing of the first magnet 5. A ring-shaped second magnet 7 is disposed on the surface opposite to 11 with the blocking plate 8 interposed therebetween, and the second magnet 7 is provided on the shaft 25 of the motor 15. .

When the second magnet 7 is rotated by the driving of the motor 15, the impeller 4 is rotated by the magnetic force of the first magnet 5 accommodated therein acting on the second magnet 7. . The impeller 4 is provided with a plurality of vanes (not shown) on the side facing the second magnet 7 to generate a suction head in the fluid sucked from the inlet 13, which is the discharge port 14. To generate a discharge head.

However, the pump as described above has a problem that when the impeller is rotated, the discharge head generated only by a plurality of vanes provided on the front of the impeller act on the discharge port, the discharge efficiency is low.

Accordingly, an object of the present invention is to solve the problems occurring in the conventional magnet type pump as described above, having a secondary wing to increase the discharge efficiency of the fluid by increasing the discharge head acting on the discharge port more To provide an impeller for the pump.

1 is a cross-sectional view schematically showing the internal structure of a typical magnet type pump.

Figure 2 is a rear view of the impeller of the pump showing a secondary blade provided on the outer peripheral surface of the impeller in accordance with the present invention.

Explanation of symbols on the main parts of the drawings

1: auxiliary wing 1a: cylinder part

4 ; Impeller 13: Inlet

14: discharge port

An object as described above, in the impeller of the pump having a plurality of vanes to suck the fluid from the suction port by the drive of the motor, to generate a discharge head in the sucked fluid to discharge the fluid through the discharge port, the back contacting the discharge port It has a plurality of auxiliary blades formed at equal intervals in the auxiliary blades outward toward the direction of rotation of the impeller, achieved by the impeller of the pump according to the present invention, characterized in that the outer end is formed so as not to protrude from the outer peripheral surface of the impeller Can be.

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

Before describing an embodiment of the present invention, the same reference numerals are given to the same parts as those of the conventional magnet type pump, and description and illustration are omitted for clarity of explanation and illustration.

2 is a rear view of the impeller of the pump, showing the auxiliary vanes provided on the outer circumferential surface of the impeller according to the present invention.

As shown in FIG. 2, the impeller 4 has a plurality of auxiliary blades 1 formed on the rear surface thereof, and the rear surface of the impeller 1 is preferably formed to face the discharge port 14, and the auxiliary blades 1 are formed in the impeller 4. They are formed at equal intervals on the circumferential portion 1a provided on the rear surface of the impeller 4 such that the ring-shaped first magnet 5 protrudes slightly from the rear surface of the impeller 4 to accommodate. As shown in FIG. 2, the auxiliary vanes 1 are outwardly facing in the direction of rotation of the impeller 4 and have a length such that their outer ends do not protrude from the outer circumferential surface of the impeller 4.

Therefore, when the fluid sucked through the suction port 13 is discharged through the discharge port 14, since the fluid is again pumped by the plurality of auxiliary blades 1 formed on the back of the impeller 4, the discharge port 14 The discharge head which acts on becomes large. Thus, the discharge efficiency of the pump is increased.

As can be seen from the above, according to the impeller of the pump having a secondary blade according to the present invention, since the fluid discharged through the discharge port is pumped again by a plurality of auxiliary blades provided on the back of the impeller, the discharge head acting on the discharge port It becomes larger than this and has the advantage that the discharge efficiency of a fluid increases.

Claims (1)

In the impeller of the pump having a plurality of vanes to suck the fluid from the suction port by the driving of the motor, to generate a discharge head to the sucked fluid to discharge the fluid through the discharge port, Impeller of the pump characterized in that it has a plurality of auxiliary blades formed at equal intervals on the back contact with the discharge port, the auxiliary blades outward toward the rotation direction of the impeller, the outer end is formed so as not to protrude from the outer peripheral surface of the impeller.