KR101200443B1

KR101200443B1 - Submerged motor pump of multi series connection type

Info

Publication number: KR101200443B1
Application number: KR20100077818A
Authority: KR
Inventors: 송을수
Original assignee: 송을수
Priority date: 2010-08-12
Filing date: 2010-08-12
Publication date: 2012-11-12
Also published as: KR20120015594A

Abstract

The present invention relates to a submersible motor pump, and more particularly, to a series connected multi-stage submersible motor pump capable of supplying fire water to fast narrow roads and roads and remote forest fires.
To this end, the present invention is a housing in which a suction port for the fluid is sucked is formed on one side and the discharge hole for discharging the fluid is formed on the other side, a center tube disposed to penetrate the inside of the housing in the longitudinal direction and having a hollow, the It is disposed to rotate about the center tube, a rotor having a magnetic force, an impeller formed in the inner shape of the rotor, formed in a screw shape, close to the outer peripheral surface of the rotor, when the power is applied It provides a series connected multi-stage submersible motor pump comprising a stator for rotating the rotor and a power supply line disposed along the inside of the center tube for supplying power to the stator.

Description

SUBMERGED MOTOR PUMP OF MULTI SERIES CONNECTION TYPE}

The present invention relates to a submersible motor pump, and more particularly, to a series connected multi-stage submersible motor pump capable of supplying fire water to fast narrow roads and roads and remote forest fires.

Recently, various vehicles for forest fire extinguishing have been developed. In particular, a variety of small forest fire extinguishing vehicles with improved maneuverability to move quickly to the forest fire generation area has been developed.

Such a fire-fired vehicle is equipped with a fire-water spraying facility, for example, a fire-water tank, a fire-water pump, a water spray hose, and the like.

By the way, such a conventional forest fire extinguishing vehicle has the advantage of being capable of rapid forest fire extinguishing due to its excellent maneuverability, but it cannot move on narrow roads and narrows, that is, narrow and sloped roads, swamps and mountainous terrain, etc. Therefore, it is pointed out that remote fire extinguishing far from the vehicle is impossible.

On the other hand, such disadvantages cause a problem in that, in the case of remote forest fire extinguishing, it is necessary to carry out the forest fire extinguishing work by carrying the individual personnel carry fire extinguishing equipment. In particular, when the fire water used in the man-fire forest fire extinguishing equipment is exhausted, a lot of manpower and time are consumed, such as a worker has to return to the water supply source and recharge it.

In the case of a large forest fire, the firefighting operation is carried out using a helicopter, but this also has a very limited amount of water that can be loaded on the helicopter. Since it has to travel long distances, it does not really help the actual fire extinguishing.

Therefore, the present invention was created in order to solve the above problems, the object of the present invention is a forest fire or an area where wildfires are expected to occur during the fire can not enter the fire extinguishing vehicles, such as fire trucks do not enter the forest Multi-stage pumps are constructed in series in areas where human life and property damages are expected, and the pumps are continuously supplied with water from the source, minimizing the loss of water pressure and delivering water quickly over long distances. It is possible to extinguish forest fires early and to deal with the remaining fires.

Another object of the present invention is to increase the head flow rate by forming a plurality of impellers in a screw shape along the longitudinal direction of the inner circumferential surface of the rotor.

Still another object of the present invention is to stably supply power by installing the power supply line inside the housing without installing the power supply line outside.

Another object of the present invention is to transfer the fluid to a greater distance by increasing the pressure of the fluid by a predetermined amount due to the change of the cross-sectional area in the housing during the passage through each motor pump.

In accordance with an embodiment of the present invention for achieving this purpose, a series-connected multi-stage submersible motor pump has a housing in which a suction port is formed for suction of fluid on one side and a discharge port for discharge of fluid is formed in the other side, and the inside of the housing is formed. A center tube disposed to penetrate in the longitudinal direction and having a hollow, disposed to rotate about the center tube, a rotor having a magnetic force, an impeller formed on an inner circumferential side of the rotor, and formed in a screw shape, the rotor And a power supply line disposed near the outer circumferential surface of the electron and disposed along the inside of the center tube to supply power to the stator for rotating the rotor when power is applied.

In addition, the suction port is formed on the outer circumferential side, characterized in that it further comprises a connecting portion provided so that the hose is connected and the disk-shaped power supply connecting plate formed to be fitted to the inner diameter of the connecting portion.

In addition, the impeller is disposed on the inner circumferential surface of the rotor, it characterized in that a plurality of impeller is arranged in a screw shape along the longitudinal direction.

In addition, a plurality of reinforcing members are formed in the longitudinal direction of the impeller to support the shape of the impeller in the axial direction.

In addition, the power supply line is branched radially from one end thereof is provided separately and is connected to the power connection plate.

In addition, it is formed to surround the outer peripheral surface from one end of the center tube, characterized in that the flow path is formed so that the fluid can move along the longitudinal direction of the center tube.

The flow path may further include a flow chamber formed as a space between the impeller and the outer circumferential surface of the rotor so as to have a wider cross-sectional area than the suction port and the discharge port at the center of the center tube.

As described above, according to the series-connected multi-stage submersible motor pump according to an embodiment of the present invention, by configuring a plurality of separately separated motor pump through the hose, the pressure of the fluid can be freely adjusted as desired It has the effect of improving the reliability.

In addition, due to the plurality of pumps connected in series as described above, it is possible to generate a strong suction pressure and a discharge pressure during rotation, such a series pump is less noise and vibration, the relatively simple configuration with a relatively high head flow rate It has an effect that can be shown.

In addition, since the power supply path is formed to penetrate the center of the pump, and the pumps are connected to each other at the same time as the pumps are connected to each other, the structure is simple, thereby reducing manufacturing costs and facilitating assembly work. .

In addition, since the distribution chamber, which is a space formed on the inner circumferential surface of the rotor, is provided to increase the cross-sectional area inside the housing than the inlet port, and the cross-sectional area of the outlet port is relatively reduced, the fluid pressure is maintained or increased a predetermined amount to be transported to a greater distance. It is effective.

1 is a cross-sectional view of a series connected multi-stage submersible motor pump according to an embodiment of the present invention.
2 is a perspective view of a part of the impeller of the series-connected multi-stage submersible motor pump according to an embodiment of the present invention.
3 is a state diagram showing the use of a plurality of series connected multi-stage submersible motor pump according to an embodiment of the present invention.

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

1 is a partial cross-sectional view of a series connected multi-stage submersible motor pump according to an embodiment of the present invention.

As shown in FIG. 1, a series-connected multi-stage submersible motor pump according to an embodiment of the present invention includes a housing 10, a rotor 30, a stator 40, and a center tube 20.

One end of the housing 10 is formed with an inlet 11 opened to one side to suck the fluid.

The suction port 11 is formed so that the cross section protrudes by a predetermined distance in a circular shape, and a connecting portion 13 may be formed on the outer circumferential surface thereof. Although the connection portion 13 is shown only in the outlet 12 side, which will be described later, the connection portion 13 should also be formed at the suction port 11 side for connection with the hose 60 on both sides of the submersible motor pump 1. Of course.

The connection part 13 may be communicated through one end of the hose 60, which is provided separately, through screwing or interference fitting, and the other end of the hose 60 communicates with another suction port.

In addition, when the hose 60 is coupled to the connecting portion 13, it is preferable that a separate power line is installed inside the hose 60 so as to correspond to the power connection plate 16 to be described later. Do.

As described above, a plurality of submersible motor pumps of the present embodiment may be connected to each other through the hose 60.

Similarly, an outlet 12 is formed on the opposite side of the inlet 11 to discharge the fluid from the inside of the housing 10 to the outside.

Here, it will be apparent that the shape of the outlet 12 should be the same as the shape of the suction port 11.

The power connection plate 16 is coupled to the inner circumferential surface of the suction port 11.

In the center of the power connection plate 16 is provided with a through-hole (not shown) formed to penetrate through the center tube 20 to be described later.

The inner diameter of the through hole is made to be the same as the outer diameter of the center tube 20 to be closely coupled.

In this case, a separate sealing member (not shown) may be disposed at a portion where the inner circumferential surface of the through hole and the outer circumferential surface of the center tube 20 are in contact with each other.

The center tube 20 is disposed in such a manner that penetrates the inlet 11 and the outlet 12 along the lengthwise direction, and a hollow is formed therein.

The power supply line 21 is formed in the hollow of the center tube 20.

The power supply line 21 is provided to supply power to the stator 40 which will be described later, and is cut off from the outside by the center tube 20.

At this time, one end of the power supply line 21 is connected to the power connecting plate 16 and at the same time is cut off from the outside, the opposite side of the power connecting plate 16 is in contact with another power connecting plate 16 Ensure that power is supplied continuously. That is, the power connection plate 16 is formed to be connected to the wire pre-installed inside the hose 60 when combined with another underwater motor pump.

The stator 40 includes a coil bundle (not shown), by which the magnetic force is generated when the current is applied by the coil bundle, and rotates the rotor 30 disposed on the inner circumferential side thereof.

That is, the rotor 30 is disposed to be rotatable inside the housing 10 in a cylindrical shape forming a wide space therein, and is supported inside the housing 10 to facilitate such rotation. A plurality of separate bearings (not shown) may be disposed at the site.

Figure 2 is a perspective view showing a partially cut rotor of the series-connected multi-stage underwater motor pump according to an embodiment of the present invention.

As shown in FIG. 2, a plurality of impellers 31 are disposed on the inner circumferential surface of the rotor 30 in the longitudinal direction thereof.

In this case, the impeller 31 is formed in a substantially screw shape along the inner circumferential surface of the rotor, and is provided to have a distribution chamber 15 which is a space formed between the impeller 31 and the rotor 30. It is formed to be spaced apart.

That is, when the rotor 30 rotates, the impeller 31 rotates at the same time, and the fluid is sucked into the inlet 11 by the impeller 31 and forced toward the outlet 12 at the same time. Allow it to proceed.

Here, the cross-sectional area of the rotor 30 is increased due to the distribution chamber 15 which is a space formed by a predetermined interval from the inner circumferential surface of the rotor 30.

Accordingly, the fluid passing through the suction port 11 temporarily passes through the distribution chamber 15 of the rotor 30 having a wider cross section, so that the pressure is lowered, but the cross section of the discharge port 12 decreases sharply. The pressure of the fluid exits the outlet 12 in a high state.

Thus, the fluid is discharged in an increased state by a predetermined pressure.

As a result, in the process of passing through each motor pump, the fluid can be delivered in a state of being boosted by a predetermined amount.

3 is a state diagram showing the use of a plurality of series connected multi-stage submersible motor pump according to an embodiment of the present invention.

Referring to FIG. 3, it can be seen that the plurality of submersible motor pumps 1 are connected in series through pipe means such as a hose 60 in mountainous terrain.

In this case, the mountainous terrain is shown in FIG. 3, but it can be installed in other highlands.

As shown in FIG. 3, when the submersible motor pump 1 is continuously installed along the ground, the submerged motor pump 1 passes through each submersible motor pump 1 and the pressure can be increased to a predetermined pressure. Can be transported over long distances.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

1: submersible motor pump
10: housing
11: inlet
12: outlet
13: connection
14: distribution channel
15: distribution chamber
16: power connector
20: center tube
21: power supply line
30: rotor
31: Impeller
32: reinforcement
40: stator
50: bearing

Claims

A housing 10 having a suction port 11 through which a fluid is sucked in one side and a discharge hole 12 through which a fluid is discharged at another side;
A center tube 20 disposed to penetrate the interior of the housing 10 in a longitudinal direction and having a hollow;
A rotor 30 disposed to rotate about the center tube 20 and having a magnetic force;
An impeller 31 formed on an inner circumferential side of the rotor 30 and formed in a screw shape;
A stator 40 disposed close to the outer circumferential surface of the rotor 30 and rotating the rotor 30 when power is applied;
A power supply line 21 disposed along an interior of the center tube 20 to supply power to the stator 40;
A connection part 13 formed at an outer circumferential side of the suction port 11 and provided to connect a hose; And
Serially connected multi-stage water motor pump, characterized in that it comprises a disk-shaped power supply connecting plate (16) formed to fit in the inner diameter of the connecting portion (13).

delete

The method of claim 1,
The impeller (31) is disposed on the inner circumferential surface of the rotor (30), a series connected multi-stage submersible motor pump, characterized in that a plurality of impellers are arranged in a screw shape along its longitudinal direction.

The method of claim 3,
A series connected multi-stage submersible motor pump characterized in that a plurality of reinforcement (32) is formed in the longitudinal direction of the impeller (31) to support the shape of the impeller (31) in the axial direction.

The method of claim 1,
The power supply line (21) is a series connected multi-stage submersible motor pump characterized in that it is branched radially from one end thereof is provided separately and connected to the power connecting plate (16).

The method of claim 1,
It is formed so as to surround the outer circumferential surface from one end of the center tube 20, a series connected multi-stage underwater motor pump, characterized in that the flow path 14 is formed so that the fluid can move along the longitudinal direction of the center tube (20). .

The method according to claim 6,
The flow passage 14 is a space between the impeller 31 and the outer circumferential surface of the rotor 30 so as to have a wider cross-sectional area than the inlet 11 and the outlet 12 at the center of the center tube 20. A series connected multi-stage submersible motor pump, further comprising a distribution chamber (15) formed.