KR20160130881A - Discharge pipe assembly of vertical pump - Google Patents

Abstract

The present invention relates to a discharge pipe assembly of a vertical pump. More specifically, the present invention relates to a discharge pipe assembly of a vertical pump, having a discharge pipe switching the flow direction of fluid to discharge the fluid. To this end, according to the discharge pipe assembly of a vertical pump having the discharge pipe switching the flow direction of the fluid in a vertical pump, provided is a discharge pipe assembly of a vertical pump, comprising: the discharge pipe having a bent pipe body; a housing installed outside the pipe body of the discharge pipe to surround the discharge pipe and having a motor installation unit to enable a motor to be installed in an upper portion thereof; and a fixing means installed on one side of the housing of a position corresponding to one side of the discharge pipe to firmly fixate the discharge pipe and the housing.

Description

[0001] Discharge pipe assembly of vertical pump [0002]

The present invention relates to a discharge tube assembly for a vertical pump, and more particularly, to a discharge tube assembly for a vertical pump including a discharge tube for diverting and discharging the direction of fluid flow.

Generally, a vertical pump refers to a pump connected to the rotational axis of a motor and having a vertically arranged shaft for rotating the impeller of the pump.

The vertical pump has a structure in which the suction pipe is disposed at the lower side and the fluid is discharged in the horizontal direction through the discharge pipe in a vertically erected state.

FIG. 1 is a schematic view of a general vertical pump. The vertical pump 1 is schematically illustrated as follows. A vertical pump 1 is connected to a suction pipe 2, a suction pipe 2, A discharge pipe assembly 4b which vertically opens to one side of the pipe 3 and extends in the vertical direction so as to vertically extend and discharge the fluid and a housing 4b surrounding the discharge pipe 4a, (4) and a motor (5) disposed above the discharge tube assembly (4) to generate a rotational force.

A shaft 6 provided with an impeller 7 is connected to the rotation shaft of the motor 5. When a rotation force is generated by the operation of the motor 5, the shaft 6 connected to the rotation shaft of the motor 5 rotates And the impeller 7 is rotated so that the external fluid flows into the pipe 3, flows in the vertical direction, and is discharged through the discharge pipe 4a in the horizontal direction.

The discharge tube assembly 4 including the discharge tube 4a for switching the direction of the fluid in the vertical pump 1 is formed of an elbow in the form of a tubular pipe connected to the end of the pipe 3 And a housing 4b that protects the discharge pipe 4a and the discharge pipe 4a and is assembled so as to cover the discharge pipe 4a for installing the motor on the upper side.

Such a conventional discharge tube assembly may be divided into an integral type in which the discharge tube and the housing are integrally formed and a separate type in which the discharge tube and the housing are separately manufactured and assembled.

The discharge tube assembly of the integral structure is generally made of an integral structure in which molten metal is put into a mold and solidified to form an integral structure. The discharge tube and the housing are made of the same material. Usually, It is made of stainless steel to prevent corrosion because it is exposed to corrosion.

However, in the case of the discharge tube assembly having the integral structure, there is a problem that a lot of manufacturing costs are required when the discharge tube and the housing are integrally made of stainless steel.

In order to solve the disadvantages of the integral structure, conventionally, the discharge pipe and the housing are separated from each other, and the manufacturing cost is reduced by manufacturing only the discharge pipe from stainless steel for preventing corrosion.

1 is an exploded perspective view of a conventional discharge tube assembly.

As shown in the drawing, the conventional discharge tube assembly 10 is assembled by welding the discharge tube 11 inserted through the fastening hole 15 of the housing 13.

At this time, a plurality of ribs 12 and 14 are provided on the outside of the discharge pipe 11 and the housing 13, respectively, in order to maintain rigidity against external force and prevent deformation.

However, in the conventional discharge tube assembly 10, many ribs are applied, which complicates the structure and requires a long time to manufacture by assembling through welding.

In addition, the load transmitted from the discharge pipe 11 can not be dispersed, but is concentrated and transferred to the housing 13, so that the strength of the portion where the discharge pipe 11 and the housing 13 are in contact with each other is weakened.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a discharge tube assembly for a vertical pump capable of simplifying a structure, providing convenience of assembly, and maintaining a rigidity by distributing a load .

According to an aspect of the present invention, there is provided a discharge tube assembly including a discharge tube for changing a flow direction of a fluid in a vertical pump,

A discharge pipe comprising a pipe body bent in a curved shape;

A housing provided on an outer side of a pipe body of the discharge pipe to surround the discharge pipe and provided with a motor mounting portion for installing a motor thereon; And

And a fixing unit installed at one side of the discharge pipe and at one side of the housing corresponding to the discharge pipe so as to firmly fix the discharge pipe and the housing.

In this case, the fixing means may include a first T-shaped fixing member installed at one side of the outer circumferential surface of the discharge pipe body, and a second T-shaped fixing member at a position corresponding to the first fixing member, And the first fixing member and the second fixing member are engaged with each other while being in contact with each other so as to face each other, thereby fixing the discharge tube and the housing.

In addition, it is preferable to further include fastening means provided on the discharge pipe and the housing to couple the discharge pipe and the housing to each other and to distribute the load transferred by the external force.

It is preferable that a support for supporting the discharge pipe is further provided on a lower side of the outer circumferential surface of the discharge pipe body.

The discharge tube assembly of the vertical pump according to the present invention has the following effects.

By assembling the discharge pipe and the housing with each other through the fixing means, it is possible to assemble easily and quickly with the separate structure, and the load transmitted by the external force such as water pressure generated by the flow of the fluid during operation of the vertical pump is dispersed .

Accordingly, the structure of the discharge tube assembly can be simplified by separating the discharge tube and the housing, and the discharge tube and the housing are formed of the release material, and the stainless steel material for preventing the corrosion is applied only to the discharge tube, And the load is dispersed and transmitted, thereby preventing deformation of the discharge tube assembly.

1 schematically shows a general vertical pump;
2 is an exploded perspective view of a conventional discharge tube assembly;
3 is an exploded perspective view of a discharge tube assembly of a vertical pump according to the present invention.
FIG. 4 is a perspective view of the discharge tube assembly of the vertical pump according to the present invention; FIG.
5 is a plan view of a discharge tube assembly of a vertical pump according to the present invention.
6 is an exploded perspective view of a discharge tube assembly of a vertical pump according to another embodiment of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to FIGS. 3 to 6 attached hereto.

FIG. 3 is a perspective exploded view of a discharge tube assembly of a vertical pump according to the present invention, FIG. 4 is an assembled perspective view of a discharge tube assembly of a vertical pump according to the present invention, FIG. 5 is a plan view of a discharge tube assembly of a vertical pump according to the present invention, 6 is an assembled perspective view of a discharge tube assembly of a vertical pump according to another embodiment of the present invention.

Referring to FIG. 1, a discharge tube assembly 100 of a vertical pump according to the present invention includes a discharge tube 110, a housing 120, a fixing means 130, and a support 150.

The discharge tube assembly 100 is a part that is installed to be connected to the pipe 3 for switching the flow direction of the fluid in the vertical pump 1.

Here, the discharge pipe 110 is connected to one side of the pipe 3 so that the fluid introduced through the suction pipe 2 by the operation of the motor 5 of the vertical pump 1 can be switched from vertical to horizontal direction Section.

The discharge pipe 110 is a pipe bent in a curved shape, and a pipe body 111 having a discharge port 113 through which a fluid is discharged at a horizontal end portion is formed as a basic body.

The pipe body 111 is formed such that a hole through which a fluid flowing in a vertical direction flows and a discharge port 113 through which a fluid is discharged in a horizontal direction are formed at right angles to each other and a corner portion of the pipe body 111, And may be formed at some oblique angle.

In addition, the discharge port 113 through which the fluid of the pipe body 111 is discharged in the horizontal direction may have a flange structure generally used for pipe connection.

At this time, the flange formed on the discharge port 113 may be connected to a pipe (not shown) connected to the outside to send the fluid to the outside, although not shown in the figure.

A shaft penetration part 112 through which the shaft 6 connected to the rotation shaft of the motor 5 passes is provided on one side of the outer circumferential surface of the corner of the pipe body 111.

The shaft penetration part 112 extends perpendicularly to one side of the outer circumferential surface of the pipe body 111 in the form of a circular pipe.

In other words, it has a predetermined thickness and is installed so as to protrude upward so as to partially cover the outer circumferential surface of the shaft 6.

As a result, the shaft can be passed through the shaft penetration part 112 while being connected to the rotation shaft of the motor 5, while being supported by the shaft.

Next, the housing 120 is provided outside the discharge pipe 110 to protect the discharge pipe 110 and to install the motor 5 therein.

The housing 120 is formed with a motor mounting portion 121 having a flange shape upward.

The motor mounting portion 121 is formed with a bolt hole for fixing the bolt at regular intervals in the form of a circular band.

Therefore, the motor 5 can be installed through the bolt hole of the motor mounting portion 121.

A pipe connection part 122 is formed at an end of the motor mounting part 121 so as to extend downward along the rim of the motor mounting part 121 and connected to the pipe 3.

The pipe connecting part 122 is bolted to the flange of the pipe 3 in the form of a flange.

Meanwhile, an insertion hole 123 through which the discharge tube 110 is inserted is formed at one side of the outer circumferential surface of the housing 120.

The insertion hole 123 is formed to be in contact with and correspond to the shape of the upper outer circumferential surface of the pipe body 111 of the discharge pipe 110.

Accordingly, the vertical portion of the discharge pipe 110 is inserted into the pipe 3 through the insertion hole 123 of the housing 120.

On the other side of the housing 120, an assembly opening 124 is formed to open a part of the outer circumferential surface of the housing 120 in order to fasten the fastening means 140 to be described later.

Next, the fixing means 130 serves to firmly fix the discharge tube 110 and the housing 120.

The fixing means 130 is installed at one side of the outer circumference of the pipe body 111 of the discharge pipe 110 and at one side of the outer circumference of the housing 120 at the corresponding position.

The fixing means 130 includes a first fixing member 131 mounted on the discharge pipe 110 and a second fixing member 132 mounted on the housing 120.

The first fixing member 131 is formed on one side of the outer circumferential surface of the pipe body 111 of the discharge pipe 110 and has a T shape.

A plurality of bolt holes may be formed at the end of the first fixing member 131.

The second fixing member 132 is formed on one side of the outer circumferential surface of the housing 120 at a position corresponding to the first fixing member 131 and has a T shape.

A plurality of bolt holes may be formed at the end of the second fixing member 132.

At this time, the first fixing member 131 and the second fixing member 132 are engaged with each other while facing each other to be opposed to each other, so that the discharge tube 110 and the housing 120 can be fixed.

Next, the support 150 serves to support the discharge tube 110.

The support 150 is installed on one side of the lower portion of the outer circumferential surface of the pipe body 111 of the discharge pipe 110.

At this time, the support 150 is installed perpendicularly to the outer circumferential surface of the pipe body 111 at the lower central portion of the pipe body 111.

One side of the support 150 may be provided on the outer circumferential surface of the pipe body 111 and the other side may be provided on one side of the pipe connection part 122 of the housing 120.

Thus, the pipe body 111 can be firmly fixed while being supported by the support 150.

Next, a coupling means 140 may be further installed in the discharge pipe 110 and the housing 120 to couple the discharge pipe 110 and the housing 120 to each other and to distribute the load transferred by the external force. have.

The fastening means 140 serves to couple the discharge tube 110 and the housing 120 to each other.

The fastening means 140 is installed in the discharge pipe 110 and the housing 120 to disperse the load transferred by the external force.

The fastening means 140 includes a first reinforcing rib 141 and a first fastening member 142 provided on the discharge pipe 110, a second reinforcing rib 143 provided on the housing 120, And a fastening member 144.

The first reinforcing ribs 141 are provided in a plurality of shapes so as to be perpendicular to the outer surface of the pipe body 111 from one side of the shaft penetration portion 112 through which the shaft 6 penetrates.

That is, it is installed to extend from the shaft penetration portion 112 to an inclined shape vertically downward with respect to the pipe body 111.

The first fastening members 142 are installed on the first reinforcing ribs 141 on the first reinforcing ribs 141 in a 'T' shape.

The first fastening member 142 is partially fixed to one side of the inclined side of the first reinforcing ribs 141 and has a T-shaped cross-section.

A plurality of bolt holes may be formed at an end of the first fastening member 142.

Next, a plurality of second reinforcing ribs 143 are provided perpendicularly to the inner surface of the housing 120 so as to correspond to the first reinforcing ribs 141.

That is, it may be installed perpendicular to the inner circumferential surface on the inner surface from the motor mounting portion 121 of the housing 120 to the pipe connecting portion 122.

At this time, the second reinforcing ribs 143 may be formed to be connected from the outer circumferential surface of the housing 120 to the inside of the outer circumferential surface at regular intervals, and are disposed to coincide with the positions of the first reinforcing ribs 141.

On the other hand, the second fastening member 144 is installed in a 'T' shape on one side of the second reinforcing rib 143 so as to be in contact with the first fastening member 142.

Accordingly, the first coupling member 142 and the second coupling member 144 are bolted together while being in contact with each other so as to firmly couple the discharge pipe 110 and the housing 120 together.

In addition, the fastening means 130 can be coupled to the discharge tube 110 at various positions of the housing 120 in a dispersed manner, so that loads due to external forces can be dispersed and transferred without being concentrated in any one place. .

Hereinafter, the assembling method and the installation state of the discharge tube assembly of the vertical pump described above with reference to FIGS. 3 to 6 will be described.

First, the housing 120 is disposed on one side of the pipe 3 of the vertical pump 1, and the pipe connecting portion 122 is bolted to the flange of the pipe.

Then the discharge tube 110 is inserted into the insertion hole 123 of the housing 120 so that the vertical portion of the discharge tube 110 is inserted into the pipe 3.

The first fixing member 131 on the outer circumferential surface near the discharge port 113 of the discharge tube 110 and the second fixing member 132 on one side of the outer circumferential surface of the housing 120 are in contact with each other through the fixing means 130 So that they are fixed through bolting.

At this time, a support 150 is installed on one side of the discharge pipe 110 to be supported on one side of the pipe connection part 122.

Then, the fastening means 140 may be further provided as occasion demands.

At this time, the first fastening member 142 and the second fastening member 144 of the fastening means 140 are bolted in a state where they are in contact with each other.

Thus, the discharge pipe 110 and the housing 120 are coupled to complete the assembly of the discharge pipe assembly 100 of the vertical pump.

The discharge tube assembly 100 of the vertical pump thus assembled is installed between the one side of the pipe 3 and the motor 5 to discharge the fluid flowing in the vertical direction in the horizontal direction do.

As described above, since the discharge tube 110 and the housing 120 are coupled to each other through the fixing means 130, it is possible to easily and quickly assemble in a separate structure, The load transmitted by the external force such as water pressure generated according to the flow can be dispersed and transmitted.

Accordingly, the structure of the discharge tube assembly 100 can be simplified by separating the discharge tube 110 and the housing 120, and the discharge tube 110 and the housing 120 are formed of a release material, The stainless steel material is applied only to the discharge pipe 110 to reduce the cost and to distribute the load so as to prevent the discharge tube assembly 100 from being deformed.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

100: Discharge tube assembly 110: Discharge tube
111: pipe body 112: shaft penetration part
113: discharge port 120: housing
121: motor mounting part 122: pipe connection part
123: insertion hole 124: assembly hole
130: fixing means 131: first fixing member
132: second fixing member 140: fastening means
141: first reinforcing rib 142: first fastening member
143: second reinforcing rib 144: second fastening member
150: Support

Claims (4)

A discharge tube assembly comprising a discharge tube for switching a flow direction of a fluid in a vertical pump,
A discharge pipe comprising a pipe body bent in a curved shape;
A housing provided on an outer side of a pipe body of the discharge pipe to surround the discharge pipe and provided with a motor mounting portion for installing a motor thereon; And
And a fixing means installed at one side of the discharge pipe and at one side of the housing corresponding to the discharge pipe so as to firmly fix the discharge pipe and the housing. The method according to claim 1,
Wherein,
A first fixing member 'T' shaped at one side of the outer circumferential surface of the discharge pipe body;
And a second fixing member having a 'T' shape and installed at one side of the outer circumferential surface of the housing at a position corresponding to the first fixing member,
Wherein the first fixing member and the second fixing member are fastened to each other by bolting engagement in a state in which the first fixing member and the second fixing member are opposed to each other to fix the discharge pipe and the housing. The method according to claim 1,
Further comprising a coupling means provided on the discharge pipe and the housing to couple the discharge pipe and the housing to each other and to distribute the load transferred by the external force. 4. The method according to any one of claims 1 to 3,
And a support for supporting the discharge pipe is further provided on a lower side of the outer peripheral surface of the discharge pipe body.

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