KR20160090412A

KR20160090412A - Pipe bushing unit with vortex generator

Info

Publication number: KR20160090412A
Application number: KR1020150009659A
Authority: KR
Inventors: 이광수
Original assignee: 주식회사 대흥
Priority date: 2015-01-21
Filing date: 2015-01-21
Publication date: 2016-08-01

Abstract

The present invention relates to a dredged soil transfer facility, comprising: a bushing inserted into a connection portion of a pipe for conveying dredged soil, the body having a plurality of spiral blades inserted into an inner diameter portion of the pipe; A flange portion formed to be connected to one end of the body portion and screwed to the connection portion of the pipe; A flange portion and a pipe connecting portion, the flange portion and the pipe connecting portion being formed to have a cylindrical shape, one side of which is fitted between the inner diameter side of the pipe and the outer diameter side of the body portion, And a gasket portion formed continuously in a plate shape.
According to the vortex generating device according to the present invention, in the vortex generating device according to the present invention, the vortex generating device is inserted into the joint portion of the piping to transfer the mixture of dredged soil or coal ash and seawater to the piping The fluid in the pipe can be separated due to the difference in specific gravity so that the fluid can be maintained in the mixed state continuously without forming a layer. In addition, such an effect can solve the problem that the friction of the pipe due to the fluid is reduced and the pipe is punctured, and the problem of accumulating the sludge in the pipe is solved.

Description

[0001] PIPE BUSHING UNIT WITH VORTEX GENERATOR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an in-pipe vortex generator, and more particularly, to a vortex generator for preventing a sludge from accumulating in the pipeline to be worn by being inserted into a connection portion of a pipeline,

Generally, barges are used to dred sand deposited on the bottom of rivers or oceans, or to collect and transport coal ash discharged from coastal thermal power plants. A barge with dredging facility operates on the surface of the work, transporting sand or coal ash from the water and transporting it to the onshore or off-shore facilities.

In the above process, an excavator or a conveyor belt is used to transport the dredged sand from the barge to the barn facility. When the barn facility is far from the shore, the excavator is used to transport the dredged sand to a transportation facility such as a truck, , The conveying belt is used in the proximity of the conveying belt.

The Korean Registered Utility Model No. 20-0358071 (inventor: Kim Yong-eun) is intended to provide an aggregate conveying device for efficiently and efficiently conveying the aggregate carried on a barge or the like to the land without having to carry it all by an excavator. And a moving device for controlling the angle of the up and down and left and right, and the upper and lower and left and right sides of the conveyor are controlled by the adjusting part. The present invention provides an aggregate conveying device capable of adjusting an angle.

However, the above-mentioned design has a problem in that the duct is closed due to aggregation in the duct where the aggregate is sucked and transported, and since the aggregate close to the solid state needs to be transported through the duct, the conveying speed is slow and the efficiency of long- .

In particular, referring to FIG. 1, the fluid mixed with aggregate and seawater is separated into layers in the pipe due to the difference in specific gravity, and the moving velocity v1 of the seawater having a lower specific gravity than the aggregate is faster than the moving velocity v2 of the aggregate The tip of the aggregate rubs against the bottom of the pipe and a cloud ( t ) is generated. This vortex is a factor that continuously rubs the bottom surface of the pipe in the process of fluid movement, and eventually causes a hole in the bottom of the pipe.

In order to solve the above-mentioned problems, the present invention provides piping equipment for conveying a mixture of dredged soil or coal ash and seawater to piping, wherein the mixed fluid is continuously mixed A vortex generating device for generating a vortex so as to be able to move within a pipe while maintaining a state, thereby preventing a cloud of the fluid causing friction on the bottom surface of the pipe.

Other objects of the present invention will become readily apparent from the following description of the embodiments.

In order to achieve the above object, according to one aspect of the present invention, there is provided a bushing inserted into a connecting portion of a pipe for conveying dredged soil, the bushing being inserted into an inner diameter portion of the pipe, A body portion; A flange portion formed to be connected to one end of the body portion and screwed to the connection portion of the pipe; A flange portion and a pipe connecting portion, the flange portion and the pipe connecting portion being formed to have a cylindrical shape, one side of which is fitted between the inner diameter side of the pipe and the outer diameter side of the body portion, There is provided an apparatus for generating a vortex flow in a tube including a gasket portion formed in a plate shape.

Wherein the spiral wing is characterized in that the height of the wing decreases as the fluid is directed from the inlet to the outlet to the outlet.

The body portion may include a bushing portion formed at one end of the pipe to be inserted into the inner diameter side of the pipe and having a diameter larger than a diameter of the body portion so as to be in close contact with the inner circumferential surface of the pipe.

Further, the body may be characterized in that the edge leading from the inner circumferential surface of the inlet side to the flange portion is inclined so that the inlet port is narrowed to a trumpet shape.

According to the vortex generating device of the present invention, the vortex generating device is inserted into the joint of the pipe to transfer the mixture of the dredged soil or coal ash and seawater to the pipe, so that the fluid in the pipe is separated by the specific gravity difference, It is possible to maintain the mixed state continuously, thereby improving the transport efficiency of the fluid. In addition, such an effect can solve the problem that the friction of the pipe due to the fluid is reduced and the pipe is punctured, and the problem of accumulating the sludge in the pipe is solved.

The wing portion inside the vortex generator is provided in a form in which the resistance against the movement of the fluid is minimized and the area is reduced along the direction in which the fluid flows in order to maximize the rotational force of the fluid.

It is possible to provide the bushing and the flange so as to be inserted into the joint of the pipe so that the existing pipe can be used, thereby making it economical, easy to install, and maintaining the airtightness of the pipe joint after installation.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing fluid flow in a conventional pipe. Fig.
2 is a side perspective view showing an embodiment of a vortex generating device according to the present invention.
3 is a front view showing an embodiment of the vortex generating device according to the present invention.
4 is a cross-sectional view showing an installation example of a vortex generating device according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention, Therefore, the scope of the present invention is not limited to the following examples.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant explanations thereof will be omitted.

FIG. 1 is a schematic view showing fluid flow in a conventional pipe, and FIG. 2 is a side perspective view showing an embodiment of a vortex generating device according to the present invention.

According to FIG. 1, when a mixture composed of sea water and dredged soil is transported to a long distance through a pipe, the seawater layer and the dredged soil layer are divided into upper and lower portions of the pipe due to the difference in specific gravity between seawater and dredged soil. At this time, since the flow velocity v1 of the seawater is faster than the flow velocity v2 of the dredged soil and the dredged soil has a little viscosity, rolling (t) occurs at the front end of the dredged soil while the seawater moves to the front end of the dredged soil.

Since the rolling t increases friction occurring between the dredged soil layer and the bottom surface of the pipe 200, perforations are formed in the lower portion of the pipe 200 when the time passes continuously.

Referring to FIG. 2, the present invention includes a bushing body 110, a helical blade 120, a flange 130, a gasket 140, And a bushing part 150. [

The body 110 is a tubular member that is inserted into the existing pipe 200 and installed to be in close contact with the inner circumferential surface of the pipe 200. The body 110 may be made of steel, plastic or rubber. The body portion 110 may have a directionality to the inflow portion 100a and the outflow portion 100b through which the fluid flows.

The spiral wings 120 are formed along the inner circumferential surface of the body 110 in a plurality of directions. For example, the helical wings 120 are formed as a plurality of continuous curved spiral plates starting from the top of the inlet portion 100a and extending spirally toward the outlet portion 100b along the inner circumferential surface of the body portion 110 .

3, the helical blade 120 may be provided such that the height of the helical blade 120 gradually decreases from the starting point of the inlet 100a to reach the outlet 100b and become equal to the inner circumferential surface of the body 110 . This is a shape for minimizing the resistance generated in the piping 200 by the helical blade 120, thereby preventing the flow velocity from being reduced, and maximizing the rotational force of the fluid to achieve efficient stirring. The fluid moves along the pipe 200 and then reaches the vortex generator 100 and is rotated by the resistance of the spiral vane 120. At this time, since the helical wing 120 is a factor for reducing the inner diameter of the pipe 200 and the body 110, after the flow rate of the fluid passes through the body 110 and passes through the body 110 Vortices are generated as the flow velocity is rapidly reduced, and precipitates can form.

Accordingly, the above-described problem can be solved by minimizing the change in the flow rate of the fluid passing through the body 110 and decreasing the surface area of the spiral blade 120 so that the fluid can be imparted with the rotational force.

A bushing 150 may be provided on the outer circumference of the body portion 110 on the outflow portion 100b side to closely contact the inner circumferential surface of the pipe 200. The bushing portion 150 may be integrally formed with the body portion 110 or may be formed of a separate rubber or metal material so as to be fitted on the outer diameter side of the body portion 110. The bushing part 150 allows the body part 110 to be closely attached to the inner circumferential surface of the pipe 200 and prevents leakage of water between the body part 110 and the pipe 200.

The gasket portion 140 is fitted between the flange portion 130 and the connection portion of the pipe 200 to prevent leakage of water. The gasket portion 140 may be formed of a rubber or metal member. The gasket portion 140 has a cylindrical portion which is sandwiched between the inner diameter side of the pipe 200 and the outer diameter side of the body portion 110 and a circular plate portion which is formed continuously to the cylindrical portion to be sandwiched between the flange portion 130 and the pipe connection portion Lt; / RTI >

Referring to FIG. 4, there is shown a sectional view showing an installation example of an in-pipe vortex generating device according to the present invention. According to this, the fluid moving along the pipe 200 can be continuously moved while stirring the mixture, which is separated vertically while rotating clockwise or counterclockwise in the process of passing through the vortex generator 100.

At this time, the edge leading from the inner circumferential surface of the inlet portion 100a side to the flange portion 130 may be inclined so that the inlet portion 100a may be narrowed to a trumpet shape. When the corners of the inlet 100a are at right angles, the speed of the fluid passing through the inlet 100a may be drastically reduced and the sludge may be formed due to the step difference with the subsequent conduit 200, 100a are specified.

According to the vortex generating device of the present invention, since the device can be added to the existing pipe connection part without any additional deformation or replacement, the installation cost can be reduced, and the piercing of the pipe can be prevented, have.

There is little fear of generation of sludge in the piping and deterioration of the delivery output due to the provision of the spiral wing having a shape that minimizes the flow rate reduction phenomenon in inserting an additional device in the piping.

In addition, a bushing portion and a gasket portion for adhering within the piping are separately provided, and can be easily applied to piping of various sizes, thus being excellent in workability.

Although the present invention has been described with reference to the accompanying drawings, it is to be understood that various changes and modifications may be made without departing from the spirit of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the following claims.

100: Vortex generating device in the pipe
110: body part 120: spiral wing
130: flange portion 140: gasket portion
150: Bushing part

Claims

A bushing inserted into a connection portion of a pipe for conveying dredged soil,
A body portion inserted into an inner diameter portion of the pipe and provided with a plurality of helical wings on an inner diameter side;
A flange portion formed continuously to one end of the body portion and screwed to a connection portion of the pipe;
Wherein the flange portion and the pipe connection portion are formed in a cylindrical shape so as to be coupled between the flange portion and the pipe connection portion, one side of which is sandwiched between the inner diameter side of the pipe and the outer diameter side of the body portion, And a gasket portion formed continuously in a plate shape.

The method according to claim 1,
The spiral wing
And the height of the vanes is reduced as the fluid is directed from the inlet to the outlet to the outlet.

The method according to claim 1,
The body portion
And a bushing portion formed at one end of the pipe inserted into an inner diameter side of the pipe and having a diameter larger than a diameter of the body portion so as to be in close contact with an inner circumferential surface of the pipe.

The method according to claim 1,
The body portion
Wherein an edge leading from the inner circumferential surface of the inlet side to the flange is inclined so that the inlet is narrowed in a trumpet shape.