KR101444193B1

KR101444193B1 - 3 way control valve

Info

Publication number: KR101444193B1
Application number: KR1020140025802A
Authority: KR
Inventors: 진종근; 김종열
Original assignee: 주식회사 디에이치콘트롤스
Priority date: 2014-03-05
Filing date: 2014-03-05
Publication date: 2014-09-26
Also published as: JP2015169334A

Abstract

The present invention relates to a three-way control valve which ensures a reliable operation by significantly reducing the amount of leakage and minimizes the cause of internal damages due to the force of a fluid flow. The three-way control valve includes a three way pipe including a first inlet port, a second inlet port, and an outlet port; a first disc opening or closing a first inlet port; a second disc opening or closing the second inlet port; an actuator which is connected to the first or second disc to deliver a driving force to the first or second disc; and a driving delivery unit which connects the first disc and the second disc, is driven by the driving force from the actuator, and enables the second disc to close the second input port when the first disc opens the first input port.

Description

3-way control valve {3 WAY CONTROL VALVE}

The present invention relates to a three-way control valve, and more particularly, to a three-way control valve capable of stably operating by minimizing the amount of leakage and minimizing the cause of internal damage due to force due to fluid flow.

Industrial three-way control valves are mainly equipped with ball valves or rotary valve plugs.

The three-way control valve with ball valve (hereinafter referred to as 'ball valve type') has a Teflon sheet inserted between the body and the inner ball, which has the advantage of a very small internal leakage.

However, such a ball valve type is likely to cause internal damage due to excessive force applied to the Teflon sheet during continuous use, and such internal damage causes the precise control according to the frictional force to be impossible in the automatic control.

In addition, such a ball valve type requires a great deal of force to drive the valve due to the continuous friction between the inner ball and the Teflon sheet during valve operation.

On the other hand, in the case of the rotary plug valve type, since the portion damaged inside is relatively small, the valve body and the plug must be separated from each other for smooth rotation when the plug rotates, A large force is required to drive the valve.

Patent Application No. 10-1999-0036143 Patent Application No. 10-2008-0011333

SUMMARY OF THE INVENTION The present invention is directed to provide a three-way control valve capable of stably operating by minimizing the amount of leakage and minimizing the cause of internal damage due to force due to fluid flow.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a three-way pipe comprising a first inlet port, a second inlet port and an outlet port; A first disk opening / closing the first inlet port; A second disk opening / closing the second inlet port; An actuator connected to the first disk or the second disk to transmit driving force to the first and second disks; And a second disk, which interconnects the first disk and the second disk, is operable to receive a driving force from the actuator, and when the first disk opens the first inlet port, the second disk closes the second inlet port And a drive transmission unit for controlling the three-way control valve.

Here, the first disk is formed so as to bisect the first disk through the central portion of the first disk, and has a first axis crossing the first inlet port and having both ends fixed and reversing the first disk, And the first axis is connected to the actuator.

At this time, the second disk is formed so as to bisect the second disk through the central portion of the second disk, and has a second axis which is opposite to the second disk, And the second shaft is connected to the actuator.

The drive transmission portion includes a central rotary portion mounted on one side of the three-way pipe and disposed between the first inlet port and the second inlet port for forward and reverse rotation, and one end portion disposed on both sides of the central rotary portion And the other end is rotatably coupled to the first and second discs, and a driving force transmitted from the actuator coupled to the first disc or the second disc is transmitted to the first and second discs And a linear transfer portion for uniformly transferring the first and second disks to the opening and closing of the first disk and the closing and opening of the second disk.

The center rotary part is provided with a disc-shaped central arm mounted on one side of the three-way pipe and rotating in the normal and reverse directions, and a motor mounted on one side of the three-way pipe, And a central axis for supporting a forward and a reverse rotation, respectively, and each of the linear transmission parts is rotatably coupled to both sides of the center arm.

The central rotation part includes a first hinge shaft provided on one side of the center arm and extending from the first inlet port side of the three-way pipe to the first hinge shaft so as to be rotatable, Further comprising a second hinge shaft to which the straight line transmitting portion extending to the second inlet port side of the three-way pipe is rotatably coupled, and a second straight line connecting the central axis and the imaginary first straight line connecting the center port of the outlet port of the three- The virtual second straight line connecting the first and second hinge axes and the central axis is inclined at a predetermined angle.

One end of the first link piece is pivotally coupled to the other end of the first link piece, and the other end of the first link piece is coupled to the other end of the first link piece. A second link piece having one end rotatably coupled to the other end of the central rotation part, and a second link piece having one end rotatably coupled to the other end of the second link member, Wherein the first and second link pieces and the first and second crank pieces are mounted on one side of the three-way pipe, and the first and second link pieces and the first and second crank pieces are mounted on one side of the three- .

The first link piece and the second link piece may be arranged parallel to each other.

The first crank piece is inclined at an angle with respect to the first link piece, the second crank piece is inclined at a predetermined angle with respect to the second link piece, and the first crank piece and the second crank piece And the two crank pieces are kept parallel to each other.

And, when the first disk is closing the first inlet port of the three-way pipe, the angle formed by the first crank piece with respect to the first disk is 45 degrees,

And the angle formed by the second crank piece with respect to the second disk is 45 degrees when the second disk is closing the second inlet port of the three-way pipe.

The three-way control valve further includes a ring-shaped sealing sheet, which is an elastic material and is mounted along the edges of the first and second inlet ports.

In addition, the three-way control valve may further include a disc sheet of a metal material mounted along the edges of the first and second discs.

According to the present invention, the actuator connected to the first or second disk of the three-way pipe simultaneously drives the first and second disks, and when the first disk is opened, By employing a configuration in which the driving force is simultaneously transmitted from the additional actuator, the cause of the internal damage due to the force due to the flow of the fluid is minimized, thereby enabling stable operation.

Further, in the present invention, the sealing sheet is attached along the edges of the first and second inlet ports of the three-way pipe, and the disk sheet is mounted along the edges of the first and second disks to greatly reduce the leakage amount of the fluid, do.

1 and 2 are conceptual diagrams illustrating an operating state of a three-way control valve according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms.

Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In the drawings, the thicknesses of layers and regions are exaggerated for clarity.

Terms such as top, bottom, top, bottom, or top, bottom, etc. are used to distinguish relative positions in components.

For example, in the case of naming the upper part of the drawing as upper part and the lower part as lower part in the drawings for convenience, the upper part may be named lower part and the lower part may be named upper part without departing from the scope of right of the present invention .

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

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

1 and 2 are conceptual diagrams illustrating an operation state of a three-way control valve according to an embodiment of the present invention.

It can be understood that the present invention is a structure in which the first and second disks 100, the actuators (not shown) and the drive transmission unit 500 are mounted on the three-way pipe 300 as shown in FIG.

The three-way piping 300 includes a first inlet port 310 and a second inlet port 320 and an outlet port 330 through which fluid flows from the first inlet port 310 through the outlet port 330 Or flows from the second inlet port 320 through the outlet port 330, as shown in FIG.

The first disk 100 opens and closes the first inlet port 310 and the second disk 200 opens and closes the second inlet port 320.

The actuator is connected to the first disk 100 or the second disk 200 to transmit the driving force to the first and second disks 100 and 200.

The drive transmission unit 500 interconnects the first disk 100 and the second disk 200 and is driven by receiving driving force from the actuator and the first disk 100 is driven to open the first inlet port 310 And the second disk 200 closes the second inlet port 320. [

It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention.

The first disk 100 is formed to split the first disk 100 through the central portion of the first disk 100 and has both ends crossing the first inlet port 310, , And further includes a first axis (110) for rotating the first axis (110), and the first axis (110) is connected to the actuator.

The second disk 200 is formed so as to bisect the second disk 200 through the center of the second disk 200 and has both ends crossing the second inlet port 320, And a second shaft 210 for rotating the second shaft 210. The second shaft 210 is connected to the actuator.

Here, although not specifically shown, the actuator is selectively mounted on the first shaft 110 or the second shaft 210 so that when the first shaft 110 or the second shaft 120 is rotated in the forward and reverse directions, It is of course possible to adopt a servo motor or the like which enables simultaneous opening and closing operations of the first and second disks 100 and 200 by forward and reverse rotation in conjunction with each other.

The drive transmitting portion 500 is provided to receive the driving force from the actuator and simultaneously open and close the first and second discs 100 and 200. The drive transmitting portion 500 includes a central rotation portion 510 and a linear transmission portion 520, As shown in FIG.

The central rotation part 510 is mounted on one side of the three-way pipe 300 and disposed between the first inlet port 310 and the second inlet port 320 to rotate forward and reverse.

One end of the linear transmission portion 520 is rotatably coupled to both sides of the central rotation portion 510 and the other end is rotatably coupled to the first and second disks 100 and 200, Or the driving force transmitted from the actuator coupled to the second disc 200 is uniformly transmitted to the opening and closing of the first disc 100 and the closing and opening of the second disc 200 on the basis of the central rotation part 510 .

The central rotation part 510 includes a center arm 511 having a circular plate shape mounted on one side of the three-way pipe 300 and rotating forward and reverse and a center arm 511 mounted on one side of the three- And a center axis 512 supporting the center arm 511 in the forward and reverse directions.

At this time, the linear transmission portion 520 is rotatably coupled to both sides of the center arm 511, respectively.

In more detail, the central rotation part 510 can be understood as a structure including the first and second hinge shafts 513 and 514.

The first hinge shaft 513 is provided at one side of the center arm 511 so that the linear transmission portion 520 extending toward the first inlet port 310 of the three-way pipe 300 is rotatably coupled.

The second hinge shaft 514 is provided on the other side of the center arm 511 so that the linear transmission portion 520 extending toward the second inlet port 320 of the three-way pipe 300 is rotatably coupled.

At this time, the first and second hinge axes and the central axis 512 are connected to the hypothetical first straight line l1 connecting the central axis 512 and the center portion of the outlet port 330 of the three-way pipe 300 It can be seen that the hypothetical second straight line l2 is inclined at a predetermined angle (preferably about 45 degrees).

Meanwhile, it can be understood that the linear transmission portion 520 includes the first and second link pieces 521 and 523 and the first and second crank pieces 522 and 524 as shown in FIG.

One end of the first link piece 521 is rotatably coupled to one side of the central rotation part 510.

One end of the first crank piece 522 is rotatably coupled to the other end of the first link piece 521 and the other end of the first crank piece 522 is rotatably coupled to the first shaft 110 of the first disk 100 .

One end of the second link piece 523 is rotatably coupled to the other side of the central rotation part 510.

One end of the second crank piece 524 is rotatably coupled to the other end of the second link piece 523 and the other end of the second crank piece 524 is rotatably coupled to the second shaft 210 of the second disk 200 .

The first and second link pieces 521 and 523 and the first and second crank pieces 522 and 524 are mounted on one side of the three-way pipe 300, and the first and second link pieces 521 and 523, (523) are arranged in parallel with each other.

The first crank piece 522 is inclined at an angle with respect to the first link piece 521 and the second crank piece 524 is inclined at a predetermined angle with respect to the second link piece 523 , It can be confirmed that the first crank piece 522 and the second crank piece 524 are always parallel to each other.

When the first disk 100 closes the first inlet port 310 of the three-way pipe 300, the angle formed by the first crank piece 522 with respect to the first disk 100 is 45 degrees And the angle formed by the second crank piece 524 with respect to the second disk 200 is 45 degrees when the second disk 200 is closing the second inlet port 320 of the three- .

A three-way control valve according to an embodiment of the present invention includes a ring-shaped sealing sheet (not shown) of an elastic material mounted along the edges of the first and second inlet ports 310 and 320 to minimize leakage, (Not shown), which is mounted along the edges of the first and second discs 100 and 200, as shown in FIG.

The operation state of the three-way control valve according to one embodiment of the present invention having the above structure will be briefly described with reference to the drawings.

For reference, it is assumed that the actuator is coupled to the second shaft 120.

When the actuator rotates the second shaft 120 in the clockwise direction in the state of FIG. 1, the second crank piece 524 rotates in the clockwise direction and pulls the second link piece 523.

At this time, the center arm 511 rotates clockwise as the second link piece 523 moves, and the first link piece 521 connected to the center arm 511 pulls the first crank piece 522 The first crank piece 522 also rotates clockwise.

At the same time, when the second disk 120 rotates in a clockwise direction and opens the second inlet port 320 as shown in FIG. 2, the first disk 110 rotates clockwise together with the first inlet port 310 closed It will be done.

As described above, the present invention is based on the technical idea to provide a three-way control valve capable of greatly reducing the leakage amount and minimizing the cause of internal damage due to the fluid flow, thereby enabling stable operation.

It will be apparent to those skilled in the art that many other modifications and applications are possible within the scope of the basic technical idea of the present invention.

100 ... first disk
110 ... 1st axis
200 ... second disk
210 ... 2nd axis
300 ... 3-way piping
310 ... first inlet port
320 ... 2nd inlet port
330 ... outlet port
500 ... drive transmission portion
510 ... center rotation portion
511 ... center arm
512 ... center axis
513 ... first hinge shaft
514 ... 2nd hinge axis
520 ... linear transmission portion
521 ... first link piece
522 ... first crank piece
523 ... second link piece
524 ... second crank piece
ℓ1 ... 1st straight line
ℓ2 ... 2nd straight line

Claims

A three-way piping having a first inlet port, a second inlet port and an outlet port;
A first disk opening / closing the first inlet port;
A second disk opening / closing the second inlet port;
An actuator connected to the first disk or the second disk to transmit driving force to the first and second disks; And
Wherein the second disk is connected to the first disk and the second disk and is operable to receive a driving force from the actuator, and when the first disk opens the first inlet port, the second disk closes the second inlet port And a drive transmitting portion,
Wherein the drive transmission portion includes:
A central rotary part mounted on one side of the three-way pipe and disposed between the first inlet port and the second inlet port for forward and reverse rotation;
One end portion is rotatably coupled to both sides of the central rotation portion and the other end portion is rotatably coupled to the first and second disks respectively and the driving force transmitted from the actuator coupled to the first disk or the second disk And a linear transmitting portion for uniformly transmitting the opening and closing of the first disk and the closing and opening of the second disk with respect to the central rotation portion,
The center-
A central plate arm mounted on one side of the three-way pipe and rotating in the forward and reverse directions,
And a central shaft mounted on one side of the three-way pipe and coupled with a center portion of the center arm to support a forward and a reverse rotation of the center arm.

The method according to claim 1,
Wherein the first disk comprises:
Further comprising a first axis formed to bisect the first disk through a central portion of the first disk and both ends of the first disk traverse the first inlet port and forward and reverse the first disk,
And the first axis is connected to the actuator.

The method according to claim 1,
Wherein the second disk comprises:
Further comprising a second shaft formed to bisect the second disk through a central portion of the second disk, both ends of which cross the second inlet port and forward and reverse the second disk,
And the second shaft is connected to the actuator.

delete

The method according to claim 1,
Wherein the linear transmission portion is rotatably coupled to both sides of the center arm, respectively.

The method of claim 5,
The center-
A first hinge shaft provided at one side of the center arm and extending from the first inlet port side of the three-way pipe,
And a second hinge shaft provided on the other side of the center arm, the second hinge axis being coupled to the linear transmission portion which is pivotally connected to the second inlet port side of the three-
The imaginary second straight line connecting the first and second hinge axes and the central axis is inclined at a certain angle with respect to a hypothetical first straight line connecting the central axis and the center port of the outlet port of the three- 3-way control valve.

The method according to claim 1,
The straight-
A first link piece having one end rotatably coupled to one side of the central rotation part,
A first crank piece having one end rotatably coupled to the other end of the first link member and the other end rotatably coupled to a first axis of the first disk,
A second link piece having one end rotatably coupled to the other side of the central rotation part,
And a second crank piece having one end pivotally coupled to the other end of the second link member and the other end pivotably coupled to a second axis of the second disk,
Wherein the first and second link pieces and the first and second crank pieces are mounted on one side of the three-way pipe.

The method of claim 7,
Wherein the first link piece and the second link piece are disposed parallel to each other.

The method of claim 7,
Wherein the first crank piece is inclined at a predetermined angle with respect to the first link piece, the second crank piece is inclined at a predetermined angle with respect to the second link piece, and the first crank piece and the second crank piece Wherein the side walls of the three-way control valve are parallel to each other.

The method of claim 7,
Wherein when the first disk is closing the first inlet port of the three-way pipe, the angle formed by the first crank piece with respect to the first disk is 45 degrees,
Wherein the angle formed by the second crank piece with respect to the second disk is 45 degrees when the second disk is closing the second inlet port of the three-way pipe.

The method according to claim 1,
The three-way control valve includes:
Further comprising a ring-shaped sealing sheet which is an elastic material and is mounted along the edges of the first and second inlet ports.

The method according to claim 1,
The three-way control valve includes:
Further comprising: a disc seat made of a metal material mounted along the edges of the first and second discs.