KR101793580B1

KR101793580B1 - Electric two-line hree-way ball valve

Info

Publication number: KR101793580B1
Application number: KR1020160002006A
Authority: KR
Inventors: 김복수
Original assignee: 김복수
Priority date: 2016-01-07
Filing date: 2016-01-07
Publication date: 2017-11-03
Also published as: KR20170082800A

Abstract

A two-line three-way ball valve 100 controlled by an electric motor according to an embodiment of the present invention includes one inlet 10 and two outlets 20 and 21, A housing 30 in which a ball structure accommodating portion 22 is formed respectively and a through hole 23 is formed in an upper portion of the ball structuring portion 22; Two ball structures (40) penetrating the center portion and having concave grooves (42) formed at the upper end thereof and mounted on the ball receiving portion (22) of the housing (30); A coupling 50 through which the outlets 20 and 21 of the housing 30 are coupled to the ends; A valve stem (61) inserted into the through hole (23) of the housing (30) and engaged with the concave groove (42) at the upper end of the ball structure (40); And an electric drive means (60) mounted on an upper portion of a ball structure receiving portion (22) of the housing (30), wherein an output shaft of the electric drive means (60) is coupled to the valve rod The electric drive means 60 rotates the ball structure 40 by 90 degrees.

Description

Electric two-line three-way ball valve {ELECTRIC TWO-LINE HREE-WAY BALL VALVE}

The present invention relates to an electric three-way valve, and more particularly, to an electric two-line three-way ball valve capable of controlling the fluid flow of two lines individually.

Generally, the three-way valve is formed in three directions as an inlet port and an outlet port (hereinafter, referred to as " inlet / outlet port ") of the valve housing so as to switch the direction of fluid flow through each inlet / outlet port as the valve body moves. Can be used for a hot water or heating supply system or the like.

These three-way valves have various operating structures such as electric type using a motor, magnetic type using a solenoid, and hydraulic type using fluid pressure according to a method of operating a valve body in addition to a manual operation type. The double electric type valve is relatively easy to control, And it is widely used for various purposes.

As shown in Korean Patent No. 10-0964930, the conventional three-way ball valve 200 selectively discharges the fluid introduced into one inlet 1 through the other two outlets 2 and 3, And is discharged through both of the two outlets 2 and 3 (Fig. 1). As shown in FIG. 2, when the valve body 4 is rotated in the three-way valve 200 of the Korean Patent No. 10-0964930 to cut off the flow path of the inlet port 1, the fluid to the outlet ports 2 and 3 . However, in this case, the inlet is shut off, while the other two outlets 2, 3 are opened, so that the two fluid lines communicate with each other. Therefore, there is a problem in that, in a state in which the supply of the fluid from the inlet 1 is blocked, such control can not be performed when it is necessary to keep the respective states (for example, temperature) of the two fluid lines different .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a three-way ball valve having one inlet and two outlets, Way ball valve.

The two-line three-way ball valve electrically controlled in accordance with an embodiment of the present invention includes one inlet and two outlets, and a ball structure receiving part is formed in an inner space of the outlet, A housing having a through hole formed in an upper portion thereof; Two ball structures penetrating the center portion, having concave grooves formed at the upper end thereof and mounted on the ball receiving portion of the housing; A coupling member coupled to an end of the outlet of the housing; A valve stem inserted into the through hole of the housing and engaged with the concave groove on the upper end of the ball structure; And an electric drive means mounted on an upper portion of the ball structure receiving portion of the housing, wherein an output shaft of the electric drive means is coupled to the valve rod, and the electric drive means rotates the ball structure by 90 °.

In an electrically controlled two-line three-way ball valve according to an embodiment of the present invention, an annular seat ring may be mounted on both sides of each ball structure, and a radius of curvature of the contact surface of the annular seat ring, Can be equal to or greater than the radius of the structure.

In addition, in the electrically controlled two-line three-way ball valve according to an embodiment of the present invention, the annular seat ring may be made of Teflon.

In addition, in the electrically controlled two-line three-way ball valve according to an embodiment of the present invention, an O-ring may be mounted between the end of the outlet of the housing and the engagement hole.

In addition, in a two-line three-way ball valve which is electrically controlled in accordance with an embodiment of the present invention, a sensor hole is formed between the outlets on both sides of the housing, and a sensor may be mounted on the sensor hole.

In addition, in the electrically controlled two-line three-way ball valve according to an embodiment of the present invention, the electric drive means may be a motor or a solenoid.

With the electric two-line three-way ball valve according to the present invention, the three-way ball valve having one inlet and two outlets can individually control the state of the fluid in the two fluid lines.

1 is a view showing a conventional electric three-way ball valve.
FIG. 2 is a view showing a state in which the inlet is blocked in the electric three-way ball valve of FIG. 1; FIG.
3 is an exploded perspective view of an electric two-line three-way ball valve according to an embodiment of the present invention.
4 is a perspective view of an electric two-line three-way ball valve according to an embodiment of the present invention.
FIG. 5 is a perspective view of the electric two-line three-way ball valve of FIG. 4, in which the electric drive means is removed.
FIG. 6 is a cross-sectional view of the electric two-line three-way ball valve of FIG. 5 in which the inlet of the three-way ball valve is opened and both of the first outlet and the second outlet are opened.
FIG. 7A is a sectional view of the electric two-line three-way ball valve of FIG. 5 as viewed from above, with the inlet, the first outlet, and the second outlet both open.
FIG. 7B is a sectional view of the electric two-line three-way ball valve of FIG. 5, viewed from the top, with the inlet and the first outlet open and the second outlet closed.
FIG. 7C is a sectional view of the electric two-line three-way ball valve of FIG. 5, viewed from above, with the inlet and the second outlet open and the first outlet closed.
FIG. 7D is a cross-sectional view of the electric two-line three-way ball valve of FIG. 5 as viewed from above, with both the first outlet and the second outlet closed.
8 is a cross-sectional view showing a state in which a ball valve is provided at an inlet port and a ball valve is installed at an outlet port of one of the two outlet ports in an electric two-line three-way ball valve according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above objects, features and advantages will become more apparent through the following examples in conjunction with the accompanying drawings.

It is to be understood that the specific structure or functional description is illustrative only for the purpose of describing an embodiment according to the concept of the present invention and that the embodiments according to the concept of the present invention may be embodied in various forms, Should not be construed as limited to these.

The embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in the specification of the present application. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all changes, equivalents and alternatives included in the spirit and scope of the present invention.

The terms first and / or second etc. may be used to describe various components, but the components are not limited to these terms. The terms may be named for the purpose of distinguishing one element from another, for example, without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, The second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when it is mentioned that an element is "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions for describing the relationship between components, such as "between" and "between" or "adjacent to" and "directly adjacent to" should also be interpreted.

The terminology used in the specification of the present application is used only to describe a specific embodiment and is not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is to be understood that the terms such as " comprises "or" having "in this specification are intended to specify the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, 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 unless otherwise expressly defined in the specification of the present application, It is not interpreted.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

First, a divided orthodontic appliance according to an embodiment of the present invention will be described with reference to FIGS. 3 to 5. FIG.

In the electric two-line three-way ball valve 100 according to the embodiment of the present invention, the housing 30 has one inlet 10 and two outlets 20 and 21, And a through hole 23 is formed in an upper portion of the ball structure receiving portion 22 of the housing 30. The ball structure receiving portion 22 is formed in the inner space of the housing 30, Two ball structures 40 are mounted on the ball structure receiving portion 22 of the housing 30. The ball structure 40 penetrates the center portion to open or close the fluid lines every 90 degrees, . A valve seat 43 engaging with the concave groove 42 at the upper end of the ball structure 40 is inserted into the through hole 23 at an upper portion of the ball structure accommodating portion 22 of the housing 30, And a nut.

The ball structures 40 are individually controlled by the electric drive means 60 so that a valve seat 43 connected to the output shaft of the drive means 60 is formed in the concave groove formed in the upper end of the ball structure 40 42, the ball structure 40 can be rotated by the operation of the driving means 60. The electric drive means 60 is mounted on the upper portion of the housing portion 22 of the ball structure 40 of the housing 30. The concave groove 42 formed at the upper end of the ball structure 40 may be a straight groove or a cross groove but is not limited thereto and may be any shape as long as it can be engaged with the end of the rotary shaft 61.

The electromotive driving means 60 may be an electric motor or a solenoid, and may be electrically controlled by a control signal from a control unit (not shown).

The ball structure 40 is accommodated in the housing portion 21 of the housing 30 and the ball fitting 40 is coupled to the end of the outlet 20 of the housing 30, (21). The inner circumferential surface of the end portion of the outlet 20 of the housing 30 and the outer circumferential surface of the fitting hole 50 are preferably screwed.

Annular seat rings 41 are mounted on both sides of the ball structure 40 mounted to the housing part 21 of the housing 30 so that the ball structure 40 can be moved in the axial direction of the ball structure 40, And between the inner peripheral surface of the housing 30 and the outer peripheral surface of the ball structure 40 and the inner peripheral surface of the engaging hole 50. [ The radius of curvature Ra of the contact surface of the ball structure 40 of the annular seat ring 1 is preferably equal to or larger than the radius of the ball structure 40 in order to enhance the sealing action of the annular seat ring 41 Do.

The annular seat ring 41 may be made of a material such as Teflon or PTFE, but it is not limited thereto and may be made of other known materials.

An O-ring 51 may be mounted between the outlet 20 of the housing 30 and the coupling 50 so as to prevent leakage of the fluid. The O- , NBR, silicone, urethane, and Teflon, which are excellent in chemical resistance and durability.

A sensor hole 71 may be formed between the outlets 20 and 21 on both sides of the housing 30. The sensor hole 71 may be provided with a sensor 70 for sensing the temperature and pressure of the fluid inside the housing 30. A known sensor can be used as such a sensor, and a detailed description of the sensor is omitted.

3 and 4, an assembly of an electric two-line three-way ball valve according to an embodiment of the present invention will be described.

First, a housing 30 having one inlet 10 and two outlets 20 and 21 and a housing portion 22 of the ball structure 40 formed inside the outlet 20 and 21 is prepared. do.

The valve seat 43 is inserted through the through hole 23 of the housing 30 and then the nut 44 is fixed to mount the valve seat 43 on the housing 30. Further, after the sensor 70 is inserted into the sensor hole 71 of the housing 30, it is fixed with a screw or the like.

Next, an annular seat ring 41 is disposed in the ball structure accommodating portion 22 of the housing 30, and then the upper end concave groove 42 of the ball structure 40 is fitted to the end of the valve seat 43 The ball structure 40 is seated on the receiving portion 22 so that the ball structure 40 is engaged. In this state, after the annular seat ring 41 is disposed again, the engaging hole 50 is screwed to the end of the outflow ports 20, 21 of the housing 30 to connect the ball structure 40 to the housing 30 (See Fig. At this time, it is preferable to mount an O-ring between the end of the outflow ports 20 and 21 and the coupling port 50.

Next, when the electric drive means 60 is attached to the upper portion of the ball structure accommodating portion 22 of the housing 30 with the output shaft of the electric drive means 60 coupled to the valve seat 43, Assembly of the electric two-line three-way ball valve according to the invention is completed.

A union 80 may be connected to the inlet 10 and outlet 20 of the electric two-line three-way ball valve 100 of the present invention to facilitate connection of the inlet and outlet ends to the ends of the inlet and outlet. have. Such a union can also be conveniently used when connecting pipes of different diameters to the diameters of the inlet and outlet and to the ends of the inlet and outlet.

Next, the operation of the electric two-line three-way ball valve 100 according to one embodiment of the present invention will be described with reference to Figs. 7A to 7D.

7A is a sectional view showing a state in which both the inlet 10, the first outlet 20 and the second outlet 21 of the electric two-line three-way ball valve 100 according to the present invention are opened. The fluid is simultaneously supplied to a first fluid line (not shown) communicated with the first outlet 20 and a second fluid line (not shown) communicated with the second outlet 21.

7B is a sectional view showing a state in which the inlet 10 and the first outlet 20 of the electric two-line three-way ball valve 100 according to the present invention are opened and the second outlet 21 is closed, The fluid is supplied only to the first fluid line (not shown) communicating with the first outlet 20 and the fluid is supplied to the second fluid line (not shown) communicated with the second outlet 21, Is stopped.

7C is a sectional view showing a state in which the inlet 10 and the second outlet 21 of the electric two-line three-way ball valve 100 according to the present invention are opened and the first outlet 20 is closed, (Not shown) that is in fluid communication with the first outlet 20 and the second fluid line (not shown) that is in communication with the second outlet 21. The first fluid line (not shown), which is in communication with the first outlet 20, Is stopped.

7D is a cross-sectional view showing a state in which both the first outlet 20 and the second outlet 21 of the electric two-line three-way ball valve 100 according to the present invention are closed. FIG. 7D shows a state in which the first outlet 20 (Not shown) communicating with the second outlet 21 and the second fluid line (not shown) communicating with the second outlet 21 at the same time. In the operating mode of Figure 7d, the supply of fluid to the first fluid line and the second fluid line is interrupted and the communication between the first fluid line and the second fluid line is interrupted, The state (e.g., temperature, pressure, etc.) can be controlled independently. For example, in the case where the state of the fluid (temperature) of each fluid line is to be maintained in a state where the temperature of the fluid in the first fluid line is 70 ° C and the temperature of the fluid in the second fluid line is 60 ° C , Both the first outlet 20 and the second outlet 21 of the electric two-line three-way ball valve 100 are controlled to be closed as shown in Fig. 7D.

Next, another embodiment of the present invention will be described.

The ball valve for controlling the flow of the fluid is provided on the side of the two outlets 20 and 21 in the embodiment described above. However, in another embodiment of the present invention, as shown in FIG. 8, And a ball valve can be provided at an outlet of one of the two outlets 20, The other components are similar to those of the electric two-line three-way ball valve according to the above-described embodiment, and a description thereof will be omitted.

In the other embodiment of the present invention, when the ball valve on the side of the outlet 10 is blocked while the ball valve on the side of the inlet 10 is shut off, the supply of the fluid to the two fluid lines is stopped, Fluid communication is blocked; When the ball valve on the side of the outlet 10 is opened while the ball valve on the side of the inlet 10 is opened, the supply of the fluid to the two fluid lines is stopped, but the fluid can be controlled to communicate with each other.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Will be clear to those who have knowledge of.

1, 10: inlet 2, 3, 20, 21: outlet
5, 60: Driving means 22: Ball structure holding portion
30: housing 40: ball structure
41: seat ring 50:
51: O-ring 70: sensor
80: Union 100, 200: Three-way ball valve

Claims

In an electromagnetically controlled three-way ball valve,
A ball structure accommodating portion 22 is formed in an inner space of each of the outlets 20 and 21 and a ball structure accommodating portion 22 is formed in the ball structure accommodating portion 22, A housing 30 in which a through hole 23 is formed in an upper portion of the housing 30;
Two ball structures (40) penetrating the center portion and having concave grooves (42) formed at the upper end thereof and mounted on the ball receiving portion (22) of the housing (30);
(50) coupled to an end of the outlet (20, 21) of the housing (30);
Two valve bosses 43 inserted into the through holes 23 of the housing 30 to engage with the concave grooves 42 at the upper end of each ball structure 40; And
And two electric drive means (60) mounted on top of each ball structure receiving portion (22) of the housing (30)
The output shaft of each of the electric drive means 60 is coupled to the respective valve seat 43 and each of the electric drive means 60 operates independently of each other to rotate the respective ball structures 40 90 ° Wherein the two-line three-way ball valve is an electric two-line ball valve.

The method according to claim 1,
And an annular seat ring (41) is mounted on both sides of each of the ball structures (40).

3. The method of claim 2,
Wherein the radius of curvature of the contact surface of the ball structure (40) of the annular seat ring (41) is equal to or greater than the radius of the ball structure (40).

3. The method of claim 2,
Wherein the annular seat ring (41) is made of Teflon material.

The method according to claim 1,
And an O-ring (51) is mounted between the end of the outlet (20) of the housing (30) and the engagement hole (50).

The method according to claim 1,
A sensor hole 71 is formed between the outlets 20 and 21 on both sides of the housing 30 and a sensor 70 is mounted on the sensor hole 71. [ .

7. The method according to any one of claims 1 to 6,
Characterized in that the electric drive means (60) comprises a motor or a solenoid and is controlled individually.