JP3122224B2 - Three-way valve device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-way valve device, and more particularly, to a three-way valve system in which three lines are mutually adjusted so that two different fluids are mixed to flow into one line, The present invention relates to a three-way valve device used for dispersing a fluid in a pipe at a predetermined ratio and flowing the fluid.

[0002]

2. Description of the Related Art Conventionally, this type of three-way valve device is a mixed type three-way valve device for mixing two different fluids, for example, as shown in FIG. 5, a valve having three connection ports A1, A2, A3. A first and second partition wall D having a valve hole C in a main body B;
E, and each connection port A1, A
2, first and second chambers F communicating with A3, respectively;
G and H are formed, and a valve body K interlocked with a diaphragm I provided outside the valve body B via a connecting rod J is provided between the partition walls D and E, and the valve body K is moved up and down. For example, the mixing ratio of the fluid flowing from the first and third spaces F and H to the second space G is adjusted. still,
L is a spring and M is an air tube.

Further, the valve body K of the above-mentioned mixed type three-way valve device is provided.
For example, there is also known a dispersion-type three-way valve device dedicated to dispersion in which a fluid is dispersed at a predetermined ratio and flows from one conduit to two conduits by making a change such as dividing the fluid vertically.

[0004]

However, both the mixed type and the dispersed type three-way valve devices move the valve body K up and down.
Since it is a so-called lift type, it is necessary to secure a space in which the valve element K can move, so that the valve device becomes large, and the opening area between each valve hole C and the valve element K is increased. In addition, there is a problem that the flow coefficient (Cv) is small, and the dispersed three-way valve device and the mixed-type three-way valve device have different valve structures. There were also problems that could not be shared.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a three-way valve device which can be used as a mixing valve or a dispersion valve with a simple structure while being small in size, and in which the mixing ratio and the dispersion ratio can be adjusted. It is in.

[0006]

In order to achieve the above object, according to the present invention, there is provided a valve chamber 2 having a spherical inner surface and a first passage having a first opening 3 opening to one side of the valve chamber 2. 30 and a second opening opening adjacent to the other side opposite to the opening 3
The second passage 40 having the portion 4 and the third opening 5 respectively.
And a third passage 50, and the valve body 1 is provided with a ball valve 6 in the opening 3 of the first passage 30.
And a communication portion 7 that is rotatably mounted around an axis perpendicular to a center line connecting the second and third passages 40 and 50 and extends in the ball valve body 6 in a direction perpendicular to the rotational axis. A second passage 40 having the two openings 4,
The third passages 50 having the third openings 5 are respectively
In the passage member 14 having the same opening area as the first passage 30
Here, they are located separated by the partition wall 15 .

[0007]

The opening degree of the first opening 3 with respect to the communication passage 7 and the second opening 4
By continuously changing the opening ratio between the first opening and the third opening 5, it is possible to use the two-way valve as a mixing valve and a dispersing valve while miniaturizing the valve using a ball valve. The mixing ratio of the fluid mixed into the first passage 30 from the second and third passages 40 and 50 through the communication passage 7 and flows into the second passage and the second and third passages from the first passage 30 through the communication passage 7 It is possible to adjust the dispersion ratio of the fluid dispersed in the fluids 40 and 50.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The three-way valve device shown in FIG. 1 has a first member 11 having a first passage 30 communicating with an opening 3, and a second member 12 having second and third passages 40 and 50. The valve body 1 is formed by interposing a third member 14 having a through hole 13 therebetween, and the first member 11 and the third member 14 form the valve chamber 2 having a spherical inner surface. Partition wall 1 of two members 12
5 is extended into the through hole 13, and the extended end faces the valve chamber 2, and the openings 4, 5 open adjacent to each other at a position facing the opening 3 by the partition wall 15. A second passage 40 and a third passage 50 are provided.

Further, the valve chamber 2 is provided with a ball valve body 6 formed in a size corresponding to the spherical inner surface, and the ball valve body 6 is connected to the opening 3 of the first passage 30 and the second and third valve passages. Third
An axis 61 perpendicular to the center line connecting the passages 40 and 50
Around, while being able to rotate from outside the valve body 1 using, for example, a manual lever or an electric motor,
The ball valve element 6 is provided with a communication path 7 extending linearly in a direction orthogonal to the rotation axis 61 of the ball valve element 6, and the rotation of the ball valve element 6 causes the first opening 3 to the communication path 7. And the opening ratio between the second opening 4 and the third opening 5 can be continuously changed. The opening area of the first opening 3 with respect to the communication path 7 is the same as the total opening area of the second opening 4 and the third opening 5.

Next, a case where a fluid flows into the second and third passages 40 and 50, and two different fluids are mixed and flowed into the first passage 30 to be used as a so-called mixing valve will be described.

In this case, the second and third passages 40, 50
Is connected to the inflow pipe, and the outflow pipe is connected to the first passage 30. In such a connected state, the ball valve element 6 is operated to rotate about the rotation axis 61.
When rotated to the position shown in FIG. 1, the communication passage 7 is connected to the first and second passages 3 through the first and second openings 3 and 4.
While the third opening 5 is closed by the ball valve body 6, the third opening 5 does not communicate with the third passage 50. That is, since the opening ratio of the second passage 40 and the third passage 50 to the communication passage 7 is 100: 0, only the fluid flowing into the second passage 40 passes through the communication passage 7 to the first passage. The flow ratio of the fluid flowing through the passage 30 and flowing through the second passage 40 and the third passage 50 can be made 100: 0, and the mixing ratio of the fluid flowing into the first passage 30 can be made 100: 0. .

When the ball valve 6 is rotated to the position shown in FIG. 2, the communication path 7 is connected to the first, second and third openings 3, 4 and 5 respectively. 1st, 2nd
And the second passages 30, 40 and 50. That is, the second passage 40 and the third passage 50 with respect to the communication passage 7
Is 50:50, the fluid flowing into the second and third passages 40 and 50 flows through the communication passage 7 in a mixed state with the first passage 30.
The flow ratio of the fluid flowing through the second passage 40 and the third passage 50 can be 50:50, and the mixing ratio of the fluid flowing to the first passage 30 can be 50:50.

When the ball valve element 6 is rotated to the position shown in FIG. 3, the communication path 7 is connected to the first and third passages 30 through the first and third openings 3 and 5, Although the second opening 4 is closed by the ball valve body 6, the second opening 4 does not communicate with the second passage 40. That is, since the opening ratio of the second passage 40 and the third passage 50 to the communication passage 7 is 0: 100,
Only the fluid flowing into the third passage 50 flows into the first passage 30 via the communication passage 7, and the flow ratio of the fluid flowing through the second passage 40 and the third passage 50 is set to 0: 1.
00, and the mixing ratio of the fluid flowing to the first passage 30 is 10
It can be 0: 0.

While the ball valve 6 rotates from the position shown in FIG. 1 to the position shown in FIG. 3, the second opening 4 and the second opening 4 for the communication passage 7 are rotated as the ball valve 6 rotates. The opening ratio with the three openings is 100: 0 to 0: 1.
00, the flow rate of the fluid flowing into the third passage 50 can be increased as the flow rate of the fluid flowing into the second passage 40 decreases, and flows into the second passage 40 and the third passage 50. The flow rate ratio of the fluid, that is, the mixing ratio is 1 shown in FIG.
It can be adjusted by continuously changing from 00: 0 to 0: 100 shown in FIG. If the communication passage 7 is rotated to a position orthogonal to the first passage 30 and the second and third passages 40 and 50, the flow can be shut off, and it is also used as an on / off valve.

Next, a description will be given of a case where, unlike a mixing valve, a fluid flowing into the first passage 30 is used as a so-called dispersion valve for dispersing the fluid into the second and third passages 40 and 50.

In this case, an inflow pipe is connected to the first passage 30 and an outflow pipe is connected to the second and third passages 40 and 50. The rotation of the ball valve 6 causes the first passage 30 to rotate. Can be dispersed into the second and third passages 40 and 50 via the communication passage 7. In this case, as in the case of using as a mixing valve, the dispersion ratio is also
Like the mixing ratio, the ratio can be continuously changed from 100: 0 to 0: 100 and adjusted.

As described above, by rotating the two-way valve type ball valve body 6 having the communication passage 7, the first and second passages 40 and 50 are passed through the communication passage 7 to the first passage 30. The mixing ratio of the fluid that flows into the second passage and the third passage 40 through the communication passage 7 from the first passage 30
Since the dispersion ratio of the fluid dispersed in 50 can be adjusted, the structure can be simplified by using a two-way valve type ball valve element, and can be used as a mixing valve or a dispersion valve while being small in size. By adjusting the degree of rotation of the valve 6, the mixing ratio and the dispersion ratio can be adjusted.

In the embodiment described above, the valve body 1 is formed from three first, second and third members 11, 12 and 14. However, as shown in FIG. The fourth member 16 integrated with the third member 14 may be formed, and the first member 11 and the fourth member 16 may be combined. In this case, the number of parts can be reduced.

[0019]

As described above, the present invention provides a valve chamber 2 having a spherical inner surface, a first passage 30 having a first opening 3 opening to one side of the valve chamber 2, and the opening section. A second passage 4 having openings 4 and 5 which are open adjacent to the other side opposite to 3
And a valve body 1 having a third passage 50 and a ball valve 6 attached to the valve body 1.
And a communication passage 7 extending inside the ball valve body 6 in a direction perpendicular to the rotation axis while being rotatably mounted around an axis perpendicular to a center line connecting the second and third passages 40 and 50. Is provided, it can be miniaturized using a two-way valve ball element, but can be used as a mixing valve and a dispersing valve with a simple configuration, and furthermore, since a two-way valve type ball valve element is used, the opening area is And the degree of opening of the first opening 3 with respect to the communication passage 7 and the degree of opening of the second opening 4 and the third opening 5 with the rotation of the ball valve body 6 around the axis. By continuously changing the ratio, the second and third passages 40 and 50 pass through the communication passage 7 to the first passage.
The mixing ratio of the fluid mixed and flowing into the passage 30 and, conversely, the second and third passages 4 from the first passage 30 through the communication passage 7.
The dispersion ratio of the fluid dispersed in 0, 50 can be adjusted.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a main part of a three-way valve device according to the present invention.

FIG. 2 is an explanatory diagram showing an operation state in which a mixing ratio is set to 50:50.

FIG. 3 is an explanatory diagram showing an operation state in which a mixing ratio is set to 0: 100.

FIG. 4 is an enlarged sectional view of a main part showing another embodiment.

FIG. 5 is a schematic explanatory view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Valve 2 Valve chamber 3 1st opening 4 2nd opening 5 3rd opening 6 Ball valve 7 Communication path 30 1st passage 40 2nd passage 50 3rd passage

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-134380 (JP, A) JP-A-61-175673 (JP, U) JP-A-61-52770 (JP, U) JP-A-54 83621 (JP, U) Hira 3-22176 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16K 11/087

Claims (1)

(57) [Claims] 1. A valve chamber 2 having a spherical inner surface, a first passage 30 having a first opening 3 opening to one side of the valve chamber 2, and adjacent to the other side facing the opening 3 Opening second opening
A valve body 1 having a second passage 40 and a third passage 50 having a fourth and a third opening 5, respectively , is provided. In this valve body 1, a ball valve 6 is connected to the opening of the first passage 30. 3 and
The ball valve element 6 is provided with a communication portion 7 extending in a direction orthogonal to the rotation axis while being rotatably mounted around an axis orthogonal to a center line connecting the second and third passages 40 and 50. , A second passage 40 having the two openings 4,
The third passages 50 having the openings 5 respectively correspond to the first passages 50.
In the passage member 14 having the same opening area as the passage 30
And a three-way valve device which is separated by a partition wall 15 .