JPH10299918A - Two-way branching controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the quantity of a fluid staying in piping by disposing valve bodies respectively at two side faces of a valve casing provided with a first opening part at the upper face and second and third opening parts at the lower face, and communicating the first opening part with the second and third opening parts by opening/closing diaphragms disposed at the respective ends of branch passages in two directions. SOLUTION: A valve casing 1 is formed in nearly triangular shape, and an opening part 3 is formed at the upper face, and opening parts 4, 5 are formed at the lower face. A passage from the opening part 3 is made to branch off in two directions spaced by about 120 deg. inside the valve casing 1, and the respective branch passage ends are opened to two side faces of the valve casing. Valve bodies 2 respectively provided with diaphragms are fitted to two openings, and the opening part 3 can be communicated with the opening parts 4, 5 by opening/closing the diaphragms by operating the valve bodies 2. With such a two-way branching controller, compact piping structure can be obtained, and since branch passage length to the valve bodies 2 is extremely short, the quantity of a fluid staying in piping can be made small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-way branching controller, which has excellent flowability, does not cause accumulation of fluid inside a flow passage, and can be installed in a small space. An object of the present invention is to provide a two-way branch controller excellent in performance.

[0002]

2. Description of the Related Art Conventionally, fluids flowing from two directions are mixed,
Alternatively, in order to distribute the fluid flowing from one direction in two directions, a pipe structure connected in a Y-shape using a T-tube (T) or a vent tube (B) is adopted as shown in FIG. Often have. When a horizontal pipe is branched in a vertical direction, a branch pipe structure using a T-shaped pipe (T) is used as shown in FIG. However, in the conventional piping structure described above, when the control valve is closed,
In the piping structure shown in FIG. 11, a T-shaped pipe (T) and a vent pipe (B)
In the piping structure shown in FIG. 12, a large amount of fluid accumulates in the pipes extending from the branch of the T-tube (T) to the inlet flow path of the control valve (A). Not preferred. In using the conventional piping structure as described above, a plurality of pipelines such as a T-shaped pipe (T) and a vent pipe (B) must be connected using packing (P) and clamp (C). The piping work was troublesome. In addition, a large space is required for installation of the piping, and it may not be used in places where the piping is crowded. Furthermore, since the two control valves (V) for controlling the flow rate to the branch passage are located at separate positions, the operability was poor when a manual valve was used.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has excellent flowability, does not cause accumulation of fluid in the flow path, and can be installed in a small space. It is an object of the present invention to provide a two-way branch controller which is excellent in operability.

[0004]

According to the present invention, as a means for solving the above-mentioned problems, the invention according to the first aspect of the present invention has a substantially triangular prism shape, has a first opening on an upper surface, and has a second and a third opening on a lower surface. A two-way branching controller comprising a valve box having an opening, and two valve bodies respectively disposed on two side surfaces of the valve box, The passage is branched in two directions inside the valve box, and can be communicated with the second and third openings by opening and closing the diaphragm of the valve body disposed at each branch path end. Bidirectional branch controller. According to the second aspect of the present invention, a valve box having a substantially triangular prism shape, having a first opening on an upper surface, a second opening on a lower surface, and a third opening on a side surface, Two-way branching control, comprising first and second valve bodies respectively disposed on two side surfaces, wherein the first and second valve bodies are communicated by a connection passage provided inside the valve box. A passage from the first opening is bifurcated in the valve box, one of the passages is capable of communicating with the second opening through the first valve body, and the other is Is a two-way branch controller characterized in that it can communicate with the third opening through the connection passage through the second valve body.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a two-way branch controller according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a first embodiment of a two-way branch controller according to the present invention. In the two-way branch controller according to the first embodiment, the two valve bodies (2) are arranged in one valve box (1) to mix fluids flowing in from two directions or to flow in one direction. The fluid is configured to be distributed in two directions.

FIG. 2 is a front view of the valve box (1), FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. 4 is a sectional view taken along line BB of FIG. The valve box (1) has a substantially triangular prism shape and has an upper surface (FIG. 2).
The first opening (3) is provided on the left side, and the second opening (4) and the third opening (5) are provided on the lower surface. The passage from the first opening (3) is branched into two directions at intervals of 120 ° inside the valve box (1), and each branch path end opens to two side surfaces of the valve box (1). A valve body (2) having a diaphragm is attached to each of these two openings as shown in FIG. 1, and the first opening (3) is opened and closed by opening and closing the diaphragm by operating these valve bodies (2).
Can communicate with the second opening (4) and the third opening (5).

FIG. 5 shows a two-way branch controller having the above configuration.
By connecting the pipes as shown in (2), a substantially Y-shaped bidirectional branch pipe is formed. As described above, the use of the two-way branch controller according to the present invention results in a very compact piping structure as compared with the conventional piping structure shown in FIG. 11, and the branch path length to the valve body (2) is reduced. Since it is very short, the amount of fluid that accumulates in the pipe can be made extremely small.

FIG. 6 is a front view showing a second embodiment of the two-way branch controller according to the present invention, and FIG. 7 is a bottom view of FIG. The two-way branch controller of the second embodiment is mainly used when a horizontal pipe is branched in the vertical direction, and two valve bodies are provided in one valve box (1) as in the first embodiment. (2
1) and (22) are provided.

FIG. 8 is a front view of the valve box (1), FIG. 9 is a sectional view taken along line AA of FIG. 8, and FIG. 10 is a sectional view taken along line BB of FIG. As shown, the valve box (1) has a substantially triangular prism shape, has a first opening (7) on the upper surface (left side in FIG. 8), and has a second opening (8) on the lower surface. ) Are provided on the side surface of each of the third openings (9). The two valve bodies (21) and (22) are respectively attached to two side surfaces of the valve box (1), and can communicate with each other through a connection passage (6) provided inside the valve box (1). The passage from the first opening (7) is bifurcated in the valve box (1), and one of the passages can communicate with the second opening (8) via the first valve body (21). The other passage is connected to the third opening (9) through the connection passage (6) and the second valve body (23).

According to the two-way branch controller having the above structure, the horizontal piping can be branched in the vertical direction with a very compact piping structure as compared with the conventional piping structure shown in FIG. Since the length is very short, the amount of fluid accumulated in the pipe can be extremely small.

In the illustrated example, the operating mechanism for expanding and contracting the diaphragm is a pneumatic mechanism using a compressor. However, in the present invention, the form of the operating mechanism is not limited at all, and all known operating mechanisms can be suitably used. For example, a handle-type manual operation mechanism may be used.

[0012]

As described above, according to the first aspect of the present invention, there is provided a valve box having a substantially triangular prism shape and having a first opening on an upper surface and second and third openings on a lower surface. A two-way branching controller comprising two valve bodies respectively disposed on two side surfaces of the valve box, wherein the passage from the first opening branches in two directions inside the valve box. The two-way branch controller is characterized in that it can be communicated with the second and third openings by opening and closing a diaphragm of the valve body disposed at each branch path end.
The branch path length to the valve body is very short compared to the conventional piping structure, and the amount of fluid that accumulates in the piping can be extremely small, and the fluid that flows in from two directions is mixed with a very compact piping structure. Alternatively, since the fluid flowing from one direction can be distributed in two directions, it can be installed in a small space and has a wide application range.

According to a second aspect of the present invention, there is provided a valve box having a substantially triangular prism shape, having a first opening on an upper surface, a second opening on a lower surface, and a third opening on a side surface. A first valve body and a second valve body disposed on two sides of the box, respectively, and the first and second valve bodies are communicated by a connection passage provided in the valve box. A branch controller, wherein a passage from the first opening is branched in two directions in a valve box, and one of the passages can communicate with the second opening through the first valve body. Is a two-way branching controller characterized in that it can be communicated with the third opening through the second valve body through the connection passage. The horizontal piping can be branched in the vertical direction with a compact piping structure. It can be extremely small amount of very short because the fluid accumulated in the piping.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a two-way branch controller according to the present invention.

FIG. 2 is a front view of a valve box of the two-way branch controller according to the first embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a diagram in which pipes are connected to the two-way branch controller according to the first embodiment.

FIG. 6 is a front view showing a second embodiment of the two-way branch controller according to the present invention.

FIG. 7 is a bottom view showing a second embodiment of the two-way branch controller according to the present invention.

FIG. 8 is a front view of a valve box of the two-way branch controller according to the second embodiment.

FIG. 9 is a sectional view taken along line AA of FIG. 8;

FIG. 10 is a sectional view taken along line BB of FIG. 8;

FIG. 11 is a diagram showing an example of a conventional piping structure.

FIG. 12 is a diagram showing an example of a conventional piping structure.

[Explanation of symbols]

 Reference Signs List 1 valve box 2 valve body 21 first valve body 22 second valve body 3 first opening 4 second opening 5 third opening 6 connection passage 7 first opening 8 second opening 9 third opening Department

Claims (2)

[Claims] 1. A valve box having a substantially triangular prism shape and having a first opening on an upper surface and second and third openings on a lower surface, and disposed on two side surfaces of the valve box, respectively. A two-way branch controller comprising two valve bodies, wherein the passage from the first opening is branched in two directions inside the valve box and is disposed at each branch path end. A two-way branch controller, characterized in that it can communicate with the second and third openings by opening and closing a diaphragm of a valve body. 2. A valve box having a substantially triangular prism shape and having a first opening on an upper surface, a second opening on a lower surface, and a third opening on a side surface, and two side surfaces of the valve box, respectively. A two-way branching controller, comprising a first and a second valve body disposed, wherein the first and the second valve bodies are communicated by a connection passage provided inside the valve box; The passage from the first opening is branched in two directions in the valve box, one of the passages can communicate with the second opening via the first valve body, and the other passage is a connection passage. A two-way branch controller, characterized in that it can communicate with the third opening through the second valve body.