JPH0627557B2 - Fluid control valve - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fluid control valve used in a piping system, and more particularly, to an arrangement direction of at least two pipe parts for controlling a fluid flow direction by the fluid control valve. The present invention relates to a fluid control valve that can be arbitrarily changed and that facilitates cleaning in the piping system.

[Prior Art] For example, a conventional fluid control valve described in Japanese Utility Model Laid-Open No. 56-8975 will be described with reference to FIG.

The main body (1) is provided with an introduction part (5), a discharge part (6) and a valve part (7) for a controlled fluid (8) such as a chemical. The introduction part (5) and the discharge part (6) are partitioned by the partition (1a), and the introduction part (5), the valve part (7) and the discharge part (6) are passed through the openings (1b) and (1c).
Are in communication with each other. The fluid control valve shown in FIG.
The opening (1b) connecting the introduction part (5) and the valve part (7) is shielded by the valve body (3). The valve body (3) can be moved up and down in the directions indicated by arrows A and A'by an air cylinder (not shown), an electromagnet or the like via the valve rod (4). The controlled fluid (8) flows into the introduction part (5) at a predetermined pressure from the introduction port (5a) of the introduction part (5) in the direction indicated by the arrow B.

When the valve (3) rises in the direction indicated by arrow A, the controlled fluid
(8) is a valve part that is bent in the vertical direction by the predetermined pressure.
It flows into (7), further flows into the discharge part (6) through the opening (1c), and is discharged from the discharge port (6a).

The valve body (3) is lowered in the direction indicated by arrow A'and the opening (1b) is closed or closed to prevent the controlled fluid (8) from flowing from the introduction portion (5) to the discharge portion (6). The controlled fluid (8) is controlled. At this time, the controlled fluid (8) remaining in the valve portion (7) all flows into the discharge portion (6) through the opening portion (1c).

FIG. 5 shows an example in which a piping system is constructed using the conventional fluid control valve shown in FIG. Piping (13b), (13c) and
(13d) has storage tanks (20a), (20a)
b) and (20c), and the other end is connected to the fluid control valves (10b), (1
It is connected to 0c) and (10d). Furthermore, each fluid control valve
(10b), (10c) and (10d) are T-tubes (12a), (12
b) and L-tube (12c), and T-tubes (12a), (1
2b) and the L-shaped tube (12c) are connected in series in a line. The fluid control valves (10a), (10b), (10c) and (10d) are driven by air cylinders (11a), (11b), (11c) and (11d), respectively.

[Problems to be Solved by the Invention] In the conventional fluid control valve, in order for the controlled fluid (8) to flow from the introduction portion (5) to the discharge portion (6), it is necessary to once pass through the valve portion (7) for partitioning (8). You must overcome 1a). Therefore, the fifth
In the piping system shown in the figure, when the fluid control valve (10a) is attached so that the introduction direction and the discharge direction are horizontal, the controlled fluid (raw material) that is the raw material is controlled by the rising portion formed by the partition (1a). There is a problem that the controlled fluid remains in the T-shaped tubes (12a), (12b), the L-shaped tube (12c), etc. due to the 8) being dammed.

Furthermore, the conventional fluid control valve has a controlled fluid inflow / outflow end of 2
In order to construct a piping system provided with a plurality of inflow and outflow pipes as shown in Fig. 5, a T-shaped pipe (12a) or L-shaped pipe (12c) must be used. However, there is a problem that unwashed parts are left in the recessed portion (12x) of the T-shaped tube (12a) and the discharge portion (6a) of the fluid control valve (10a) during the cleaning.

The present invention has been made to solve the above problems, and a piping system having a plurality of inflow / outflow pipes can be easily configured without using a T-shaped pipe or an L-shaped pipe,
Moreover, it is an object of the present invention to provide a fluid control valve in which the controlled fluid does not remain in the pipe portion and can be easily washed.

[Means for Solving the Problems] A fluid control valve according to the present invention has: (a) a pipe connecting opening formed on one surface of a first block for letting a controlled fluid flow in and out; A first pipe portion connected to a through hole penetrating the first block; disposed substantially penetrating the through hole, and having a tip portion near the one opening portion of the through hole; A bar-shaped portion arranged to reciprocate in a direction substantially perpendicular to the axis of the first pipe portion to open and close the valve, and an edge portion of the other opening of the through hole. And a diaphragm portion that is fixed to the outer periphery of the rear end portion of the rod-shaped portion and seals the other opening portion of the through hole, and the other opening portion of the through hole of the first block while interposing the diaphragm portion. While blocking the surface with
A cover that penetrates a drive shaft that drives the rod-shaped portion, a central axis of the rod-shaped portion that is provided on one surface of the first block that has an opening of the through-hole in which a tip end portion of the rod-shaped portion is disposed. A first fitting portion having a ring-shaped stepped portion centered at, and (b) a second unit consisting of a second block facing the tip of the rod-shaped portion. A second fitting portion formed on one surface and having an annular step portion rotatably and separably fitted into an annular step portion of the first unit; a tip end portion of the rod-shaped portion; A second opening which is formed to have a central axis in the same direction as the operating direction of the rod-shaped portion and has an opening at a position opposed to the second opening, and the length along the central axis is shorter than the diameter of the opening. A tube portion of the second tube portion, the tube portion being provided in a direction substantially perpendicular to a central axis of the second tube portion, and 2 of the pipe section and the inside conductive as the controlled fluid flows in and out, further pipes connecting opening for and out flow of the controlled fluid at least 1
A third pipe portion having one valve hole, which is mounted inside the annular step portion of the second fitting portion, and which is opened and closed by the tip portion of the rod-shaped portion as the valve head portion by the reciprocating movement of the rod-shaped portion. A valve seat having a portion, wherein the first pipe portion and the third pipe portion form an arbitrary angle with respect to the first unit about a central axis of the rod-shaped portion. As described above, the first unit fitting portion and the second unit fitting portion are fitted to each other so that the second unit is rotatably and detachably configured. .

[Operation] FIG. 1 is a sectional view showing an embodiment of the fluid control valve according to the present invention, and FIG. 2 is an exploded perspective view of the fluid control valve of FIG.

The first pipe part (101) and the third pipe part (201) are provided so that their axes are substantially perpendicular to the operating direction of the rod-shaped part (103X) of the valve body (103). And valve body (103)
The second pipe part (202) connecting the valve part (104) having the and the third pipe part (201) is provided so that its axis is in the same direction as the operating direction of the rod-shaped part (103X). And the second pipe section (20
The length along the central axis is shorter than the diameter of the opening in 2). Therefore, when the fluid control valve according to the present invention is used in a piping system having a plurality of inflow and outflow pipes, one of the first pipe portion (101) and the third pipe portion (201) is controlled by the controlled fluid. If set as the inflow side of
The controlled fluid that has flowed into the valve portion (104) is completely discharged from the other pipe portion on the discharge side.

In the fluid control valve having the first unit (100) and the second unit (200), the first fitting portion (100X) of the first unit (100) and the first unit (100X) of the second unit (200) 2 mating parts (200)
Are mounted so as to be rotatable and separable from each other, and the first unit (100) and the second unit (200) are rotatable and removable from each other. Therefore, the first pipe portion 101 and the third pipe portion 201 are arranged at an arbitrary angle.

[Embodiment] An embodiment of the fluid control valve according to the present invention shown in FIGS. 1 and 2 will be described below. FIG. 1 is a sectional view of the fluid control valve of the present embodiment, and FIG. 2 is an exploded perspective view of the fluid control valve of FIG. As shown in FIGS. 1 and 2, the fluid control valve of the present embodiment includes a first unit (100) and a second unit (100).
Equipped with the unit (200) of the first unit (100)
The second unit (200) and the second unit (200) are configured to be rotatable and detachable with respect to each other as described later.

The first unit (100) is the first block (100A) and cover
(107) and this first block (10
The first pipe part (101), the valve part (104) and the first fitting part are included in (0A).
(100X) is provided. The pipe connecting opening (101X), which is one opening end of the first pipe portion (101), is formed on the side surface of the first block (100A), and the other end of the first pipe portion (101). The open end of is a through hole that penetrates the first block (100A)
It is connected to (500). The through hole (500) is formed so that the central axis thereof is orthogonal to the central axis of the first pipe portion (101), and a valve portion (104) having a valve body (103) is arranged. Has been done.

As shown in Fig. 1, the rod-shaped part (103X) and the diaphragm part (1
03Y) and the valve body (103) is arranged so as to move up and down in the through hole (500), the rod-shaped portion (103X) the tip portion (103Z) as a valve head. Reciprocating the inside of the through hole (500) to open and close the valve hole portion (106X) of the valve seat (106) disposed near one opening portion (500X) of the through hole (500) Has been done.

The upper outer peripheral edge of the diaphragm portion (103Y) shown in FIG.
The lower tubular portion of the diaphragm portion (103Y) is fixed to the upper edge of the other (upper) opening of the through hole (500) and the rod portion (1
It is fixed to the outer periphery of the upper end of 03X) and is arranged so as to seal the other opening of the through hole (500). The opening above the through hole (500) is closed by the cover (107),
The outer peripheral edge of the upper part of the diaphragm part (103Y) is covered (10
It is sandwiched between 7) and the first block (100A). The cover (107) is penetrated by a drive shaft of a drive source (300) such as an air cylinder for moving the valve body (103) up and down.

As shown in FIG. 2, one opening (50) of the through hole (500) is formed.
The first fitting portion (100X) is formed around (0X), and the first fitting portion (100X) is an annular step portion around the central axis of the rod-shaped portion (103X). (Recess).

On the other hand, the second unit (200) is composed of a second block (200A), and the second block (200A) is rotatable with the stepped portion (recess) of the first fitting portion (100X). And a second fitting portion (200X) having a splittable annular step (projection) is formed. In addition, the second block (200A) has a second
At the center of the annular step (projection) of the mating part (200X) of
A second tube section (202) having 02X) is formed. Second
The pipe part (202) is formed so as to have a central axis in the same direction as the operating direction of the rod-shaped part (103X), and in order to prevent chemicals or the like as the controlled fluid from remaining inside thereof. The opening (202X) of the second pipe portion (202) is formed so that the depth (the length along the central axis) is shorter than the diameter thereof.
It is desirable that the depth of the second pipe portion (202) be as shallow as possible (shorter in length) than the diameter of the opening portion (202X). The second pipe part (202) and the third pipe part (201) that is electrically connected to the controlled fluid (8) to flow in and out of the second pipe part (202) are
It is provided in a direction substantially perpendicular to the central axis of the second tube portion (202). As shown in FIG. 1, the third pipe part (201) is provided so as to penetrate the second unit (200) and has pipe connection openings (201X) and (201Y) formed on both sides thereof. ing. The third pipe part (201) shown in FIG. 1 is provided so as to penetrate the second unit (200), but as a modification of the present embodiment, the third pipe part (201) is provided. Alternatively, one opening end may be connected to the second block (200A) as an opening for connecting a pipe.

As shown in FIG. 2, the valve seat (106) having the valve hole portion (106X) opened and closed by the reciprocating motion of the rod-shaped portion (103X) is
It is attached to the inside of the annular step (convex) of the fitting part (200X) and is sandwiched between the first block (100A) and the second block (200A). .

The fluid control valve includes a first pipe portion (101), a second pipe portion (202), and a third pipe portion so that the fluid control valve is used in a chemical manufacturing process or the like.
The inner wall of each of the (201) and the valve portion (104) is a coating (10) made of a resin having chemical resistance, such as a fluorine-based resin.
It is covered by 2), (203), and (108). The valve body (103) and the valve seat (106) are also made of resin or the like having chemical resistance. In addition, the opening (101X) of the first pipe part (101) and the openings (201X) and (20X) of the third pipe part (201).
Each 1Y) has a structure that can be connected to other pipes such as standard pipes.

Next, FIG. 3 shows a piping system in which a plurality of the fluid control valves described above are used and combined with a known air cylinder or pipe. In FIG. 3, (a), (b), (c), (d) and (e) show the respective fluid control valves, (100a), (100b), (100c), (100d) and (100).
e) is the first unit of the fluid control valves (a), (b), (c), (d) and (e), and is (200a), (200b), (200c), (200).
d) and (200e) are fluid control valves (a), (b), (c), (d) and
It is the second unit of (e). Also, (300a), (300b), (30
0c), (300d) and (300e) are known air cylinders, and are (400b), (400c), (400d), (400e), (400g), (400
h), (400i), (400j), and (400k) are known pipes. FIG. 3 schematically shows a piping system constituted by the above parts.

The fluid control valves (a) and (b) are respectively the third one in FIG.
The pipe part (201) of the first pipe part (10) is used as the flow part of the controlled inflow body.
1) is used as the controlled fluid discharge part, and the air cylinder (so that the direction of action of the valve body (103) is perpendicular to the direction of action of gravity (that is, parallel to the ground). The operating directions of (300a) and (300b) are arranged to be parallel to the ground. Where the fluid control valve
The opening (20) of the third pipe portion (201) of each of (a) and (b)
1X) and (201Y) are connected to known pipes (400b) and (400c). The openings (101X) of the respective first pipe portions (101) are connected to the pipes (400j) and (400k), respectively.

The fluid control valves (c), (d) and (e) respectively use the first pipe part (101) in FIG. 1 as an inflow part for the controlled fluid and the third pipe part (201) for the controlled fluid. The air cylinders (300c), (300d) and ((d) are used so that the valve body (103) acts in the same direction as the action direction of gravity (that is, perpendicular to the ground). The operation direction of 300e) is arranged to be perpendicular to the ground. In the figure, the first pipe part (101) and the third pipe part (201) are all arranged so as to form a substantially right angle, but as described above, the first unit (1
Since 00) and the second unit (200) are rotatable so as to form an arbitrary angle with each other, the pipe can be installed in any direction.

The pipes (400g), (400h) and (400i) are respectively connected to a raw material tank (not shown) and the controlled fluid is indicated by an arrow F,
Fluid control valves (c), (d) and in the directions shown in G and H
It flows into (e). Here, for example, the air cylinder (300
By operating b) and (300c) to open a valve not shown in the figure, the controlled fluid flows from the arrow F to the arrow E and flows into a reaction tank (not shown) or the like.

Next, in order to clean this piping system, it is sufficient to flow the cleaning liquid in the direction indicated by the arrow H and discharge it in the direction indicated by the arrow D. In each fluid control valve in this piping system, the controlled fluid does not always remain. As described above, since the cleaning liquid flows through the entire discharge portion, there is no unwashed portion.
Further, as is apparent from FIG. 3, if the piping system is configured as described above using the fluid control valve according to the present invention, the T-shaped pipe and / or the L-shaped pipe becomes unnecessary.

EFFECTS OF THE INVENTION As described above, in the fluid control valve according to the present invention, the operation of the valve element (103) in the first pipe portion (101) and the third pipe portion (201) is the valve portion (104). It is provided in a direction substantially at an angle with respect to the direction. Further, a second pipe portion (202) for connecting the valve portion (104) and the third pipe portion (201) is provided in the same direction as the operation direction of the valve body (103), and the opening portion thereof is Comparing the caliber and the length, the length is shorter. Therefore, even if either the first pipe part (101) or the third pipe part (201) is set as the inflow side of the controlled fluid (8), the controlled part that has flowed into the valve part (104) is controlled. All of the fluid discharge side is reliably discharged from the other pipe section. Therefore, when cleaning the piping system, the controlled fluid does not remain and can be easily cleaned.

Further, the fluid control valve of the present invention comprises a first unit (100).
Since the second unit (200) and the second unit (200) are rotatable and detachable, the first pipe portion (101) and the third pipe portion (201) are set to form an arbitrary angle with each other. be able to. Therefore, according to the present invention, when configuring the piping system,
Without the use of T-tubes and L-tubes, the flexibility of the piping in the piping system is greatly increased resulting in a fluid control valve that is easy to handle.

[Brief description of drawings]

FIG. 1 is a sectional view showing the construction of an embodiment of the fluid control valve according to the present invention, FIG. 2 is an exploded perspective view of the fluid control valve of FIG. 1, and FIG. 3 is a diagram showing the fluid control valve according to the present invention. The figure which shows the piping system used, FIG. 4 is sectional drawing which shows the conventional fluid control valve, and FIG. 5 is the figure which shows the piping system which used the conventional fluid control valve. In the figure, (100) is the first unit, (100X) is the first fitting part,
(101) is the first pipe part, (103X) is the rod part, (103Y) is the diaphragm part, (106) is the valve seat, (106X) is the valve hole part, (107) is the cover, (200) is the first part. 2 unit, (200X) is a second fitting portion, (201) is a third pipe portion, (202) is a second pipe portion, and (500) is a through hole.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Kato 610-10 Ikose, Shiose-cho, Nishinomiya-shi, Hyogo Prefecture (72) Inventor Seigo Ishioka 1412 Toda, Atsugi-shi, Kanagawa Prefecture (72) Koji Fujimoto Ikoma-ichi, Nara Prefecture 1220-4, Machimachi (56) References: 58-1442463 (JP, U): 49-5038 (JP, U): 38-15274 (JP, Y1): 38-15275 ( JP, Y1) Actual public Sho-39-21484 (JP, Y1)

Claims (1)

[Claims] (A) One end of a pipe connecting opening formed on one surface of a first block for letting a controlled fluid flow in and out, and the other end is connected to a through hole penetrating the first block. A first pipe portion that is disposed so as to substantially penetrate the through hole, and a tip portion of the first pipe portion is a valve head portion in the vicinity of one opening portion of the through hole with respect to the axis of the first pipe portion. A rod-shaped portion arranged to reciprocate substantially in the direction of a right angle to open and close the valve, and fixed to the edge of the other opening of the through hole and the outer periphery of the rear end of the rod-shaped portion. And a diaphragm portion for sealing the other opening of the through hole, while interposing the diaphragm portion, while closing the surface of the other opening of the through hole of the first block,
A cover that penetrates a drive shaft that drives the rod-shaped portion, a central axis of the rod-shaped portion that is provided on one surface of the first block that has an opening of the through-hole in which a tip end portion of the rod-shaped portion is disposed. A first fitting portion having a ring-shaped stepped portion centered at, and (b) a second unit consisting of a second block facing the tip of the rod-shaped portion. A second fitting portion formed on one surface and having an annular step portion rotatably and separably fitted into an annular step portion of the first unit; a tip end portion of the rod-shaped portion; A second opening which is formed to have a central axis in the same direction as the operating direction of the rod-shaped portion and has an opening at a position opposed to the second opening, and the length along the central axis is shorter than the diameter of the opening. A tube portion of the second tube portion, the tube portion being provided in a direction substantially perpendicular to a central axis of the second tube portion, and 2 of the pipe section and the inside conductive as the controlled fluid flows in and out, further pipes connecting opening for and out flow of the controlled fluid at least 1
A third pipe portion having one valve hole, which is mounted inside the annular step portion of the second fitting portion, and which is opened and closed by the tip portion of the rod-shaped portion as the valve head portion by the reciprocating movement of the rod-shaped portion. A valve seat having a portion, wherein the first pipe portion and the third pipe portion form an arbitrary angle with respect to the first unit about a central axis of the rod-shaped portion. And a second unit configured to be rotatable and detachable by fitting the first unit fitting portion and the second unit fitting portion as described above. valve.