JPH04129974U - Three-way valve strainer device - Google Patents

Abstract

(57) [Summary] [Configuration] A valve that can be rotated in the installed position, has a fluid flow path perpendicular to the rotation axis when viewed from the rotation axis direction, and has a built-in strainer in the fluid flow path. It has a valve body and a valve outer shell which rotatably houses the valve body and has an inner wall surface as a valve seat, and communicates with the fluid passage of the valve body when fluid flows, that is, when the valve is opened, and the valve outer shell This is a three-way valve type strainer device that has a fluid inlet passage and an outlet passage connected to the valve seat and communicating with the outside.
When the fluid flow of this device is stopped, that is, when the valve is closed, a strainer attachment/detachment port is provided which communicates with the fluid flow path of the valve body and communicates with the outside of the valve shell. The strainer provided in the fluid flow path of the valve body is detachable. [Effect] According to this strainer device, there is no need to install a strainer and a valve separately. Therefore, a compact design is possible. In addition, the strainer is easy to clean and there is far less fluid flowing out than in the past, making it suitable for hazardous and combustible fluids. It also helps prevent product loss.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a three-way valve with a built-in strainer that incorporates a strainer inside the valve body of the three-way valve. related.

0002

[Problems to be solved by conventional techniques and ideas]

Traditionally, strainers are installed in pipes and pump suctions, so they In order to drain the fluid inside and perform cleaning, especially in the case of pump suction A large amount of fluid is required for cleaning.

0003 To explain this according to FIG. 4, the conventional strainer 02, the strainer mesh 228 is attached to the straight pipe section 204 of the pipe. Inra In the in-type, the valves 210 and 212 are installed as shown in Figure 4(A), and the valves 210 and 212 are installed at both ends of the straight Y-shaped pipe. The strainer mesh is attached/removed, replaced, and cleaned with the valve closed, but the liquid between both valves is In such cases, it had to be discharged outside, which was time-consuming. On the other hand, the point in (B) of Figure 4 In the case of a pump suction type, etc., the strainer mesh 228 is attached, detached, and replaced. In this case, the liquid must be discharged including the pump 220 between both valves 210 and 212. It was even more time-consuming to deal with this. Also, in both of these cases, as is already clear Another problem was that valves at both ends were required.

0004 In the example of FIG. 4, the liquid flows from the valve 210 to the valve 212 through the strainer mesh. Foreign matter is removed by the mesh tube 228 and the mesh exits toward the valve 212 from the outer circumferential side of the mesh.

[0005]

[Means to solve the problem]

This idea was created in view of the above circumstances, It is possible to rotate around the rotation axis, and the fluid flow is perpendicular to the rotation axis when viewed from the rotation axis direction. A valve body with a passageway, a valve outer shell that rotatably houses the valve body, and has an inner wall surface as a valve seat. , communicates with the fluid flow path of the valve body during fluid flow, that is, when the valve is opened, and communicates with the outside of the valve shell. A fluid inlet passage and an outlet passage connected to the valve seat, and a valve that stops fluid flow. When closed, there is a strainer attachment/detachment port that communicates with the fluid flow path of the valve body and communicates with the outside of the valve shell; A strainer detachably installed in the fluid flow path of the valve body through the strainer attachment/detachment port. A three-way valve strainer device characterized by having It provides:

[0006]

【Example】

Next, the present invention will be explained in more detail based on illustrated embodiments. FIG. 1 is a sectional view of one embodiment of the strainer device of the present invention. In the figure, 10 is the valve body 1 4, and in this case, it extends from the front to the back of the paper. . 12 is a fluid flow path provided in the valve body 14, 16 is a valve seat that holds the valve body 14, and 18 is a fluid flow path provided in the valve body 14. The valve shell 20, 22 of this valve seat has a fluid inlet passage and an outlet connected to the fluid valve seat 16. This is an opening passage, and 24 and 24 are piping connected to both sides thereof, respectively. 26 When the fluid flow is stopped, that is, when the valve is closed, the fluid passage 12 inside the valve body is connected to the outside of the valve shell. This is a port for attaching and detaching the strainer for communication. 28 is detachably attached to the fluid flow path 12. Strainer mesh. 30 is a lid for the strainer attachment/detachment opening.

[0007] To use this strainer device, the piping 24, Attach it between 24 and allow fluid to pass through. Next, clean the strainer mesh 28. To do this, rotate the valve body 14 90 degrees counterclockwise around the rotation shaft 10, and ), the fluid flow path 12 is aligned with and communicates with the strainer attachment/detachment port 26, and the strainer Remove the trainer mesh 28 and clean or replace it. At this time, the fluid inlet The passage 20 and the fluid outlet passage 22 are blocked by the outer part 14a of the valve body 14. , there is no need to provide a valve on the piping 24 side.

[0008] Figures 2 (A), (B), and (C) show various methods for cleaning, replacing, etc. the valve body of the device in Figure 1. FIG. 2(A) is a cross-sectional view showing the mode of cleaning, and FIG. 2(A) is a case of hand cleaning (manual). Yes, a lid 30 is provided on the strainer attachment/detachment port 26, and the lid 30 is opened as shown in the figure. The strainer mesh 28 is then removed and cleaned as described above.

[0009] FIG. 2(B) shows a case where the strainer mesh 28 is cleaned with another fluid. 32 is a cleaning fluid introduction pipe provided through the valve outer shell, and 34 is a cleaning fluid introduction pipe provided through the lid 30. This is a cleaning fluid outflow pipe.

0010 FIG. 2(C) shows an embodiment in which the strainer mesh 28 can be cleaned with its own fluid. 36 is a cleaning fluid introduction pipe, which directs the fluid from the pipe 24 to the fluid flow of the valve body 14. The strainer mesh 28 is introduced into the strainer 12 to automatically clean the strainer mesh 28. be. The used cleaning fluid flows out from the cleaning fluid outlet pipe 34.

[0011] FIG. 3 shows another embodiment of the three-way strainer device of the present invention. 114 is a truncated cone 116 is a valve seat, 112 is an inclined fluid flow path formed in the center of the valve body, The rotation axis of the valve body in this case is indicated by 110. In this case as well, when cleaning the rotating shaft Rotate the valve body until the flow reaches the strainer attachment/detachment port 126 as shown in Figure 3(B). The strainer mesh 28 is attached/detached and cleaned while the body flow path 112 is aligned. In addition, the figure 3, the same symbols as in FIG. 1 indicate the same things. In the embodiment shown in FIG. 3, the strainer mesh 28 needs to be fixed with screws, etc. However, it is easy to take out.

0012 As is clear from the above explanation, in the present invention, the valve body is ball-shaped. The most typical shape is a lube shape, but truncated conical shapes, cylindrical shapes, etc. can also be used. There are no particular restrictions on the condition.

[0013]

[Effect of the idea]

According to the present invention, there is no need to install a strainer and a valve separately. Therefore, con A compact design is possible. In addition, the strainer is easy to clean, replace, etc. difference Furthermore, the fluid can be sealed very close to the strainer, making it easier to clean the strainer. In this case, the outflow of fluid is extremely small compared to conventional technology, and it is suitable for hazardous materials and combustible fluids. suitable for It also helps prevent product loss. Furthermore, the ball structure can speed up cleaning work.

[Brief explanation of drawings]

FIG. 1 is a sectional view of one embodiment of a strainer device.
(A) shows the open state of the valve body, and (B) shows the closed state of the valve body.

FIG. 2 is a sectional view showing three usage modes (A), (B), and (C) of the strainer device of FIG. 1;

FIG. 3 is a sectional view of another embodiment of the strainer device.
(A) shows the open state of the valve body, and (B) shows the closed state of the valve body.

FIG. 4 is a schematic diagram of a conventional strainer, in which (A) shows an in-line type strainer and (B) shows a pump suction type strainer.

[Explanation of symbols]

10 Rotation axis 12 Fluid flow path 14 Valve body 16 Valve seat 18 Valve shell 20 Fluid inlet passage 22 Fluid outlet passage 24 Piping 26 Strainer attachment/detachment port 28 Strainer mesh 30 Lid 32, 36 Cleaning fluid introduction pipe 34 Cleaning fluid outflow pipe

Claims (1)

[Scope of utility model registration request] Claim 1: A valve body that is rotatable in the installed position and has a fluid flow path orthogonal to the rotation axis when viewed from the rotation axis direction; a valve outer shell having a valve seat, and a fluid inlet passage and an outlet passage connected to the valve seat, which communicate with the fluid flow path of the valve body when fluid flows, that is, when the valve is opened, and which communicate with the outside of the valve outer shell. When fluid flow is stopped, that is, when the valve is closed, the strainer is connected to the fluid flow path of the valve body and communicated with the outside of the valve shell, and the strainer can be attached and detached into the fluid flow path of the valve body through the strainer attachment and detachment port. A three-way valve type strainer device, characterized in that it has an attached strainer.