TWM652314U - Three-way valve - Google Patents

Abstract

A three-way valve, including: a valve body, which has three communicating open ends and an inspection window, one of the three open ends forms a first valve hole facing an axis hole of the valve body, the valve Abnormalities inside the body are confirmed from the inspection window; a power cylinder, which is fixed on the outside of the valve body, and an output shaft of the power cylinder reciprocates relative to the shaft hole; and, a valve plug, which is installed A guide post passes through the shaft hole and is connected with the output shaft. The valve plug covers the first valve hole, and two of the three open ends are connected with each other. The first valve hole is opened due to the separation of the valve plug, and the three opening ends are interconnected, thereby increasing the flow of air inlet and outlet, and improving the efficiency of the waste gas treatment and recovery system of the three-way valve.

Description

Three-way valve

This creation relates to the field of valves, specifically a three-way valve, which not only operates reliably and smoothly, but also does not hinder the flow and velocity of the fluid.

Press, when assembling pipelines that generally transport liquids or gases (such as water pipes, oil pipes, various compressed gas pipelines or gas pipelines), in addition to being limited by the length of the pipeline, they must be connected by multiple pipelines. In addition to composition, the arrangement of pipelines can be used to transmit fluid to different components (or equipment). Usually, valves are used to connect pipelines, so that the valves can be further used to control the blocking or conduction of the connected pipelines, thereby controlling the supply or delivery direction of the fluid.

Among them, the three-way valve is a type of valve commonly used in fluid pipelines as one of the valves that controls the supply of fluid. In principle, a three-way valve is provided with three communicating open ends on its valve body, one of which forms a valve hole and is provided with a valve plug that can cover the valve hole. In addition, the valve body is provided with a driving element that relatively extends into the valve body and is connected with the valve plug for driving the valve plug, so that the valve plug can be driven by the driving element to change the covering or opening state of the valve hole. .

The valve plug of a commonly used three-way valve is mostly a sphere or disc that normally covers the valve hole. It mainly rotates in place so that the perforations on the sphere face the valve hole. The valve hole, or the way that the edge of the circular plate is staggered with the valve hole, allows the fluid to pass through the perforation of the ball or the gap between the circular plate and the valve hole, thereby achieving the purpose of opening the valve hole.

However, similar to conventional three-way valves, the valve hole must be completely covered with dimensional accuracy when the shape of the valve plug is completely tight with the valve hole. This not only requires higher processing costs, but also increases the valve plug movement time. friction resistance. When the valve plug makes the valve hole fully open, the valve plug itself is still horizontal in the valve hole, causing obstacles to the flow and velocity of the fluid. It is not suitable for use in large-diameter fluid pipelines.

In view of this, the author of this case provides a three-way valve, whose main purpose is to make the action more reliable and smooth without hindering the flow and velocity of the fluid.

In order to achieve the above purpose, the three-way valve of the present invention includes: a valve body, which has three communicating open ends and an inspection window, one of the three opening ends forms a first valve hole facing the valve body An axis hole, the abnormality inside the valve body is confirmed from the inspection window; a power cylinder, which is fixed on the outside of the valve body, and an output shaft of the power cylinder reciprocates relative to the axis hole; And, a valve plug, which is equipped with a guide post, which passes through the shaft hole and is connected to the output shaft; the valve plug covers the first valve hole, and two of the three open ends are connected with each other. ; The first valve hole is opened due to the separation of the valve plug, and the three opening ends are interconnected, increasing the flow of air inlet and outlet, and improving the efficiency of the waste gas treatment and recovery system of the three-way valve.

In a preferred embodiment, the guide post is coupled to the output shaft through two flange pieces.

In a preferred embodiment, two of the three opening ends are provided on the valve body. On both sides of the valve body, the remaining open ends are located at the bottom of the valve body, so that the first valve hole is located inside the bottom of the valve body.

In a preferred embodiment, a partition is formed inside the valve body, which separates the open ends on both sides of the valve body, and a second valve hole is formed in the partition and connected with the first valve body. The valve holes are opposite to each other. The valve plug covers the first valve hole, and the open ends on both sides of the valve body are connected through the second valve hole; the valve plug covers the second valve hole, and the first valve hole connects the bottom of the valve body with the two One open end of the valve body communicates with each other; the first valve hole and the second valve hole are opened due to the separation of the valve plug, and the three open ends of the valve body communicate with each other.

In a preferred embodiment, each of the three open ends is provided with a flange with a plurality of assembly holes for coupling with a pipeline for transporting fluid.

In a preferred embodiment, one of the three open ends is connected to the pipeline through a flange piece.

In a preferred embodiment, the power cylinder is selected from one of a hydraulic cylinder and a pneumatic cylinder.

The three-way valve of this invention can produce the following effects:

1. There is no frictional resistance between the valve plug and the first and second valve holes, so a relatively reliable and smooth action effect can be achieved.

2. When the first or second valve hole is open, the valve plug completely withdraws from the first or second valve hole, which will not hinder the flow and velocity of the fluid. It is especially suitable for application in large-diameter fluid pipelines. .

3. Driven by the power cylinder, the valve plug can be produced relatively quickly. action reaction effect.

10: Valve body

11: Open end

111:Flange

112: Assembly hole

121:First valve hole

122: Second valve hole

13: Shaft hole

14: Pipe joint

15:Partition

20:Power cylinder

21:Output shaft

211:Flange piece

30: Valve plug

31:Guide post

311:Flange piece

The first figure shows the two-way state of the first embodiment of the three-way valve of this invention.

The second figure shows the three-way state of the first embodiment of the three-way valve of this invention.

The third figure shows different two-way states of the second embodiment of the three-way valve of this invention.

The fourth figure shows different two-way states of the second embodiment of the three-way valve of this invention.

In the first figure, the first embodiment of the three-way valve of the present invention includes: a valve body 10, a power cylinder 20 and a valve plug 30.

Among them, the valve body 10 is made of CF8M material and is made into larger specifications to reduce corrosion defects caused by poor site conditions or long service life. The valve body 10 has three communicating open ends 11 , one of which forms a first valve hole 121 , facing an axis hole 13 of the valve body 10 . In this embodiment, two of the three open ends 11 are formed on both sides of the valve body 10 , and the remaining open end 11 is located at the bottom of the valve body 10 , so the first valve hole 121 is at the bottom of the valve body 10 the inside of.

In addition, the valve body 10 also has an inspection window (not shown), and abnormalities inside the valve body 10 can be confirmed through the inspection window. Each of the three open ends 11 is provided with a flange 111 having a plurality of assembly holes 112 for coupling with a pipeline (not shown) for transporting fluid.

In this embodiment, the power cylinder 20 is selected from a hydraulic cylinder with a larger bore or a Pneumatic cylinder. The power cylinder 20 is fixed on the outside of the valve body 10 , and an output shaft 21 of the power cylinder 20 reciprocates relative to the shaft hole 13 .

In this embodiment, through two steel ball holes (not shown), the valve plug 30 can be easily assembled and disassembled with a guide post 31. The guide post 31 passes through the shaft hole 13 and is coupled to the output shaft 21 through the two flange pieces 211 and 311 . 2. The flange pieces 211 and 311 are made of SUS316 material, which reduces corrosion defects caused by poor site conditions or long service life, and contributes to the modular design of the overall three-way valve.

According to different needs, select the appropriate power cylinder 20. When in use, the power cylinder 20 drives the output shaft 21 to move the guide post 31 toward the first valve hole 121 so that the valve plug 30 blocks the first valve hole 121 and blocks the flow of fluid into the valve body 10 . Effect. Of course, the open ends 11 on both sides of the valve body 10 are still connected.

As shown in the second figure, the output shaft 21 of the power cylinder 20 drives the output shaft 21 and the valve plug 30 to leave the first valve hole 121 . The first valve hole 121 is open, allowing the fluid to flow into the open end 11 at the bottom of the valve body 10 and then be discharged through the open ends 11 on both sides of the valve body 10 to achieve the control effect of flowing out. Among them, the size of each open end 11, flange 111 and assembly hole 112 is expanded to increase the air inlet and outlet flow of each pipeline and improve the efficiency of the three-way valve related to the exhaust gas treatment and recovery system.

Compared with the traditional structure, the functions of the three-way valve are as follows:

1. There is no frictional resistance between the valve plug and the first valve hole, so a relatively reliable and smooth action can be achieved.

2. When the first valve hole is open, the valve plug completely withdraws from the first valve hole, which will not cause any obstruction to the flow and velocity of the fluid. It is suitable for application in large diameters. fluid pipeline.

3. Driven by the power cylinder, the valve plug produces a relatively rapid action response effect.

As shown in the third and fourth figures, the structure of the second embodiment of the three-way valve is roughly the same as that of the first embodiment. The difference is that the open end 11 at the bottom of the valve body 10 is connected through a pipe joint 14 Corresponding pipelines.

Secondly, a partition 15 is formed inside the valve body 10 , and the partition 15 separates the open ends 11 on both sides of the valve body 10 . In addition, a second valve hole 122 is formed in the partition plate 15 and is spaced opposite to the first valve hole 121 .

When in use, the valve plug 30 covers the first valve hole 121 , and the open ends 11 on both sides of the valve body 10 communicate through the second valve hole 122 . The valve plug 30 covers the second valve hole 122 , and the first valve hole 121 allows one of the open ends 11 on both sides of the valve body 10 to communicate with the pipe joint 14 . Alternatively, the first valve hole 121 and the second valve hole 122 are opened due to the separation of the valve plug 30 , and the three opening ends 11 of the valve body 10 communicate with each other.

In other words, the three-way valve operates more reliably and smoothly without impeding the flow rate and flow rate of the fluid.

To sum up, this invention provides a better and feasible three-way valve, and it is necessary to submit a new patent application in accordance with the law. The technical content and technical features of this creation have been disclosed above. However, people familiar with this technology may still make various substitutions and modifications based on the disclosure of this creation without departing from the spirit of this creation. Therefore, the protection scope of this invention should not be limited to what is disclosed in the embodiments, but should include various substitutions and modifications that do not deviate from this invention, and are covered by the following patent application scope.

10: Valve body

11: Open end

111:Flange

112: Assembly hole

121:First valve hole

13: Shaft hole

20:Power cylinder

21:Output shaft

211:Flange piece

30: Valve plug

31:Guide post

311:Flange piece

Claims (7)

A three-way valve, including: a valve body, which has three communicating open ends and an inspection window, one of the three open ends forms a first valve hole facing an axis hole of the valve body, the valve Abnormalities inside the body are confirmed from the inspection window; a power cylinder, which is fixed on the outside of the valve body, and an output shaft of the power cylinder reciprocates relative to the shaft hole; and a valve plug, which is installed with a A guide post passes through the shaft hole and is connected to the output shaft; the valve plug covers the first valve hole, and two of the three open ends are connected to each other; the first valve hole is The valve plug is separated to open, and the three open ends are connected to each other, thereby increasing the flow of air inlet and outlet, and improving the efficiency of a three-way valve related to the exhaust gas treatment and recovery system. The three-way valve as claimed in claim 1, wherein the guide post is coupled to the output shaft through two flange pieces. The three-way valve as claimed in claim 1, wherein two of the three open ends are located on both sides of the valve body, and the remaining open ends are located at the bottom of the valve body, so that the first valve hole is located on the The inside of the bottom of the valve body. The three-way valve according to claim 3, wherein a partition is formed inside the valve body to separate the open ends on both sides of the valve body, and a second valve hole is formed in the partition. The plate is spaced opposite to the first valve hole; The valve plug covers the first valve hole, and the open ends on both sides of the valve body are connected through the second valve hole; the valve plug covers the second valve hole, and the first valve hole connects the bottom of the valve body with the two One open end of the valve body communicates with each other; the first valve hole and the second valve hole are opened due to the separation of the valve plug, and the three open ends of the valve body communicate with each other. The three-way valve as claimed in claim 1, wherein each of the three open ends is provided with a flange with a plurality of assembly holes for coupling to a pipeline for transporting fluid. The three-way valve as claimed in claim 5, wherein one of the three open ends is connected to the pipeline through a pipe joint. The three-way valve as claimed in claim 1, wherein the power cylinder is selected from one of a hydraulic cylinder and a pneumatic cylinder.

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