KR20080087335A - Valve with filter - Google Patents

Abstract

A valve with a filter is provided to prevent fluid leakage caused by damage to a seat by having the filter to remove impurities accumulated inside thereof. A valve(1) includes a body(10), a filter insertion hole(20), a filter(30), and a filter mounting unit(40). The body has an inlet(14) and an outlet(16), which are separated by a pipe wall(18) having a fluid outlet hole(12). The filter insertion hole is formed at a lower part of the body. The filter is inserted through the filter insertion hole and vertically formed under the fluid outlet hole to filter foreign materials in fluid. The filter mounting unit mounts the filter at the lower part of the body. The filter is installed in a direction of the fluid flowing upward to minimize interference on the fluid.

Description

VALVE WITH FILTER {VALVE WITH FILTER}

1-a block diagram of a globe valve according to the prior art.

2-a cross-sectional view of a valve assembly having a filtering device according to the prior art;

3-a block diagram of a valve provided with a filter according to an embodiment of the present invention.

4-a side view of FIG.

<Description of Major Symbols Used in Drawings>

1 valve 2 valve shaft

4: disc 6: sheet

10 valve body 12 fluid outlet hole

14 inlet port 16 outlet

18: pipe wall 20: filter insertion port

30 filter 32 filter network

34: filter screen 50: spring

The present invention relates to a valve equipped with a filter, and more specifically, to filter the foreign substances contained in the fluid through a filtration device installed perpendicular to the inlet in the valve to prevent damage to the seat to prevent leakage and at the same time as the outlet It relates to a valve provided with a filter for preventing the back flow of the fluid flowing.

In general, the valve is installed at the connection part or one end of the pipe in order to control the flow rate and flow of the fluid, and refers to a device that can be opened and closed by the user. The main component is basically composed of the valve body, the valve seat and the disk, the opening and closing of the flow path of the valve is made by the rotation or vertical action of the disk.

Various valves have advantages and disadvantages depending on the application conditions and are widely used to meet the necessary conditions according to their characteristics. These valves can be classified into manual valves and automatic valves according to the opening and closing operation method.

The manual valve comprises a globe valve, a gate valve, a plug valve, a ball valve, a butterfly valve, and a pinch valve, and the automatic valve has an actuator type, a two-way body, a three-way body, and a butterfly arrangement.

Hereinafter, a schematic diagram of a globe valve in a manual valve according to the prior art will be described. FIG. 1 shows a side view of a globe valve according to the prior art.

As shown in Fig. 1, the conventional globe valve adjusts the flow rate by forcibly moving the disc disk 4 from the annular ring or seat 6 surrounding the fluid passage.

The conventional globe valve is widely used in other plumbing equipment such as cooling, heating plumbing equipment and water supply equipment, and has the advantage of controlling the flow rate of the fluid, whereas the inside of the pipe is clogged by foreign matter contained in the fluid.

In order to solve this problem, Korean Patent Application Publication No. 20-0218334 discloses a valve assembly in which a filtering device is integrally formed. 2 is a cross-sectional view of the present invention.

2, the valve assembly including the filtering device according to the related art is integrally formed with a gate valve 100 and a strainer 200 connected to a liquid or steam inlet for distribution of water and oil supply or steam. The check valve 300 is composed of a single body.

The strainer 200 is installed in contact with the inlet of the gate valve 100 and a check valve is installed at the inlet of the strainer and the strainer. The strainer 200 is a filter made of a filter net for filtering the solid foreign matter mixed into the liquid or steam, the check valve 300 is a valve for preventing the liquid flow back to the liquid flow to only one side.

Therefore, in the embodiment of FIG. 2, water, oil, steam, or the like (hereinafter, symmetrical with fluid for convenience) flows in one direction. When the flow path is opened by manually operating the gate valve 100, the fluid flows through the flow. The check valve 300 is opened by the pressure of the fluid and passes through the gate valve 100 via the strainer 200.

In this process, the strainer 200 filters out the mixed solid foreign matter of the fluid so that only the filtered fluid passes through the gate valve 100. Through the structure as described above there is an advantage that can strain the foreign material using the strainer 200, but the position of the strainer 200 is located at a predetermined angle and the direction of the flow of the fluid may interfere with the flow of the fluid. In addition, since the strainer 200 is inclined at a predetermined angle, it is difficult to remove the strainer 200 together with the internal fluid during replacement. If the filter is not frequently replaced, impurities may accumulate in the valve and leak due to damage to the seat. There was a problem that could occur.

Therefore, in order to solve the above problems, the present invention is provided with a filter which is provided with a filter inside the valve to prevent the fluid from being leaked due to the accumulated impurities, and to facilitate the replacement of the filter. It is an object to provide a valve.

A filtration device with a filter according to the present invention for achieving the above object comprises: a valve body having an inlet and an outlet defined by a pipe wall in which a fluid outlet hole through which a fluid can flow is formed; A filter insertion hole formed open in a lower portion of the valve body; A filter inserted through the filter insertion hole and formed perpendicular to a lower portion of the fluid outlet hole to filter foreign substances in the fluid; It is preferable to include a; filter mounting port for mounting the filter on the valve body.

And it is preferable that the filter is characterized in that the filter screen is further provided on one side.

Hereinafter, a valve with a filter according to the present invention will be described in more detail with reference to the accompanying drawings.

3 is a block diagram of a valve provided with a filter according to an embodiment of the present invention, Figure 4 is a side view of FIG.

As shown in the drawing, a valve having a filter according to the present invention includes a valve body 10, a filter insertion hole 20 for inserting a filter 30 to be described later, a filter 30 for filtering foreign substances, and the filter ( It is composed of a filter mounting hole 40 for fixing 30 to the valve body 10, and a spring 50 to prevent the back flow of the fluid.

First, the valve body 10 is provided with an inlet 14 and an outlet 16 at both sides, and the inlet 14 and the outlet 16 are separated by a pipe wall 18. A fluid outlet hole 12 through which fluid flows from the inlet port 14 to the outlet port 16 is formed in the middle portion of the separated pipe wall 18, and when the valve 1 is closed, the fluid outlet hole 12 is formed. This blocking prevents the fluid from flowing into the outlet 16, and when the valve 1 is opened, the fluid outlet hole 12 is opened to form the fluid into the outlet 16.

Next, the filter insertion hole 20 is formed at the lower side of the valve body 10 so as to be opened and closed to easily replace the filter 30 to be described later.

Next, the filter 30 is formed in a cylindrical shape on one side of the inlet 14, and is located in parallel with the valve shaft 2. Therefore, the filter is installed in the direction in which the fluid flows upward by the pumping to minimize the obstruction to the flow of the fluid so that the fluid is filtered through the filter 30 to move to the outlet 16. And a plurality of filter net 32 is formed on the side surface of the filter 30 is formed to filter foreign matter.

In addition, the filter screen 34 additionally mounted to the side of the filter 30 is formed of a myriad of holes smaller in diameter than the filter net 32 can filter the finer foreign matter to flow the fluid to the outlet 16 It is possible to filter the fluid in duplicate.

Next, the filter mounting hole 40 is fixedly installed on the valve body 12 so that the fluid is not leaked to the outside, and optionally, a packing (not shown) is applied and the filter 30 is tightly fixed in the valve body 12. Can be formed.

Finally, the spring 50 is formed inside the cylindrical disk 4 which blocks or opens the fluid outlet hole 12 and surrounds the valve shaft 2. In addition, the spring 50 is formed at one end of both sides of the pipe wall 18 to allow the disk 4 to come into close contact with or detached from the seat 6, which can increase the adhesion, thereby controlling the flow of the fluid. This control is made up of the distribution of the balance of the elastic force of the spring 50 and the force for pumping the fluid to the outlet 16, the fluid outlet hole 12 through the inlet 14 through the fluid than the elastic force of the spring 50 If the pumping force is greater, the disk 4 moves upwards and the fluid flows to the outlet 16. In the opposite case, the disk 6 moves downward by the elastic force of the spring 50. By being in close contact with the seat 6, it is possible to prevent the fluid that has moved to the outlet 16 from flowing back to the inlet 14.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments thereof are possible. The true technical scope of the invention should be defined only by the appended claims.

The valve provided with the filter of the present invention according to the configuration as described above has the effect of preventing damage to the seat by preventing foreign matter contained in the fluid through the filter while reducing the flow of the fluid to prevent leakage.

And, when replacing the filter, there is another effect that is easy to replace simply without disassembling the valve.

Claims (2)

A valve body (10) having an inlet port (14) and an outlet port (16) separated by a pipe wall (18) having a fluid outlet hole (12) through which fluid can flow; A filter insertion opening 20 formed to be opened under the valve body 10; A filter 30 inserted through the filter insertion hole 20 and formed perpendicularly to the lower portion of the fluid outlet hole 12 to filter foreign substances in the fluid; A filter mounting hole 40 for mounting and coupling the filter 30 to the lower portion of the valve body 10, wherein the filter 30 is installed in the direction of the fluid flowing upward to minimize the disturbance of the flow of the fluid. Valve with a filter, characterized in that the. The method of claim 1, wherein the filter 30, A filter with a filter, characterized in that the filter screen 34 is further provided on one side.

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