KR200168576Y1 - Disc - Google Patents

Abstract

[1] Technical Field

A recess structure of a disk for a valve seat inserting device for allowing a micro flow to flow out to a disk of a control valve.

[2] purpose of design

In general, in the structure of the flow discharge groove of the disc, which is used, if there is a certain period of time, there is a flow supply error. The close contact with the end face of the seat caused abrasion, which caused pupil phenomena, resulting in poor durability, which required frequent repair of the seat. This paper is designed to eliminate such problems.

[3] constitution

Flow outflow around the side of the disc 106 with the disc 106 extending at the lower end of the central axis stamp 105 with the valve body 102 and bonnet 104 coupled. To form a spiral groove 107 for the spiral groove 107 range angle is calculated in the circular state of the lower end combined with the lower 90˚-270˚ degrees while maintaining the angle of 270˚- 360˚ line The present invention relates to a device designed to construct an outflow spiral groove.

[4] effects of the design

The disk for adjusting the flow rate of the valve seat has an advantage that the flow of the fluid flowing in the rotated state hardly occurs with friction with the seat so that abrasion of the seat portion does not occur and thus it can be used semi-permanently.

Description

Disc flow path groove structure device for preventing valve seat wear. {.}

This paper relates to a control valve for discharging ultra-low flow rate, and is used for inserting valve seats such as using a V-shaped groove on the side of the valve disc itself or by processing a U-shaped groove. Has been widely used. However, when the valve is used for a certain period of time as a structure of a flow discharge groove of a disk, a flow rate supply error occurs. This is because the passage force of the fluid is induced in a certain direction, that is, only one direction, during the operation of the valve. The close contact area of the pipe inserted into the abrasion caused the wear phenomenon, which caused the pupil phenomenon, and the durability decreased, which caused frequent breakdown of the seat.

In particular, when the wear property of the seat part becomes large, inconvenience of having to reassemble and use the valve body may be provided.

As a method for eliminating the above-mentioned inconveniences, first, the lifespan of the seat part is provided semipermanently according to what type of structure the flow rate supply groove of the disc is made of. The flow path groove to be processed on the side of the disk in this paper is formed in a spiral shape regardless of the height of the disk.The angle of the spiral point between the groove starting point and the end of the groove at the bottom starting point is 90˚-270˚. Or it can be processed and used by forming the groove in the spiral angle of 270˚- 360˚ line, and further, it should be used by constructing the groove of extension line of 360˚ or more.

This method of construction is not only a method for ensuring that the area of the subspace connected to the seat portion where the fluid is to be supplied through the groove portion is affected by the density of the fluid flow, but also the flow path groove structure As a result, the fluid flow rate does not cause any friction force with the seat portion, and the fluid flows a certain amount of fluid into a certain volume naturally by the space width of the groove and by the induced tension of the spiral. In addition, the shape of the flow path groove of the disk is composed of a U-shaped groove and a V-shaped groove or an I-shaped groove, and the proportion of the width of the upper flow path in the upper flow path and the lower flow out groove in the flow path groove can be changed up and down depending on the selection of the outflow. It may be. That is, the upper groove is to be narrowed to the bottom groove, or conversely, the upper groove to narrow the lower groove is to be given a wide or constant configuration.

1 is a side view of the present invention valve disk.

Figure 2 is an enlarged side view of the present valve valve disc.

Fig. 3 is a cross sectional top view of the present invention valve disc.

Fig. 4 is a side view showing the main part of the spiral groove of the disc of the present invention.

-Code description for main parts of drawing-

102. Body 104. Bonnet 105. Stem

106. Disc 107. Helix groove 108. Inlet groove

The structure of the valve disc as described above is as follows.

Flow rate around the side of the disk 106 with a disk 106 extending at the lower end of the central stem 105 with the valve body 102 and bonnet 104 engaged. Spiral groove 107 is formed for the outflow, but the spiral groove 107 range angle is 90 °-270 ° or 270 °-360 ° when maintaining the angle of the linear line Let the outflow spiral groove be constructed. In addition, as shown in Figure 4, the structure of the outflow spiral groove 107 is given a method of widening or narrowing the groove at the upper side or narrowing or widening the lower side side and the depth of the flow path groove is diagonal from the central axis. It is determined by the specification to be formed to form a structure to form, or to be formed to the same depth uniformly. Unexplained (103) Outlet, (201) Packing, (202) Spring, (109) Sheet.

The disk 106 for adjusting the flow rate of the valve seat 109 configured as described above is semi-permanently because the flow rate of the fluid flowing in the rotated state is hardly generated by friction with the seat 109. Not only can it be used, but the fluid flow path is long, so the flow velocity is always constant. Therefore, cavitation in the fluid is rarely generated, and operation noise is minimized, resulting in a comfortable driving environment. .

Claims (1)

In the disk 106 inserted into the valve body 102 seat 109, the spiral groove 107, which is a flow path of the fluid, is formed around the side wall, and the angle of the spiral groove 107 is equal to the length of the disk 106. Retains the angle of rotation distance from the end to the end regardless of the disc flow-flow groove structure for preventing valve seat wear, characterized by the fact that the spiral groove is formed on the line of 90 ° -360 ° or more. Device.