KR-20260062301-A - Trim for with 3D flow path

Abstract

The present invention is a trim having a 3D flow path formed therein, more specifically comprising a trim body and a plurality of flow paths provided in the trim body, wherein each of the plurality of flow paths is formed by being bent in an upward direction or a downward direction.

Inventors

• 김진원
• 박호일
• 김상민
• 이윤규

Assignees

• 피케이밸브앤엔지니어링 주식회사

Dates

Publication Date

20260507

Application Date

20241029

Claims (5)

1. Trim body; and A plurality of fluid passages provided in the above trim body; including, A trim having a 3D flow path formed, characterized in that the plurality of flow paths are each formed by being bent in an upward or downward direction.
2. In paragraph 1, The above trim body has a hollow formed inside, and A trim formed with a 3D flow path, characterized in that the ends of the plurality of flow paths are each connected to the hollow.
3. In paragraph 1, The above plurality of euros are, A trim having a 3D flow path formed therein, characterized in that the flow path ends provided adjacent to the flow path ends are arranged alternately in the vertical direction along a plurality of virtual circles formed along the inner surface of the trim body, wherein the flow path ends are arranged in an alternating manner.
4. In paragraph 1, The above plurality of euros are, A trim formed with a 3D Euro, characterized by being formed to have a square cross-section.
5. In paragraph 1, The above plurality of euros are, A trim formed with a 3D Euro, characterized by being formed to have a rhombus-shaped cross-section.

Description

Trim for with 3D flow path The present invention relates to a trim having a 3D flow path formed therein, and more specifically, to a trim having a 3D flow path formed therein that can control the outflow rate consistently and accurately by reducing the differential pressure when the valve is opened as a plurality of folded flow paths are formed. Referring to FIG. 1, the valve (10) is configured such that the flow path of the trim (14) is opened or closed depending on the raising or lowering of the stem (11). When the stem (11) rises, fluid is introduced from the inlet (12), passes through the flow path of the trim (14), passes through the hollow inside the trim (14), and is discharged through the outlet (13). For example, Korean Registered Patent Publication No. 10-2545454 (June 21, 2023) discloses a cylinder-type separable multi-stage trim stack unit for valves. However, in the conventional case as described above, since the flow path formed in the trim is arranged in a straight line, a differential pressure occurs due to the lifting and lowering of the stem (11), and there was a problem that the flow rate of the fluid flowing out was not constant depending on the degree of opening (opening) of the valve. Figure 1 (a) is a cross-sectional view showing the configuration of a conventional valve, and Figure 1 (b) is a side view. FIG. 2(a) is a diagram showing the configuration of a trim having a 3D flow path formed according to an embodiment of the present invention, and FIG. 2(b) is a perspective view. FIG. 3 is a diagram showing the configuration of a 3D flow path formed in a trim according to an embodiment of the present invention. FIGS. 4 and 5 are drawings showing the first to sixth channels of a trim having a 3D channel formed according to an embodiment of the present invention. FIG. 6 is a diagram showing the arrangement of the flow paths of a trim in which a 3D flow path is formed according to an embodiment of the present invention. Figure 7 (a) is a diagram showing the arrangement of the conventional trim flow path, and Figure 7 (b) is a diagram showing the flow rate according to the conventional valve opening. FIGS. 8 and 9 are drawings showing the flow coefficient according to the valve opening of a trim in which a 3D flow path is formed according to an embodiment of the present invention. The terms used in this specification will be briefly explained, and the invention will be described in detail. The terms used in this invention have been selected based on currently widely used general terms while considering their functions within the invention; however, these terms may vary depending on the intent of those skilled in the art, case law, the emergence of new technologies, etc. Therefore, the terms used in this invention should be defined not merely by their names, but based on their meanings and the overall context of the invention. When a part of a specification is described as “comprising” a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Specific details regarding the problem to be solved by the present invention, the means for solving the problem, and the effects of the invention are included in the embodiments and drawings described below. The advantages and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. Hereinafter, the present invention will be described in more detail with reference to the attached drawings. Referring to FIGS. 2 and 3, a trim having a 3D flow path formed therein according to a preferred embodiment of the present invention comprises a trim body (100) and a plurality of flow paths (200) provided in the trim body (100). First, the trim body (100) is provided. The trim body (100) is provided at a portion that is bent to switch fluid flow and serves to control the flow of fluid and regulate the amount of flow. Additionally, the trim body (100) is provided in a cylindrical shape and has a hollow formed inside, and the ends of the plurality of fluid passages (200) are each connected to the hollow, so that the fluid introduced through the plurality of fluid passages (200) flows along the hollow. For example, referring to FIG. 1, the hollow of the trim body (100) and the plurality of fluid passages (200) are opened or closed depending on the lifting and lowering of the stem inserted into the hollow of the trim body (100). That is, when the stem rises, fluid is introduced from the inlet and flows through the plurality of fluid passages (200) to the outlet. Next,