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KR-102963919-B1 - COUPLER FOR FLUID TRANSFER

KR102963919B1KR 102963919 B1KR102963919 B1KR 102963919B1KR-102963919-B1

Abstract

A fluid transfer coupler according to one embodiment of the present invention comprises a female coupler having a housing and a male coupler inserted into and connected to a fastening portion formed inside the housing, wherein cleaning water is sprayed into the fastening portion, an outflow hole through which the cleaning water is discharged is formed in the housing, and a guide surface may be formed on the inner surface of the housing along the central axis direction toward the outflow hole.

Inventors

  • 고병도
  • 박재영
  • 최경원
  • 고준영

Assignees

  • (주)에스티아이

Dates

Publication Date
20260512
Application Date
20240702

Claims (20)

  1. Female coupler with housing; and It includes a male coupler that is inserted into and fastened to a fastening part formed inside the above housing, and Cleaning water is sprayed into the above-mentioned fastening part, and an outlet hole through which the cleaning water flows out is formed in the housing, and a guide surface is formed on the inner surface of the housing along the central axis direction toward the outlet hole. Inside the above housing, a valve body connected to the male coupler is provided, and at the rear end of the valve body, an elastic body is disposed that provides elastic force in the direction in which the valve body is connected to the male coupler. The above elastic body is configured to have a plurality of layers along the central axis of the housing, and a fluid transfer coupler in which a plurality of through holes having elliptical cross-sections are formed in one layer.
  2. In paragraph 1, A fluid transfer coupler in which the guide surface is formed to taper so as to narrow in width toward the outflow hole.
  3. In paragraph 1, The above guide surface is a fluid transfer coupler formed at an angle along the central axis direction toward the above outflow hole.
  4. In paragraph 1, The above guide surface is a fluid transfer coupler formed as a curved surface along the central axis direction toward the above outflow hole.
  5. In paragraph 1, The above guide surface is a fluid transfer coupler formed at the front and rear, respectively, along the central axis direction of the housing, centered on the outflow hole.
  6. In paragraph 1, The above guide surface is, A first guide surface formed forward along the central axis direction of the housing, centered on the outflow hole; and A fluid transfer coupler comprising a second guide surface formed at the rear, centered on the outflow hole, along the central axis direction of the housing.
  7. In paragraph 6, A fluid transfer coupler in which the length in the central axis direction of the first guide surface is longer than the length in the central axis direction of the second guide surface.
  8. In paragraph 1, A fluid transfer coupler having a tapered surface formed on the inner surface of the housing in contact with the outer surface of the male coupler.
  9. In paragraph 1, A fluid transfer coupler in which an injection hole for spraying cleaning water is formed in the housing, and a gas-liquid mixer for spraying cleaning water is installed in the housing.
  10. In Paragraph 9, The above-mentioned outflow hole is a fluid transfer coupler formed in the housing corresponding to the opposite side of the above-mentioned injection hole.
  11. delete
  12. In paragraph 1, The above-mentioned elastic body is a fluid transfer coupler made of fluoropolymer material.
  13. In Paragraph 12, The above elastomer is a fluid transfer coupler made of PFA, PCTFE, or PTFE material.
  14. delete
  15. In paragraph 1, A fluid transfer coupler having three or four through holes arranged in one layer of the above elastic body.
  16. In paragraph 1, A fluid transfer coupler having a shear flange at the end of the housing and a male coupler connection portion into which a male coupler is inserted in the shear flange.
  17. In Paragraph 16, The above-mentioned male coupler connection is a fluid transfer coupler made of electrically conductive unsaturated polyester resin (UPE).
  18. In Paragraph 17, A fluid transfer coupler in which a fixing bolt made of stainless steel (STS) passes through the above-mentioned male coupler connection part and is fastened to the above-mentioned shear flange.
  19. Female coupler with housing; and It includes a male coupler that is inserted into and fastened to a fastening part formed inside the above housing, and Cleaning water is sprayed into the above-mentioned fastening part, and an outlet hole through which the cleaning water flows out is formed in the housing, and a guide surface is formed on the inner surface of the housing along the central axis direction toward the outlet hole. A tapered surface is formed tapered on the inner surface of the housing at the portion in contact with the outer surface of the male coupler, and Inside the above housing, a valve body connected to the male coupler is provided, and at the rear end of the valve body, an elastic body is disposed that provides elastic force in the direction in which the valve body is connected to the male coupler. The above elastic body is configured to have a plurality of layers along the central axis of the housing, and a fluid transfer coupler in which a plurality of through holes having elliptical cross-sections are formed in one layer.
  20. In Paragraph 19, The above-mentioned elastic body is a fluid transfer coupler made of fluoropolymer material.

Description

Coupler for Fluid Transfer The present invention relates to a coupler for fluid transfer, and more specifically, to a coupler for fluid transfer having a structure to prevent residual liquid from remaining after cleaning of the connection portion where a male coupler and a female coupler are connected, thereby preventing complete drying. In transporting and recovering various types of chemicals used in semiconductor or LCD processes, a hose for supply and recovery is connected between a tank truck and a storage tank to enable stable transfer of large volumes; through this hose, chemicals are supplied from the tank truck to the storage tank or recovered from the storage tank to the tank truck. At this time, a male coupler is installed on the tank truck hose and a female coupler is installed on the storage tank hose, and then the male and female couplers are connected to form a chemical transfer pipeline. These fluid transfer couplers require cleaning the connection point between the female and male couplers to prevent contaminants from mixing with the transferred chemicals. Therefore, conventional fluid transfer couplers are configured to clean the connection point where the female and male couplers are joined by forming various types of injection holes in the female coupler and spraying cleaning water through these holes. However, there was a problem where it did not dry completely after cleaning due to the presence of tiny gaps in the connection part where the cleaning water is sprayed. FIG. 1 is a perspective view illustrating a coupler for fluid transfer according to one embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating the connected state of a fluid transfer coupler according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating the unfastened state of a fluid transfer coupler according to one embodiment of the present invention. FIG. 4 is an enlarged view of the fastening portion of a fluid transfer coupler according to one embodiment of the present invention. FIG. 5 is a cross-sectional view illustrating the unfastened state of a fluid transfer coupler according to another embodiment of the present invention. FIG. 6 is a perspective view illustrating one embodiment of an elastic body. FIG. 7 is a front view illustrating one embodiment of an elastic body. FIG. 8 is a perspective view illustrating another embodiment of an elastic body. FIG. 9 is a front view illustrating another embodiment of an elastic body. FIG. 10 is a drawing showing the mail coupler connection part from the front. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. In describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the present invention. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Furthermore, throughout the specification, when the term "connected" is used, it does not mean only that two or more components are directly connected, but may also mean that two or more components are indirectly connected through other components, that they are connected not only physically but also electrically, or that they are a single unit although referred to by different names depending on their location or function. Furthermore, when described as being formed or placed on the “top or bottom” of each component, “top or bottom” includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as “top or bottom,” it may include the meaning of a downward direction as well as an upward direction relative to a single component. Hereinafter, an embodiment of a fluid transfer coup