Pipe welding structure

Patent metadata

Field	Value
Publication number	US-12092242-B2
Application number	US-202217687028-A
Country	US
Kind code	B2
Filing date	Mar 4, 2022
Priority date	Apr 5, 2021
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

A pipe welding structure includes: a channel plate that includes a fluid channel; through-hole plates stacked on the channel plate, each of the through-hole plates having through holes that communicate with each other and forming a combined through hole; and a pipe inserted into the combined through hole and welded to one of the through-hole plates disposed farthest from the channel plate, the pipe internally including a pipe channel that connects to the fluid channel.

First claim

What is claimed is:

1. A pipe welding structure comprising:
a channel plate that includes a fluid channel;
through-hole plates stacked on the channel plate, wherein the through-hole plates have through holes that communicate with each other and form a combined through hole; and
a pipe inserted into the combined through hole and welded to one of the through-hole plates disposed farthest from the channel plate, wherein the pipe internally includes a pipe channel that connects to the fluid channel, wherein
each of the through-hole plates includes at least one groove surrounding each of the through-holes with a non-through-hole portion intervened between the groove and each of the through-holes.

2. The pipe welding structure of claim 1 , further comprising:
a relay channel plate disposed between the channel plate and the through-hole plates, wherein
the relay channel plate includes:
a relay channel that provides fluid communication between the fluid channel and pipe channel, and
a groove around a portion of the relay channel plate corresponding to the non-through-hole portion.

3. The pipe welding structure of claim 2 , wherein
each of the through-hole plates includes:
through grooves surrounding each of the through-holes with the non-through-hole portion intervened between the through grooves and each of the through-holes; and
a connecting portion between adjacent ones of the through grooves in a circumferential direction of the through-holes.

4. The pipe welding structure of claim 3 , wherein positions of a plurality of connecting portions including the connecting portion are offset from one another in the circumferential direction.

5. A method of producing the pipe welding structure of claim 2 , comprising:
stacking the through-hole plates on the channel plate;
inserting the pipe into the combined through hole; and
welding the pipe to the one of the through-hole plates disposed farthest from the channel plate.

6. The method of producing the pipe welding structure of claim 5 , further comprising
forming each of the through holes in each of the through-hole plates by etching.

7. A method of producing the pipe welding structure of claim 2 , comprising
forming each of the through holes and the groove simultaneously in each of the through-hole plates by etching.

8. The pipe welding structure of claim 1 , wherein
each of the through-hole plates includes:
through grooves surrounding each of the through-holes with the non-through-hole portion intervened between the through grooves and each of the through-holes; and
a connecting portion between adjacent ones of the through grooves in a circumferential direction of the through-holes.

9. The pipe welding structure of claim 8 , wherein positions of a plurality of connecting portions including the connecting portion are offset from one another in the circumferential direction.

10. A method of producing the pipe welding structure of claim 8 , comprising
forming each of the through holes and the groove simultaneously in each of the through-hole plates by etching.

11. A method of producing the pipe welding structure of claim 9 , comprising
forming each of the through holes and the groove simultaneously in each of the through-hole plates by etching.

12. A method of producing the pipe welding structure of claim 8 , comprising
forming each of the through holes, the through grooves, and the connecting portion simultaneously in each of the through-hole plates by etching while leaving the connecting portion unetched.

13. A method of producing the pipe welding structure of claim 9 , comprising
forming each of the through holes, the through grooves, and the connecting portion simultaneously in each of the through-hole plates by etching while leaving the connecting portion unetched.

14. A method of producing the pipe welding structure of claim 1 , comprising:
stacking the through-hole plates on the channel plate;
inserting the pipe into the combined through hole; and
welding the pipe to the one of the through-hole plates disposed farthest from the channel plate.

15. The method of producing the pipe welding structure of claim 14 , further comprising
forming each of the through holes in each of the through-hole plates by etching.

Assignees

• Ckd Corp

Inventors

• Nitta Shinichi
• Hashizume Junya
• Ohsaki Mitsuyoshi

Classifications

• C23F1/02

  Local etching · CPC title

• B23K2101/10

  Pipe-lines · CPC title

• B01F35/165

  Making mixers or parts thereof · CPC title

• B01F33/3012

  Interdigital streams, e.g. lamellae · CPC title

• B01F25/431971

  Mounted on the wall · CPC title