Flange connection assembly and the assembly / disassembly method thereof, piping connection device and chiller unit

Patent metadata

Field	Value
Publication number	US-11262007-B2
Application number	US-201716306391-A
Country	US
Kind code	B2
Filing date	May 31, 2017
Priority date	Jun 3, 2016
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A flanged connecting assembly, which comprises: a first flange ( 210 ); a second flange ( 220 ) with a diameter greater than the diameter of the first flange; and a third flange ( 230 ), provided with a first portion ( 231 ) and a second portion ( 232 ) forming a step; wherein the first portion ( 231 ) is fitted to the first flange ( 210 ) through a first sealing element ( 310 ), and the second portion ( 232 ) is fitted to the second flange ( 220 ) through a second sealing element ( 320 ); and the first flange ( 210 ) and the second flange ( 220 ) are spaced from each other by a first distance. In this way, a gap formed under the fit of the three flanges can allow a used sealing element to be taken out vie the gap and/or a new sealing element to be assembled in via the gap.

First claim

The invention claimed is:

1. A flanged connecting assembly, characterized by comprising:
a first flange;
a second flange with a diameter greater than the diameter of the first flange; and
a third flange, provided with a first portion and a second portion forming a step;
wherein the first portion is fitted to the first flange through a first sealing element, and the second portion is fitted to the second flange through a second sealing element;
and the first flange and the second flange are spaced from each other by a first distance;
wherein the first flange is positioned between the third flange and the second flange;
characterized in that the first portion is fitted to the first flange through fastening by blind hole bolts and/or the second portion is fitted to the second flange through fastening by through hole bolts.

2. The flanged connecting assembly according to claim 1 , characterized in that the first sealing element and/or the second sealing element is a gasket.

3. The flanged connecting assembly according to claim 1 , characterized in that the first sealing element and/or the second sealing element is an O-shaped ring.

4. The flanged connecting assembly according to claim 1 , characterized in that the thicknesses of the first sealing element and/or the second sealing element is less than or equal to the first distance.

5. The flanged connecting assembly according to claim 1 , characterized in that the depth of the step is greater than the thickness of the first flange.

6. The flanged connecting assembly according to claim 1 , wherein the second flange has an outer diameter greater than an outer diameter of the first flange.

7. A pipeline connector, characterized by comprising:
a first pipeline, provided with a first flange at one end;
a second pipeline, provided with a second flange at one end, the diameter of the second flange being greater than the diameter of the first flange; and
a third flange, provided with a first portion and a second portion forming a step;
wherein the first portion is fitted to the first flange through a first sealing element, and the second portion is fitted to the second flange through a second sealing element;
and the first flange and the second flange are spaced from each other by a first distance;
wherein the first flange is positioned between the third flange and the second flange;
characterized in that the first portion is fitted to the first flange through fastening by blind hole bolts and/or the second portion is fitted to the second flange through fastening by through hole bolts.

8. The pipeline connector according to claim 7 , characterized in that the first flange is welded around the first pipeline; and/or the second flange is welded around the second pipeline.

9. The pipeline connector according to claim 7 , characterized in that the first sealing element and/or the second sealing element is a gasket.

10. The pipeline connector according to claim 7 , characterized in that the first sealing element and/or the second sealing element is an O-shaped ring.

11. The pipeline connector according to claim 7 , characterized in that the thicknesses of the first sealing element and/or the second sealing element is less than or equal to the first distance.

12. The pipeline connector according to claim 7 , characterized in that the first sealing element is made of an elastic material, and the first sealing element has a flexibility of telescoping between a diameter value of the first flange and a diameter value of the first pipeline.

13. The pipeline connector according to claim 7 , characterized in that the depth of the step is greater than the thickness of the first flange.

14. A cooler unit, characterized by comprising:
a flanged connecting assembly of claim 1 ;
a compressor outlet nozzle, provided with the first flange at one end;
a condenser inlet nozzle, provided with the second flange at one end.

15. The cooler unit according to claim 14 , characterized in that the first flange is welded around the compressor outlet nozzle; and/or the second flange is welded around the condenser inlet nozzle.

16. The cooler unit according to claim 14 , characterized in that the first sealing element and/or the second sealing element is a gasket.

17. The cooler unit according to claim 14 , characterized in that the first sealing element and/or the second sealing element is an O-shaped ring.

18. The cooler unit according to claim 14 , characterized in that the thicknesses of the first sealing element and/or the second sealing element is less than or equal to the first distance.

19. The cooler unit according to claim 14 , characterized in that the first sealing element is made of an elastic material, and the first sealing element has a flexibility of telescoping between a diameter value of the first flange and a diameter value of the compressor outlet nozzle.

20. The cooler unit according to claim 14 , characterized in that the depth of the step is greater than the thickness of the first flange.

21. A method for assembling and disassembling the flanged connecting assembly according to claim 1 , characterized by comprising:
an assembly step: the step sequentially surrounds the first sealing element and the first flange along an axial direction, and the second portion is aligned with the second sealing element and the second flange along the axial direction; the first portion, the first sealing element and the first flange are fastened, and the second portion, the second sealing element and the second flange are fastened; and/or
a disassembly step: the fastening of the second portion, the second sealing element and the second flange is released, and the fastening of the first portion, the first sealing element and the first flange is released; and the third flange is moved along the axial direction, so that the second sealing element and/or the second flange can be disassembled and the first sealing element and/or the first flange can be disassembled.

22. The method for assembling and disassembling the flanged connecting assembly according to claim 21 , characterized by comprising:
a replacement and disassembly step: the fastening of the second portion, the used second sealing element and the second flange is released, and the fastening of the first portion, the used first sealing element and the first flange is released; and the third flange is moved along the axial direction, so that the used second sealing element and the used first sealing element can be disassembled; and
a replacement and assembly step: the step sequentially surrounds a new first sealing element and the first flange along the axial direction, and the second portion is aligned with a new second sealing element and the second flange along the axial direction; the first portion, the first sealing element and the first flange are fastened, and the second portion, the second sealing element and the second flange are fastened.

23. The method for assembling and disassembling the flanged connecting assembly according to claim 21 , characterized in that the used second sealing element and the used first sealing element are disassembled via a first distance of spacing between the first flange and the second flange; and/or the new second sealing element and the new first sealing element are assembled in via the first distance of spacing between the first flange and the second flange.

Assignees

• Carrier Corp

Inventors

• Dong Keli
• Stark Michael A

Classifications

• F16L23/18 Primary

  the sealing means being rings · CPC title

• F16L23/22

  made exclusively of a material other than metal · CPC title

• F16L23/032 Primary

  characterised by the shape or composition of the flanges · CPC title

• F16L23/026

  by welding · CPC title