CN-224229494-U - Sealing enhancement assembly of boron-expanded outer flange

CN224229494UCN 224229494 UCN224229494 UCN 224229494UCN-224229494-U

Abstract

The utility model relates to the technical field of pipeline connecting accessories, in particular to a sealing enhancement assembly of a boron expansion outer flange. The two groups of symmetrical boron-expanded outer flanges are used for connecting an external pipeline to provide a stable connection foundation, the two groups of sealing inner cores are respectively embedded in the outer expanding grooves in the two groups of boron-expanded outer flanges, the plug pipe heads coaxially connected at one ends are matched with the internal diameter of the external pipeline in a plug manner, the tightness and the stability of pipeline connection are guaranteed, the first sealing rings are arranged between the outer walls of the sealing inner cores and the inner walls of the boron-expanded outer flanges and are arranged in the first sealing grooves of the sealing inner cores, the sealing performance between the sealing inner cores and the flanges is effectively enhanced, medium leakage is prevented, the second sealing rings embedded at the contact sides of the two adjacent sealing inner cores are arranged in the second sealing grooves of the sealing inner cores, and the sealing effect is improved.

Inventors

MA XINZHI
Liu Lianyan
ZHANG YANG
LI SIYANG
GUO WENKE

Assignees

广东北田智能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250530

Claims (7)

1. The sealing enhancement assembly of the boron expansion outer flange is characterized by comprising two groups of boron expansion outer flanges (10) and two groups of sealing inner cores (20) which are used for connecting an external pipeline (50) and are symmetrically arranged, wherein the two groups of sealing inner cores (20) are respectively embedded in the two groups of boron expansion outer flanges (10), a first sealing ring (40) is arranged between the inner walls of the boron expansion outer flanges (10) on the outer walls of the sealing inner cores (20), and a second sealing ring (30) is embedded on the contact sides of the two adjacent groups of sealing inner cores (20); An outer expanding pipe head (51) for installing an external pipeline (50) and an outer expanding groove (12) for sealing the inner core (20) are formed in the boron outer expanding flange plate (10); The sealing inner core (20) is embedded in the outer expanding groove (12), one end part of the sealing inner core is coaxially connected with a plug tube head (21) which is matched with the inner diameter of the external pipeline (50) in a plug manner, a first sealing groove (22) for installing a first sealing ring (40) is formed in the outer wall of the sealing inner core (20), and a second sealing groove (23) for installing a second sealing ring (30) is formed in the inner wall of one end of the sealing inner core (20) far away from the plug tube head (21); the width of the second sealing ring (30) is twice the width of the second sealing groove (23).
2. The sealing enhancement assembly of the boron-expanded outer flange according to claim 1, wherein flange connection holes (11) are formed at four vertex angles of the boron-expanded outer flange (10).
3. The seal reinforcing assembly of a boron-expanded outer flange as set forth in claim 2, wherein two sets of said boron-expanded outer flanges (10) are secured by connecting bolts (60) through flange attachment holes (11) and by mating nuts (61).
4. The seal enhancement assembly of a boron-expanded outer flange as set forth in claim 1, wherein said second seal ring (30) comprises a metal outer ring sleeve (31) and a rubber inner ring (32).
5. The seal reinforcing assembly of a boron-expanded outer flange as set forth in claim 4, wherein said metal outer collar (31) is a stainless steel outer collar and has a thickness of 1-3mm.
6. The seal enhancement assembly of the boron-expanded outer flange as set forth in claim 1, wherein the first seal ring (40) is a circular ring seal ring, and the first seal ring (40) is sized to fit the first seal groove (22) in a snap fit manner.
7. The sealing reinforcing assembly of the boron-expanded outer flange according to claim 1, wherein the second sealing ring (30) is matched with the cross section size of the second sealing groove (23) in a plugging manner.

Description

Sealing enhancement assembly of boron-expanded outer flange Technical Field The utility model relates to the technical field of pipeline connecting fittings, in particular to a sealing reinforcing component of a boron-expanded outer flange. Background The boron-expanded outer flange is used as a connecting component commonly used in the fields of nuclear industry, chemical industry, petroleum and the like, and the sealing performance of the boron-expanded outer flange is directly related to the safety and stability of the whole system. With the continuous development of industrial technology, the sealing requirement on the boron-expanded outer flange is also higher and higher. The traditional boron-expanded external flange sealing mode often depends on a single sealing ring or gasket, and when the design faces high-pressure medium, the sealing ring or gasket is easy to deform or damage due to overlarge pressure, so that the sealing failure is caused. In addition, the material performance of the sealing ring can be gradually reduced after long-term exposure to corrosive media, and the sealing effect is further affected. Disclosure of utility model The utility model aims to provide a sealing enhancement assembly of a boron-expanded outer flange, which aims to solve the problem that the sealing performance of the existing boron-expanded outer flange is poor in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: The sealing enhancement assembly of the boron-expanded outer flange comprises two groups of boron-expanded outer flanges and two groups of sealing inner cores, wherein the two groups of boron-expanded outer flanges are used for connecting an external pipeline and are symmetrically arranged, the two groups of sealing inner cores are respectively embedded in the two groups of boron-expanded outer flanges, a first sealing ring is arranged between the inner walls of the boron-expanded outer flanges on the outer walls of the sealing inner cores, and second sealing rings are embedded on the contact sides of the two adjacent groups of sealing inner cores; An outer expanding pipe head for installing an external pipeline and an outer expanding groove for sealing an inner core are formed in the boron outer expanding flange plate; the sealing inner core is embedded in the outer expanding groove, one end part of the sealing inner core is coaxially connected with a plug pipe head which is matched with the inner diameter of the external pipeline in a plug-in mode, a first sealing groove for installing a first sealing ring is formed in the outer wall of the sealing inner core, and a second sealing groove for installing a second sealing ring is formed in the inner wall of one end, far away from the plug pipe head, of the sealing inner core; the width of the second sealing ring is twice that of the second sealing groove. Preferably, flange connection holes are formed in four vertex angles of the boron-expanded outer flange plate. Preferably, the two groups of the boron-expanded outer flanges penetrate through the flange connecting holes through connecting bolts and are fixedly connected through matched nuts. Preferably, the second sealing ring comprises a metal outer ring sleeve and a phase rubber inner ring. Preferably, the metal outer ring sleeve is a stainless steel outer ring sleeve, and the thickness of the metal outer ring sleeve is 1-3mm. Preferably, the first sealing ring is a ring sealing ring, and the first sealing ring is matched with the first sealing groove in a clamping fit manner. Preferably, the second sealing ring is matched with the second sealing groove in cross section in size and is in plug-in fit with the second sealing groove. Compared with the prior art, the utility model has the beneficial effects that: 1. In the sealing enhancement assembly of the boron-expanded outer flange, two groups of symmetrical boron-expanded outer flanges are used for connecting an external pipeline to provide a stable connection basis, two groups of sealing inner cores are respectively embedded in the outer expansion grooves in the two groups of boron-expanded outer flanges, and an inserting pipe head coaxially connected with one end is matched with the internal diameter of the external pipeline in an matching and inserting mode to ensure the tightness and stability of pipeline connection, a first sealing ring is arranged between the outer wall of the sealing inner core and the inner wall of the boron-expanded outer flange and is installed in the first sealing groove of the sealing inner core, the sealing performance between the sealing inner core and the flange is effectively enhanced, medium leakage is prevented, a second sealing ring is embedded on the contact side of the two adjacent sealing inner cores and is installed in the second sealing groove of the sealing inner core, the width of the second sealing ring is twice the width of