Sealing enhancing assembly of boron expansion outer flange

Abstract

The utility model relates to the technical field of pipeline connecting fittings, in particular to a sealing reinforcing assembly of a boron expansion outer flange, which comprises two groups of boron expansion outer flange plates and two groups of sealing inner cores, the two sets of symmetrical boron expansion outer flange plates are used for being connected with an external pipeline, and a stable connection foundation is provided; the two groups of sealing inner cores are respectively embedded in expansion outer grooves in the two groups of boron expansion outer flange plates, and an insertion pipe head of which one end part is coaxially connected is matched with the inner diameter size of an external pipeline and is in insertion fit with the external pipeline, so that the tightness and the stability of pipeline connection are ensured; a first sealing ring arranged between the outer wall of the sealing inner core and the inner wall of the boron expansion outer flange plate is mounted in a first sealing groove of the sealing inner core, so that the sealing performance between the sealing inner core and the flange plate is effectively enhanced, and medium leakage is prevented; and the second sealing rings embedded in the contact sides of the two adjacent groups of sealing inner cores are mounted in the second sealing grooves of the sealing inner cores, so that the sealing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connecting accessory technical field, concretely is the sealing enhancement subassembly of boron expansion outer flange. BACKGROUND

[0002] As the connecting component commonly used in the field of nuclear industry, chemical industry and petroleum etc., the sealing performance of boron expansion outer flange is directly related to the safety and stability of the whole system. With the continuous development of industrial technology, the sealing requirement of boron expansion outer flange is also higher and higher. The traditional sealing mode of boron expansion outer flange often depends on single sealing ring or gasket, and the sealing ring or gasket is easy to deform or damage due to excessive pressure when facing high-pressure medium, thereby leading to sealing failure. In addition, the material performance of sealing ring will gradually decrease due to long-term exposure in corrosive medium, further affecting the sealing effect. SUMMARY

[0003] The utility model discloses a sealing enhancement subassembly of boron expansion outer flange to solve the problem of poor sealing of the existing boron expansion outer flange in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] The sealing enhancement subassembly of boron expansion outer flange includes two groups of boron expansion outer flange plates for connecting external pipeline and symmetrically arranged and two groups of sealing inner cores, two groups of sealing inner cores are respectively embedded in two groups of boron expansion outer flange plates, first sealing ring is arranged between the outer wall of sealing inner core and the inner wall of boron expansion outer flange plate, and second sealing ring is embedded on the contact side of two groups of adjacent sealing inner cores.

[0006] The boron expansion outer flange plate is provided with expansion pipe head for installing external pipeline and expansion groove of sealing inner core.

[0007] The sealing inner core is embedded in the expansion groove and has plug-in pipe head coaxially connected at one end, the plug-in pipe head is matched with the inner diameter size of external pipeline, first sealing groove for installing first sealing ring is formed on the outer wall of sealing inner core, and second sealing groove for installing second sealing ring is formed on the inner wall of the end of sealing inner core away from plug-in pipe head.

[0008] The width of second sealing ring is twice the width of second sealing groove.

[0009] As preferred, flange connecting holes are formed at four top corners of boron expansion outer flange plate.

[0010] As preferred, two groups of boron expansion outer flange plates are connected and fixed through flange connecting holes by connecting bolt and matched nut.

[0011] Preferably, the second sealing ring comprises a metal outer ring and a rubber inner ring.

[0012] Preferably, the metal outer ring is a stainless steel outer ring with a thickness of 1-3mm.

[0013] Preferably, the first sealing ring is a circular ring type sealing ring, and the first sealing ring is matched with the size of the first sealing groove and is connected with the first sealing groove.

[0014] Preferably, the second sealing ring is matched with the size of the second sealing groove and is inserted into the second sealing groove.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1. In the sealing enhancement assembly of the boron expanded flange, two groups of symmetric boron expanded flanges are arranged for connecting external pipelines and providing a stable connection basis; two groups of sealing inner cores are respectively embedded in the expanded grooves in the two groups of boron expanded flanges, and the plug-in pipe head coaxially connected at one end is matched with the inner diameter of the external pipeline and is inserted and connected, so that the tightness and stability of the pipeline connection are ensured; the first sealing ring arranged between the outer wall of the sealing inner core and the inner wall of the boron expanded flange is installed in the first sealing groove of the sealing inner core, so that the sealing performance between the sealing inner core and the flange is effectively enhanced, and medium leakage is prevented; the second sealing ring embedded in the contact side of the two groups of sealing inner cores is installed in the second sealing groove of the sealing inner core, and the width of the second sealing ring is twice the width of the second sealing groove, so that the sealing effect between the two groups of sealing inner cores is further enhanced, the sealing performance of the boron expanded flange is improved as a whole, reliable operation under various working conditions is ensured, and medium leakage and other faults caused by sealing problems are avoided.

[0017] 2. In the sealing enhancement assembly of the boron expanded flange, the flange connection holes are arranged at the four top corners of the boron expanded flange, and the connecting bolts pass through the flange connection holes and are connected and fixed to the two groups of boron expanded flanges through the matched nuts, so that the flanges can be firmly connected, the structural stability of the whole assembly is ensured, installation and disassembly are facilitated, and maintenance and overhaul are facilitated.

[0018] 3. In the sealing enhancement assembly of the boron expanded flange, the second sealing ring comprises a metal outer ring and a rubber inner ring, the metal outer ring is a stainless steel outer ring with a thickness of 1-3mm, so that the second sealing ring has good elasticity, the metal outer ring can provide sufficient strength and corrosion resistance, the reliability and durability of the sealing are enhanced, the sealing requirements under different working conditions are met, and medium leakage is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to further explain the embodiments of the present application, but do not constitute a limitation on the present application.

[0020] Figure 1 It is a decomposition structure schematic view of the present application;

[0021] Figure 2 It is a structure schematic view of the present application;

[0022] Figure 3 It is a cross-section structure schematic view of the second sealing ring of the present application;

[0023] Figure 4 It is a cross-section structure schematic view when the connecting pipeline of the present application;

[0024] 10, boron expanding flange; 11, flange connecting hole; 12, expanding groove;

[0025] 20, sealing inner core; 21, plug-in pipe head; 22, first sealing groove; 23, second sealing groove;

[0026] 30, second sealing ring; 31, metal outer ring sleeve; 32, rubber inner ring;

[0027] 40, first sealing ring;

[0028] 50, external connecting pipeline; 51, expanding pipe head;

[0029] 60, connecting bolt; 61, nut. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be understood that the orientations or position relationships indicated by the terms "center", "vertical", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] The sealing enhancement assembly of the boron expanded outer flange, as shown, comprises two groups of boron expanded outer flanges 10 for connecting the external pipeline 50 and symmetrically arranged, and two groups of sealing inner cores 20 respectively embedded in the two groups of boron expanded outer flanges 10, a first sealing ring 40 arranged between the outer wall of the sealing inner core 20 and the inner wall of the boron expanded outer flange 10, and a second sealing ring 30 embedded on the contact side of the two groups of adjacent sealing inner cores 20. Figures 1-3 The boron expanded outer flange 10 is provided with an expanded pipe head 51 for installing the external pipeline 50 and an expanded groove 12 for installing the sealing inner core 20. The sealing inner core 20 is embedded in the expanded groove 12 and coaxially connected at one end with a plug-in pipe head 21 matched with the inner diameter of the external pipeline 50. The outer wall of the sealing inner core 20 is provided with a first sealing groove 22 for installing the first sealing ring 40, and the inner wall of the end of the sealing inner core 20 away from the plug-in pipe head 21 is provided with a second sealing groove 23 for installing the second sealing ring 30. The width of the second sealing ring 30 is twice the width of the second sealing groove 23. The two groups of symmetric boron expanded outer flanges 10 are used to connect the external pipeline 50 and provide a stable connection basis. The two groups of sealing inner cores 20 are respectively embedded in the expanded grooves 12 of the two groups of boron expanded outer flanges 10, and the plug-in pipe heads 21 coaxially connected at one end are matched with the inner diameter of the external pipeline 50 and are in plug-in cooperation, which ensures the tightness and stability of the pipeline connection. The first sealing ring 40 arranged between the outer wall of the sealing inner core 20 and the inner wall of the boron expanded outer flange 10 is installed in the first sealing groove 22 of the sealing inner core 20, which effectively enhances the sealing performance between the sealing inner core and the flange and prevents medium leakage. The second sealing ring 30 embedded on the contact side of the two groups of adjacent sealing inner cores 20 is installed in the second sealing groove 23 of the sealing inner core 20, and the width of the second sealing ring 30 is twice the width of the second sealing groove 23, which further enhances the sealing effect between the two groups of sealing inner cores, thereby improving the overall sealing performance of the boron expanded outer flange and ensuring reliable operation under various working conditions, avoiding failures such as medium leakage caused by sealing problems.

[0033] Further, the flange connection holes 11 are provided at the four corners of the boron expanded outer flange 10, and the two groups of boron expanded outer flanges 10 are connected and fixed by the connecting bolts 60 passing through the flange connection holes 11 and the matching nuts 61. The flange connection holes 11 provided at the four corners of the boron expanded outer flange 10 and the connecting bolts 60 passing through the flange connection holes 11 and the matching nuts 6l connecting and fixing the two groups of boron expanded outer flanges 10 enable the flanges to be firmly connected, ensure the structural stability of the entire assembly, facilitate installation and disassembly, and facilitate maintenance and overhaul.

[0034] Specifically, the second sealing ring 30 comprises a metal outer ring 31 and a rubber inner ring 32. The metal outer ring 31 is made of stainless steel and has a thickness of 1-3 mm. The second sealing ring 30 has good elasticity, and the metal outer ring 31 provides sufficient strength and corrosion resistance, thereby enhancing the reliability and durability of the sealing, adapting to different sealing requirements under different working conditions, and effectively preventing medium leakage.

[0035] The first sealing ring 40 is a circular ring type sealing ring, and the size of the first sealing ring 40 is matched with the size of the first sealing groove 22, and the two are connected and matched. The first sealing ring 40 can be tightly installed in the first sealing groove 22, ensuring the sealing effect, preventing medium leakage between the sealing inner core 20 and the boron expansion outer flange 10, and improving the sealing performance and service life of the assembly.

[0036] In addition, the second sealing ring 30 is matched with the cross-sectional size of the second sealing groove 23, and the two are connected and matched. The installation stability of the second sealing ring 30 in the second sealing groove 23 is ensured, the sealing effect of the contact side of the two adjacent sealing inner cores 20 is further enhanced, the leakage of medium from the connection of the sealing inner core 20 is prevented, and the sealing reliability of the entire boron expansion outer flange assembly is improved.

[0037] Working principle of the sealing enhancement assembly of the boron expansion outer flange:

[0038] First, the two end external pipelines 50 are respectively connected with the two groups of boron expansion outer flanges 10, and the expansion pipe heads 51 are embedded into the expansion grooves 12, ensuring that the insertion pipe heads 21 are matched with the inner diameters of the external pipelines 50 and are smoothly connected and matched.

[0039] Then, the two groups of sealing inner cores 20 are respectively embedded into the expansion grooves 12 of the two groups of boron expansion outer flanges 10, ensuring that the first sealing grooves 22 on the sealing inner cores 20 are directed to the correct positions for subsequent installation of the first sealing rings 40. Then, the first sealing rings 40 are connected and installed into the first sealing grooves 22, so that the first sealing rings 40 are tightly attached between the outer walls of the sealing inner cores 20 and the inner walls of the boron expansion outer flanges 10, enhancing the sealing performance at this position.

[0040] Then, the second sealing ring 30 is inserted into the second sealing groove 23 on the inner wall of one group of sealing inner cores 20 away from the insertion pipe head 21, and the second sealing groove 23 of the other group of sealing inner cores 20 is connected with the second sealing ring 30.

[0041] After that, the two groups of boron expansion outer flanges 10 are connected through the flange connection holes 11 by the connecting bolts 60, and are connected and fixed by the matched nuts 61, so that the two groups of flanges are tightly butted. At this time, the contact sides of the two groups of sealing inner cores 20 are sealed by the second sealing ring 30, as shown in FIG. 6. Figure 4 ​

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sealing enhancement assembly for a boron-expanded external flange, characterized in that: It includes two sets of symmetrically arranged boron-expanded outer flanges (10) for connecting external pipes (50) and two sets of sealing inner cores (20). The two sets of sealing inner cores (20) are respectively embedded in the two sets of boron-expanded outer flanges (10). A first sealing ring (40) is provided between the outer wall of the sealing inner core (20) and the inner wall of the boron-expanded outer flange (10). A second sealing ring (30) is embedded on the contact side of the two adjacent sets of sealing inner cores (20). The boron-bonded flange (10) has an expansion groove (12) for installing an expansion pipe head (51) for an external pipe (50) and a sealing inner core (20). The sealing core (20) is embedded in the outer groove (12) and one end is coaxially connected to a plug head (21) that is compatible with the inner diameter of the external pipe (50) and is plugged in. The outer wall of the sealing core (20) is provided with a first sealing groove (22) for installing the first sealing ring (40). The inner wall of the sealing core (20) away from the plug head (21) is provided with a second sealing groove (23) for installing the second sealing ring (30). The width of the second sealing ring (30) is twice the width of the second sealing groove (23).

2. The sealing enhancement assembly for the boron-expanded flange according to claim 1, characterized in that: Flange connection holes (11) are provided at the four apex corners of the boron-expanded outer flange (10).

3. The sealing enhancement assembly for the boron-expanded flange according to claim 2, characterized in that: The two sets of boron-expanded outer flanges (10) are connected and fixed by connecting bolts (60) passing through flange connection holes (11) and by matching nuts (61).

4. The sealing enhancement assembly of the boron-expanded flange according to claim 1, characterized in that: The second sealing ring (30) includes a metal outer ring (31) and a rubber inner ring (32).

5. The sealing enhancement assembly for the boron-expanded flange according to claim 4, characterized in that: The metal outer ring (31) is made of stainless steel and has a thickness of 1-3 mm.

6. The sealing enhancement assembly for the boron-expanded flange according to claim 1, characterized in that: The first sealing ring (40) is a circular sealing ring, and the size of the first sealing ring (40) is compatible with the size of the first sealing groove (22) and the two are engaged.

7. The sealing enhancement assembly for the boron-expanded flange according to claim 1, characterized in that: The cross-sectional dimensions of the second sealing ring (30) and the second sealing groove (23) are compatible and they are interlocked.

Images