Flange with high sealing performance

Abstract

The utility model relates to the technical field of flanges, and discloses a flange with strong sealing performance, a pressing ring A is fixedly arranged on the right side of a flange A, a pressing ring B is fixedly arranged on the left side of a flange B, an annular groove A and an annular groove B are respectively arranged on the left side wall and the right side wall of a connecting disc, and a sealing ring A and a sealing ring B are respectively arranged in the annular groove A and the annular groove B. The pressing ring A is inserted into the annular groove A and is connected with the sealing ring A in an abutting mode. The pressing ring B is inserted into the annular groove B to be in abutting connection with the sealing ring B. The flange A and the flange B are fixedly connected with the connecting disc through fixing assemblies, when the flange A and the flange B are fixedly connected with the connecting disc, the sealing ring A is fixedly connected with the pressing ring A and the connecting disc, and the sealing ring B is fixedly connected with the pressing ring B and the connecting disc. The sealing device has strong sealing performance, and solves the problem that a medium slowly leaks out from a gap under the pushing of high pressure due to the fact that the gap is easily generated at the joint of the sealing gasket or the sealing ring and the flange.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a flange with strong sealing performance. Background Art

[0002] Flange is also called flange flange or flange. Flange is a part that connects shafts to each other and is often used to connect pipe ends. Flanges are usually used in pairs. In pipeline engineering, flanges are mainly used to connect pipelines. They are installed at the ends of two pipes that need to be connected. A gasket or sealing ring is added between the two flanges and then fastened with bolts.

[0003] In systems that transport high-pressure media, the joints need to have strong sealing properties to prevent media leakage. Existing flanges usually only use a single gasket or sealing ring for sealing, and the sealing properties are relatively average. Under long-term pressure, gaps are likely to form at the joints between the gasket or sealing ring and the flange, which will cause the media to slowly leak out from the gaps under the pressure of high pressure. Utility Model Content

[0004] The purpose of the utility model is to provide a flange with strong sealing performance to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange with strong sealing performance, comprising a flange A and a flange B located on the right side of the flange A, characterized in that: the flange A and the flange B are connected through an installation assembly, the installation assembly comprises a connecting disk, a sealing ring A and a sealing ring B, and a fixing assembly, a pressure ring A is fixedly arranged on the right side of the flange A, a pressure ring B is fixedly arranged on the left side of the flange B, an annular groove A and an annular groove B are respectively provided on the left and right side walls of the connecting disk, the sealing ring A and the sealing ring B are respectively located inside the annular groove A and the annular groove B, the pressure ring A is inserted into the annular groove A and is connected in contact with the sealing ring A, the pressure ring B is inserted into the annular groove B and is connected in contact with the sealing ring B, the flange A and the flange B are fixedly connected to the connecting disk through the fixing assembly, and when the flange A and the flange B are fixedly connected to the connecting disk, the sealing ring A is fixedly connected to the pressure ring A and the connecting disk, and the sealing ring B is fixedly connected to the pressure ring B and the connecting disk.

[0006] Preferably, the mounting assembly further comprises a sealing gasket A and a sealing gasket B, wherein the sealing gasket A is located on the inner side of the pressure ring A and between the pressure ring A and the connecting disk, and the sealing gasket B is located on the inner side of the pressure ring B and between the pressure ring B and the connecting disk. When the flange A and the flange B are fixedly connected to the connecting disk, the sealing gasket A is fixedly connected to the pressure ring A and the connecting disk, and the sealing gasket B is fixedly connected to the pressure ring B and the connecting disk.

[0007] Preferably, the installation assembly also includes a sealing ring C and a sealing ring D, a pressure ring C located on the outside of the pressure ring A is fixedly provided on the right side of the flange A, and a pressure ring D located on the outside of the pressure ring B is fixedly provided on the left side of the flange B, and a ring groove C and a ring groove D located on the outside of the ring groove A and the ring groove B are respectively opened on the left and right side walls of the connecting disk, and the sealing ring C and the sealing ring D are respectively located inside the ring groove C and the ring groove D, and the pressure ring C is inserted into the ring groove C and is connected in contact with the sealing ring C, and the pressure ring D is inserted into the ring groove D and is connected in contact with the sealing ring D, and when the flange A and the flange B are fixedly connected to the connecting disk, the sealing ring C is fixedly connected to the pressure ring C and the connecting disk, and the sealing ring D is fixedly connected to the pressure ring D and the connecting disk.

[0008] Preferably, the mounting assembly further comprises a sealing gasket C and a sealing gasket D, wherein the sealing gasket C is located outside the pressure ring C and between the pressure ring C and the connecting disk, and the sealing gasket D is located outside the pressure ring D and between the pressure ring D and the connecting disk. When the flange A and the flange B are fixedly connected to the connecting disk, the sealing gasket C is fixedly connected to the pressure ring A and the connecting disk, and the sealing gasket D is fixedly connected to the pressure ring B and the connecting disk.

[0009] Preferably, the fixing assembly includes a positioning column A fixedly arranged on the right side of flange A, a positioning column B fixedly arranged on the left side of flange B, and a plurality of screws and nuts. A positioning groove A and a positioning groove B are respectively provided on the left and right sides of the connecting plate. Both flange A and flange B are provided with a plurality of mounting holes A on the left and right sides. The connecting plate is provided with mounting holes B on the left and right sides. After the positioning column A and the positioning column B are respectively inserted into the positioning groove A and the positioning groove B, the mounting hole A is aligned with the mounting hole B. After the screw passes through the mounting hole A and the mounting hole B, it is fixedly connected to flange A, flange B and the connecting plate through nuts.

[0010] Preferably, the mounting assembly further comprises an elastic sleeve sleeved on flange A, flange B and the connecting plate.

[0011] Preferably, the sealing ring A and the sealing ring B, the sealing pad A and the sealing pad B, the sealing ring C and the sealing ring D, and the sealing pad C and the sealing pad D are all made of fluororubber.

[0012] The beneficial effects of the utility model are as follows: when the utility model is assembled, flange A and flange B are placed on the left and right sides of the connecting plate respectively, positioning column A and positioning column B are aligned and inserted into positioning groove A and positioning groove B respectively, so that mounting hole A is aligned with mounting hole B, which plays a positioning role and is convenient for screws and nuts to be installed; at this time, pressure ring A is inserted into ring groove A and is in contact with sealing ring A, pressure ring B is inserted into ring groove B and is in contact with sealing ring B, pressure ring C is inserted into ring groove C and is in contact with sealing ring C, pressure ring D is inserted into ring groove D and is in contact with sealing ring D, sealing gasket A is placed inside pressure ring A and is located between pressure ring A and the connecting plate, sealing gasket B is placed inside pressure ring B and is located between pressure ring B and the connecting plate, sealing gasket C is placed outside pressure ring C and is located between pressure ring C and the connecting plate, sealing gasket D is placed outside pressure ring D and is located between pressure ring D and the connecting plate, screws are passed through mounting hole A and mounting hole B, and then fixedly connected with flange A, flange B and the connecting plate through nuts, The flange A and the flange B can be locked on the connecting disk to complete the assembly of the utility model; at this time, the sealing ring A is fixedly connected to the pressure ring A and the connecting disk, the sealing ring B is fixedly connected to the pressure ring B and the connecting disk, the sealing ring C is fixedly connected to the pressure ring C and the connecting disk, and the sealing ring D is fixedly connected to the pressure ring D and the connecting disk, forming a multi-channel sealing structure with strong sealing performance; at the same time, the sealing gasket A is fixedly connected to the pressure ring A and the connecting disk, the sealing gasket B is fixedly connected to the pressure ring B and the connecting disk, the sealing gasket C is fixedly connected to the pressure ring A and the connecting disk, and the sealing gasket D is fixedly connected to the pressure ring B and the connecting disk, which further enhances the sealing performance and prevents the leakage of the medium; in summary, the utility model has strong sealing performance, which solves the problem that the existing flange usually only uses a single sealing gasket or sealing ring for sealing, the sealing performance is relatively general, and under long-term pressure, gaps are easily generated at the connection between the sealing gasket or sealing ring and the flange, resulting in the medium slowly leaking out from the gap under the push of high pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the left structure of the utility model;

[0014] Attached Figure 2 It is a schematic diagram of the right side structure of the utility model;

[0015] Attached Figure 3 It is a left view of the utility model;

[0016] Attached Figure 4 For attachment Figure 3 Sectional view at AA;

[0017] Attached Figure 5 For attachment Figure 3 Cross-sectional view at BB in the middle.

[0018] In the figure: flange A1, flange B2, connecting plate 3, sealing ring A4, sealing ring B5, pressure ring A6, pressure ring B7, ring groove A8, ring groove B9, sealing gasket A10, sealing gasket B11, sealing ring C12, sealing ring D13, pressure ring C14, pressure ring D15, ring groove C16, ring groove D17, sealing gasket C18, sealing gasket D19, positioning column A20, positioning column B21, screw 22, nut 23, positioning groove A24, positioning groove B25, mounting hole A26, mounting hole B27, elastic sleeve 28. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figure 1-5As shown, the utility model discloses a flange with strong sealing performance, including a flange A1 and a flange B2 located on the right side of the flange A1, the flange A1 and the flange B2 are connected through an installation component, the installation component includes a connecting plate 3, a sealing ring A4 and a sealing ring B5, and a fixing component, a pressure ring A6 is fixedly arranged on the right side of the flange A1, a pressure ring B7 is fixedly arranged on the left side of the flange B2, an annular groove A8 and an annular groove B9 are respectively opened on the left and right side walls of the connecting plate 3, the sealing ring A4 and the sealing ring B5 are respectively located inside the annular groove A8 and the annular groove B9, the pressure ring A6 is inserted into the annular groove A8 and is in contact with the sealing ring A4, the pressure ring B7 is inserted into the annular groove B9 and is in contact with the sealing ring B5, the flange A1 and the flange B2 are fixedly connected to the connecting plate 3 through the fixing component, when the flange A1 and the flange B2 are fixedly connected to the connecting plate 3, the sealing ring A4 is fixedly connected to the pressure ring A6 and the connecting plate 3, and the sealing ring B5 is fixedly connected to the pressure ring B7 and the connecting plate 3.When assembling the utility model, flange A1 and flange B2 are placed on the left and right sides of the connecting plate 3 respectively, and the positioning column A20 and the positioning column B21 are aligned and inserted into the positioning groove A24 and the positioning groove B25 respectively, so that the mounting hole A26 is aligned with the mounting hole B27, which plays a positioning role and facilitates the installation of the screw 22 and the nut 23; at this time, the pressure ring A6 is inserted into the ring groove A8 and is in contact with the sealing ring A4, the pressure ring B7 is inserted into the ring groove B9 and is in contact with the sealing ring B5, the pressure ring C14 is inserted into the ring groove C16 and is in contact with the sealing ring C12, and the pressure ring D Insert 15 into the ring groove D17 and contact the sealing ring D13, put the sealing gasket A10 into the inner side of the pressing ring A6 and locate it between the pressing ring A6 and the connecting plate 3, put the sealing gasket B11 into the inner side of the pressing ring B7 and locate it between the pressing ring B7 and the connecting plate 3, put the sealing gasket C18 into the outer side of the pressing ring C14 and locate it between the pressing ring C14 and the connecting plate 3, put the sealing gasket D19 into the outer side of the pressing ring D15 and locate it between the pressing ring D15 and the connecting plate 3, and pass the screw 22 through the mounting hole A26 and the mounting hole B27 and then connect it to the flange A1 and the flange through the nut 23. B2 is fixedly connected to the connecting disk 3, and the flange A1 and the flange B2 can be locked on the connecting disk 3 to complete the assembly of the utility model; at this time, the sealing ring A4 is fixedly connected to the pressure ring A6 and the connecting disk 3, the sealing ring B5 is fixedly connected to the pressure ring B7 and the connecting disk 3, the sealing ring C12 is fixedly connected to the pressure ring C14 and the connecting disk 3, and the sealing ring D13 is fixedly connected to the pressure ring D15 and the connecting disk 3, forming a multi-channel sealing structure with strong sealing performance; at the same time, the sealing gasket A10 is fixedly connected to the pressure ring A6 and the connecting disk 3, and the sealing gasket B11 is fixedly connected to the pressure ring A6 and the connecting disk 3. The pressure ring B7 and the connecting disk 3 are fixedly connected, the sealing gasket C18 is fixedly connected to the pressure ring A6 and the connecting disk 3, and the sealing gasket D19 is fixedly connected to the pressure ring B7 and the connecting disk 3, which further enhances the sealing performance and prevents the leakage of the medium. In summary, the utility model has strong sealing performance, which solves the problem that the existing flange usually only uses a single sealing gasket or sealing ring for sealing, and the sealing performance is relatively general. Under long-term pressure, gaps are easily generated at the connection between the sealing gasket or the sealing ring and the flange, causing the medium to slowly leak out from the gap under high pressure.

[0021] Preferably, the installation assembly further comprises a sealing gasket A10 and a sealing gasket B11, wherein the sealing gasket A10 is located inside the pressure ring A6 and between the pressure ring A6 and the connection disk 3, and the sealing gasket B11 is located inside the pressure ring B7 and between the pressure ring B7 and the connection disk 3. When the flange A1 and the flange B2 are fixedly connected to the connection disk 3, the sealing gasket A10 is fixedly connected to the pressure ring A6 and the connection disk 3, and the sealing gasket B11 is fixedly connected to the pressure ring B7 and the connection disk 3. Since the sealing gasket A10 is fixedly connected to the pressure ring A6 and the connection disk 3, and the sealing gasket B11 is fixedly connected to the pressure ring B7 and the connection disk 3 when the flange A1 and the flange B2 are fixedly connected to the connection disk 3, it plays a role in preventing the internal medium of the pipeline from leaking out from the flange connection.

[0022] Preferably, the installation assembly also includes a sealing ring C12 and a sealing ring D13, a pressing ring C14 located on the outside of the pressing ring A6 is fixedly provided on the right side of the flange A1, and a pressing ring D15 located on the outside of the pressing ring B7 is fixedly provided on the left side of the flange B2, and a ring groove C16 and a ring groove D17 located on the outside of the ring groove A8 and the ring groove B9 are respectively opened on the left and right side walls of the connecting disk 3, and the sealing ring C12 and the sealing ring D13 are respectively located inside the ring groove C16 and the ring groove D17, and the pressing ring C14 is inserted into the ring groove C16 and is in contact with the sealing ring C12, and the pressing ring D15 is inserted into the ring groove D17 and is in contact with the sealing ring D13. When the flange A1 and the flange B2 are fixedly connected to the connecting disk 3, the sealing ring C12 is fixedly connected to the pressing ring C14 and the connecting disk 3, and the sealing ring D13 is fixedly connected to the pressing ring D15 and the connecting disk 3. When flange A1 and flange B2 are fixedly connected to connecting plate 3, sealing ring C12 is fixedly connected to pressure ring C14 and connecting plate 3, and sealing ring D13 is fixedly connected to pressure ring D15 and connecting plate 3, a multi-pass sealing structure is formed to enhance the sealing performance.

[0023] Preferably, the installation assembly further comprises a sealing gasket C18 and a sealing gasket D19, wherein the sealing gasket C18 is located outside the pressure ring C14 and between the pressure ring C14 and the connection plate 3, and the sealing gasket D19 is located outside the pressure ring D15 and between the pressure ring D15 and the connection plate 3. When the flange A1 and the flange B2 are fixedly connected to the connection plate 3, the sealing gasket C18 is fixedly connected to the pressure ring A6 and the connection plate 3, and the sealing gasket D19 is fixedly connected to the pressure ring B7 and the connection plate 3. Since the sealing gasket C18 is fixedly connected to the pressure ring A6 and the connection plate 3, and the sealing gasket D19 is fixedly connected to the pressure ring B7 and the connection plate 3 when the flange A1 and the flange B2 are fixedly connected to the connection plate 3, it plays a role in preventing external water vapor from entering from the connection between the screw 22 and the nut 23.

[0024] Preferably, the fixing assembly includes a positioning column A20 fixedly arranged on the right side of the flange A1, a positioning column B21 fixedly arranged on the left side of the flange B2, a plurality of screws 22 and nuts 23, the left and right sides of the connecting plate 3 are respectively provided with positioning grooves A24 and positioning grooves B25, the flange A1 and the flange B2 are both provided with a plurality of mounting holes A26 extending therethrough on the left and right sides, the connecting plate 3 is provided with mounting holes B27 extending therethrough on the left and right sides, the positioning column A20 and the positioning column B21 are respectively inserted into the positioning grooves A24 and the positioning grooves B25, and the mounting holes A26 and the mounting holes B27 are aligned, the screws 22 pass through the mounting holes A26 and the mounting holes B27 and are fixedly connected to the flange A1, flange B2 and the connecting plate 3 through the nuts 23. Since the positioning column A20 and the positioning column B21 are respectively inserted into the positioning groove A24 and the positioning groove B25, the mounting hole A26 is aligned with the mounting hole B27, which plays a positioning role and facilitates the installation of the screw 22 and the nut 23; since the screw 22 passes through the mounting hole A26 and the mounting hole B27 and is fixedly connected to the flange A1, flange B2 and the connecting plate 3 through the nut 23, it plays the role of locking the flange A1 and the flange B2.

[0025] Preferably, the mounting assembly further comprises an elastic sleeve 28 sleeved on the flange A1, the flange B2 and the connecting plate 3. Since the elastic sleeve 28 is sleeved on the flange A1, the flange B2 and the connecting plate 3, it plays a role in blocking external impurities.

[0026] Preferably, the sealing ring A4 and the sealing ring B5, the sealing pad A10 and the sealing pad B11, the sealing ring C12 and the sealing ring D13, the sealing pad C18 and the sealing pad D19 are all made of fluororubber, which has the characteristics of corrosion resistance and wear resistance.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flange with strong sealing performance, comprising a flange A (1) and a flange B (2) located on the right side of the flange A (1), characterized in that: The flange A (1) and the flange B (2) are connected via an installation assembly, wherein the installation assembly comprises a connecting plate (3), a sealing ring A (4), a sealing ring B (5), and a fixing assembly. A pressure ring A (6) is fixedly provided on the right side of the flange A (1), and a pressure ring B (7) is fixedly provided on the left side of the flange B (2). An annular groove A (8) and an annular groove B (9) are respectively provided on the left and right side walls of the connecting plate (3), and the sealing ring A (4) and the sealing ring B (5) are respectively located in the annular groove A (8) and the annular groove B (9). The pressure ring A (6) is inserted into the annular groove A (8) and is in contact with the sealing ring A (4); the pressure ring B (7) is inserted into the annular groove B (9) and is in contact with the sealing ring B (5); the flange A (1) and the flange B (2) are fixedly connected to the connecting plate (3) through a fixing assembly; when the flange A (1) and the flange B (2) are fixedly connected to the connecting plate (3), the sealing ring A (4) is fixedly connected to the pressure ring A (6) and the connecting plate (3), and the sealing ring B (5) is fixedly connected to the pressure ring B (7) and the connecting plate (3).

2. A flange with strong sealing performance according to claim 1, characterized in that: The mounting assembly further comprises a sealing gasket A (10) and a sealing gasket B (11), wherein the sealing gasket A (10) is located inside the pressure ring A (6) and between the pressure ring A (6) and the connecting plate (3), and the sealing gasket B (11) is located inside the pressure ring B (7) and between the pressure ring B (7) and the connecting plate (3). When the flange A (1) and the flange B (2) are fixedly connected to the connecting plate (3), the sealing gasket A (10) is fixedly connected to the pressure ring A (6) and the connecting plate (3), and the sealing gasket B (11) is fixedly connected to the pressure ring B (7) and the connecting plate (3).

3. A flange with strong sealing performance according to claim 2, characterized in that: The mounting assembly further comprises a sealing ring C (12) and a sealing ring D (13). A pressing ring C (14) located outside the pressing ring A (6) is fixedly arranged on the right side of the flange A (1). A pressing ring D (15) located outside the pressing ring B (7) is fixedly arranged on the left side of the flange B (2). A ring groove C (16) and a ring groove D (17) located outside the ring groove A (8) and the ring groove B (9) are respectively formed on the left and right side walls of the connecting plate (3). The sealing ring C (12) and the sealing ring D (13) are respectively The flanges A (1) and B (2) are respectively located inside the annular groove C (16) and the annular groove D (17); the pressure ring C (14) is inserted into the annular groove C (16) and is in contact with the sealing ring C (12); the pressure ring D (15) is inserted into the annular groove D (17) and is in contact with the sealing ring D (13); when the flanges A (1) and B (2) are fixedly connected to the connecting plate (3), the sealing ring C (12) is fixedly connected to the pressure ring C (14) and the connecting plate (3); and the sealing ring D (13) is fixedly connected to the pressure ring D (15) and the connecting plate (3).

4. A flange with strong sealing performance according to claim 3, characterized in that: The mounting assembly further comprises a sealing gasket C (18) and a sealing gasket D (19), wherein the sealing gasket C (18) is located outside the pressing ring C (14) and between the pressing ring C (14) and the connecting plate (3), and the sealing gasket D (19) is located outside the pressing ring D (15) and between the pressing ring D (15) and the connecting plate (3). When the flange A (1) and the flange B (2) are fixedly connected to the connecting plate (3), the sealing gasket C (18) is fixedly connected to the pressing ring A (6) and the connecting plate (3), and the sealing gasket D (19) is fixedly connected to the pressing ring B (7) and the connecting plate (3).

5. The flange with strong sealing performance according to claim 1, characterized in that: The fixing assembly comprises a positioning column A (20) fixedly arranged on the right side of the flange A (1), a positioning column B (21) fixedly arranged on the left side of the flange B (2), a plurality of screws (22) and nuts (23); the connecting plate (3) is provided with a positioning groove A (24) and a positioning groove B (25) on the left and right sides respectively; the flange A (1) and the flange B (2) are provided with a plurality of mounting holes A (26) on the left and right sides respectively; the connecting plate (3) is provided with a mounting hole B (27) on the left and right sides respectively; after the positioning column A (20) and the positioning column B (21) are respectively inserted into the positioning groove A (24) and the positioning groove B (25), the mounting hole A (26) is aligned with the mounting hole B (27); after the screw (22) passes through the mounting hole A (26) and the mounting hole B (27), it is fixedly connected to the flange A (1), the flange B (2) and the connecting plate (3) through the nut (23).

6. A flange with strong sealing performance according to claim 1, characterized in that: The mounting assembly further comprises an elastic sleeve (28) sleeved on the flange A (1), the flange B (2) and the connecting plate (3).

7. A flange with strong sealing performance according to claim 4, characterized in that: The sealing ring A (4) and the sealing ring B (5), the sealing gasket A (10) and the sealing gasket B (11), the sealing ring C (12) and the sealing ring D (13), and the sealing gasket C (18) and the sealing gasket D (19) are all made of fluororubber.

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