High-pressure-resistant flange

Abstract

The utility model discloses a high-pressure-resistant flange which comprises a main disc and an auxiliary disc, the main disc is provided with a first channel with two through ends along the axis, one side of the main disc extends outwards to form a cylindrical connecting part, the axis of the connecting part is aligned with the axis of the first channel, the auxiliary disc is provided with a second channel with two through ends along the axis, and the second channel is consistent with the first channel in aperture. A connecting ring groove is formed in one end of the second channel, a clamping groove is formed in the bottom of the connecting ring groove, a sealing ring is arranged in the clamping groove, the connecting part is in threaded connection with the connecting ring groove, and an extrusion end is formed at the end, away from the main disc, of the connecting part and used for extruding the sealing ring after the connecting part is connected with the connecting ring groove. The sealing performance of the connecting area can be greatly improved through threaded connection of the connecting part and the connecting ring groove, the sealing effect of the sealing ring can be exerted to the maximum extent by further extruding the sealing ring, and then the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, and more particularly to a high-pressure resistant flange. Background Art

[0002] Flanges are commonly used connection units in pipeline systems. They are mainly used to achieve the docking and connection of pipelines. In some high-pressure environments, high-pressure flanges are required to avoid medium leakage at the connection between the two flanges.

[0003] In response to this, today's high-pressure resistant flanges are mostly plugged into each other and equipped with sealing rings at the plug-in points to improve the sealing effect. However, the above method still has the problem of poor sealing effect. At the same time, the plug-in method will also cause the pipe diameter in the channel to change, which will lead to more turbulence during the flow of the medium, resulting in greater impact on the pipeline, so it needs to be improved. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a high-pressure resistant flange that can provide a good sealing effect and at the same time ensure the stability of the medium flow to reduce impact.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A high-pressure resistant flange comprises a main plate, wherein the main plate is provided with a first channel extending through both ends along its axis, and one side of the main plate extends outward to form a cylindrical connecting portion, wherein the axis of the connecting portion is aligned with the axis of the first channel;

[0007] A secondary disk is provided with a second channel with two ends passing through it along the axis, the second channel has the same aperture as the first channel, a connecting ring groove is provided at one end of the second channel, a clamping groove is provided at the bottom of the connecting ring groove, a sealing ring is provided in the clamping groove, the connecting part is threadedly connected to the connecting ring groove, and an extrusion end is formed at the end of the connecting part away from the main disk, and the extrusion end is used to extrude the sealing ring after the connecting part is connected to the connecting ring groove.

[0008] As a further improvement of the present invention, injection holes are provided on the outer side of the auxiliary disk corresponding to the connecting ring groove.

[0009] As a further improvement of the present invention, when the connecting portion and the connecting ring groove are connected to each other, the first channel and the second channel are aligned and connected to each other.

[0010] As a further improvement of the present invention, annular limiting sheets are symmetrically provided on both sides of the card slot. The limiting sheets are arc-shaped and are used to partially cover the sealing ring to limit the separation of the sealing ring from the card slot.

[0011] As a further improvement of the present invention, an annular connecting surface is formed on the outside of the main disk and the sub-disk, and the two connecting surfaces are respectively provided with a first positioning hole and a second positioning hole corresponding to each other. The first positioning hole is connected to the second positioning hole by a bolt to limit the rotation of the main disk relative to the sub-disk.

[0012] As a further improvement of the present invention, the number of the first positioning holes and the second positioning holes are both 2 and symmetrically arranged.

[0013] As a further improvement of the present invention, the surfaces of the main disc and the auxiliary disc that are close to each other form limiting surfaces, and the two limiting surfaces are used to interfere with each other to limit the maximum connection range of the connecting part and the connecting ring groove.

[0014] As a further improvement of the present invention, the edge of the connecting portion forms an annular interference edge, and when the two limiting surfaces interfere with each other, the first channel is aligned and interferes with the second channel through the interference edge.

[0015] Beneficial effects of the utility model:

[0016] 1. The threaded connection between the connecting portion and the connecting ring groove can greatly improve the sealing performance of the connection area, and further the sealing effect of the sealing ring can be maximized by squeezing the sealing ring, thereby improving the sealing effect.

[0017] 2. The setting of the sealing ring groove can avoid the different apertures of the first channel / second channel caused by the connection part, thereby ensuring the stability of the medium during flow, greatly reducing the impact on the flange and subsequent pipelines, and thus improving the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic cross-sectional diagram of the overall installation of the utility model;

[0019] Figure 2 for Figure 1 A partial enlarged view.

[0020] Figure numerals: 1. main disk; 2. first channel; 3. connecting part; 4. sub-disk; 5. second channel; 6. connecting ring groove; 7. card groove; 8. sealing ring; 9. extrusion end; 10. injection hole; 11. limiting sheet; 12. connecting surface; 13. first positioning hole; 14. second positioning hole; 15. limiting surface; 16. contact edge. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments, wherein the same components are denoted by the same reference numerals.

[0022] like Figure 1-2As shown, a high-pressure resistant flange includes a main disk 1, which has a first channel 2 with both ends passing through it along its axis. One side of the main disk 1 extends outward to form a cylindrical connecting portion 3, and the axis of the connecting portion 3 is aligned with the axis of the first channel 2.

[0023] Preferably, a sub-disk 4 is further included, and the sub-disk 4 is provided with a second channel 5 passing through at both ends along the axis. The second channel 5 has the same aperture as the first channel 2, and a connecting ring groove 6 is provided at one end of the second channel 5. A clamping groove 7 is provided at the bottom of the connecting ring groove 6, and a sealing ring 8 is provided in the clamping groove 7. The connecting part 3 is threadedly connected to the connecting ring groove 6, and an extrusion end 9 is formed at the end of the connecting part 3 away from the main disk 1. The extrusion end 9 is used to extrude the sealing ring 8 after the connecting part 3 is connected to the connecting ring groove 6.

[0024] When in use, the end of the first channel 2 away from the connecting part 3 is connected to the end of the pipe on one side, specifically by welding, and the sealing ring 8 is further installed in the groove 7, and the sub-disc 4 is connected to the main disk 1, so that the connecting part 3 and the connecting ring groove 6 are threadedly fixed. At the same time, after the connection, the extrusion end 9 can extrude the sealing ring 8, so that the sealing ring 8 undergoes natural deformation to block the extrusion end 9 area, thereby preventing the medium from entering the threaded connection area along this area, thereby greatly improving the sealing effect. After the sub-disc 4 is connected, the pipe on the other side is connected to the second channel 5 to complete the connection between the pipes on both sides.

[0025] Since the apertures of the first channel 2 and the second channel 5 are consistent, the medium has less turbulence when passing through, thereby greatly reducing the impact on the main disk 1 and the auxiliary disk 4, thereby ensuring the stability of the connection between the two.

[0026] Preferably, an injection hole 10 is provided on the outer side of the auxiliary disk 4 corresponding to the connecting ring groove 6 .

[0027] The setting of the injection hole 10 allows the connection part 3 to be injected with material when the connection part 3 is screwed into the connection ring groove 6 when the main disk 1 and the sub-disk 4 need to be permanently sealed. The material can be specifically industrial glue, so that the connection part 3 and the connection ring groove 6 can be permanently sealed. The setting of the injection hole 10 can make the injection of material more stable and uniform, thereby improving the sealing and fixing effect.

[0028] Preferably, when the connecting portion 3 and the connecting ring groove 6 are connected to each other, the first channel 2 and the second channel 5 are aligned and communicated with each other.

[0029] Preferably, annular limiting sheets 11 are symmetrically provided on both sides of the slot 7 . The limiting sheets 11 are arc-shaped. The limiting sheets 11 on both sides are used to partially cover the sealing ring 8 to limit the sealing ring 8 from separating from the slot 7 .

[0030] On the one hand, the setting of the limiting sheet 11 can fix the sealing ring 8 to prevent the sealing ring 8 from falling off during the connection process. At the same time, the natural deformation of the limiting sheet 11 after being impacted by the extrusion end 9 can also reduce the deviation of the sealing ring 8, thereby making the position of the sealing ring 8 more stable when in contact with the extrusion end 9.

[0031] Preferably, an annular connecting surface 12 is formed on the outside of the main disk 1 and the sub-disk 4, and the two connecting surfaces 12 are respectively provided with a first positioning hole 13 and a second positioning hole 14 corresponding to each other. The first positioning hole 13 is connected to the second positioning hole 14 by a bolt to limit the rotation of the main disk 1 relative to the sub-disk 4.

[0032] The mutual fixation of the first positioning hole 13 and the second positioning hole 14 can avoid the main disk 1 from rotating relative to the sub-disk 4 due to vibration during use, thereby preventing the connection with the pipeline or between the two from being unstable, thereby improving stability.

[0033] Preferably, the number of the first positioning holes 13 and the second positioning holes 14 are both 2 and symmetrically arranged.

[0034] The symmetrical arrangement of the first positioning holes 13 and the second positioning holes 14 can make the main plate 1 and the auxiliary plate 4 bear forces more evenly, thereby improving stability.

[0035] Preferably, the surfaces of the main disk 1 and the auxiliary disk 4 that are close to each other form limiting surfaces 15 , and the two limiting surfaces 15 are used to interfere with each other to limit the maximum connection range of the connecting portion 3 and the connecting ring groove 6 .

[0036] The limiting surface 15 can cooperate with the first positioning hole 13 and the second positioning hole 14 to allow the operator to determine the position of the connecting portion 3 relative to the connecting ring groove 6, thereby ensuring an accurate connection position.

[0037] Preferably, an annular abutting edge 16 is formed on the edge of the connecting portion 3 , and when the two limiting surfaces 15 abut against each other, the first channel 2 is aligned and abutted against the second channel 5 through the abutting edge 16 .

[0038] The arrangement of the abutting edge 16 can further improve the smoothness between the first channel 2 and the second channel 5 , thereby increasing the stability of the medium passing therethrough.

[0039] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A high-pressure resistant flange, characterized in that: The main disc (1) comprises a first channel (2) with two through-going ends provided along an axis of the main disc (1); one side of the main disc (1) extends outward to form a cylindrical connecting portion (3); the axis of the connecting portion (3) is aligned with the axis of the first channel (2); A secondary disk (4) is provided with a second channel (5) with two ends extending therethrough along the axis, the second channel (5) having the same aperture as the first channel (2), a connecting ring groove (6) being provided at one end of the second channel (5), a clamping groove (7) being provided at the bottom of the connecting ring groove (6), a sealing ring (8) being provided in the clamping groove (7), the connecting portion (3) being threadedly connected to the connecting ring groove (6), an extrusion end (9) being formed at one end of the connecting portion (3) away from the main disk (1), the extrusion end (9) being used for extruding the sealing ring (8) after the connecting portion (3) is connected to the connecting ring groove (6).

2. The high-pressure resistant flange according to claim 1, characterized in that: The outer side of the auxiliary disk (4) is provided with a material injection hole (10) corresponding to the connecting ring groove (6).

3. The high-pressure resistant flange according to claim 1, characterized in that: When the connecting portion (3) and the connecting ring groove (6) are connected to each other, the first channel (2) and the second channel (5) are aligned and communicated with each other.

4. The high-pressure resistant flange according to claim 1, characterized in that: Annular limiting sheets (11) are symmetrically provided on both sides of the slot (7), and the limiting sheets (11) are arc-shaped. The limiting sheets (11) on both sides are used to partially cover the sealing ring (8) to limit the separation of the sealing ring (8) from the slot (7).

5. The high-pressure resistant flange according to claim 1, characterized in that: The main disk (1) and the auxiliary disk (4) are both provided with an annular connecting surface (12) on the outside. The two connecting surfaces (12) are respectively provided with a first positioning hole (13) and a second positioning hole (14) corresponding to each other. The first positioning hole (13) is connected to the second positioning hole (14) by a bolt to limit the rotation of the main disk (1) relative to the auxiliary disk (4).

6. The high-pressure resistant flange according to claim 1, characterized in that: The number of the first positioning holes (13) and the second positioning holes (14) are both two and they are symmetrically arranged.

7. The high-pressure resistant flange according to claim 5, characterized in that: The surfaces of the main disc (1) and the auxiliary disc (4) that are close to each other form limiting surfaces (15), and the two limiting surfaces (15) are used to interfere with each other to limit the maximum connection range of the connecting portion (3) and the connecting ring groove (6).

8. The high-pressure resistant flange according to claim 7, characterized in that: The edge of the connecting portion (3) forms an annular abutting edge (16). When the two limiting surfaces (15) abut against each other, the first channel (2) is aligned and abutted against the second channel (5) through the abutting edge (16).

Images