Carbon graphite ring with high sealing performance

Abstract

The utility model relates to a carbon graphite ring with high sealing performance, including end face ring A, end face ring B and connecting ring, be equipped with a plurality of connecting ring of head -to -tail splicing between end face ring A and end face ring B, the central axis of end face ring A, end face ring B and connecting ring coincides, the inboard end face of end face ring A is equipped with the butt joint ring concentric with it, the inboard end face of end face ring B is equipped with the butt joint groove concentric with it, the both sides end face of connecting ring is equipped with butt joint ring and butt joint groove concentric with it respectively, butt joint ring and butt joint groove correspond to each other, the top end face of butt joint ring is evenly equipped with a plurality of recesses along the circumference direction, the bottom end face of butt joint groove is evenly equipped with a plurality of protrusions along the circumference direction, and the protrusion corresponds to the recess. The utility model has the advantages of convenient installation and good sealing.

Description

Technical Field

[0001] This utility model relates to the field of graphite ring technology, specifically to a carbon graphite ring with high sealing performance. Background Technology

[0002] Graphite rings are ring-shaped sealing products molded from flexible graphite tape or braided packing. They are suitable for media including hot water, high-temperature steam, organic solvents, and low-temperature liquids, and are mainly used for sealing rotating parts of machinery such as compressors, valves, and chemical instruments.

[0003] Traditional graphite rings have flat end faces, allowing for relative sliding between adjacent rings. Therefore, during installation, workers need to manually or with specialized tools adjust the rings to ensure they are coaxial, reducing installation efficiency. Furthermore, the relative rotation of adjacent rings poses a risk of mechanical rotation causing them to rotate as well, potentially affecting the ring's sealing performance. Utility Model Content

[0004] The purpose of this invention is to provide a carbon graphite ring with high sealing performance, which has the advantages of convenient installation and good sealing performance.

[0005] The technical solution of this utility model is as follows:

[0006] A high-sealing-performance carbon graphite ring includes an end face ring A, an end face ring B, and a connecting ring. Several connecting rings are provided between end face rings A and B, with their central axes overlapping. The inner end face of end face ring A has a concentric mating ring, and the inner end face of end face ring B has a concentric mating groove. The two end faces of the connecting ring each have a concentric mating ring and a mating groove, with the mating ring and groove corresponding to each other. The top end face of the mating ring has several grooves evenly distributed along its circumference, and the bottom end face of the mating groove has several protrusions evenly distributed along its circumference, with the protrusions corresponding to the grooves.

[0007] Preferably, the cross-sectional shape of the docking ring is an isosceles trapezoid.

[0008] Preferably, the base angle of the cross-sectional shape of the docking ring is 60°.

[0009] Preferably, the groove is cylindrical in shape, and the depth of the groove is less than the thickness of the mating ring.

[0010] Preferably, the number of protrusions located on the same end face is 8.

[0011] The beneficial technical effects of this utility model are as follows:

[0012] By changing the number of connecting rings between end face ring A and end face ring B, the thickness requirements of graphite rings for different sized equipment interfaces can be met. The combination of mating rings and mating grooves facilitates accurate mating of stacked end face rings A, B, and connecting rings, improving assembly and disassembly efficiency. The combination of protrusions and grooves prevents relative rotation between end face rings A, B, and connecting rings, thus avoiding affecting the sealing effect. Attached Figure Description

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0014] Appendix Figure 1 This is a front-view cross-sectional view of the present invention.

[0015] Appendix Figure 2 This is a schematic diagram of the inner end face of the end face ring A of this utility model.

[0016] In the diagram: 1-End face ring A, 2-End face ring B, 3-Connecting ring, 4-Mating ring, 5-Mating groove, 6-Groove, 7-Protrusion. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Example:

[0019] like Figure 1 and Figure 2 As shown, this embodiment provides a carbon graphite ring with high sealing performance, including an end face ring A1, an end face ring B2, and a connecting ring 3. Several connecting rings 3 are provided between the end face rings A1 and B2, with their ends joined together. The central axes of the end face rings A1, B2, and 3 coincide. The inner end face of the end face ring A1 is provided with a concentric mating ring 4, and the inner end face of the end face ring B2 is provided with a concentric mating groove 5. The two end faces of the connecting ring 3 are respectively provided with a concentric mating ring 4 and a mating groove 5, with the mating ring 4 and the mating groove 5 corresponding to each other. The top end face of the mating ring 4 is provided with several grooves 6 evenly distributed along the circumference direction, and the bottom end face of the mating groove 5 is provided with several protrusions 7 evenly distributed along the circumference direction, with the protrusions 7 corresponding to the grooves 6.

[0020] By changing the number of connecting rings 3 between end face rings A1 and B2, the thickness requirements of graphite rings for different sized equipment interfaces can be met. The combination of mating rings 4 and mating grooves 5 facilitates accurate mating of stacked end face rings A1, B2, and connecting rings 3, improving installation efficiency. The combination of protrusions 7 and grooves 6 prevents relative rotation between end face rings A1, B2, and connecting rings 3, thus avoiding affecting the sealing effect.

[0021] Furthermore, the cross-sectional shape of the docking ring 4 is an isosceles trapezoid.

[0022] The mating ring 4 and the corresponding mating groove 5 each have two annular inclined surfaces. During the process of the mating ring 4 being placed into the mating groove 5, the annular inclined surfaces of the mating ring 4 and the mating groove 5 slide and abut against each other, which helps the mating end face ring A1, end face ring B2 and connecting ring 3 to move quickly to the coaxial position, improving installation efficiency. In addition, when the mating ring 4 is subjected to pressure in the thickness direction, the deformed parts of the mating ring 4 that expand to both sides abut against the inner wall of the mating groove 5, improving the sealing performance.

[0023] Furthermore, the bottom angle of the cross-sectional shape of the docking ring 4 is 60°.

[0024] Furthermore, the groove 6 is cylindrical in shape, and the depth of the groove 6 is less than the thickness of the mating ring 4.

[0025] The cylindrical groove 6 and protrusion 7 are easy to process. The depth of the groove 6 is appropriate to avoid the groove 6 being too deep, which would reduce the structural strength of the mating ring 4, connecting ring 3 and end face ring A1.

[0026] Furthermore, the number of protrusions 7 located on the same end face is 8.

[0027] A sufficient number of protrusions 7 are used to share the pressure on the protrusions 7 when the end face ring A1, end face ring B2 and connecting ring 3 rotate relative to each other, thereby reducing the risk of the protrusions 7 being twisted off.

[0028] Working principle and usage process of this utility model:

[0029] According to the size of the equipment interface where the graphite ring is to be installed, take out an appropriate number of connecting rings 3, assemble the connecting rings 3 end to end, then attach the end face rings A1 and B2 to the two ends of the previously assembled connecting rings 3, and finally put the assembled end face rings A1, B2 and connecting rings 3 into the equipment interface.

[0030] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A carbon graphite ring with high sealing performance, comprising an end face ring A, an end face ring B, and a connecting ring, wherein a plurality of connecting rings are provided between the end face rings A and B, and the central axes of the end face rings A, B, and the connecting rings coincide, characterized in that: The inner end face of the end face ring A is provided with a concentric mating ring, and the inner end face of the end face ring B is provided with a concentric mating groove. The two end faces of the connecting ring are respectively provided with a concentric mating ring and a mating groove, and the mating ring and the mating groove correspond to each other. The top end face of the mating ring is provided with a plurality of grooves evenly distributed along the circumferential direction, and the bottom end face of the mating groove is provided with a plurality of protrusions evenly distributed along the circumferential direction, and the protrusions correspond to the grooves.

2. The carbon graphite ring with high sealing performance according to claim 1, characterized in that: The cross-sectional shape of the docking ring is an isosceles trapezoid.

3. A carbon graphite ring with high sealing performance according to claim 2, characterized in that: The bottom angle of the cross-sectional shape of the docking ring is 60°.

4. A carbon graphite ring with high sealing performance according to claim 1, characterized in that: The groove is cylindrical in shape, and the depth of the groove is less than the thickness of the mating ring.

5. A carbon graphite ring with high sealing performance according to claim 4, characterized in that: The number of protrusions located on the same end face is 8.

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