CN217030412U

CN217030412U - Novel graphite head assembly

Info

Publication number: CN217030412U
Application number: CN202221435261.2U
Authority: CN
Inventors: 白玉洁; 白雨禾; 耿英飒; 王旭; 李强
Original assignee: Shenyang Chuangpu Rail Transit Equipment Technology Co ltd
Current assignee: Shenyang Chuangpu Rail Transit Equipment Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-07-22
Anticipated expiration: 2032-06-10

Abstract

The utility model relates to the technical field of graphite equipment, in particular to a novel graphite sealing head assembly which comprises an expansion joint, wherein the upper end and the lower end of the expansion joint are respectively provided with a connecting flange, the upper end and the lower end of the expansion joint are respectively connected with the graphite equipment and an external pipeline through the connecting flanges, the upper side and the lower side of the expansion joint are respectively provided with a lining sleeve, the inner annular walls of the upper lining sleeve and the lower lining sleeve are respectively provided with a first graphite layer and a second graphite layer, the first graphite layer and the second graphite layer are both in cylindrical structures, the top surface of the second graphite layer is provided with a hidden annular cavity along a circumferential circle, and the bottom end of the first graphite layer is movably inserted into the hidden annular cavity. According to the utility model, the first graphite layer and the second graphite layer are arranged in the expansion joint and used for enhancing the corrosion resistance of the expansion joint, so that the service life of the seal head assembly is prolonged.

Description

Novel graphite head assembly

Technical Field

The utility model relates to the technical field of graphite equipment, in particular to a novel graphite end socket assembly.

Background

Now, when graphite equipment and external piping connected, the pipeline often need the bucking, and the pipeline of bucking can produce certain stress, and then influences the inside graphite parts performance of graphite equipment. In the prior art, utility model patent with publication number CN208295355U provides a novel graphite head assembly, which comprises an expansion joint, a first flange, a second flange and a steel flange. According to the technical scheme, the first pressing flanges and the steel flanges at the two ends of the expansion joint are respectively connected with the external pipeline and the graphite equipment, so that the buckling of the pipeline is adapted, and the stress of the pipeline on the graphite equipment is reduced. However, the expansion joint in the graphite sealing head assembly has no corrosion resistance, and the expansion joint is easy to damage along with the increase of the service time, thereby increasing the maintenance cost of the graphite equipment. Therefore, a novel graphite end socket assembly is provided to well solve the defects.

Disclosure of Invention

The utility model aims to provide a novel graphite end socket assembly which is used for solving the problems in the background technology.

The utility model is realized by the following technical scheme:

the utility model provides a novel graphite head subassembly, includes the expansion joint, the upper and lower both ends of expansion joint all are equipped with flange, the upper and lower both ends of expansion joint are passed through flange and are linked to each other with graphite equipment and outside pipeline respectively, both sides all are equipped with the inside lining sleeve about the inside of expansion joint, two from top to bottom be equipped with first graphite layer and second graphite layer on the telescopic interior rampart of inside lining respectively, first graphite layer and second graphite layer all are the tubular structure, the top surface on second graphite layer has been seted up along the circumference round and has been hidden the ring cavity, the bottom activity on first graphite layer inserts extremely hide the ring cavity.

Optionally, the first graphite layer is a two-section structure composed of an upper annular portion and a lower annular portion, the thickness of the lower annular portion is thinner than that of the upper annular portion, and the lower annular portion and a lining sleeve attached to the outside of the lower annular portion are movably inserted into the hidden annular cavity.

Optionally, the inner annular wall and the outer annular wall inside the hidden annular cavity are both provided with annular sealing layers in an attached manner, and the two sealing layers are respectively attached to the inner surface of the lower annular portion and the outer surface of the lining sleeve.

Optionally, the sealing layer is made of a rubber material.

Optionally, both sides all are equipped with about the inside of expansion joint and are annular inside lining circle, two along the circumference protrusion shaping on the telescopic periphery wall of inside lining have the circular bead, two the circular bead respectively with two inside lining circle fixed connection.

Optionally, an internal thread is provided on the inner circumferential wall of the inner lining ring, an external thread is provided on the outer circumferential wall of the shoulder, and the inner lining ring is connected to the shoulder through a thread.

Compared with the prior art, the utility model provides a novel graphite end socket assembly which has the following beneficial effects:

1. the first graphite layer and the second graphite layer are arranged in the expansion joint and used for enhancing the corrosion resistance of the expansion joint, so that the service life of the end socket assembly is prolonged;

2. according to the utility model, the bottom of the first graphite layer is inserted into the hidden annular cavity at the top of the second graphite layer in a sliding manner, so that when the expansion joint stretches, the first graphite layer and the second graphite layer can slide relatively, and further damage caused by the stress of a pipeline is avoided, and the service life of the seal head assembly is further prolonged.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a first graphite layer and a second graphite layer;

FIG. 3 is an enlarged corresponding view taken at A in FIG. 1;

FIG. 4 is an enlarged corresponding view of B in FIG. 1;

FIG. 5 is a schematic view of the liner sleeve of the present invention.

In the figure: 1. an expansion joint; 2. a connecting flange; 3. a liner sleeve; 4. a first graphite layer; 401. an upper annular portion; 402. a lower annular portion; 5. a second graphite layer; 6. hiding the ring cavity; 7. a sealing layer; 8. an inner liner; 9. and (6) a shoulder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1-5, a novel graphite end socket assembly comprises an expansion joint 1, wherein the upper and lower ends of the expansion joint 1 are respectively provided with a connecting flange 2, the upper and lower ends of the expansion joint 1 are respectively connected with graphite equipment and an external pipeline through the connecting flanges 2, the upper and lower sides inside the expansion joint 1 are respectively provided with a lining sleeve 3, the lining sleeve 3 is in a cylindrical structure, the inner annular walls of the upper and lower lining sleeves 3 are respectively provided with a first graphite layer 4 and a second graphite layer 5, the first graphite layer 4 and the second graphite layer 5 are both in a cylindrical structure, moreover, both ends of the first graphite layer 4 and the second graphite layer 5 are flush with both ends of the corresponding lining sleeve 3, the top surface of the second graphite layer 5 is provided with a hidden ring cavity 6 along the circumferential direction in a circle, as shown in fig. 2, the bottom end of the first graphite layer 4 is movably inserted into the hidden ring cavity 6, so that the first graphite layer 4 and the second graphite layer 5 are in sliding fit with each other.

On the basis of the above embodiment, the first graphite layer 4 is a two-stage structure composed of an upper ring part 401 and a lower ring part 402, as shown in fig. 2, the thickness of the lower ring part 402 is thinner than that of the upper ring part 401, and the lower ring part 402 and the lining sleeve 3 attached to the outside of the lower ring part 402 are movably inserted in the hidden ring cavity 6; moreover, the inner ring wall and the outer ring wall inside the hidden ring cavity 6 are respectively provided with an annular sealing layer 7 in a fitting manner, the two sealing layers 7 are respectively attached to the inner surface of the lower ring part 402 and the outer surface of the lining sleeve 3, and specifically, the sealing layers 7 are made of rubber materials; under the effect of inside lining sleeve 3, first graphite layer 4, second graphite layer 5 and sealing layer 7, can effectively keep apart the inside medium of graphite equipment and expansion joint 1, avoid expansion joint 1 to be corroded, consequently can prolong the life of head subassembly.

On the basis of above embodiment, both sides all are equipped with about the inside of expansion joint 1 and are annular inner liner 8, inner liner 8 adopts stainless steel, outer rampart of inner liner 8 and the laminating of the inner ring wall of expansion joint 1 and fixed connection, it has shoulder 9 to follow the circumference bulge shaping on two inner liner sleeve 3's the periphery wall, shoulder 9 and inner liner sleeve 3 be the integrated into one piece structure promptly, two shoulder 9 respectively with two inner liner 8 fixed connection, specifically, be equipped with the internal thread on the internal perisporium of inner liner 8, be equipped with the external screw thread on shoulder 9's the periphery wall, inner liner 8 passes through threaded connection with shoulder 9, inner liner 3 fixes the inside at expansion joint 1 through threaded connection's mode promptly.

This embodiment is in concrete use, and two flange 2 link to each other with graphite equipment and external pipeline respectively about utilizing, and when the medium in graphite equipment and the external pipeline had corrosivity, because first graphite layer 4, second graphite layer 5's effect can effectively separate corrosive medium and expansion joint 1 to avoid expansion joint 1 to be corroded, prolonged the life of this graphite head subassembly. In addition, because the first graphite layer 4 and the second graphite layer 5 are in sliding fit, the first graphite layer 4 and the second graphite layer 5 can slide relatively along with the expansion of the expansion joint 1, so that the first graphite layer 4 and the second graphite layer 5 are prevented from being damaged under the stress action.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel graphite head subassembly, includes expansion joint (1), the upper and lower both ends of expansion joint (1) all are equipped with flange (2), the upper and lower both ends of expansion joint (1) are passed through flange (2) and are linked to each other its characterized in that with graphite equipment and outside pipeline respectively: the inside upper and lower both sides of expansion joint (1) all are equipped with inside lining sleeve (3), two from top to bottom be equipped with first graphite layer (4) and second graphite layer (5) on the interior rampart of inside lining sleeve (3) respectively, first graphite layer (4) and second graphite layer (5) all are the tubular structure, the top surface of second graphite layer (5) has been seted up along the circumference round and has been hidden ring chamber (6), the bottom activity of first graphite layer (4) is inserted extremely hide in ring chamber (6).

2. The novel graphite head assembly of claim 1, wherein: the first graphite layer (4) is of a two-section structure consisting of an upper annular portion (401) and a lower annular portion (402), the thickness of the lower annular portion (402) is thinner than that of the upper annular portion (401), and the lower annular portion (402) and the lining sleeve (3) attached to the outer portion of the lower annular portion (402) are movably inserted into the hidden annular cavity (6).

3. The novel graphite head assembly of claim 2, wherein: annular sealing layers (7) are respectively attached to the inner annular wall and the outer annular wall inside the hidden annular cavity (6), and the two sealing layers (7) are respectively attached to the inner surface of the lower annular part (402) and the outer surface of the lining sleeve (3).

4. The novel graphite head assembly of claim 3, wherein: the sealing layer (7) is made of rubber.

5. The novel graphite head assembly of claim 1, wherein: annular inner lining rings (8) are arranged on the upper side and the lower side of the interior of the expansion joint (1), shoulders (9) are formed on the outer peripheral walls of the two lining sleeves (3) in a protruding mode along the circumferential direction, and the two shoulders (9) are fixedly connected with the two inner lining rings (8) respectively.

6. The novel graphite head assembly of claim 5, wherein: the inner circumferential wall of the inner lining ring (8) is provided with internal threads, the outer circumferential wall of the shoulder (9) is provided with external threads, and the inner lining ring (8) is in threaded connection with the shoulder (9).