High-temperature-resistant mechanical sealing element

Abstract

The utility model discloses a high-temperature-resistant mechanical sealing element which comprises a first pipeline and a second pipeline, a sealing element body is arranged between the first pipeline and the second pipeline, grooves are formed in the two ends of the sealing element body, telescopic pipes are connected into the grooves in a threaded mode, and the two telescopic pipes extend out of the grooves. A plurality of annularly-distributed anti-skid blocks are fixedly arranged on the outer walls of the ends, away from the grooves, of the telescopic pipes, first sealing rings are fixedly arranged at the ends, away from the grooves, of the two telescopic pipes, second sealing rings are fixedly arranged at the ends, close to the sealing element body, of the first pipeline and the second pipeline, and the first sealing rings abut against the second sealing rings. Fastening assemblies used for fixing are arranged on the outer sides of the first pipeline and the second pipeline. By arranging the telescopic pipe capable of being adjusted in a telescopic mode, the sealing piece body is matched with the first pipeline and the second pipeline, the length adjusting function of the sealing piece is achieved, the sealing piece can be suitable for more places, the pipelines do not need to be cut, time and labor are saved, and the working efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical sealing technical field, concretely relates to a high temperature resistant mechanical sealing. BACKGROUND

[0002] Mechanical seal is the device that prevents fluid leakage by at least one pair of end face perpendicular to the rotation axis under the action of fluid pressure and compensation mechanism elastic force (or magnetic force) and the cooperation of auxiliary seal, and mechanical sealing mainly has four components of main sealing, auxiliary sealing, compression and transmission.

[0003] The existing high temperature resistant mechanical sealing piece when butting two pipes, most do not have length adjusting function, can not adjust the sealing piece length according to actual demand, when the pipe length is longer or insufficient, it is difficult to make the mechanical sealing piece and the pipe match, leading to the pipe may need to be cut or welded, it is more troublesome. UTILITY MODEL CONTENTS

[0004] The utility model discloses a high temperature resistant mechanical sealing piece to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides a high temperature resistant mechanical sealing piece, including first pipeline and second pipeline, be provided with sealing piece main body between first pipeline and second pipeline, recess is set up in both ends of sealing piece main body, the telescopic pipe is connected in recess, two telescopic pipes all extend recess, and the first sealing ring is fixedly arranged in the end of two telescopic pipes away from recess, the first pipeline and second pipeline are fixedly arranged with the second sealing ring in the end close to sealing piece main body, the first sealing ring is in contact with the second sealing ring, and the fastening assembly for fixing is arranged on the outside of first pipeline and second pipeline.

[0006] As a further improvement of the technical scheme, the sealing piece main body includes a base body, a ceramic layer is provided on the outside of the base body, a high-temperature-resistant layer is provided on the outside of the ceramic layer, and an anti-rust layer is provided on the outside of the high-temperature-resistant layer.

[0007] As a further improvement of the technical scheme, a connecting pipe is fixedly arranged on the inside of the sealing piece main body, the connecting pipe is inserted into the first pipeline and the second pipeline at both ends respectively, and the connecting pipe is attached to the inner walls of the first pipeline and the second pipeline.

[0008] As a further improvement of the technical solution, the fastening assembly comprises a first hoop and a second hoop, the first hoop is fixedly arranged on the outer wall of the first pipeline, the second hoop is fixedly arranged on the outer wall of the second pipeline, two screw rods are arranged on the hoop side of the first hoop, two connecting seats are fixedly arranged on the hoop side of the second hoop, the connecting seat is provided with an opening matched with the screw rod, and the screw rod is threadedly connected with a fastening nut in contact with the connecting seat at one end penetrating the opening.

[0009] As a further improvement of the technical solution, the first hoop and the second hoop each comprise a first half hoop and a second half hoop, the first half hoop and the second half hoop are embraced on the outer walls of the first pipeline and the second pipeline, and the first half hoop and the second half hoop are fixed by bolt connection.

[0010] As a further improvement of the technical solution, the telescopic pipe is fixedly provided with a plurality of annularly distributed anti-skid blocks on the outer wall away from the one end of the groove.

[0011] Compared with the prior art, the utility model has the beneficial effects of:

[0012] 1. By setting the telescopic pipe, the length adjustment function of the sealing element is realized by setting the telescopic pipe, the sealing element body is matched with the first pipeline and the second pipeline, it can be applied to more places without cutting the pipeline, time and labor are saved, and the working efficiency is effectively improved.

[0013] 2. By setting the fastening assembly, rotating the screw rod, placing the screw rod on the connecting seat, and tightening the fastening nut, the first pipeline, the second pipeline and the sealing element body are fixed, and the installation and fixation are very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the sealing element body of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the sealing element body of the utility model.

[0018] The meanings of the various reference numerals in the drawings are as follows:

[0019] 1, first pipeline; 2, second pipeline; 3, sealing element main body; 4, anti-skid block; 5, telescopic pipe; 6, first sealing ring; 7, second sealing ring; 8, connecting pipe; 9, first hoop; 10, second hoop; 11, screw rod; 12, connecting seat; 13, fastening nut; 14, bolt; 301, base body; 302, ceramic layer; 303, high-temperature-resistant layer; 304, anti-corrosion layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in 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.

[0021] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "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 positional 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.

[0022] Please refer to Figures 1-4As shown, the utility model provides a kind of high-temperature-resistant mechanical seal, including first pipeline 1 and second pipeline 2, and first pipeline 1 and second pipeline 2 between being provided with seal main body 3, and the inside of seal main body 3 is fixedly provided with connecting pipe 8, and connecting pipe 8 both ends are inserted into first pipeline 1 and second pipeline 2 respectively, and connecting pipe 8 is attached with the inner wall of first pipeline 1 and second pipeline 2, and when first pipeline 1 and second pipeline 2 butt joint, seal main body 3 is placed between first pipeline 1 and second pipeline 2, and the both ends of connecting pipe 8 are inserted into first pipeline 1 and second pipeline 2 respectively, and seal main body 3 is positioned.

[0023] First pipeline 1 and second pipeline 2 outside are provided with fastening assembly for fixing, and fastening assembly includes first hoop 9 and second hoop 10, and first hoop 9 is fixedly arranged on the outer wall of first pipeline 1, and second hoop 10 is fixedly arranged on the outer wall of second pipeline 2, and two screw rods 11 are hingedly arranged on the ring side of first hoop 9, and two connecting seats 12 are fixedly arranged on the ring side of second hoop 10, and opening is formed on connecting seat 12 and matched with screw rod 11, and the end of screw rod 11 is screwed with fastening nut 13 and connected with connecting seat 12, by installing first hoop 9 and second hoop 10, and then rotating screw rod 11, screw rod 11 is placed on connecting seat 12, and first pipeline 1, second pipeline 2 and seal main body 3 are fixed by tightening fastening nut 13.

[0024] First hoop 9 and second hoop 10 include first half ring and second half ring, and first half ring and second half ring are embraced on the outer wall of first pipeline 1 and second pipeline 2, and first half ring and second half ring are connected and fixed by bolt 14, and first hoop 9 and second hoop 10 are installed by setting first half ring and second half ring.

[0025] The sealing body 3 comprises a base body 301, the outer side of the base body 301 is provided with a ceramic layer 302, the outer side of the ceramic layer 302 is provided with a high-temperature-resistant layer 303, the outer side of the high-temperature-resistant layer 303 is provided with an anti-rust layer 304, and the mutual matching between the base body 301, the ceramic layer 302, the high-temperature-resistant layer 303 and the anti-rust layer 304 makes the sealing body 3 have good high-temperature resistance and anti-rust effect, thereby guaranteeing the quality of products.

[0026] The specific working principle of the utility model is as follows: when the first pipeline 1 and the second pipeline 2 are connected, the sealing body 3 is arranged between the first pipeline 1 and the second pipeline 2, the two ends of the connecting pipe 8 are inserted into the first pipeline 1 and the second pipeline 2 respectively, the sealing body 3 is positioned, when the length of the sealing body 3 is not suitable for the distance between the first pipeline 1 and the second pipeline 2, the telescopic pipe 5 is rotated to move the telescopic pipe 5 into or out of the groove, the length of the telescopic pipe 5 is adjusted, the two telescopic pipes 5 are respectively abutted against the first pipeline 1 and the second pipeline 2, the first sealing ring 6 and the second sealing ring 7 are abutted tightly, and sealing is realized, the telescopic and adjustable telescopic pipe 5 is arranged, the sealing body 3 is matched with the first pipeline 1 and the second pipeline 2, and the length adjustment function of the sealing body is realized, so that the sealing body can be applied to more places.

[0027] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-temperature resistant mechanical seal, comprising a first pipe (1) and a second pipe (2), wherein a sealing body (3) is disposed between the first pipe (1) and the second pipe (2), characterized in that: The sealing body (3) has grooves at both ends, and telescopic tubes (5) are threaded into the grooves. Both telescopic tubes (5) extend out of the grooves. A first sealing ring (6) is fixedly installed at the end of the two telescopic tubes (5) away from the groove. A second sealing ring (7) is fixedly installed at the end of the first pipe (1) and the second pipe (2) near the sealing body (3). The first sealing ring (6) and the second sealing ring (7) abut against each other. Fastening components for fixing are provided on the outside of the first pipe (1) and the second pipe (2).

2. The high-temperature resistant mechanical seal according to claim 1, characterized in that: The sealing body (3) includes a substrate (301), a ceramic layer (302) is provided on the outside of the substrate (301), a high temperature resistant layer (303) is provided on the outside of the ceramic layer (302), and an anti-corrosion layer (304) is provided on the outside of the high temperature resistant layer (303).

3. The high-temperature resistant mechanical seal according to claim 1, characterized in that: A connecting pipe (8) is fixedly installed on the inner side of the sealing body (3). The two ends of the connecting pipe (8) are respectively inserted into the first pipe (1) and the second pipe (2), and the connecting pipe (8) is in contact with the inner wall of the first pipe (1) and the second pipe (2).

4. A high-temperature resistant mechanical seal according to claim 1, characterized in that: The fastening assembly includes a first clamp (9) and a second clamp (10). The first clamp (9) is fixedly installed on the outer wall of the first pipe (1), and the second clamp (10) is fixedly installed on the outer wall of the second pipe (2). The first clamp (9) is hinged to two screws (11) on its circumferential side, and the second clamp (10) is fixedly installed to two connecting seats (12) on its circumferential side. The connecting seats (12) have openings that are adapted to the screws (11), and the screws (11) are threaded through the openings to a fastening nut (13) that abuts against the connecting seats (12).

5. A high-temperature resistant mechanical seal according to claim 4, characterized in that: The first clamp (9) and the second clamp (10) each include a first half ring and a second half ring. The first half ring and the second half ring are fitted around the outer wall of the first pipe (1) and the second pipe (2). The first half ring and the second half ring are connected and fixed by bolts (14).

6. A high-temperature resistant mechanical seal according to claim 1, characterized in that: The telescopic tube (5) has multiple annularly distributed anti-slip blocks (4) fixedly installed on the outer wall of the end away from the groove.

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