Pipeline fastener special for high-temperature and high-pressure environment

Abstract

The utility model relates to a special pipeline fastener for a high-temperature and high-pressure environment, which belongs to the technical field of pipeline fasteners and comprises two pipelines, flanges are fixed on the outer surfaces of the two pipelines, sealing rings are inserted into the two pipelines, connecting rings are fixed on the outer surfaces of the sealing rings, and the connecting rings are fixed on the outer surfaces of the connecting rings. Bolts are arranged in the peripheries of the two flanges, fastening nuts are in threaded connection with the left ends and the right ends of the outer surfaces of the bolts, and damping assemblies are arranged at the lower ends of the two flanges. And the damping assembly comprises a telescopic block fixed to the lower ends of the two flanges, the outer surface of the telescopic block is slidably connected with a damping block, and mounting blocks are fixed to the front end and the rear end of the damping block correspondingly. According to the pipeline fastener special for the high-temperature and high-pressure environment, by arranging the damping assembly, the damping effect on the pipeline connecting end and the fastener can be achieved, the vibration sense sensed by the pipeline connecting end and the fastener is reduced, and the phenomenon that the joint of the fastener and the wall is subjected to high-frequency oscillation, and consequently the wall is damaged and the pipeline is fractured is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline fasteners, in particular to a pipeline fastener specially used in high-temperature and high-pressure environments. Background Art

[0002] Pipe fasteners are components used to fasten two pipes together or fix pipes. They are usually used in construction engineering, machinery manufacturing, automobile manufacturing, petrochemical industry and other fields. Flanges, bolts and nuts are usually used to fasten pipes.

[0003] A Chinese patent (Announcement No.: CN 204254090 U) discloses a flange structure for high-temperature and high-pressure pipeline connection. A sealing ring made of a nickel-based high-temperature alloy material can ensure the sealing of the flange when used in a high-temperature and high-pressure environment. However, due to the pulsating force transmitted inside the pipeline and the self-vibration frequency and pulsating force frequency of the pipeline, the pipeline connection end will vibrate under a high-pressure environment. However, the above-mentioned document only restricts the pipeline, causing the pipeline to be vibrated. At the same time, since the fastener transmits the vibration force to the wall, the connection between the fastener and the wall is affected by the high-frequency vibration effect, thereby damaging the wall. During long-term use, the fastening degree between the fastener and the wall is gradually reduced, which eventually causes the fastener to separate from the wall, resulting in a lack of support for the pipeline and an increase in the pipeline breakage rate. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a special pipeline fastener for high temperature and high pressure environments, which has the advantages of good shock absorption and solves the problem of poor shock absorption.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special pipeline fastener for high temperature and high pressure environment, comprising two pipelines, flanges are fixed on the outer surfaces of the two pipelines, sealing rings are inserted inside the two pipelines, a connecting ring is fixed on the outer surface of the sealing ring, bolts are arranged inside the periphery of the two flanges, fastening nuts are threadedly connected at the left and right ends of the outer surface of the bolts, and shock absorbing components are arranged at the lower ends of the two flanges;

[0006] The shock absorbing assembly includes a telescopic block fixed to the lower ends of the two flanges, the outer surface of the telescopic block is slidably connected to the shock absorbing block, the front and rear ends of the shock absorbing block are fixed with mounting blocks, and the shock absorbing assembly also includes a buffer structure arranged inside the two shock absorbing blocks.

[0007] Furthermore, the shock absorbing block is a hollow rectangle, and a through hole is provided at the top of the shock absorbing block for allowing the telescopic block to move in or out of the inside.

[0008] Furthermore, the buffer structure includes a buffer spring fixed to the front and rear walls of the inner cavity of the two shock-absorbing blocks, and a pressure block is fixed on the opposite side of the front and rear buffer springs. The internal rotation of the pressure block is connected to a support rod. The buffer structure also includes a damper fixed to the bottom of the inner cavity of the two shock-absorbing blocks, and the buffer structure also includes a connecting structure arranged on the opposite side of the front and rear groups of pressure blocks.

[0009] Furthermore, the support rod is fixed to the left and right walls of the inner cavity of the shock absorbing block, a rotation hole is provided on the right side of the pressing block, and the support rod is rotatably connected to the inside of the rotation hole.

[0010] Furthermore, the top ends of the two dampers are fixed to the lower end of the telescopic block.

[0011] Furthermore, the connection structure includes a concave block that is slidably connected to a wall relative to the front and rear groups of pressure blocks, and the connection structure also includes two push rods hingedly connected at the lower ends of the two telescopic blocks, a connecting rod fixed to the left and right walls on the inner side of the concave block, and a slider fixed to the opposite sides of the front and rear groups of concave blocks.

[0012] Furthermore, a slide groove for the slider to slide inside is provided on the opposite sides of the front and rear groups of the pressing blocks, and the slider and the slide groove are both in a T shape.

[0013] Furthermore, a connecting hole is provided on the right side of the push rod for allowing the push rod to rotate on the outer surface of the connecting rod.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The special pipe fastener for high temperature and high pressure environment can play a shock absorbing role on the connection end and fastener of the pipe by being provided with a shock absorbing component, so as to reduce the vibration induced by the connection end of the pipe and the fastener, and reduce the high-frequency oscillation of the connection between the fastener and the wall, thereby reducing the phenomenon of wall damage and pipe rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the flange and the telescopic block of the utility model;

[0018] Figure 3 It is a side view structural diagram of the telescopic block and the pressing block of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the concave block and the sliding block of the utility model.

[0020] In the figure: 1 pipeline, 2 flange, 3 sealing ring, 4 connecting ring, 5 bolt, 6 fastening nut, 61 telescopic block, 62 shock absorbing block, 63 mounting block, 64 push rod, 65 concave block, 66 connecting rod, 67 slider, 68 pressure block, 69 damper, 610 support rod, 611 buffer spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 2 A special pipeline fastener for high temperature and high pressure environment in this embodiment includes two pipelines 1, flanges 2 are fixed on the outer surfaces of the two pipelines 1, and fastening holes are opened around the right side of the flange 2, sealing rings 3 are inserted into the inside of the two pipelines 1, and a connecting ring 4 is fixed on the outer surface of the sealing ring 3, bolts 5 are arranged inside the four sides of the two flanges 2, and fastening nuts 6 are threadedly connected to the left and right ends of the outer surface of the bolts 5, and shock absorbing components are arranged at the lower ends of the two flanges 2.

[0023] It is also noted that insertion holes are provided around the right side of the connecting ring 4, so that the bolts 5 pass through the fastening holes of the flange 2, the insertion holes and the fastening holes of the flange 2 on the other side in sequence, so that the connecting ring 4 can be fixed between the two flanges 2, so that the sealing ring 3 can be stably fixed in the two pipes 1.

[0024] See also Figures 2 to 4 The shock absorbing assembly in this embodiment includes a telescopic block 61 fixed to the lower ends of the two flanges 2, and a shock absorbing block 62 is slidably connected to the outer surface of the telescopic block 61. Mounting blocks 63 are fixed to the front and rear ends of the shock absorbing block 62, and a mounting hole is opened at the top of the mounting block 63. The internal thread of the mounting hole is connected with a fastening screw so that the shock absorbing block 62 can be connected and installed with the mounting surface. The shock absorbing assembly also includes a buffer structure arranged inside the two shock absorbing blocks 62.

[0025] The shock absorbing block 62 is a hollow rectangle, and a through hole is provided at the top of the shock absorbing block 62 for the telescopic block 61 to move in or out of the inside, so that the telescopic block 61 can move in or out of the shock absorbing block 62, making it easier for the telescopic block 61 to squeeze the buffer structure.

[0026] See also Figures 3 to 4The buffer structure in this embodiment includes a buffer spring 611 fixed to the front and rear walls of the inner cavity of the two shock-absorbing blocks 62, and a pressure block 68 is fixed on the opposite side of the front and rear buffer springs 611. The internal rotation of the pressure block 68 is connected to the support rod 610. The buffer structure also includes a damper 69 fixed to the bottom of the inner cavity of the two shock-absorbing blocks 62, and the buffer structure also includes a connecting structure arranged on the opposite side of the front and rear groups of pressure blocks 68.

[0027] Secondly, the support rod 610 is fixed to the left and right walls of the inner cavity of the shock-absorbing block 62, and a rotating hole is opened on the right side of the pressure block 68. The support rod 610 is rotatably connected to the inside of the rotating hole, so that the pressure block 68 can rotate on the outer surface of the support rod 610 through the rotating hole, so that the pressure block 68 can be stably flipped forward and backward in the shock-absorbing block 62.

[0028] Furthermore, the top ends of the two dampers 69 are fixed to the lower end of the telescopic block 61 , so that the telescopic block 61 can squeeze the dampers 69 .

[0029] See also Figures 3 to 4 The connection structure in this embodiment includes a concave block 65 slidably connected to a wall relative to the front and rear groups of pressure blocks 68, and the connection structure also includes two push rods 64 hingedly connected at the lower ends of the two telescopic blocks 61, a connecting rod 66 fixed to the left and right walls inside the concave block 65, and a slider 67 is fixed on the opposite sides of the front and rear groups of concave blocks 65.

[0030] At the same time, a slide groove for the slider 67 to slide inside is provided on the opposite side of the front and rear groups of pressure blocks 68. The slider 67 and the slide groove are both T-shaped, so that the slider 67 can slide on the pressure block 68 through the slide groove, so that the concave block 65 can slide stably on the surface of the pressure block 68.

[0031] In addition, a connecting hole is provided on the right side of the push rod 64 for allowing it to rotate on the outer surface of the connecting rod 66, so that the push rod 64 can be connected to the concave block 65 through the connecting rod 66, so that the push rod 64 can push the pressing block 68 to rotate.

[0032] It should be noted that the damper 69 and the electronic components mentioned in the text are well known to the public in the prior art, so their working principles will not be described in detail in the text.

[0033] The working principle of the above embodiment is:

[0034] During use, when the flange 2 is subjected to vibration, it drives the telescopic block 61 to move downward, so that the telescopic block 61 gradually moves into the shock-absorbing block 62, so that the telescopic block 61 can squeeze the two dampers 69, and at the same time, the telescopic block 61 squeezes the two push rods 64, so that the two push rods 64 can pull the concave block 65 from the top end of the surface of the pressure block 68 to the bottom end when rotating on the outer surface of the connecting rod 66, so that the slider 67 moves to the bottom of the slide groove of the pressure block 68, and the front and rear concave blocks 65 can push the front and rear pressure blocks 68 to flip back to each other through the slider 67, so that the front and rear pressure blocks 68 squeeze the buffer spring 611, thereby providing a buffer for the connection end of the pipeline 1, so as to reduce the vibration sensed at the connection end of the pipeline 1.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline fastener for high temperature and high pressure environment, comprising two pipelines (1), characterized in that: The outer surfaces of the two pipes (1) are fixed with flanges (2), the interiors of the two pipes (1) are plugged with sealing rings (3), the outer surfaces of the sealing rings (3) are fixed with connecting rings (4), the interiors of the two flanges (2) are provided with bolts (5) all around, the left and right ends of the outer surfaces of the bolts (5) are threadedly connected with fastening nuts (6), and the lower ends of the two flanges (2) are provided with shock absorbing components; The shock absorbing assembly comprises a telescopic block (61) fixed to the lower ends of the two flanges (2); a shock absorbing block (62) is slidably connected to the outer surface of the telescopic block (61); mounting blocks (63) are fixed to the front and rear ends of the shock absorbing block (62); and the shock absorbing assembly further comprises a buffer structure arranged inside the two shock absorbing blocks (62).

2. The special pipeline fastener for high temperature and high pressure environment according to claim 1, characterized in that: The shock absorbing block (62) is a rectangular shape with a hollow interior, and a through hole is provided at the top of the shock absorbing block (62) for allowing the telescopic block (61) to move in or out of the interior.

3. The special pipeline fastener for high temperature and high pressure environment according to claim 1, characterized in that: The buffer structure includes a buffer spring (611) fixed to the front and rear walls of the inner cavity of the two shock-absorbing blocks (62), a pressure block (68) is fixed on the opposite side of the front and rear buffer springs (611), and the inner part of the pressure block (68) is rotatably connected to a support rod (610). The buffer structure also includes a damper (69) fixed to the bottom of the inner cavity of the two shock-absorbing blocks (62), and the buffer structure also includes a connection structure arranged on the opposite side of the two groups of pressure blocks (68) at the front and rear.

4. The special pipeline fastener for high temperature and high pressure environment according to claim 3, characterized in that: The support rod (610) is fixed to the left and right walls of the inner cavity of the shock absorbing block (62); a rotation hole is provided on the right side of the pressing block (68); and the support rod (610) is rotatably connected to the inside of the rotation hole.

5. The special pipeline fastener for high temperature and high pressure environment according to claim 3, characterized in that: The top ends of the two dampers (69) are fixed to the lower end of the telescopic block (61).

6. The special pipeline fastener for high temperature and high pressure environment according to claim 3, characterized in that: The connection structure comprises a concave block (65) slidably connected to a wall relative to the front and rear groups of pressure blocks (68), two push rods (64) hingedly connected to the lower ends of the two telescopic blocks (61), a connecting rod (66) fixed to the left and right walls inside the concave block (65), and a sliding block (67) fixed to the opposite sides of the front and rear groups of concave blocks (65).

7. The special pipeline fastener for high temperature and high pressure environment according to claim 6, characterized in that: The opposite sides of the front and rear groups of the pressing blocks (68) are provided with a sliding groove for the sliding block (67) to slide inside the sliding groove, and the sliding block (67) and the sliding groove are both in a T shape.

8. The special pipeline fastener for high temperature and high pressure environment according to claim 6, characterized in that: The right side of the push rod (64) is provided with a connecting hole for allowing the push rod (64) to rotate on the outer surface of the connecting rod (66).

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