CN210950383U

CN210950383U - High-temperature metal expansion joint

Info

Publication number: CN210950383U
Application number: CN201921841838.8U
Authority: CN
Inventors: 华顺鑫; 华建春
Original assignee: Wuxi Huabo Metal Corrugated Hose Co ltd
Current assignee: Wuxi Huabo Metal Corrugated Hose Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-07-07
Anticipated expiration: 2029-10-30

Abstract

The utility model belongs to the technical field of expansion joints, in particular to a high-temperature metal expansion joint, which comprises an expansion joint body, wherein the expansion joint body comprises a first expansion joint and a second expansion joint, an upper connecting flange and a lower connecting flange are respectively fixed at one end, away from each other, of the first expansion joint and the second expansion joint, two connecting blocks which are symmetrically distributed are respectively fixed on the outer side surfaces of the upper connecting flange and the lower connecting flange, a double-end screw is connected between the two connecting blocks, and adjusting components for adjusting the angles of the first expansion joint and the second expansion joint are arranged inside the other two connecting blocks; the utility model discloses an expansion joint, through the angle fine setting subassembly that sets up, when pipe-line system was gone into in the expansion joint installation, usable this angle fine setting subassembly finely tuned the installation angle of expansion joint, guaranteed the accuracy of axial atress, eliminated the component, avoided having the component to cause the problem that the expansion joint bursts, prolonged the life of expansion joint.

Description

High-temperature metal expansion joint

Technical Field

The utility model belongs to the technical field of the expansion joint, concretely relates to high temperature metal expansion joint.

Background

The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on a fixed tube-plate heat exchanger shell has large axial flexibility and is easy to deform, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell, avoiding strength damage, instability damage and tube pull-off damage, and having more types of expansion joints, commonly used structures such as wave shapes, ring plate welding, shell clamping and the like, wherein the wave-shaped expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

The expansion joint of original two-section formula closes the whole of connecting for screwing in through the screw thread usually, when inserting pipe-line system, is connected with pipe-line system through the flange at both ends respectively, but can not finely tune the access angle of expansion joint when the installation, is difficult to guarantee the accuracy of inserting, and when the later stage was used, there was the component in axial atress, leads to the expansion joint to burst easily.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a high temperature metal expansion joint has simple to operate, the installation is stable, long service life and be convenient for adjust characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature metal expansion joint comprises an expansion joint body, wherein the expansion joint body comprises a first expansion joint and a second expansion joint, the first expansion joint and the second expansion joint are connected in a screwing mode through threads, an upper connecting flange and a lower connecting flange are respectively fixed at one ends, away from each other, of the first expansion joint and the second expansion joint, two connecting blocks which are symmetrically distributed are fixed on the outer side surfaces of the upper connecting flange and the lower connecting flange, a double-headed screw is connected between the two connecting blocks, adjusting assemblies for adjusting the angles of the first expansion joint and the second expansion joint are installed on the inner sides of the other two connecting blocks, and each adjusting assembly comprises an adjusting screw and an adjusting block; and a stabilizing ring is sleeved outside the interface of the first expansion joint and the second expansion joint.

As an optimal technical scheme of the utility model, the regulating block is fixed respectively an expansion joint with No. two expansion joint's outer wall, be fixed with a support bar and No. two support bars of relative distribution between the opposite face of connecting block, adjusting screw passes through bearing support frame and installs No. one the support bar with No. two support bars are inboard, and set up the confession on the regulating block the screw hole that adjusting screw runs through, adjusting screw pass through the screw hole with the regulating block screw thread closes soon and links to each other.

As an optimal technical scheme of the utility model, adjusting screw's one end is run through No. two support bars, just adjusting screw's the end of stretching out is served and is installed the handle.

As a preferred technical scheme of the utility model, an expansion joint with positioning groove has been seted up respectively to the outer wall of No. two expansion joint links, the inner wall of stabilizing ring be fixed with positioning groove corresponding location is protruding.

As an optimized technical scheme of the utility model, the location protruding with positioning groove is ring shape structure.

As a preferred technical solution of the present invention, the stabilizing ring includes a first half ring and a second half ring, one end of the first half ring and one end of the second half ring are fixed ends, and the other end is a free end; the fixed ends of the first half ring and the second half ring are connected through a hinge, and the free ends of the first half ring and the second half ring are connected through a bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the expansion joint of the utility model has the advantages that through the arranged angle fine adjustment component, when the expansion joint is installed in a pipeline system, the installation angle of the expansion joint can be finely adjusted by utilizing the angle fine adjustment component, the accuracy of axial stress is ensured, the component force is eliminated, the problem that the expansion joint bursts due to the component force is avoided, and the service life of the expansion joint is prolonged; the combination of the stabilizing ring, the positioning protrusion and the positioning groove further improves the stability of the expansion joint connection.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic structural view of the front side of the expansion joint body in the present invention;

fig. 4 is a schematic view of a partially enlarged structure at the interface of the expansion joint body of the present invention;

FIG. 5 is a schematic side view of a stabilizer ring according to the present invention;

fig. 6 is a schematic top view of the expansion joint body of the present invention;

in the figure: 1. an expansion joint body; 2. an upper connecting flange; 3. a lower connecting flange; 4. a double-ended screw; 5. connecting blocks; 6. a first expansion joint; 7. a second expansion joint; 8. a stabilizing ring; 9. positioning the projection; 10. a positioning groove; 11. a first half ring; 12. a second half ring; 13. a first support bar; 14. a second support bar; 15. an adjusting block; 16. adjusting the screw rod; 17. a threaded hole; 18. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-6, the present invention provides the following technical solutions: a high-temperature metal expansion joint comprises an expansion joint body 1, wherein the expansion joint body 1 comprises a first expansion joint 6 and a second expansion joint 7, and the first expansion joint 6 and the second expansion joint 7 are connected by screw thread, the expansion joint body 1 of the utility model is a metal corrugated pipe expansion joint, the corrugated pipe is made of SUS304, the wall thickness is 2.0mm, the axial compensation amount is 53mm, an upper connecting flange 2 and a lower connecting flange 3 are respectively fixed at the ends of the first expansion joint 6 and the second expansion joint 7 which are far away from each other, two symmetrically distributed connecting blocks 5 are fixed on the outer side surfaces of the upper connecting flange 2 and the lower connecting flange 3, the double-end screw rods 4 are connected between the two connecting blocks 5, the inner sides of the other two connecting blocks 5 are provided with adjusting components for adjusting the angles of the first expansion joint 6 and the second expansion joint 7, and the adjusting components comprise adjusting screw rods 16 and adjusting blocks 15; outside the cover is equipped with stabilizing ring 8 in the kneck of expansion joint 6 and No. two expansion joints 7, shown by figure 1, two nuts of locating at connecting block 5 both sides are closed soon respectively at the both ends of double-end screw 4 for stabilize double-end screw 4, guarantee the stability that expansion joint 6 and No. two expansion joints 7 are connected, shown by figure 4, stabilizing ring 8 embraces the outside at expansion joint 6 and No. two expansion joints 7 junction, can further improve the stability that expansion joint 6 and No. two expansion joints 7 are connected.

Specifically, according to fig. 1 and fig. 6, in this embodiment, the adjusting block 15 is fixed on the outer walls of the first expansion joint 6 and the second expansion joint 7, the first supporting bar 13 and the second supporting bar 14 are fixed between the opposite surfaces of the connecting block 5, the adjusting screw 16 is mounted inside the first supporting bar 13 and the second supporting bar 14 through a bearing support frame, and a threaded hole 17 for the adjusting screw 16 to pass through is formed in the adjusting block 15, the adjusting screw 16 is screwed with the adjusting block 15 through the threaded hole 17, the mounting position of the adjusting block 15 is close to the end of the first expansion joint 6 connected to the second expansion joint 7, when the expansion joint body 1 is connected to the pipeline system, the first expansion joint 6 or the second expansion joint 7 is connected first, for example, the second expansion joint 7 is connected to the pipeline system by using the lower connecting flange 3, and the adjusting component on the first expansion joint 6 should be adjusted, the adjusting screw 16 is rotated, and the first expansion joint 6 rotates for a certain angle around the double-head screw 4 by utilizing the thread screwing relation of the adjusting screw 16 and the threaded hole 17, so that the fine adjustment of the installation angle of the first expansion joint 6 is realized, the installation accuracy is ensured, and the axial stress deviation is avoided.

Specifically, according to fig. 6, in this embodiment, one end of the adjusting screw 16 penetrates through the support bar number two 14, and a handle 18 is mounted on the extending end of the adjusting screw 16, and the handle 18 is used for manually controlling the adjusting screw 16 to rotate, so that the operation is more convenient and labor-saving.

Specifically, according to fig. 4, in this embodiment, the outer wall of the connection end of the first expansion joint 6 and the second expansion joint 7 is respectively provided with a positioning groove 10, the inner wall of the stabilizing ring 8 is fixed with a positioning protrusion 9 corresponding to the positioning groove 10, after the first expansion joint 6 and the second expansion joint 7 are screwed and connected, the stabilizing ring 8 is sleeved on the first expansion joint 6, the positioning protrusion 9 of the stabilizing ring 8 is respectively embedded into the positioning groove 10 of the outer wall of the first expansion joint 6 and the second expansion joint 7, the positioning protrusion 9 and the positioning groove 10 form a clamping structure, and the connection stability of the first expansion joint 6 and the second expansion joint 7 is further ensured.

Specifically, as shown in fig. 4 and 5, in this embodiment, the positioning protrusions 9 and the positioning grooves 10 are both circular ring structures, and the positioning protrusions 9 and the positioning grooves 10 arranged along the circumferential direction have a better stabilizing effect.

Specifically, according to fig. 5, in the present embodiment, the stabilizing ring 8 includes a first half ring 11 and a second half ring 12, one end of the first half ring 11 and one end of the second half ring 12 are fixed ends, and the other end is a free end; the fixed ends of the first half ring 11 and the second half ring 12 are connected through a hinge, the free ends of the first half ring 11 and the second half ring 12 are connected through bolts, the first half ring 11 and the second half ring 12 are of a turnover type connecting structure, the first expansion joint 6 and the second expansion joint 7 are convenient to clamp, and after clamping, the free ends are connected through bolts, and the clamping stability is guaranteed.

The utility model discloses a theory of operation and use flow: the utility model discloses an expansion joint body 1 is when inserting pipe-line system, insert expansion joint 6 or No. two expansion joints 7 earlier, for example make expansion joint 7 No. two earlier, utilize lower flange 3 to insert pipe-line system, later adjust the adjusting part on expansion joint 6, rotate corresponding handle 18 can, utilize handle 18 to drive adjusting screw 16 and rotate, utilize adjusting screw 16 and screw hole 17's screw thread to close the relation soon, make expansion joint 6 around the certain angle of double screw 4 rotation, guarantee that expansion joint 6 and No. two expansion joints 7's axial atress is on a straight line.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high temperature metal expansion joint, includes expansion joint body (1), expansion joint body (1) includes an expansion joint (6) and No. two expansion joints (7), just an expansion joint (6) with No. two expansion joints (7) close the connection through the screw soon, its characterized in that: an upper connecting flange (2) and a lower connecting flange (3) are respectively fixed at one end, away from each other, of the first expansion joint (6) and the second expansion joint (7), two connecting blocks (5) which are symmetrically distributed are fixed on the outer side faces of the upper connecting flange (2) and the lower connecting flange (3), a double-headed screw (4) is connected between the two connecting blocks (5), adjusting components for adjusting the angles of the first expansion joint (6) and the second expansion joint (7) are installed on the inner sides of the other two connecting blocks (5), and each adjusting component comprises an adjusting screw (16) and an adjusting block (15); and a stabilizing ring (8) is sleeved outside the joint of the first expansion joint (6) and the second expansion joint (7).

2. A high temperature metal expansion joint as claimed in claim 1, wherein: regulating block (15) are fixed respectively expansion joint (6) with the outer wall of No. two expansion joints (7), be fixed with a support bar (13) and No. two support bars (14) of relative distribution between the opposite face of connecting block (5), adjusting screw (16) are erect through bearing support and are installed a support bar (13) with No. two support bars (14) are inboard, and offer the confession on regulating block (15) screw hole (17) that adjusting screw (16) run through, adjusting screw (16) through screw hole (17) with regulating block (15) screw thread closes soon and links to each other.

3. A high temperature metal expansion joint as claimed in claim 2, wherein: one end of the adjusting screw rod (16) penetrates through the second support bar (14), and a handle (18) is installed at the extending end of the adjusting screw rod (16).

4. A high temperature metal expansion joint as claimed in claim 1, wherein: the outer wall of the connecting end of the first expansion joint (6) and the second expansion joint (7) is respectively provided with a positioning groove (10), and the inner wall of the stabilizing ring (8) is fixed with a positioning bulge (9) corresponding to the positioning groove (10).

5. A high temperature metal expansion joint as claimed in claim 4, wherein: the positioning protrusions (9) and the positioning grooves (10) are both of circular structures.

6. A high temperature metal expansion joint as claimed in claim 1, wherein: the stabilizing ring (8) comprises a first half ring (11) and a second half ring (12), one end of the first half ring (11) and one end of the second half ring (12) are fixed ends, and the other end of the first half ring and the other end of the second half ring are free ends; the fixed ends of the first half ring (11) and the second half ring (12) are connected through a hinge, and the free ends of the first half ring (11) and the second half ring (12) are connected through a bolt.