CN217559336U

CN217559336U - Expansion joint leakage-proof sealing device

Info

Publication number: CN217559336U
Application number: CN202221511013.1U
Authority: CN
Inventors: 邓桢翔
Original assignee: Xiamen Tianhe Precision Sealing Technology Co ltd
Current assignee: Xiamen Tianhe Precision Sealing Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-11
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a sealing device is prevented leaking by expansion joint, it sets up on the pipeline in the ripple circle outside, and it includes limit ring, inner ring and outer loop, and the limit ring is equipped with two, connects perpendicularly respectively on the pipeline of ripple circle both sides, and the inner ring is connected to one of them limit ring perpendicularly, and the outer loop is connected to another limit ring perpendicularly, and the cross-section of inner ring and outer loop is horizontal 7 font structures, encloses into enclosed construction between inner ring and the outer loop, is equipped with soft sealing filler in this structure. The beneficial effects of the utility model are that: the inner ring is combined with the outer ring, so that the corrugated ring is isolated from the outside air, the corrugated ring is prevented from being corroded, and the service life is ensured; the joint of the inner ring and the outer ring is filled with soft sealing filler, so that certain elasticity is achieved, the deformation of the pipeline can be effectively buffered, and meanwhile, the sealing performance is guaranteed; the soft sealing packing groove is divided into 3 grids, and the sealing performance of the rest grooves can still be ensured after the single groove is damaged.

Description

Expansion joint leakage-proof sealing device

Technical Field

The utility model relates to an expansion joint prevents leaking sealing device belongs to sealed technical field.

Background

Expansion joints are also conventionally called compensators, or expansion joints. It is composed of bellows (an elastic element) and its working body, end pipe, support, flange and guide pipe. The expansion joint is a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses due to temperature differences and mechanical vibrations. The effective expansion and contraction deformation of the corrugated pipe of the working body is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction, or compensate the axial, transverse and angular displacement of the pipelines, conduits, containers and the like. And can also be used for noise reduction and vibration reduction. In order to prevent the deformation or damage of the pipe caused by thermal elongation or temperature stress when the temperature of the heat supply pipe is increased, a compensator is required to be arranged on the pipe to compensate the thermal elongation of the pipe, so as to reduce the stress of the pipe wall and the acting force acting on the valve or the bracket structure. The expansion joint corrugated pipe is directly contacted with the atmosphere, and is easy to be damaged by air oxidation after being used for a long time, and cracks appear.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing an expansion joint prevents leaking sealing device, should prevent leaking sealing device and adopt the inner ring to combine the outer loop, play isolation outside air effect to the ripple circle, avoid it to suffer to corrode, guarantee life, soft sealing filler is filled to the inner and outer ring junction, has certain elasticity, has guaranteed the leakproofness when can effectively cushion the pipeline deformation.

The utility model discloses a following scheme realizes: the utility model provides an expansion joint prevents leaking sealing device, its sets up on the pipeline in the ripple circle outside, and it includes limit ring, inner ring and outer loop, the limit ring is equipped with two, respectively the perpendicular connection on the pipeline of ripple circle both sides, the inner ring is connected to one of them limit ring perpendicularly, the outer loop is connected to another limit ring perpendicularly, the inner ring with the cross-section of outer loop is horizontal 7 font structures, the inner ring with the outer loop sets up relatively, enclose into enclosed construction between the inner ring with the outer loop, is equipped with soft sealing filler in this structure.

The inner ring and the outer ring are both composed of transverse plates and baffle plates, the transverse plates and the baffle plates are of annular structures, the baffle plates of the inner ring are vertically connected to the outer sides of the transverse plates of the inner ring, the baffle plates of the outer ring are vertically connected to the inner sides of the transverse plates of the outer ring, the outer ring is arranged on the outer sides of the inner ring, the baffle plates of the outer ring are in contact with the transverse plates of the inner ring, and the baffle plates of the inner ring are in contact with the transverse plates of the outer ring.

The inner ring and the outer ring are of non-connection structures, and the size of a closed structure enclosed by the inner ring and the outer ring changes along with expansion with heat and contraction with cold of the corrugated ring.

The inner ring and the outer ring are also provided with clapboards which are of annular structures and parallel to the baffle plates, the clapboard of the inner ring is arranged between the baffle plate and the clapboard of the outer ring, and the clapboard of the outer ring is arranged between the baffle plate and the clapboard of the inner ring.

The partition plate of the outer ring is in contact with the transverse plates of the inner ring, and the partition plate of the inner ring is in contact with the transverse plates of the outer ring.

The soft sealing filler is divided into three parts by the two baffles and the two partition plates.

The baffle and the baffle of the inner ring move left and right along the transverse plate of the outer ring under the action of external force, and the baffle of the outer ring move left and right along the transverse plate of the inner ring under the action of external force.

The end of the pipeline is connected to the flange ring, a plurality of corrugated rings are arranged on the pipeline, and the corrugated rings are welded on the pipeline.

The beneficial effects of the utility model are that:

1. the expansion joint leakage-proof sealing device adopts the inner ring combined with the outer ring, plays a role of isolating the external air to the corrugated ring, avoids the corrugated ring from being corroded, and ensures the service life;

2. the expansion joint leakage-proof sealing device of the utility model is filled with soft sealing filler at the joint of the inner ring and the outer ring, has certain elasticity, can effectively buffer the deformation of the pipeline and simultaneously ensures the sealing performance;

3. the utility model relates to a soft sealing packing groove of sealing device is prevented leaking by expansion joint divide into 3 check, all the other grooves still can guarantee the leakproofness after the damage appears in the single groove.

Drawings

Fig. 1 is a schematic view of a front cross-sectional structure of a sealing device for preventing leakage of an expansion joint of the present invention.

In the figure: the sealing structure comprises a corrugated ring 1, a side ring 2, an inner ring 3, an outer ring 4, a soft sealing filler 5, a transverse plate 6, a baffle 7, a partition plate 8, a pipeline 9 and a flange ring 10.

Detailed Description

The present invention will be further described with reference to fig. 1, but the scope of the present invention is not limited to the description.

In which like parts are designated by like reference numerals. It is noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component, and the drawings are in greatly simplified form and employ non-precise ratios, merely for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention.

In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development efforts may be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.

The utility model provides an expansion joint prevents leaking sealing device, it sets up on pipeline 9 in the ripple circle 1 outside, it includes limit ring 2, inner ring 3 and outer loop 4, limit ring 2 is equipped with two, connect perpendicularly respectively on the pipeline 9 of ripple circle 1 both sides, inner ring 3 is connected to one of them limit ring 2 perpendicularly, outer loop 4 is connected to another limit ring 2 perpendicularly, inner ring 3 and outer loop 4's cross-section is horizontal 7 font structures, inner ring 3 and outer loop 4 set up relatively, enclose into enclosed construction between inner ring 3 and the outer loop 4, be equipped with soft sealing filler 5 in this structure.

The inner ring 3 and the outer ring 4 are both composed of transverse plates 6 and baffle plates 7, the transverse plates 6 and the baffle plates 7 are of annular structures, the baffle plates 7 of the inner ring 3 are vertically connected to the outer sides of the transverse plates 6 of the inner ring 3, the baffle plates 7 of the outer ring 4 are vertically connected to the inner sides of the transverse plates 6 of the outer ring 4, the outer ring 4 is arranged on the outer sides of the inner ring 3, the baffle plates 7 of the outer ring 4 are in contact with the transverse plates 6 of the inner ring 3, the baffle plates 7 of the inner ring 3 are in contact with the transverse plates 6 of the outer ring 4, the inner ring 3 and the outer ring 4 are of non-connecting structures, the size of a closed structure enclosed between the inner ring 3 and the outer ring 4 changes along with the expansion caused by heat and contraction caused by cold of the corrugated ring 1, partition plates 8 are further arranged on the inner ring 3 and the outer ring 4, the partition plates 8 are also of annular structures and parallel to the baffle plates 7, the partition plates 8 of the inner ring 3 are arranged between the baffle plates 7 and the partition plates 8 of the outer ring 4, the partition plates 8 of the outer ring 4 are arranged between the baffle plates 7 and the partition plates 8 of the inner ring 3, the partition plates 8 of the outer ring 4 are in contact with the partition plates 6 of the partition plates 8 of the inner ring 4.

The soft sealing filler 5 is divided into three parts by two baffle plates 7 and two partition plates 8, the baffle plates 7 and the partition plates 8 of the inner ring 3 move left and right along the transverse plate 6 of the outer ring 4 under the action of external force, and the baffle plates 7 and the partition plates 8 of the outer ring 4 move left and right along the transverse plate 6 of the inner ring 3 under the action of external force.

The end of the pipeline 9 is connected to a flange ring 10, a plurality of corrugated rings 1 are arranged on the pipeline 9, and the corrugated rings 1 are welded on the pipeline 9.

In the use, because inner ring 3 and outer loop 4 are in the same place, the setting is in the outside of ripple circle 1, avoid ripple circle 1 to receive the corruption, when ripple circle 1 receives the expend with heat, the ripple circle is elongated, drive inner ring 3 and outer loop 4 removal dorsad, enclose into the enclosed construction grow between inner ring 3 and the outer loop 4, when ripple circle 1 receives the shrink, the ripple circle shortens, it moves in opposite directions to drive inner ring 3 and outer loop 4, enclose between inner ring 3 and the outer loop 4 and become the enclosed construction diminish, soft seal packing 5 is silica gel or rubber material, also can be stretched and shrink. The soft sealing packing groove is divided into 3 grids, and the sealing performance of the rest grooves can still be ensured after the single groove is damaged.

While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an expansion joint prevents leaking sealing device which characterized in that: the corrugated ring is arranged on a pipeline (9) on the outer side of a corrugated ring (1) and comprises two side rings (2), an inner ring (3) and an outer ring (4), wherein the two side rings (2) are respectively and vertically connected to the pipelines (9) on two sides of the corrugated ring (1), the inner ring (3) is vertically connected to one side ring (2), the outer ring (4) is vertically connected to the other side ring (2), the cross sections of the inner ring (3) and the outer ring (4) are both of a transverse 7-shaped structure, the inner ring (3) and the outer ring (4) are oppositely arranged, a closed structure is enclosed between the inner ring (3) and the outer ring (4), and soft sealing filler (5) is arranged in the structure.

2. A leak-proof sealing device for an expansion joint as claimed in claim 1, wherein: the inner ring (3) and the outer ring (4) are composed of transverse plates (6) and baffle plates (7), the transverse plates (6) and the baffle plates (7) are of annular structures, the baffle plates (7) of the inner ring (3) are perpendicularly connected to the outer sides of the transverse plates (6) of the inner ring (3), the baffle plates (7) of the outer ring (4) are perpendicularly connected to the inner sides of the transverse plates (6) of the outer ring (4), the outer ring (4) is arranged on the outer sides of the inner ring (3), the baffle plates (7) of the outer ring (4) are in contact with the transverse plates (6) of the inner ring (3), and the baffle plates (7) of the inner ring (3) are in contact with the transverse plates (6) of the outer ring (4).

3. A leak-proof sealing device for an expansion joint as claimed in claim 1, wherein: the inner ring (3) and the outer ring (4) are of a non-connection structure, and the size of a closed structure enclosed between the inner ring (3) and the outer ring (4) changes along with expansion with heat and contraction with cold of the corrugated ring (1).

4. A leak-proof sealing device for an expansion joint as claimed in claim 2, wherein: the inner ring (3) and the outer ring (4) are further provided with a partition plate (8), the partition plate (8) is also of an annular structure and is parallel to the baffle plate (7), the partition plate (8) of the inner ring (3) is arranged between the baffle plate (7) and the partition plate (8) of the outer ring (4), and the partition plate (8) of the outer ring (4) is arranged between the baffle plate (7) and the partition plate (8) of the inner ring (3).

5. A leak-proof sealing device for an expansion joint as claimed in claim 4, wherein: the diaphragm (8) of the outer ring (4) is in contact with the transverse plate (6) of the inner ring (3), and the diaphragm (8) of the inner ring (3) is in contact with the transverse plate (6) of the outer ring (4).

6. A leak-proof sealing device for an expansion joint as claimed in claim 4, wherein: the soft sealing filler (5) is divided into three parts by the two baffles (7) and the two clapboards (8).

7. A leak-proof sealing device for an expansion joint as claimed in claim 4, wherein: the baffle plate (7) and the baffle plate (8) of the inner ring (3) move left and right along the transverse plate (6) of the outer ring (4) under the action of external force, and the baffle plate (7) and the baffle plate (8) of the outer ring (4) move left and right along the transverse plate (6) of the inner ring (3) under the action of external force.

8. A leak-proof sealing device for an expansion joint as claimed in claim 1, wherein: the end part of the pipeline (9) is connected to a flange ring (10), a plurality of corrugated rings (1) are arranged on the pipeline (9), and the corrugated rings (1) are welded on the pipeline (9).