CN213118017U

CN213118017U - Expansion joint leakage-proof sealing device

Info

Publication number: CN213118017U
Application number: CN202021614755.8U
Authority: CN
Inventors: 王涛; 胡国栋; 胡海波; 于新军; 王秒秒; 李培荣
Original assignee: Qingzhou China United Cement Co Ltd
Current assignee: Qingzhou China United Cement Co Ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-05-04
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses an expansion joint leakage-proof sealing device, including the fixed suit at the expansion joint and the outside inlayer sealing device of one side pipeline thereof, still include the fixed suit at the outside outer sealing device of inlayer sealing device and expansion joint opposite side pipeline, be provided with sealing baffle between inlayer sealing device and the outer sealing device, sealing baffle and outer sealing device fixed connection, leave the expansion clearance between sealing baffle and the inlayer sealing device, it has inlayer sealing material to fill between inlayer sealing device and expansion joint and the pipeline outer wall that surrounds, it has outer sealing material to fill between outer sealing device and inlayer sealing device, expansion joint, and the pipeline outer wall that surrounds; the utility model discloses can carry out quick restoration to impaired expansion joint, resume normal use rapidly, be applicable to the down time shorter, do not have the occasion of the condition such as reserve expansion joint, have simple structure, construction facility, with low costs, the time limit for a project short, sealed characteristics such as effectual.

Description

Expansion joint leakage-proof sealing device

Technical Field

The utility model relates to an expansion joint technical field especially relates to a sealing device is prevented leaking by expansion joint.

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 telescopic deformation of the working body corrugated pipe is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction due to heat and the like or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like. And can also be used for noise reduction and vibration reduction. In order to prevent the pipeline from deforming or breaking due to thermal elongation or temperature stress when the heating pipeline is heated, a compensator is required to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure are reduced. Although the expansion joint is a static device and not a main machine, the safety effect is not a little worth, otherwise the damage to the structure is inevitable and sufficient attention should be paid.

The expansion joint is worn, abraded and cracked for a long time. When the conditions occur, the expansion joint needs to be replaced by a new expansion joint generally, but the replacement of the expansion joint has high maintenance cost and long construction period and has certain danger.

Disclosure of Invention

The utility model aims to solve the technical problem that an expansion joint leakage-proof sealing device that simple structure, effective sealing just need not to change new expansion joint is provided.

In order to solve the technical problem, the technical scheme of the utility model is that: the expansion joint leakage-proof sealing device comprises an inner-layer sealing device fixedly sleeved on the expansion joint and the outer side of a pipeline on one side of the expansion joint, and an outer-layer sealing device fixedly sleeved on the inner-layer sealing device and the outer side of a pipeline on the other side of the expansion joint, wherein a sealing baffle is arranged between the inner-layer sealing device and the outer-layer sealing device, the sealing baffle is fixedly connected with the outer-layer sealing device, an expansion gap is reserved between the sealing baffle and the inner-layer sealing device, an inner-layer sealing material is filled between the inner-layer sealing device and the expansion joint and between the inner-layer sealing device and the outer wall of the pipeline surrounded by the expansion joint, and an outer-layer sealing material is filled between the outer-layer sealing device and the inner.

As a preferred technical scheme, the inner layer sealing device and the outer layer sealing device respectively comprise sleeves parallel to the pipeline wall, the outer ends of the sleeves are provided with plugging portions, and the plugging portions are fixedly connected with the corresponding pipeline outer wall.

Preferably, the overlap ratio of the inner layer sealing device and the outer layer sealing device is more than 50%.

Preferably, the distance between the inner sealing device and the outer sealing device is equal to the distance between the inner sealing device and the expansion joint.

As a preferable technical solution, the sealing baffle is a circular ring shaped baffle, the sealing baffle is perpendicular to the outer layer sealing device and the inner layer sealing device, an outer circumferential side wall of the sealing baffle is fixedly connected with the outer layer sealing device, and the expansion gap is arranged between an inner circumferential side wall of the sealing baffle and the inner layer sealing device.

By adopting the technical scheme, the expansion joint leakage-proof sealing device comprises an inner-layer sealing device fixedly sleeved outside the expansion joint and a pipeline on one side of the expansion joint and an outer-layer sealing device fixedly sleeved outside the pipeline on the other side of the expansion joint, wherein a sealing baffle is arranged between the inner-layer sealing device and the outer-layer sealing device and fixedly connected with the outer-layer sealing device; the utility model has the advantages that: through inciting somebody to action the utility model discloses fixed cladding can carry out quick restoration to impaired expansion joint on the expansion joint of damage, resumes normal use rapidly, and it is shorter to be applicable to the down time, does not have the occasion of the circumstances such as reserve expansion joint, the utility model has the characteristics of simple structure, construction facility, with low costs, the time limit for a project short, sealed effectual, this method is very convenient effective, can practice thrift a large amount of manpowers, material resources, financial resources.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

in the figure: 1-a pipeline; 2-an expansion joint; 3-outer layer sealing means; 4-inner layer sealing device; 5-inner layer sealing material; 6-outer layer sealing material; 7-sealing baffle plates; 8-expansion gap.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in fig. 1 and 2, the expansion joint leakage-proof sealing device comprises an inner sealing device 4 fixedly sleeved outside an expansion joint 2 and a pipeline 1 on one side thereof, and further comprises an outer sealing device 3 fixedly sleeved outside the inner sealing device 4 and a pipeline 1 on the other side of the expansion joint 2, a sealing baffle 7 is arranged between the inner sealing device 4 and the outer sealing device 3, the sealing baffle 7 is fixedly connected with the outer sealing device 3, an expansion gap 8 is reserved between the sealing baffle 7 and the inner sealing device 4, an inner sealing material 5 is filled between the inner sealing device 4 and the expansion joint 2 and the outer wall of the pipeline 1 surrounded by the expansion joint 2, and an outer sealing material 6 is filled between the outer sealing device 3 and the inner sealing device 4, the expansion joint 2 and the outer wall of the pipeline 1 surrounded by the expansion joint 2; the damaged expansion joint 2 can be quickly repaired and quickly recovered to be normally used by fixedly coating the utility model on the damaged expansion joint 2, firstly coating the inner layer sealing device 4 on the expansion joint 2 and the pipeline 1 at one end thereof, fixedly and hermetically connecting the outer end of the inner layer sealing device 4 with the pipeline 1, then filling the inner layer sealing material 5 between the inner layer sealing device 4 and the expansion joint 2, then coating the outer layer sealing device 3 on the expansion joint 2 and the pipeline 1 at the other end thereof and the outer part of the inner layer sealing device 4, fixedly connecting the outer end of the outer layer sealing device 3 with the corresponding pipeline 1, filling the outer layer sealing material 6 between the outer layer sealing device 3 and the expansion joint 2 and between the outer layer sealing device 3 and the inner layer sealing device 4, wherein the outer layer sealing device 3 and the inner layer sealing device 4 have an overlapping part, sealing baffle 7 is used for the shutoff outer sealing device 3 with the end is overlapped to inlayer sealing device 4 outer sealing material 6, the headspace when expansion gap 8 has guaranteed the expansion of expansion joint 2, the utility model is suitable for a down time is shorter, does not have the occasion of the condition such as reserve expansion joint 2, the utility model has the characteristics of simple structure, construction convenience, with low costs, the time limit for a project short, sealed effectual, the method is very convenient effective, can practice thrift a large amount of manpowers, material resources, financial resources.

As shown in fig. 1, the inner layer sealing device 4 and the outer layer sealing device 3 respectively comprise a sleeve parallel to the wall of the pipeline 1, the outer end of the sleeve is provided with a plugging portion, and the plugging portion is fixedly connected with the corresponding outer wall of the pipeline 1. The inner layer sealing device 4 and the outer layer sealing device 3 are partially sleeved together, the plugging parts are respectively positioned at the outer ends which are not sleeved together, and the plugging parts are not only used for plugging the inner layer sealing material 5 and the outer layer sealing material 6, but also used for fixing the outer layer sealing device 3 and the inner layer sealing device 4. The plug is preferably perpendicular to the outer layer sealing means 3 and the inner layer sealing means 4.

As shown in fig. 1, the overlap ratio of the inner layer sealing means 4 and the outer layer sealing means 3 is more than 50%. The sealing effect is better as the degree of overlap is larger, but since the material is wasted as the degree of overlap is larger, the degree of overlap may be preferably larger than 50%.

As shown in fig. 1, the distance between the inner seal 4 and the outer seal 3 is equal to the distance between the inner seal 4 and the expansion joint 2. The equal distance ensures that the thickness of the outer layer sealing material 6 filled between the inner layer sealing device 4 and the outer layer sealing device 3 and the thickness of the inner layer sealing material 5 filled between the inner layer sealing device 4 and the expansion joint 2 are consistent, which is beneficial to enhancing the sealing effect.

As shown in fig. 1 and 2, the sealing baffle 7 is a circular ring-shaped baffle, the sealing baffle 7 is perpendicular to the outer sealing device 3 and the inner sealing device 4, the outer circumferential side wall of the sealing baffle 7 is fixedly connected with the outer sealing device 3, and the expansion gap 8 is arranged between the inner circumferential side wall of the sealing baffle 7 and the inner sealing device 4. The expansion gap 8 is slightly larger than the expansion of the inner layer sealing device 4. The normal work of the expansion joint 2 is ensured.

The operation steps are as follows:

1) measuring the external dimension of the expansion joint 2, and respectively preparing the inner-layer sealing device 4 and the outer-layer sealing device 3; the inner layer sealing device 4 and the outer layer sealing device 3 are made of 6mm thick steel plates matched with the shape and the size of the expansion joint 2, and the distance from the corrugated pipe is determined according to different types of the expansion joint 2;

2) welding and fixing the inner layer sealing device 4 and filling the inner layer sealing material 5, preferably a sealing and heat insulating material such as asbestos;

3) welding and fixing the outer layer sealing device 3 and filling the inner layer sealing material 5, preferably a sealing and heat insulating material such as asbestos;

4) finally, the sealing baffle 7 is welded.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Sealing device is prevented leaking by expansion joint, its characterized in that: the sealing device comprises an expansion joint and an inner sealing device fixedly sleeved outside a pipeline on one side of the expansion joint, and further comprises an outer sealing device fixedly sleeved outside the inner sealing device and the pipeline on the other side of the expansion joint, a sealing baffle is arranged between the inner sealing device and the outer sealing device and fixedly connected with the outer sealing device, an expansion gap is reserved between the sealing baffle and the inner sealing device, an inner sealing material is filled between the inner sealing device and the expansion joint and between the inner sealing device and the outer wall of the pipeline surrounded by the expansion joint, and an outer sealing material is filled between the outer sealing device and the outer wall of the pipeline surrounded by the inner sealing device, the expansion joint and the outer wall of the pipeline surrounded by the expansion joint.

2. A leak-proof seal for an expansion joint as defined in claim 1, wherein: the inner layer sealing device and the outer layer sealing device respectively comprise sleeves parallel to the pipeline wall, the outer ends of the sleeves are provided with plugging portions, and the plugging portions are fixedly connected with the corresponding pipeline outer wall.

3. A leak-proof seal for an expansion joint as defined in claim 2, wherein: the overlap ratio of the inner layer sealing device and the outer layer sealing device is more than 50%.

4. A leak-proof seal for an expansion joint as defined in claim 2, wherein: the distance between the inner layer sealing device and the outer layer sealing device is equal to the distance between the inner layer sealing device and the expansion joint.

5. A leak-proof sealing device for an expansion joint according to any of claims 1 to 4, wherein: the sealing baffle is a circular ring-shaped baffle, the sealing baffle is perpendicular to the outer layer sealing device and the inner layer sealing device, the outer circumferential side wall of the sealing baffle is fixedly connected with the outer layer sealing device, and the expansion gap is arranged between the inner circumferential side wall of the sealing baffle and the inner layer sealing device.