CN211599919U - Pipeline protection device - Google Patents
Pipeline protection device Download PDFInfo
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- CN211599919U CN211599919U CN201922294966.1U CN201922294966U CN211599919U CN 211599919 U CN211599919 U CN 211599919U CN 201922294966 U CN201922294966 U CN 201922294966U CN 211599919 U CN211599919 U CN 211599919U
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- pipeline
- flange
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- protection device
- casing pipe
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Abstract
A pipeline protection device comprises rib plates, a connecting flange ring, a flange casing pipe short section and a connecting ring plate, wherein the rib plates are uniformly welded on the side part of the connecting flange ring; and the flange casing pipe short joint is annularly welded and connected with the connecting ring plate. Through lining union coupling externally mounted pipeline protection device in the completion of restoreing, steel casing pipe of pipeline installation at lining union coupling portion that will restore the completion, weld with the outside of restoreing the pipeline, realize connecting fixedly and sealed, the other end carries out flange joint fixed with sealed, forms a confined cavity to realize whole parcel protection, strengthen external damage resistance ability, the device simple structure, the site operation is swift, economical and practical.
Description
Technical Field
The utility model relates to a protection device especially relates to a pipeline protection device, belongs to pipeline repair technical field.
Background
The pipeline is one of important infrastructure for supporting social development and ensuring people's life, and pipeline maintenance is a necessary means for ensuring normal mechanism and function. In general, the pipeline repairing work mainly carries out pipeline repairing through two repairing modes, namely excavation repairing and trenchless repairing. The existing pipeline trenchless repairing method mainly adopts a lining pipe, the flexible lining pipe is penetrated into an old pipeline through traction, and the lining pipe is attached to the inner wall of the old pipeline through inflation and expansion to form a new sealing structure, so that the aim of repairing the underground pipeline is fulfilled.
However, the whole pipeline after the joint of the lining pipe is installed needs to be buried and restored, and relates to an area which needs to be borne by the upper part near a road, backfilled soil blocks or stones can generate a large extrusion damage effect on the joint of the lining pipe under the action of external force such as rolling by wheels, and the joint of the lining pipe can be damaged too early after long-term use, so that pipeline leakage is generated.
It is against this background that the present patent application proposes a pipe protection device.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to overcome the above disadvantages of the prior art, and to provide a pipeline protection device.
The utility model discloses a realize by following technical scheme:
a pipeline protection device comprises a rib plate, a connecting flange ring, a flange casing pipe short section, a connecting ring plate and a pipeline protection device;
the rib plates are uniformly welded on the side part of the connecting flange ring, and one end of the flange casing pipe short section is provided with a connecting flange suitable for the connecting flange ring; and the flange casing pipe short joint is annularly welded and connected with the connecting ring plate.
The connecting flange ring is a circular steel plate cut by a steel plate.
And screw holes are uniformly distributed on the outer edge side of the connecting flange ring.
The rib plates are triangular steel plates cut by steel plates.
The connecting ring plate is an annular steel plate cut by a steel plate.
And a threaded pipe joint is welded in the middle of the flange sleeve short section.
The utility model has the advantages that: due to the adoption of the technical proposal of the utility model,
the pipeline protection device is arranged outside the repaired lining pipe joint, the repaired pipeline is provided with the steel sleeve at the joint part of the lining pipe joint and is welded with the outside of the repaired pipeline, connection, fixation and sealing are realized, the other end of the repaired pipeline is connected, fixed and sealed through a flange, and a closed cavity is formed, so that integral wrapping protection is realized, and the external force damage resistance is enhanced. The device has simple structure, rapid site construction, economy and practicality.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic view of a pipeline connection of a pipeline protection device according to the present invention;
FIG. 2 is a partial view of a pipeline connection of the pipeline protection device of the present invention;
fig. 3 is a schematic structural component view of a pipeline protection device according to the present invention.
The parts in the drawings are numbered as follows: 1. a liner tube; 2. a pipeline protection device; 2.1, rib plates; 2.2, connecting a flange ring; 2.3, flange casing pipe short sections; 2.4, connecting the ring plates; 3. repairing the pipeline; 4. a lining pipe joint; 5. connecting the short-section pipes; 6. original pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, a pipe protection device is mainly used to increase the long-term safety of a 4-lined pipe joint after a 6-original pipe is repaired using a trenchless lined pipe. 6-the original pipeline can be a steel or cement pipeline, leakage is caused by internal damage which occurs for a long time, and a fault section is repaired by penetrating a 1-lining pipe to form a section of 3-repair pipeline. 1-the lining pipe is a thin-wall tubular pipeline made of flexible polymer composite materials, and is developed and manufactured according to 6-characteristics of medium flowing through the original pipeline, pressure and the like in an unmarked mode;
respectively cutting off an opening section which meets the requirement of threading construction from a certain length position at two ends of a fault section of a 6-original pipeline, then threading a steel wire rope, threading a 1-lining pipe through the steel wire rope, then installing 4-lining pipe joints at two ends of the fault section, designing and manufacturing the 4-lining pipe joints by combining the 1-lining pipe with the wall thickness and the 6-original pipeline size, pressure and the like, then assembling on site according to the requirement, opening the 1-lining pipe through an inner core, and tightly holding the 1-lining pipe through an outer hoop to form the 4-lining pipe joint, or selecting different 4-lining pipe joints according to other characteristics of manufacturers and completing manufacturing and installation;
before 6-original pipeline cutting and ready for installing 1-lining pipe, 2.2-connecting flange rings are required to be welded according to requirements when flanges at the two ends of a repaired pipe section are welded, 2.2-connecting flange rings are circular rings cut by steel plates, the inner diameter meets the operation requirement of sleeving 3-repaired pipeline outer wall and having a reasonable welding area, the outer diameter meets the requirement of subsequent installation and does not interfere with a 4-lining pipe joint which is installed or is about to be installed according to the designed space, a reasonable flange connecting annular area is designed according to the principle after the sheath pipe is installed, a circle of screw holes are arranged on the 2.2-connecting flange close to the outer edge, the design is carried out according to the requirement of meeting the connection strength and subsequent glue injection or bearing the specified requirement of external pressure, and the size of the outer diameter is reduced as much as possible on the basis of meeting the use function; after the 2.2-connecting flange ring is welded and connected with the 3-repairing pipeline, a circle of 2.1-rib plates are welded on the inner side of the area close to the 3-repairing pipeline, so that the structural strength is improved, and the 2.2-connecting flange ring is prevented from being damaged when the pipeline is thermally stretched; 2.1-the rib plate is cut into a triangle by adopting a steel plate with a wall thickness closer to that of the 3-repair pipeline, and welding and fixing are carried out according to the circumferential distribution quantity and the position requirement of design analysis;
2.4-the connecting ring plate is made of steel plates, the plate body of the connecting ring plate is not provided with any hole, and the 2.4-the connecting ring plate is welded and fixed with the 5-the connecting short-section pipe; the 5-connecting short-section pipe is a short section formed by welding connecting flanges at two ends of a section of steel pipe with the same specification and model as the 6-original pipeline, and the end part of the 4-lining pipe joint is connected with the 6-original pipeline after the 4-lining pipe joint is installed to form a complete closed pipeline. A 2.3-flange casing pipe nipple is arranged outside the 4-lining pipe joint, the pipe joint is made of a steel pipe with an inner diameter slightly larger than the outer diameter of the 4-lining pipe joint and a certain wall thickness, a connecting flange is welded at only one end of the pipe joint, and a hole and a sealing step which are connected with the outer diameter of the flange are matched with a 2.2-connecting flange ring;
the 2.3-flange casing pipe nipple is sleeved on the 5-connecting pipe nipple and integrally retreats to the center of the 5-connecting pipe nipple during installation, so that the inconvenience in operation during connection of the 5-connecting pipe nipple is avoided. Dragging the 2.3-flange casing pipe short section to enable the connecting flange to be close to the 2.2-connecting flange ring, and installing a sealing ring and a fastening bolt according to requirements;
and (3) annularly welding the 2.3-flange casing pipe nipple on the 2.4-connecting ring plate welded on the 5-connecting short-joint pipe to realize sealing and fixing. In order to avoid damage to the 1-lining pipe caused by thermal influence of welding, water cooling can be performed on the 6-original pipeline in the welding process, and meanwhile, small-current multi-pass welding is adopted, so that the closed pipeline protection device with certain rigidity is finally formed.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (6)
1. A pipeline protection device comprises a rib plate, a connecting flange ring, a flange casing pipe short section and a connecting ring plate,
the method is characterized in that: the rib plates are uniformly welded on the side part of the connecting flange ring, and one end of the flange casing pipe short section is provided with a connecting flange suitable for the connecting flange ring; and the flange casing pipe short joint is annularly welded and connected with the connecting ring plate.
2. A pipeline protector as claimed in claim 1, wherein: the connecting flange ring is a circular steel plate cut by a steel plate.
3. A pipeline protector as claimed in claim 1, wherein: and screw holes are uniformly distributed on the outer edge side of the connecting flange ring.
4. A pipeline protector as claimed in claim 1, wherein: the rib plates are triangular steel plates cut by steel plates.
5. A pipeline protector as claimed in claim 1, wherein: the connecting ring plate is an annular steel plate cut by a steel plate.
6. A pipeline protector as claimed in claim 1, wherein: and a threaded pipe joint is welded in the middle of the flange sleeve short section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922294966.1U CN211599919U (en) | 2019-12-19 | 2019-12-19 | Pipeline protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922294966.1U CN211599919U (en) | 2019-12-19 | 2019-12-19 | Pipeline protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211599919U true CN211599919U (en) | 2020-09-29 |
Family
ID=72593598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922294966.1U Active CN211599919U (en) | 2019-12-19 | 2019-12-19 | Pipeline protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211599919U (en) |
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2019
- 2019-12-19 CN CN201922294966.1U patent/CN211599919U/en active Active
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