CN217653521U - Waterproof and anticorrosive steel-sheathed-steel heat-insulation pipe - Google Patents

Abstract

The utility model discloses a water-proof and anti-corrosion steel jacketed steel thermal insulation pipe, which comprises a built-in steel pipe, two sets of external steel pipes are arranged on the circumferential surface of the built-in steel pipe, and the opposite surfaces of the two sets of external steel pipes are in contact with a first arc-shaped pipe and the second arc-shaped tube, the joint of the first arc-shaped tube and the lower side of the second arc-shaped tube is hinged with a hinge, the outer wall of the upper side of the first arc-shaped tube is fixedly connected with a first fixing block, and the second arc-shaped tube A second fixing block is fixedly connected to the outer wall of the upper side, and the position of the second fixing block is corresponding to the position of the first fixing block. The first arc-shaped tube and the second arc-shaped tube can be rotated and opened under the cooperation of the hinge, so as to facilitate the maintenance of the insulation layer inside the outer steel pipe. After the insulation layer is repaired, it can pass through The cooperation of the bolts and nuts on the first fixing block and the second fixing block fixes the first arc-shaped tube and the second arc-shaped tube.

Description

A waterproof and anti-corrosion steel sheathed steel insulation pipe

technical field

The utility model relates to the technical field of a steel jacketed steel thermal insulation pipe, in particular to a waterproof and anti-corrosion steel jacketed steel thermal insulation pipe.

Background technique

Steel jacketed steel insulation pipe is a kind of pipeline product for conveying medium. It generally consists of working steel pipe, foam insulation layer and outer protective pipe. It is formed by the combination of equipment and outwards. Generally, it needs to be used in civil engineering and infrastructure industries. With the development of modern science and technology, the steel jacketed steel insulation pipes on the market are gradually developing towards the direction of multi-functionality and high durability.

A traditional waterproof and anti-corrosion steel jacketed steel insulation pipe is generally buried underground, while the inner part of the steel jacketed steel insulation pipe is provided with an insulation layer, and one of the steel jacketed steel insulation pipes has an inner insulation layer. If there is a problem, the general method is to cut the steel pipe to repair the insulation layer inside the steel pipe. After the insulation layer is repaired, the outer steel sleeve is reset, and then the reset steel sleeve is welded, resulting in a relatively large cost. .

Utility model content

The purpose of this utility model is to provide a water-proof and anti-corrosion steel jacketed steel insulation pipe, through which a first arc-shaped pipe and a second arc-shaped pipe are arranged in each external steel pipe, and the first arc-shaped pipe and the second arc-shaped pipe are arranged The shaped tube can be rotated and opened with the cooperation of the hinge, so as to facilitate the maintenance of the thermal insulation layer inside the outer steel pipe. After the thermal insulation layer is repaired, it can be fixed by the first fixing block and the second fixing block. The cooperation of the bolts and nuts on the block secures the first arc tube and the second arc tube.

In order to achieve the above purpose, the utility model provides the following technical scheme: a waterproof and anti-corrosion steel jacketed steel insulation pipe, comprising a built-in steel pipe, two sets of external steel pipes are arranged on the circumferential surface of the built-in steel pipe, The opposite surface of the steel pipe is in contact with a first arc-shaped tube and a second arc-shaped tube, the joint of the lower side of the first arc-shaped tube and the second arc-shaped tube is hinged with a hinge, and the upper side of the first arc-shaped tube is hinged. A first fixing block is fixedly connected to the outer wall of the second arc-shaped tube, and a second fixing block is fixedly connected to the outer wall of the upper side of the second arc tube, and the second fixing block corresponds to the position of the first fixing block, and the first The outer surfaces of the fixing block and the second fixing block are provided with a plurality of groups of corresponding circular holes, and the interiors of the plurality of groups of the circular holes are pierced with a plurality of groups of bolts, and the bolts are threaded on the side away from the second fixing block. There is a nut, and each external steel pipe is provided with a first arc tube and a second arc tube, and the first arc tube and the second arc tube can be rotated and opened under the cooperation of the hinge, thereby The thermal insulation layer inside the cut-out steel pipe plays a role in facilitating maintenance, and after the thermal insulation layer is repaired, the first arc-shaped pipe and the second Two arc-shaped tubes are fixed.

Preferably, a fixing ring is fixedly connected to the circumferential surfaces of the two sets of external steel pipes, and the setting of the fixing rings can better fix the external steel pipes and the built-in steel pipes when they are placed inside the soil layer.

Preferably, a thermal insulation layer is arranged between the built-in steel pipe and the external steel pipe, and a waterproof layer is arranged on the outer surface of the thermal insulation layer. The arrangement of the waterproof layer can prevent the water infiltrated in the soil layer from penetrating into the interior of the thermal insulation layer.

Preferably, a plurality of groups of third fixing blocks are fixedly connected to the inner walls of the outer steel pipes located on both sides of the outer steel pipes, and the side of the third fixing blocks away from the outer steel pipes is fixedly connected to the outer walls of the built-in steel pipes. The arrangement of multiple sets of third fixing blocks can fix the external steel pipe and the built-in steel pipe, and prevent the external steel pipe and the built-in steel pipe from shifting.

Preferably, a clamping groove is formed on the circumferential surface of one side of the built-in steel pipe, and a clamping block is fixedly connected to the side of the built-in steel pipe away from the clamping groove. By clamping the clamping block on each section of the built-in steel pipe To the inside of another set of built-in steel pipe clipping grooves, each built-in steel pipe can be initially fixed, thereby facilitating the welding of each built-in steel pipe by the staff.

Preferably, the outer surfaces of the external steel pipe, the first arc-shaped pipe, the second arc-shaped pipe, the hinge, the first fixing block, the second fixing block, the bolt and the nut are respectively provided with an anti-corrosion layer. , which can make the external steel pipe more durable when it is in the soil layer.

Compared with the prior art, the beneficial effects of the present utility model are:

1. A first arc-shaped tube and a second arc-shaped tube are arranged in each section of the external steel pipe, and the first arc-shaped tube and the second arc-shaped tube can be rotated and opened under the cooperation of the hinge, so that the The thermal insulation layer inside the cut-out steel pipe plays a role in facilitating maintenance, and after the thermal insulation layer is repaired, the first arc-shaped pipe and the The second arc tube is fixed.

2. When welding multiple external steel pipes and built-in steel pipes, the clamping block can be clamped into the clamping groove, so as to facilitate the welding of each external steel pipe and inner wall steel pipe by the staff.

Description of drawings

Fig. 1 is the right side schematic diagram of the utility model;

Fig. 2 is the front view schematic diagram of the utility model;

Fig. 3 is the left side schematic diagram of the utility model;

FIG. 4 is an enlarged view of part A in FIG. 3 of the utility model.

In the figure: 1. Built-in steel pipe; 2. The first arc-shaped pipe; 3. The second arc-shaped pipe; 4. The first fixing block; 5. The second fixing block; 6. Bolt; 7. Nut; 8. Hinge; 9. Insulation layer; 10. Third fixing block; 11. Snap block; 12. External steel pipe; 13. Fixing ring; 14. Snap groove.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-4, an embodiment provided by the present utility model:

In this implementation: a waterproof and anti-corrosion steel jacketed steel insulation pipe, comprising a built-in steel pipe 1, two sets of external steel pipes 12 are arranged on the circumferential surface of the built-in steel pipe 1, and the opposite surfaces of the two sets of external steel pipes 12 are in contact with a third An arc-shaped tube 2 and a second arc-shaped tube 3 , a hinge 8 is hinged at the connection of the lower side of the first arc-shaped tube 2 and the second arc-shaped tube 3 , and a hinge 8 is fixedly connected to the outer wall of the upper side of the first arc-shaped tube 2 The first fixing block 4 and the outer wall on the upper side of the second arc-shaped tube 3 are fixedly connected with a second fixing block 5, the second fixing block 5 corresponds to the position of the first fixing block 4, and the first fixing block 4 and the The outer surfaces of the two fixing blocks 5 are provided with a plurality of groups of corresponding circular holes, and the interior of the plurality of groups of circular holes is pierced with a plurality of groups of bolts 6, and the bolts 6 are threadedly connected with nuts 7 on one side away from the second fixing block 5, By setting the first arc-shaped tube 2 and the second arc-shaped tube 3 in each section of the external steel pipe 12 , the first arc-shaped tube 2 and the second arc-shaped tube 3 can be rotated and opened under the cooperation of the hinge 8 . Therefore, the insulation layer 9 inside the outer steel pipe 12 can be easily maintained. After the insulation layer 9 is repaired, the bolts 6 and nuts on the first fixing block 4 and the second fixing block 5 can be installed. 7 to fix the first arc tube 2 and the second arc tube 3.

Further, a fixing ring 13 is fixedly connected to the circumferential surfaces of the two sets of external steel pipes 12. The setting of the fixing rings 13 can better play a role of fixing when the external steel pipes 12 and the built-in steel pipes 1 are placed inside the soil layer. .

Further, an insulating layer 9 is arranged between the inner steel pipe 1 and the outer steel pipe 12, and a waterproof layer is arranged on the outer surface of the insulating layer 9, and the material flowing inside the inner steel pipe 1 can be insulated by the setting of the insulating layer 9. The function of the waterproof layer can prevent the water infiltrated in the soil layer from penetrating into the interior of the thermal insulation layer 9 .

Further, a plurality of groups of third fixing blocks 10 are fixedly connected to the inner walls of the outer steel pipes 12 on both sides of the outer steel pipes 12 , and the third fixing blocks 10 are fixedly connected to the outer walls of the built-in steel pipes 1 on the side away from the outer steel pipes 12 . , through the arrangement of multiple sets of third fixing blocks 10 , the external steel pipe 12 and the built-in steel pipe 1 can be fixed, and the displacement of the external steel pipe 12 and the built-in steel pipe 1 can be prevented.

Further, a snap groove 14 is opened on the circumferential surface of one side of the built-in steel pipe 1, and a snap block 11 is fixedly connected to the side of the built-in steel pipe 1 away from the snap groove 14. 11 is clamped to the inside of the clamping grooves 14 of another set of built-in steel pipes 1, so that each section of the built-in steel pipe 1 can be initially fixed, thereby facilitating the welding of each section of the built-in steel pipe 1 by the staff.

Further, the outer surfaces of the external steel pipe 12 , the first arc-shaped pipe 2 , the second arc-shaped pipe 3 , the hinge 8 , the first fixing block 4 , the second fixing block 5 , the bolt 6 and the nut 7 are respectively provided with anti-corrosion layers. , Through the setting of the anti-corrosion layer, the external steel pipe 12 can be more durable when it is in the soil layer.

Working principle: When using the utility model, when each section of steel jacketed steel insulation pipe is buried in the ground, when each section of steel jacketed steel insulation pipe is welded, the clamping block 11 of each section of built-in steel pipe 1 can be clamped to another section. A section of the built-in steel pipe 1 is inserted into the snap groove 14 on the built-in steel pipe 1, so as to play a fixed role, so that the staff can better weld the built-in steel pipe 1, and the thermal insulation layer 9 provided on the outer wall of the built-in steel pipe 1 can be used for heat preservation. Function, the waterproof layer arranged on the outside of the thermal insulation layer 9 can prevent water from penetrating into the interior of the thermal insulation layer 9. When there is a problem with the thermal insulation layer 9, the nut 7 can be twisted, so that the first arc-shaped tube 2 and the second arc-shaped tube can be 3. By rotating under the action of the hinge 8, the maintenance of the thermal insulation layer 9 in each outer steel pipe 12 can be more convenient.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (6)

1. The utility model provides a waterproof anticorrosion's steel bushing steel insulating tube, includes built-in steel pipe (1), its characterized in that: be provided with two sets of external steel pipes (12) on the periphery of built-in steel pipe (1), two sets of the opposite face contact of external steel pipe (12) has first arc pipe (2) and second arc pipe (3), the junction of first arc pipe (2) and second arc pipe (3) downside articulates there is hinge (8), first fixed block (4) of fixedly connected with on the outer wall of first arc pipe (2) upside, fixedly connected with second fixed block (5) on the outer wall of second arc pipe (3) upside, second fixed block (5) are corresponding with the position of first fixed block (4), and the corresponding circular port of multiunit, multiunit has been seted up to the surface of first fixed block (4) and second fixed block (5) the inside of circular port is worn to penetrate and is had multiunit bolt (6), one side threaded connection that second fixed block (5) were kept away from in bolt (6) has nut (7).

2. The water-resistant and corrosion-resistant steel-sheathed-steel thermal insulation pipe according to claim 1, characterized in that: the circumferential surfaces of the two groups of external steel pipes (12) are fixedly connected with fixing rings (13).

3. The water-resistant and corrosion-resistant steel-sheathed-steel thermal insulation pipe according to claim 1, characterized in that: a heat insulation layer (9) is arranged between the internal steel pipe (1) and the external steel pipe (12), and a waterproof layer is arranged on the outer surface of the heat insulation layer (9).

4. The water-resistant and corrosion-resistant steel-sheathed-steel thermal insulation pipe according to claim 1, characterized in that: the inner wall of the external steel pipe (12) positioned at two sides of the external steel pipe (12) is fixedly connected with a plurality of groups of third fixing blocks (10), and one side, far away from the external steel pipe (12), of each third fixing block (10) is fixedly connected with the outer wall of the internal steel pipe (1).

5. The waterproof and anticorrosive steel-sheathed steel thermal insulation pipe according to claim 1, characterized in that: the steel tube fixing device is characterized in that a clamping groove (14) is formed in the circumferential surface of one side of the built-in steel tube (1), and a clamping block (11) is fixedly connected to one side, far away from the clamping groove (14), of the built-in steel tube (1).

6. The waterproof and anticorrosive steel-sheathed steel thermal insulation pipe according to claim 1, characterized in that: the outer surfaces of the external steel pipe (12), the first arc-shaped pipe (2), the second arc-shaped pipe (3), the hinge (8), the first fixing block (4), the second fixing block (5), the bolt (6) and the nut (7) are respectively provided with an anticorrosive coating.

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