CN218818949U

CN218818949U - Overhead type heat preservation pipe

Info

Publication number: CN218818949U
Application number: CN202223271142.0U
Authority: CN
Inventors: 杨彦伟; 尹宝生
Original assignee: Henan Yiyang Pipe Technology Co ltd
Current assignee: Henan Yiyang Pipe Technology Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-07
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to a thermal insulation pipe technical field, concretely relates to overhead thermal insulation pipe. Including the working tube, the outside cover of working tube is equipped with the polyethylene pipe, the working tube outside is fixed with multiunit support piece along its axial direction equipartition, working tube one end is fixed with fixed seal ring, another pot head of working tube is equipped with the activity seal ring, the cover is established on the working tube of polyethylene intraductal side and is fixed with solid fixed ring, fixed connection can be dismantled through a plurality of connecting pieces to activity seal ring and solid fixed ring, be fixed with the filling pipe between polyethylene pipe and the working tube, the filling pipe runs through fixed seal ring and rather than fixed connection. The utility model discloses a behind the polyethylene pipe is run through earlier to the working pipe, recycle activity seal ring and carry out the shutoff with the annular space left side port of polyethylene pipe and working pipe, and it is more convenient to wear into the in-process of polyethylene intraductal with the working pipe, and the in-process that the polyethylene pipe was worn into to the working pipe can not take place to block.

Description

Overhead type heat preservation pipe

Technical Field

The utility model relates to a thermal insulation pipe technical field, concretely relates to overhead thermal insulation pipe.

Background

The overhead heat-insulating pipe is a pipeline for conveying gas or liquid, and is mainly used in the central heating industry. The overhead heat-insulating pipe comprises a core pipe and an outer pipe, polyurethane foaming glue is filled in an annular space between the core pipe and the outer pipe, and the polyurethane foaming glue can play a heat-insulating role. In the existing part of overhead heat-insulating pipes, a mold is needed to position a core pipe and an outer pipe in the production process, then foaming glue is filled between the core pipe and the outer pipe, the sealing performance of the mold on annular ports of the core pipe and the outer pipe is also needed to be considered in the positioning process of the core pipe and the outer pipe, and then the leakage of the foaming glue is avoided in the process of filling the foaming glue into the annular of the core pipe and the outer pipe.

The outer pipe of some built on stilts insulating tube is seamless steel pipe, and outer pipe intensity is high, can effectual protection polyurethane heat preservation and inner tube. The outer pipe of some built on stilts insulating tube is the polyethylene pipe, utilizes the polyethylene pipe as the outer pipe and has better corrosion resisting property. The overhead heat-insulating pipes with different structures can be selected in the construction process according to the requirements.

The patent document with the application number of CN202220042770.2 and the invention name of 'a prefabricated overhead heat-insulating pipe' provides a heat-insulating pipe structure for the company. The core pipe and the outer pipe are not required to be positioned by a mold, the core pipe and the outer pipe can be directly filled with heat-insulating filler after being assembled, the step of installing and disassembling the mold is omitted, the production efficiency can be improved, and after the heat-insulating pipe is manufactured, the structural strength is high and the stability is good. The annular port of the outer pipe and the annular port of the core pipe are sealed by the limiting ring and the blocking ring, wherein the limiting ring is fixedly connected with one end of the outer pipe, the port of one side of the annular of the outer pipe and the annular of the core pipe is sealed by the aid of cooperation of the limiting ring and the blocking ring, and polyurethane foaming glue is filled into the annular by aid of injection holes formed in the limiting ring. In the insulating tube structure described in this patent, if the outer tube of the insulating tube is a steel tube, the limit ring is conveniently fixedly connected to the outer tube, but if the outer tube is a polyethylene tube, the limit ring is inconvenient to connect to the outer tube made of polyethylene, and therefore a new insulating tube structure is required, so that the new insulating tube structure can satisfy both the production of the insulating tube in which the outer tube is a steel tube and the production of the insulating tube in which the outer tube is a polyethylene tube. In the process of filling the polyurethane foaming adhesive into the outer pipe and the core pipe through the injection hole, the polyurethane foaming adhesive needs to be filled from one end of the annular space of the outer pipe and the core pipe to the other end of the annular space, and the density of the polyurethane foaming adhesive in the annular space is not uniform in the filling process, so that the heat insulation performance of the heat insulation pipe is easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an application scope is wide, and the convenience is produced for the insulating tube of steel pipe or polyethylene pipe to the outer tube, can directly carry out the packing of polyurethane foaming glue after work pipe and the assembly of polyethylene pipe, and the density that can guarantee the polyurethane foaming glue is even, and thermal insulation performance is good, can improve production efficiency, and structural strength is high, the overhead formula insulating tube that stability can be good.

In order to realize the purpose, the utility model provides a technical scheme is:

the utility model provides an overhead type insulating tube, including the working tube, the outside cover of working tube is equipped with the polyethylene pipe, the working tube outside is fixed with multiunit support piece along its axial direction equipartition, working tube one end is fixed with fixed seal ring, the other pot head of working tube is equipped with movable seal ring, the cover is established and is fixed with solid fixed ring on the inboard working tube of polyethylene pipe, fixed connection can be dismantled through a plurality of connecting pieces to movable seal ring and solid fixed ring, the annular has all been seted up to the relative one side in activity seal ring and fixed seal ring outer fringe, fixed seal ring and activity seal ring outer edge form the step, outer pipe tip is pegged graft in the annular of its one side and is tightly supported the step of its one side, be fixed with the filling pipe between polyethylene pipe and the working tube, the filling pipe runs through fixed seal ring and rather than fixed connection, filling pipe one end shutoff in the polyethylene pipe, a plurality of trompilings have been seted up on the intraductal filling pipe of polyethylene.

Specifically, every group support frame includes a plurality of extension boards, and a plurality of extension boards all have seted up the through-hole according to the axle center circumference equipartition setting of working tube on the extension board.

Specifically, a plurality of connecting pieces set up according to the axle center circumference equipartition of working pipe, and the connecting piece includes that the rotation is connected the piece that colludes on the activity seal, colludes the piece and includes straight portion and vertical portion, and the straight portion that colludes the piece runs through the activity seal and is connected rather than rotating, and solid fixed ring is located between the vertical portion and the activity seal that collude the piece, and solid fixed ring tightly supports the activity seal and the vertical portion that colludes the piece.

Specifically, the filling pipe penetrates through a through hole in the support plate and is fixedly connected with the support plate, and the filling pipe is a plastic pipe.

Specifically, one end of the support plate, which is far away from the working pipe, is an arc-shaped end, and the arc-shaped end of the support plate is in contact with the inner edge of the polyethylene pipe.

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

1. the utility model discloses a behind the polyethylene pipe is run through earlier to the working tube, recycle activity seal ring carries out the shutoff with the annular space left side port of polyethylene pipe and working tube, and it is more convenient to wear into the in-process of polyethylene intraductal with the working tube, and the in-process that the polyethylene pipe was worn into to the working tube can not take place to block.

2. The fixed seal ring and the movable seal ring are fixedly connected with the working pipe, and the steps on the outer sides of the fixed seal ring and the movable seal ring are used for positioning and plugging the polyethylene pipe.

3. The one end that the work pipe was kept away from to the arc is the arc end, and the in-process that the work pipe inserted can make things convenient for the work pipe to move at the polyethylene intraductal in to the polyethylene intraductal.

4. Through setting up the filling pipe, utilize the filling pipe to annotate polyurethane foaming glue in the annular space between polyethylene pipe and the working tube, can make in polyurethane foaming glue multiple spot, simultaneously and even the annular space of being annotated polyethylene pipe and working tube, can guarantee the polyurethane foaming glue in polyethylene pipe and the working tube annular space and add the homogeneity of notes volume, can guarantee the heat preservation effect.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is an enlarged view of the area a in fig. 1.

Fig. 3 is a right side view of the movable seal ring.

Part names in the drawings are as follows:

1. polyethylene pipe

2. Working tube

3. Supporting plate

4. Fixed seal ring

5. Movable seal ring

6. Hook piece

7. Fixing ring

8. Ring groove

9. Filling pipe

10. And (6) opening holes.

Detailed Description

As shown in fig. 1-3, an overhead heat preservation pipe comprises a working pipe 2, a polyethylene pipe 1 is sleeved outside the working pipe 2, and a plurality of groups of supporting pieces are uniformly distributed and fixed outside the working pipe 2 along the axial direction. Each group of support frames comprises a plurality of support plates 3, and the support plates 3 are uniformly distributed according to the circumference of the axis of the working pipe 2. The support plate 3 is provided with through holes. One end of the support plate 3, which is far away from the working pipe 2, is an arc-shaped end, and the arc-shaped end of the support plate 3 is contacted with the inner edge of the polyethylene pipe 1. The arc-shaped end of the support plate 3 can reduce the friction force between the support plate 3 and the polyethylene pipe 1. The working pipe 2 can conveniently move in the polyethylene pipe 1 in the process of inserting the working pipe 2 into the polyethylene pipe 1.

One end of the working tube 2 is fixed with a fixed seal ring 4. The other end of the working pipe 2 is sleeved with a movable seal ring 5. The fixed ring 7 is fixedly sleeved on the working pipe 2 on the inner side of the polyethylene pipe 1, and the movable seal ring 5 and the fixed ring 7 are detachably and fixedly connected through a plurality of connecting pieces. The connecting pieces are uniformly distributed according to the circumference of the axis of the working pipe 2. The work tube 2 runs through polyethylene pipe 1 earlier after, recycles activity seal ring 5 and carries out the shutoff with polyethylene pipe 1 and work tube 2's annular space left side port, and it is more convenient to wear into the in-process in polyethylene pipe 1 with work tube 2, and work tube 2 wears into the in-process that polyethylene pipe 1 can not take place to block.

The fixed seal ring 4 and the movable seal ring 5 are fixedly connected with the working pipe 2, and the steps on the outer sides of the fixed seal ring 4 and the movable seal ring 5 are used for positioning and plugging the polyethylene pipe 1. The structure is not only suitable for the production of the heat preservation pipe with the outer pipe as the polyethylene pipe 1, but also suitable for the production of the heat preservation pipe with the outer pipe as the steel pipe, and the heat preservation pipe structure has wide application range.

The connecting piece includes that the rotation is connected the piece 6 that colludes on the activity seal ring 5, colludes the piece 6 and includes straight portion and vertical portion, and the straight portion that colludes the piece 6 runs through the activity seal ring 5 and is connected rather than rotating. The fixing ring 7 is positioned between the vertical part of the hook member 6 and the movable seal ring 5, and the fixing ring 7 tightly abuts against the movable seal ring 5 and the vertical part of the hook member 6.

The annular groove 8 is formed in one side, opposite to the outer edge of the movable seal ring 5 and the outer edge of the fixed seal ring 4, and steps are formed on the outer edges of the fixed seal ring 4 and the movable seal ring 5. The end part of the outer pipe is inserted in the ring groove 8 at one side of the outer pipe and tightly abuts against the step at one side of the outer pipe. A filling pipe 9 is fixed between the polyethylene pipe 1 and the working pipe 2, the filling pipe 9 penetrates through a through hole in the support plate 3 and is fixedly connected with the support plate 3, and the filling pipe 9 is a plastic pipe. The filling pipe 9 penetrates through the fixed seal ring 4 and is fixedly connected with the fixed seal ring, and one end of the filling pipe 9 in the polyethylene pipe 1 is plugged. A plurality of openings 10 are formed in a filler pipe 9 in the polyethylene pipe 1.

Through setting up filling pipe 9, utilize filling pipe 9 to fill polyurethane foaming glue in the annular space between polyethylene pipe 1 and the working tube 2, can make polyurethane foaming glue multiple spot, simultaneously and even filled the annular space of polyethylene pipe 1 and working tube 2 in, can guarantee the polyurethane foaming glue in polyethylene pipe 1 and the working tube 2 annular space and add the homogeneity of the injection volume, can guarantee the heat preservation effect.

During the insulating tube production, will have 2 one ends of fixed ring 7's work pipe and insert in polyethylene pipe 1, then make work pipe 2 move in polyethylene pipe 1 for 1 right-hand members of polyethylene pipe are pegged graft in the annular 8 of fixed seal ring 4, and make 1 right-hand members of polyethylene pipe block by the step of fixed seal ring 4. Then the movable seal ring 5 is sleeved on the left end of the working tube 2. The piece 6 is colluded in the rotation for the vertical portion that colludes piece 6 is crisscross with solid fixed ring 7, and makes activity seal ring 5 be close to solid fixed ring 7, makes 1 left end of polyethylene pipe peg graft in the annular 8 of activity seal ring 5, and makes 1 left end of polyethylene pipe tightly support the step of activity seal ring 5. The hook 6 is then rotated so that the vertical portion of the hook 6 is in contact with the right end face of the fixed ring 7. At this time, the fixing ring 7 is located between the movable seal ring 5 and the vertical portion of the hook 6, and the fixing ring 7 abuts against the movable seal ring 5 and the vertical portion of the hook 6. After the movable seal ring 5 is installed, the polyethylene pipe 1 and the working pipe 2 are assembled. And (3) communicating a filling nozzle of the polyurethane foaming glue with a filling pipe 9, and filling the polyurethane foaming glue into the annular space of the polyethylene pipe 1 and the working pipe 2 through the filling pipe 9 at multiple points and simultaneously and uniformly. And after the polyurethane foaming glue is filled, cutting off the redundant filling pipe 9 on the outer side of the fixed seal ring 4.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an overhead type insulating tube, including working pipe (2), working pipe (2) outside cover is equipped with polyethylene pipe (1), a serial communication port, working pipe (2) outside is fixed with multiunit support piece along its axial direction equipartition, working pipe (2) one end is fixed with fixed seal ring (4), working pipe (2) other pot head is equipped with activity seal ring (5), the cover is established fixedly on polyethylene pipe (1) inboard working pipe (2) has solid fixed ring (7), fixed connection can be dismantled through a plurality of connecting pieces in activity seal ring (5) and solid fixed ring (7), annular (8) have all been seted up to activity seal ring (5) and the relative one side of fixed seal ring (4) outer edge formation step, outer pipe tip is pegged graft in annular (8) of its one side and tightly supports the step of its one side, be fixed with between polyethylene pipe (1) and working pipe (2) filling pipe (9), polyethylene pipe (9) run through fixed seal ring (4) and rather than fixed connection, polyethylene pipe (1) interior one end plug (9) of one side has seted up polyethylene pipe (10).

2. The overhead heat-insulating pipe as claimed in claim 1, wherein each support frame comprises a plurality of support plates (3), the plurality of support plates (3) are uniformly distributed according to the circumference of the axis of the working pipe (2), and the support plates (3) are provided with through holes.

3. An overhead insulated pipe according to claim 1, characterized in that the connecting elements are arranged according to the axial center circumference of the working pipe (2), the connecting elements comprise hook elements (6) rotatably connected to the movable seal ring (5), the hook elements (6) comprise straight portions and vertical portions, the straight portions of the hook elements (6) penetrate the movable seal ring (5) and are rotatably connected therewith, the fixing ring (7) is located between the vertical portions of the hook elements (6) and the movable seal ring (5), and the fixing ring (7) abuts against the movable seal ring (5) and the vertical portions of the hook elements (6).

4. An overhead insulated pipe as claimed in claim 2, characterized in that the filling pipe (9) extends through the through hole of the support plate (3) and is fixedly connected with the support plate (3), and the filling pipe (9) is a plastic pipe.

5. An overhead insulated pipe as claimed in claim 2, characterized in that the ends of the strips (3) remote from the service pipe (2) are curved ends, the curved ends of the strips (3) being in contact with the inner edge of the polyethylene pipe (1).