CN218582612U

CN218582612U - Polyurethane composite reinforced direct-buried heat-insulating pipe

Info

Publication number: CN218582612U
Application number: CN202222097390.1U
Authority: CN
Inventors: 刘云江; 刘涛; 刘振; 刘旺
Original assignee: Tianjin Qianfeng Corrosion Insulation Engineering Co ltd
Current assignee: Tianjin Qianfeng Corrosion Insulation Engineering Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-03-07
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a compound enhancement mode direct-burried insulating tube of polyurethane, including the insulating tube body, still include protection machanism, protection machanism sets up two insulating tube body junction, protection machanism includes the mount, mount bottom fixedly connected with supports the base, it is provided with the removal frame to slide on mount one side, all be provided with protective assembly on mount and the removal frame, protective assembly includes the inoxidizing coating, inoxidizing coating and anticorrosive coating, anticorrosive coating and insulating tube body junction butt, be provided with the polyurethane heat preservation between anticorrosive coating and the inoxidizing coating. When the landfill insulating tube body, remove the frame and receive the extrusion back, just can slide to mount one side to through the junction with the protection component butt at the pipeline, be convenient for keep warm and improve corrosion resistance to the pipe connection department, thereby avoid the heat in the pipeline to run off from the pipe connection department, improve the life of this directly buried pipe simultaneously.

Description

Polyurethane composite reinforced direct-buried heat-insulating pipe

Technical Field

The utility model relates to a thermal insulation pipe technical field specifically is a compound enhancement mode direct-burried thermal insulation pipe of polyurethane.

Background

The polyurethane direct-buried heat-insulating pipe generally comprises a working pipe, a heat-insulating layer and an outer protective layer, wherein the working pipe is arranged on the innermost layer, fluid circulates in the working pipe, the working pipe is generally a steel pipe, and because the polyurethane hard foam heat-insulating layer is tightly bonded on the outer skin of the steel pipe, the air and water are isolated from permeating, a good corrosion-resistant effect can be achieved, and meanwhile, foaming holes of the polyurethane direct-buried heat-insulating pipe are closed, and the water absorption is very small. The high-density polyethylene outer protective layer and the glass fiber reinforced plastic shell have good corrosion resistance and insulation performance.

The existing polyurethane composite reinforced direct-buried heat insulation pipe, as the Chinese patent with the application number of 202120544948.9 entitled "a polyurethane direct-buried heat insulation pipe", discloses a polyurethane direct-buried heat insulation pipe; the centering alignment of the joint of the pipeline is convenient, the welding of the joint is not needed, the operation is simple, and the practicability is improved; including first insulating tube and second insulating tube, the structure of first insulating tube and second insulating tube is the same, first insulating tube and second insulating tube all include the medium and carry the steel pipe, be located the heat preservation in the medium transport steel pipe outside and be located the protective layer in the heat preservation outside, the both ends of medium transport steel pipe are provided with first groove and the second groove that can mutually support respectively, the junction of first insulating tube and second insulating tube is provided with centering mechanism and sealing mechanism, centering mechanism includes the multiunit reference column, multiunit locking screwed pipe and multiunit limiting plate, the outside both ends of medium transport steel pipe all are provided with the multiunit fixed plate, sealing mechanism includes solid fixed ring, compress tightly the steel ring, sealing washer and multiunit jackscrew, it is provided with the fracture on the steel ring to compress tightly.

Above-mentioned patent is through the cooperation between first insulating tube and the second insulating tube etc. convenient joint to the pipeline is centering and is aimed at, easy operation improves the practicality, does not do an improvement heat preservation operation in nevertheless the above-mentioned patent and handles to the kneck, has small space, then at the insulating tube in-process of using, the heat just runs off from the kneck of pipeline to influence the heat preservation effect of pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound enhancement mode direct-burried insulating tube of polyurethane to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compound enhancement mode direct-burried insulating tube of polyurethane, includes the insulating tube body, still includes protection machanism, protection machanism sets up two insulating tube body junction, protection machanism includes the mount, mount bottom fixedly connected with supports the base, it is provided with the removal frame to slide on mount one side, all be provided with the protection component on mount and the removal frame, the protection component includes the inoxidizing coating, inoxidizing coating and anticorrosive coating, anticorrosive coating and insulating tube body junction butt, be provided with the polyurethane heat preservation between anticorrosive coating and the inoxidizing coating.

Further, be provided with the extension piece on the mount, the spacing groove has been seted up on the extension piece, be provided with the stopper on the removal frame, the stopper slides and sets up at the spacing inslot.

Furthermore, a stress plate is arranged on the moving frame.

Furthermore, a plurality of groups of pre-fixing mechanisms are arranged between the fixing frame and the moving frame.

Furthermore, pre-fixing mechanism includes the spud pile with mount fixed connection, be provided with coupling spring on the spud pile, still including the drive block, the drive block sets up the other end at coupling spring, be provided with a locking piece on the drive block, remove and set up on the frame with locking piece joint complex locking groove.

Furthermore, still be provided with between locking groove and the removal frame and dodge the groove, still be provided with the pole of dodging between drive block and the locking block, dodge the pole and dodge groove sliding connection.

Compared with the prior art, the beneficial effects of the utility model are that: this compound enhancement mode direct-burried insulating tube of polyurethane, through the insulating tube body, the mount, remove the frame, the protective assembly, the inoxidizing coating, cooperation between anticorrosive coating and the polyurethane heat preservation, it slides inside the mount to remove the frame, when the landfill insulating tube body, it receives the extrusion back to remove the frame, just can slide to mount one side, thereby through the junction with the protective assembly butt at the pipeline, through the inoxidizing coating, cooperation between anticorrosive coating and the polyurethane heat preservation, be convenient for keep warm and improve corrosion resistance to the pipe connection department, thereby avoid the heat in the pipeline to run off from the pipe connection department, improve the life of this direct-burried pipe simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of an overall structure provided by an embodiment of the present invention;

fig. 2 is a schematic view of a fixing frame according to an embodiment of the present invention;

fig. 3 is a schematic overall structural diagram according to another embodiment of the present invention;

fig. 4 is a partial structural schematic view of a pre-fixing mechanism according to another embodiment of the present invention;

FIG. 5 is an enlarged view of the area A in FIG. 3;

fig. 6 is a schematic sectional view of a protection assembly according to an embodiment of the present invention.

Description of reference numerals: 1. a thermal insulation pipe body; 2. a fixed mount; 3. a movable frame; 4. a support base; 5. a limiting groove; 6. a limiting block; 7. a pre-fixing mechanism; 701. fixing the pile; 702. a connecting spring; 703. a drive block; 704. a locking groove; 705. an avoidance groove; 706. a locking block; 707. an avoidance rod; 8. an extension block; 9. a protective layer; 10. a polyurethane heat-insulating layer; 11. an anticorrosive layer; 12. a stress plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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 all belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a compound enhancement mode direct-burried insulating tube of polyurethane, including insulating tube body 1, still include protection machanism, protection machanism sets up at 1 welding department of two insulating tube bodies, protection machanism includes

mount

2, 2 bottom fixedly connected with support base 4 of mount, 2 one sides of mount are gone up to slide and are provided with and remove frame 3, mount 2 and remove and all be provided with protective assembly on the frame 3, protective assembly includes inoxidizing coating 9 and anticorrosive coating 11,

anticorrosive coating

11 and 1 welding department butt of insulating tube body, be provided with polyurethane heat preservation 10 between anticorrosive coating 11 and the inoxidizing coating 9.

Specifically, the polyurethane composite reinforced direct-buried heat-insulating pipe comprises two heat-insulating pipe bodies 1, and more specifically, the two heat-insulating pipe bodies 1 are welded; the direct-buried heat-insulating pipe is characterized by further comprising a protection mechanism, wherein the protection mechanism is arranged at the welding position of the two heat-insulating pipe bodies 1, the protection mechanism is arranged, so that the connection position of the two heat-insulating pipe bodies 1 can be protected conveniently, the situations of leakage and the like at the connection position of pipelines can be avoided, the service life of the direct-buried heat-insulating pipe can be further prolonged, and the use effect is good; the protection mechanism comprises a fixed frame 2, and the bottom of the fixed frame 2 is fixedly connected with a supporting base 4, so that the fixed frame 2 is fixed when the heat preservation pipe is used, a movable frame 3 is arranged on one side of the fixed frame 2 in a sliding manner, and the movable frame 3 can slide to one side of the fixed frame 2 when being stressed, so that the heat preservation pipe body 1 is fixed through the matching between the fixed frame 2 and the movable frame 3, wherein protection components are arranged on the fixed frame 2 and the movable frame 3, and the service life of the heat preservation pipe can be further prolonged through the arrangement of the protection components; the protection assembly comprises a protection layer 9, the protection layer 9 is arranged on the inner side of the movable frame 3, and the protection assembly further comprises an anti-corrosion layer 11, wherein the anti-corrosion layer 11 is abutted to the welding position of the two heat preservation pipe bodies 1, so that the welding position is prevented from being corroded by corrosive elements in soil, and the service life of the heat preservation pipe is prolonged; be provided with polyurethane heat preservation 10 between anticorrosive coating 11 and the inoxidizing coating 9, through setting up polyurethane heat preservation 10, avoid the heat to run off from the welding, lead to the heat preservation effect relatively poor to influence this insulating tube's life, excellent in use effect.

Be provided with on mount 2 and extend piece 8, extend and seted up spacing groove 5 on the piece 8, remove and be provided with stopper 6 on the frame 3, stopper 6 slides and sets up in spacing groove 5.

Preferably, wherein be provided with on mount 2 and extend piece 8, seted up spacing groove 5 on extending piece 8, be provided with stopper 6 on removing frame 3, stopper 6 slides and sets up in spacing groove 5, is convenient for remove the slip of frame 3.

The movable frame 3 is provided with a stress plate 12.

Preferably, wherein be provided with atress board 12 on removing frame 3, wherein atress board 12 can be the arc, and atress board 12 material is harder, when receiving pressure, can not crooked, then can order to move frame 3 and slide to one side that is close to mount 2 to it is fixed with insulating tube body 1.

The utility model provides another kind of embodiment still, wherein still be provided with multiunit fixing mechanism 7 in advance between mount 2 and removal frame 3, when buried pipeline in advance, can make mount 2 and removal frame 3 be in the closure state through fixing mechanism 7 in advance, avoid leading to mount 2 and removal to be in detached state between the frame 3 before buried pipeline to be not convenient for fix insulating tube body 1.

The pre-fixing mechanism 7 comprises a fixing pile 701 fixedly connected with the fixing frame 2, a connecting spring 702 is arranged on the fixing pile 701, and the pre-fixing mechanism further comprises a driving block 703, the driving block 703 is arranged at the other end of the connecting spring 702, a locking block 706 is arranged on the driving block 703, and a locking groove 704 matched with the locking block 706 in a clamping manner is formed in the moving frame 3.

Preferably, the pre-fixing mechanism 7 includes a fixing pile 701 fixedly connected with the fixing frame 2, the fixing pile 701 is provided with a connecting spring 702, and further includes a driving block 703, the driving block 703 is disposed at the other end of the connecting spring 702, the driving block 703 is provided with a locking block 706, the moving frame 3 is provided with a locking groove 704 in snap fit with the locking block 706, wherein the locking groove 704 can be disposed on the limiting block 6, and more specifically, the locking groove 704 is disposed at one side of the locking block 706 close to the moving frame 3, so that when in use, the locking block 706 and the locking groove 704 do not interfere with each other at the position of the moving frame 3, and the use is facilitated; an avoidance groove 705 is further formed between the locking groove 704 and the moving frame 3, an avoidance rod 707 is further arranged between the driving block 703 and the locking block 706, and the avoidance rod 707 is in sliding connection with the avoidance groove 705.

Therefore, when the device is used, the avoidance rod 707 can drive the locking block 706 to be clamped in the locking groove 704, under the elastic action of the connecting spring 702, the locking block 706 can be abutted inside the locking groove 704, and then the limiting block 6 can be driven to slide towards one side close to the fixed frame 2, so that the movable frame 3 can be driven to be close to the fixed frame 2, the movable frame 3 and the fixed frame 2 can be pre-fixed, the fixed frame 2 and the movable frame 3 can be in a closed state, and the use effect is good.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compound enhancement mode direct-burried insulating tube of polyurethane, includes insulating tube body (1), its characterized in that:

the heat-insulating pipe is characterized by also comprising a protection mechanism, wherein the protection mechanism is arranged at the welding position of the two heat-insulating pipe bodies (1);

the protection mechanism comprises a fixed frame (2), the bottom of the fixed frame (2) is fixedly connected with a supporting base (4), and a movable frame (3) is arranged on one side of the fixed frame (2) in a sliding mode;

the fixed frame (2) and the movable frame (3) are both provided with a protection component;

the protective component comprises a protective layer (9) and an anticorrosive layer (11), the anticorrosive layer (11) is abutted to the welding position of the heat preservation pipe body (1), and a polyurethane heat preservation layer (10) is arranged between the anticorrosive layer (11) and the protective layer (9).

2. The polyurethane composite reinforced direct-buried thermal insulation pipe as recited in claim 1, wherein: be provided with on mount (2) and extend piece (8), spacing groove (5) have been seted up on extending piece (8), be provided with stopper (6) on removing frame (3), stopper (6) slide to set up in spacing groove (5).

3. The polyurethane composite reinforced direct-buried heat-insulating pipe as claimed in claim 1, wherein: the movable frame (3) is provided with a stress plate (12).

4. The polyurethane composite reinforced direct-buried heat-insulating pipe as claimed in claim 1, wherein: a plurality of groups of pre-fixing mechanisms (7) are also arranged between the fixed frame (2) and the movable frame (3).

5. The polyurethane composite reinforced direct-buried thermal insulation pipe as recited in claim 4, wherein: the pre-fixing mechanism (7) comprises a fixing pile (701) fixedly connected with the fixing frame (2), and a connecting spring (702) is arranged on the fixing pile (701);

the movable rack is characterized by further comprising a driving block (703), the driving block (703) is arranged at the other end of the connecting spring (702), a locking block (706) is arranged on the driving block (703), and a locking groove (704) matched with the locking block (706) in a clamping mode is formed in the movable rack (3).

6. The polyurethane composite reinforced direct-buried thermal insulation pipe according to claim 5, characterized in that: an avoiding groove (705) is further formed between the locking groove (704) and the moving frame (3), an avoiding rod (707) is further arranged between the driving block (703) and the locking block (706), and the avoiding rod (707) is in sliding connection with the avoiding groove (705).