Low-heat-loss energy-saving environment-friendly prefabricated directly-buried thermal insulation pipe

Abstract

The utility model relates to a low-heat-loss energy-saving environment-friendly prefabricated directly-buried thermal insulation pipe, which belongs to the technical field of prefabricated directly-buried thermal insulation pipes and comprises a thermal insulation pipe, a butt joint mounting plate is fixedly mounted on the surface, close to the tail end, of the thermal insulation pipe, and a butt joint component is slidably mounted on the surface, close to the head end, of the thermal insulation pipe. According to the low-heat-loss, energy-saving and environment-friendly prefabricated directly-buried heat preservation pipe, by arranging a slidable butt-joint assembly at the head end of the heat preservation pipe, after two inner pipes are welded, a butt-joint sleeve is moved forwards, so that the butt-joint sleeve is arranged on the surface of the front heat preservation pipe in a sleeving mode, and a butt-joint mounting plate and a head end mounting plate are in bolted connection through butt-joint bolts and nuts; then the butt joint sleeve is filled with the heat preservation filling layer, heat preservation treatment of the butt joint position is completed, on-site manufacturing is avoided, and the problem that when an outer pipe is additionally arranged at the joint of a common low-heat-loss, energy-saving and environment-friendly prefabricated directly-buried heat preservation pipe, the whole process is tedious through on-site steel plate cutting is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated directly buried insulation pipes, in particular to a prefabricated directly buried insulation pipe with low heat loss, energy conservation and environmental protection. Background Technique

[0002] A prefabricated directly buried insulation pipe is a prefabricated insulation pipe system directly buried underground. It usually consists of an inner working steel pipe, a polyurethane insulation layer and a high-density polyethylene outer protective pipe. The prefabricated directly buried insulation pipe is mainly used for transporting high-temperature media such as hot water and steam, and at the same time has good heat insulation performance, reducing energy loss. Using rigid polyurethane foam plastic as the insulation layer has a low thermal conductivity coefficient and good heat insulation effect. The high-density polyethylene outer protective pipe has good corrosion resistance and anti-aging performance, and can adapt to various harsh environments. The prefabricated directly buried insulation pipe is prefabricated in the factory, and only simple connection and backfilling work need to be carried out on site, greatly shortening the construction period.

[0003] During installation, in order to improve the heat insulation effect, after laying the prefabricated directly buried insulation pipe in the trench and connecting the prefabricated directly buried insulation pipes section by section, an outer pipe is added at the connection, and then heat insulation materials are filled inside the outer pipe to improve the heat insulation effect at the connection, achieving the effect of energy conservation and environmental protection. Finally, backfilling work is carried out and tamped layer by layer to ensure the safety and stability of the pipeline.

[0004] However, for common prefabricated directly buried insulation pipes with low heat loss, energy conservation and environmental protection, when adding an outer pipe at the connection, steel plates are cut on site, wound into a circular pipe and then connected to the outer pipe of the prefabricated directly buried insulation pipe, and heat insulation materials are filled in the circular pipe wound by the steel plates. The whole process is relatively cumbersome. In view of this, this application proposes a prefabricated directly buried insulation pipe with low heat loss, energy conservation and environmental protection. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a prefabricated directly buried insulation pipe with low heat loss, energy conservation and environmental protection, which has the advantages of conveniently and quickly setting heat insulation materials at the connection, etc., and solves the problem that for common prefabricated directly buried insulation pipes with low heat loss, energy conservation and environmental protection, when adding an outer pipe at the connection, steel plates are cut on site, wound into a circular pipe and then connected to the outer pipe of the prefabricated directly buried insulation pipe, and heat insulation materials are filled in the circular pipe wound by the steel plates, and the whole process is relatively cumbersome.

[0006] To achieve the above object, the utility model provides the following technical scheme: A prefabricated directly buried insulation pipe with low heat loss, energy conservation and environmental protection, including an insulation pipe, a butt joint mounting plate is fixedly installed on the surface of the insulation pipe near the tail end, and a butt joint assembly is slidably installed on the surface of the insulation pipe near the head end;

[0007] The docking component includes a docking sleeve slidably mounted on the surface of the insulation pipe. One end of the docking sleeve is fixedly installed with a tail-end mounting plate, and the other end of the docking sleeve is fixedly installed with a head-end mounting plate. A docking bolt is passed through one side of the head-end mounting plate, and the docking bolt is fixed by a nut after passing through the docking mounting plate.

[0008] Furthermore, a filling hole is provided at the top of the docking sleeve, and an insulation filling layer is injected into the interior of the docking sleeve through the filling hole.

[0009] Furthermore, head-end mounting holes are provided on one side of both the docking mounting plate and the head-end mounting plate, and the head-end mounting holes are adapted to the docking bolts.

[0010] Furthermore, an anti-disengagement mounting plate is fixedly installed on the surface of the insulation pipe. An anti-disengagement bolt is passed through one side of the tail-end mounting plate, and the anti-disengagement bolt is fixed by a nut after passing through the anti-disengagement mounting plate.

[0011] Furthermore, tail-end mounting holes are provided on one side of both the anti-disengagement mounting plate and the tail-end mounting plate, and the tail-end mounting holes are adapted to the anti-disengagement bolts.

[0012] Furthermore, the insulation pipe includes an inner pipe and an outer pipe inside. An insulation layer is filled between the inner pipe and the outer pipe.

[0013] Furthermore, a surface anti-corrosion layer is coated on the surface of the outer pipe, and a docking anti-corrosion layer is coated on the surface of the docking sleeve.

[0014] Compared with the prior art, the present utility model provides a prefabricated directly buried insulation pipe with low heat loss, energy conservation and environmental protection, and has the following beneficial effects:

[0015] For this prefabricated directly buried insulation pipe with low heat loss, energy conservation and environmental protection, by providing a slidable docking component at the head end of the insulation pipe, after the two inner pipes are welded, the docking sleeve is moved forward so that the docking sleeve is sleeved on the surface of the previous insulation pipe, and the docking mounting plate and the head-end mounting plate are bolted through the docking bolt and the nut. Then, an insulation filling layer is filled inside the docking sleeve to complete the insulation treatment at the docking part, avoiding on-site fabrication and solving the problem that for a common prefabricated directly buried insulation pipe with low heat loss, energy conservation and environmental protection, when adding an outer pipe at the connection, it is necessary to cut the steel plate on-site, wind the steel plate into a circular pipe and then connect it to the outer pipe of the prefabricated directly buried insulation pipe, and fill the insulation material inside the circular pipe wound by the steel plate, and the whole process is rather cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a front view of the structure of the present utility model;

[0018] Figure 3 This is a side sectional view of the structure of the present utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the structure of the present utility model.

[0020] In the figure: 1, thermal insulation pipe; 101, inner pipe; 102, thermal insulation layer; 103, outer pipe; 1031, surface anti-corrosion layer; 2, butt joint mounting plate; 3, butt joint component; 31, butt joint sleeve; 311, filling hole; 312, butt joint anti-corrosion layer; 32, tail end mounting plate; 321, tail end mounting hole; 33, head end mounting plate; 331, head end mounting hole; 4, butt joint bolt; 5, thermal insulation filling layer; 6, anti-disengagement mounting plate; 7, anti-disengagement bolt. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to Figures 1 to 4 , a prefabricated directly buried thermal insulation pipe with low heat loss, energy conservation and environmental protection, including a thermal insulation pipe 1. A butt joint mounting plate 2 is fixedly installed on the surface of the thermal insulation pipe 1 near the tail end, and a butt joint component 3 is slidably installed on the surface of the thermal insulation pipe 1 near the head end.

[0023] Among them, the butt joint component 3 includes a butt joint sleeve 31 slidably installed on the surface of the thermal insulation pipe 1. A tail end mounting plate 32 is fixedly installed at one end of the butt joint sleeve 31, a head end mounting plate 33 is fixedly installed at the other end of the butt joint sleeve 31, and a butt joint bolt 4 penetrates through one side of the head end mounting plate 33. After passing through the butt joint mounting plate 2, the butt joint bolt 4 is fixed by a nut. During connection, the butt joint sleeve 31 is moved forward, and through the butt joint bolt 4 and the nut, the butt joint sleeve 31 is butt-jointed with the previous thermal insulation pipe 1, completing the installation of the butt joint sleeve 31, making the installation of the butt joint sleeve 31 convenient, avoiding fabricating connecting pipes at the connection site on-site, and improving the installation efficiency of the thermal insulation pipe 1.

[0024] Secondly, a filling hole 311 is opened at the top of the butt joint sleeve 31, and a thermal insulation filling layer 5 is injected into the inside of the butt joint sleeve 31 through the filling hole 311. After the butt joint sleeve 31 is installed, thermal insulation materials are injected into the inside of the butt joint sleeve 31 through the filling hole 311 to form a thermal insulation filling layer 5, which insulates the connection part of the two thermal insulation pipes 1, prevents heat loss at the connection part, improves the thermal insulation effect, and achieves the effect of energy conservation and environmental protection.

[0025] Meanwhile, head-end mounting holes 331 are provided on one side of both the docking mounting plate 2 and the head-end mounting plate 33, and the head-end mounting holes 331 are adapted to the docking bolts 4.

[0026] Among them, an anti-disengagement mounting plate 6 is fixedly installed on the surface of the insulating pipe 1, and an anti-disengagement bolt 7 passes through one side of the tail-end mounting plate 32. After passing through the anti-disengagement mounting plate 6, the anti-disengagement bolt 7 is fixed by a nut.

[0027] Secondly, tail-end mounting holes 321 are provided on one side of both the anti-disengagement mounting plate 6 and the tail-end mounting plate 32, and the tail-end mounting holes 321 are adapted to the anti-disengagement bolts 7. During transportation and before connection, the anti-disengagement bolts 7 and nuts are used to bolt the anti-disengagement mounting plate 6 and the tail-end mounting plate 32, and the docking sleeve 31 is connected to one side of the anti-disengagement mounting plate 6 to prevent the docking sleeve 31 from falling off.

[0028] Embodiment 2: On the basis of Embodiment 1, the insulating pipe 1 includes an inner pipe 101 and an outer pipe 103 inside. A heat-insulating layer 102 is filled between the inner pipe 101 and the outer pipe 103. Both ends of the inner pipe 101 extend to the outside of the outer pipe 103. After aligning the two inner pipes 101, the two inner pipes 101 are welded to complete the connection of the insulating pipe 1.

[0029] Among them, a surface anti-corrosion layer 1031 is coated on the surface of the outer pipe 103 to protect the outer pipe 103 from being corroded and improve the service life of the outer pipe 103. A docking anti-corrosion layer 312 is coated on the surface of the docking sleeve 31 to protect the docking sleeve 31 from being corroded and improve the service life of the docking sleeve 31.

[0030] When this embodiment is in use, the insulating pipes 1 are sequentially placed into the dug trenches. The inner pipes 101 of two adjacent insulating pipes 1 are aligned and welded. Then, the latter docking sleeve 31 is moved forward. Through the docking bolts 4 and nuts, the docking sleeve 31 is docked with the previous insulating pipe 1 to complete the installation of the docking sleeve 31. Then, the heat-insulating material is injected into the docking sleeve 31 through the filling hole 311 to form a heat-insulating filling layer 5 on the surface of the connection of the two inner pipes 101, so as to insulate the connection of the two insulating pipes 1, prevent heat loss at the connection, improve the heat-insulating effect, and achieve the effect of energy conservation and environmental protection.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated directly buried thermal insulation pipe with low heat loss, energy conservation and environmental protection, comprising a thermal insulation pipe (1), characterized in that: A butt joint mounting plate (2) is fixedly installed on the surface of the heat preservation pipe (1) near the tail end, and a butt joint component (3) is slidably installed on the surface of the heat preservation pipe (1) near the head end; The butt joint component (3) includes a butt joint sleeve (31) slidably installed on the surface of the heat preservation pipe (1). One end of the butt joint sleeve (31) is fixedly installed with a tail end mounting plate (32), and the other end of the butt joint sleeve (31) is fixedly installed with a head end mounting plate (33). A butt joint bolt (4) penetrates through one side of the head end mounting plate (33), and the butt joint bolt (4) is fixed by a nut after passing through the butt joint mounting plate (2).

2. The prefabricated directly buried thermal insulation pipe with low heat loss, energy conservation and environmental protection according to claim 1, characterized in that: A filling hole (311) is formed in the top of the butt joint sleeve (31), and a heat preservation filling layer (5) is injected into the interior of the butt joint sleeve (31) through the filling hole (311).

3. A prefabricated directly buried thermal insulation pipe with low heat loss, energy conservation and environmental protection according to claim 1, characterized in that: Head end mounting holes (331) are formed in one side of both the butt joint mounting plate (2) and the head end mounting plate (33), and the head end mounting holes (331) are adapted to the butt joint bolts (4).

4. A prefabricated directly buried thermal insulation pipe with low heat loss, energy conservation and environmental protection according to claim 1, characterized in that: An anti - detachment mounting plate (6) is fixedly installed on the surface of the heat preservation pipe (1). An anti - detachment bolt (7) penetrates through one side of the tail end mounting plate (32), and the anti - detachment bolt (7) is fixed by a nut after passing through the anti - detachment mounting plate (6).

5. A prefabricated directly buried insulating pipe with low heat loss, energy conservation and environmental protection according to claim 4, characterized in that: Tail end mounting holes (321) are formed in one side of both the anti - detachment mounting plate (6) and the tail end mounting plate (32), and the tail end mounting holes (321) are adapted to the anti - detachment bolts (7).

6. A prefabricated directly buried thermal insulation pipe with low heat loss, energy conservation and environmental protection according to claim 1, characterized in that: The heat preservation pipe (1) includes an inner pipe (101) and an outer pipe (103) inside. A heat preservation layer (102) is filled between the inner pipe (101) and the outer pipe (103).

7. A prefabricated directly buried thermal insulation pipe with low heat loss, energy conservation and environmental protection according to claim 6, characterized in that: A surface anti - corrosion layer (1031) is coated on the surface of the outer pipe (103), and a butt joint anti - corrosion layer (312) is coated on the surface of the butt joint sleeve (31).

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