Energy-saving directly-buried polyurethane thermal insulation pipe

Abstract

The utility model discloses an energy-saving directly-buried polyurethane thermal insulation pipe, which relates to the technical field of thermal insulation pipes, and comprises an inner pipe body, a thermal insulation layer is arranged on the outer wall of the inner pipe body, a strength reinforcing layer is arranged outside the thermal insulation layer, a buffer layer is arranged outside the strength reinforcing layer, an outer protective layer is arranged outside the buffer layer, and the outer protective layer is arranged on the outer wall of the inner pipe body. The heat preservation layer comprises an inner polyurethane heat preservation layer and an outer polyurethane heat preservation layer, and a calcium silicate heat preservation layer is arranged between the inner polyurethane heat preservation layer and the outer polyurethane heat preservation layer. According to the energy-saving and environment-friendly pipeline, the double-layer heat preservation layer made of polyurethane materials is arranged, and the heat preservation interlayer of the calcium silicate heat preservation layer is arranged in the heat preservation layer, so that the heat preservation effect of the heat preservation layers is greatly improved compared with the prior art when the energy-saving and environment-friendly pipeline is used, the temperature loss of fluid in the pipeline is effectively reduced, and the energy-saving and environment-friendly purposes of the energy-saving and environment-friendly pipeline are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating pipes, in particular to an energy-saving directly buried polyurethane insulating pipe. Background Art

[0002] An insulating pipe is short for an adiabatic pipe, which is used for the transportation of liquids, gases and other media, and is used in the adiabatic insulation projects of pipelines in petroleum, chemical industry, aerospace, military, central heating, central air conditioning, municipal administration, etc.

[0003] In the utility model with the Chinese patent publication number CN217683688U, an energy-saving directly buried polyurethane insulating pipe is proposed, which can achieve the buffering of force, facilitate the effective protection of the pipe body, and is not prone to deformation.

[0004] After studying the prior art and the above patent, it is found that the existing insulating pipes have poor heat preservation effect during use, and the temperature of the fluid in the pipeline loses too fast, resulting in insufficient energy conservation during use, and their strength still needs to be improved. Therefore, the utility model hereby provides an energy-saving directly buried polyurethane insulating pipe. Content of the Utility Model

[0005] Technical Problems to be Solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and provide an energy-saving directly buried polyurethane insulating pipe.

[0007] Technical Solution

[0008] To achieve the above purpose, the utility model provides the following technical solution: an energy-saving directly buried polyurethane insulating pipe, including an inner pipe body, a heat preservation layer is arranged on the outer wall of the inner pipe body, a strength strengthening layer is arranged outside the heat preservation layer, a buffer layer is arranged outside the strength strengthening layer, and an outer protection layer is arranged outside the buffer layer;

[0009] The heat preservation layer includes an inner polyurethane heat preservation layer and an outer polyurethane heat preservation layer, a calcium silicate heat preservation layer is arranged between the inner polyurethane heat preservation layer and the outer polyurethane heat preservation layer, a heat preservation sandwich layer with a double-layer polyurethane material heat preservation layer and a calcium silicate heat preservation layer arranged inside it is set. During use, the heat preservation effect of this heat preservation layer is greatly improved compared with the prior art, thereby effectively reducing the temperature loss of the fluid in the pipeline, and then achieving the purpose of energy conservation and environmental protection of the energy-saving and environmental-friendly pipeline;

[0010] The buffer layer includes an outer support pipe and an inner support pipe, and a buffer balloon is arranged between the outer support pipe and the inner support pipe. The buffer layer includes the outer support pipe, the inner support pipe, and the buffer balloon arranged between the inner and outer support pipes. When in use, with the cooperation of the inner and outer support pipes and the arrangement of the buffer balloon, the buffer layer can achieve the damping and protection of force, is convenient to use, and has a simple operation, thereby effectively improving the structural strength of the insulation pipe.

[0011] Preferably, a plurality of fixing seats are sleeved outside the outer protective layer. The fixing seat includes a sleeve sleeved outside the outer protective layer, and a bearing seat is fixedly connected to the bottom of the sleeve.

[0012] Preferably, the strength reinforcement layer includes a pipe body, and reinforcing metal wires are arranged on both the inner and outer sides of the pipe body.

[0013] Preferably, the buffer balloon is acrylic resin, and the inside of the buffer balloon has a hollow cavity. A plurality of buffer balloons are evenly laid in the gap reserved between the support pipe and the inner support pipe. The gap between the plurality of buffer balloons and the gap reserved between the support pipe and the inner support pipe are also filled with filling glue.

[0014] Preferably, the outer protective layer is made of steel pipe material.

[0015] Preferably, an anti-corrosion paint is arranged outside the outer protective layer.

[0016] Beneficial effects:

[0017] Compared with the prior art, the energy-saving directly buried polyurethane insulation pipe has the following beneficial effects:

[0018] First, the present invention sets a double-layer polyurethane insulation layer and a calcium silicate insulation layer sandwich inside it. When in use, the inner and outer double-layer polyurethanes and the intermediate calcium silicate insulation layer are used in combination. Compared with the simple double-layer polyurethane insulation layer in the prior art, the insulation effect of this insulation layer is relatively good, and thus the temperature loss of the fluid in the pipeline can be effectively reduced, thereby achieving the purpose of energy conservation and environmental protection of the pipeline.

[0019] Second, the buffer layer of the present invention includes an outer support pipe, an inner support pipe, and a buffer balloon arranged between the inner and outer support pipes. When in use, with the cooperation of the inner and outer support pipes and the arrangement of the buffer balloon, when the device is subjected to external force, the buffer balloon with a hollow cavity can be used to achieve the damping and protection of force, is convenient to use, and has a simple operation, thereby effectively improving the structural strength of the insulation pipe. Description of the drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a structural schematic diagram of the present invention;

[0022] Figure 2 is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 is a structural schematic diagram of the buffer layer of the present invention;

[0024] Figure 4 is a structural schematic diagram of the heat insulation layer of the present invention;

[0025] Figure 5 is a structural schematic diagram of the strength reinforcement layer of the present invention.

[0026] In the figure:

[0027] 1, inner pipe body; 2, heat insulation layer; 3, strength reinforcement layer; 4, buffer layer; 5, outer protective layer; 6, fixing seat; 201, inner polyurethane heat insulation layer; 202, outer polyurethane heat insulation layer; 203, calcium silicate heat insulation layer; 401, outer support pipe; 402, inner support pipe; 403, buffer balloon; 4031, hollow cavity; 404, filling and injecting glue; 601, sleeve; 602, bearing seat; 301, pipe body; 302, strengthening metal wire. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Please refer to Figures 1 to 5 As shown, the present invention provides a technical solution: an energy-saving directly buried polyurethane insulation pipe, including an inner pipe body 1, a heat insulation layer 2 is arranged on the outer wall of the inner pipe body 1, a strength reinforcement layer 3 is arranged outside the heat insulation layer 2, a buffer layer 4 is arranged outside the strength reinforcement layer 3, and an outer protective layer 5 is arranged outside the buffer layer 4.

[0030] The thermal insulation layer 2 includes an inner polyurethane thermal insulation layer 201 and an outer polyurethane thermal insulation layer 202. A calcium silicate thermal insulation layer 203 is provided between the inner polyurethane thermal insulation layer 201 and the outer polyurethane thermal insulation layer 202. By providing a thermal insulation layer made of double-layer polyurethane and arranging a thermal insulation sandwich layer of calcium silicate inside it, when in use, the inner and outer double-layer polyurethanes and the intermediate calcium silicate thermal insulation layer are used in combination. Compared with the simple double-layer polyurethane thermal insulation layer in the prior art, the thermal insulation effect of this thermal insulation layer is relatively better, thereby effectively reducing the temperature loss of the fluid in the pipeline, and further achieving the purpose of energy conservation and environmental protection of the pipeline.

[0031] The buffer layer 4 includes an outer support pipe 401 and an inner support pipe 402. A buffer balloon 403 is provided between the outer support pipe 401 and the inner support pipe 402. The buffer layer 4 includes the outer support pipe 401, the inner support pipe 402 and the buffer balloon 403 arranged between the inner and outer support pipes. When in use, the arrangement of the inner and outer support pipes in cooperation with the buffer balloon enables the device to achieve shock absorption and protection of force through the buffer balloon with a hollow cavity when receiving external force. It is convenient to use and easy to operate, and can effectively improve the structural strength of the thermal insulation pipe.

[0032] Please refer specifically to Figure 1 , a plurality of fixing seats 6 are sleeved outside the outer protective layer 5. The fixing seat 6 includes a sleeve 601 sleeved outside the outer protective layer 5, and a bearing seat 602 is fixedly connected to the bottom of the sleeve 601.

[0033] Please refer specifically to Figure 5 , the strength reinforcement layer 3 includes a pipe body 301, and reinforcing metal wires 302 are provided on both the inner and outer sides of the pipe body 301.

[0034] The buffer balloon 403 in this application is acrylic resin. The inside of the buffer balloon 403 has a hollow cavity 4031. A plurality of buffer balloons 403 are arranged evenly in the gap reserved between the support pipe 401 and the inner support pipe 402. A filling glue 404 is also filled between the plurality of buffer balloons 403 and in the gap reserved between the support pipe 401 and the inner support pipe 402. When in use, the arrangement of the inner and outer support pipes in cooperation with the buffer balloon enables the device to achieve shock absorption and protection of force through the buffer balloon with a hollow cavity when receiving external force, and the filling glue 404 can further play a role in shock absorption and protection, improving the structural strength of the thermal insulation pipe.

[0035] Working principle: A thermal insulation layer made of double-layer polyurethane is provided, and a thermal insulation sandwich layer of calcium silicate thermal insulation layer 203 is arranged inside it. When in use, the thermal insulation effect of this thermal insulation layer 2 is greatly improved compared with the prior art, thereby effectively reducing the temperature loss of the fluid in the pipeline. The buffer layer 4 includes an outer support pipe 401, an inner support pipe 402, and buffer balloons 403 arranged between the inner and outer support pipes. When in use, with the cooperation of the inner and outer support pipes and the arrangement of the buffer balloons 403, the buffer layer 4 can be used to achieve shock absorption and protection of force.

[0036] It should be noted that in this article, 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 such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving directly buried polyurethane insulating pipe, comprising an inner pipe body (1), characterized in that: A heat insulation layer (2) is provided on the outer wall of the inner tube body (1), a strength reinforcement layer (3) is provided outside the heat insulation layer (2), a buffer layer (4) is provided outside the strength reinforcement layer (3), and an outer protection layer (5) is provided outside the buffer layer (4); The heat insulation layer (2) includes an inner polyurethane heat insulation layer (201) and an outer polyurethane heat insulation layer (202), and a calcium silicate heat insulation layer (203) is provided between the inner polyurethane heat insulation layer (201) and the outer polyurethane heat insulation layer (202); The buffer layer (4) includes an outer support tube (401) and an inner support tube (402), and a buffer balloon (403) is provided between the outer support tube (401) and the inner support tube (402).

2. An energy-saving directly buried polyurethane insulation pipe according to claim 1, characterized in that: A plurality of fixing seats (6) are sleeved outside the outer protection layer (5), the fixing seat (6) includes a sleeve (601) sleeved outside the outer protection layer (5), and a bearing seat (602) is fixedly connected to the bottom of the sleeve (601).

3. An energy-saving directly buried polyurethane insulating pipe according to claim 1, characterized in that: The strength reinforcement layer (3) includes a tube body (301), and strengthening metal wires (302) are provided on both the inner and outer sides of the tube body (301).

4. An energy-saving directly buried polyurethane insulating pipe according to claim 1, characterized in that: The buffer balloon (403) is acrylic resin, the inside of the buffer balloon (403) has a hollow cavity (4031), a plurality of buffer balloons (403) are evenly laid in the gap reserved between the support tube (401) and the inner support tube (402), and a filling glue (404) is also filled in the gaps between the plurality of buffer balloons (403) and the gap reserved between the support tube (401) and the inner support tube (402).

5. An energy-saving directly buried polyurethane insulation pipe according to claim 1, characterized in that: The outer protection layer (5) is made of steel pipe material.

6. The energy-saving directly buried polyurethane insulation pipe according to claim 1, characterized in that: An anti-corrosion paint is provided outside the outer protection layer (5).

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