Low-temperature-resistant low-oil-permeability polyurethane oil delivery pipe

Abstract

The utility model discloses a low-temperature-resistant low-oil-permeability polyurethane oil conveying pipe which comprises a polyurethane oil conveying pipe body, and symmetrically-distributed pipe joints are arranged at the end of the polyurethane oil conveying pipe body. The heat preservation mechanism comprises a first heat preservation seat, a second heat preservation seat, a first heat preservation pad arranged on the first heat preservation seat and a second heat preservation pad arranged on the second heat preservation seat, the first heat preservation pad and the second heat preservation pad are both located on the outer wall of the polyurethane oil conveying pipe body, and the first heat preservation seat and the second heat preservation seat are the same in size; the first heat preservation pad and the second heat preservation pad are the same in size. A first fastening groove is formed in one end of the first heat preservation seat; the polyurethane oil conveying pipe has the advantages that the first heat preservation pad and the second heat preservation pad can be wrapped on the polyurethane oil conveying pipe body through the designed heat preservation mechanism, the heat preservation performance of the polyurethane oil conveying pipe is improved, and the low temperature resistance is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil pipelines, and particularly relates to a low-temperature resistant polyurethane oil pipeline with low oil permeability. Background Technique

[0002] Polyurethane materials have the characteristic of low thermal conductivity, which can effectively reduce the loss of heat during transportation and are particularly suitable for oil pipelines that require heat preservation; polyurethane pipelines are not only applicable to land pipelines but also widely used in the exploitation and transportation of offshore oil and gas fields, especially for deep-water long-distance submarine oil pipelines, where their heat preservation effect is more significant; during oil transportation, the pipeline needs to withstand various frictions and squeezes, and the polyurethane coating, with its high strength and wear resistance, can resist high-intensity friction and collision to ensure the integrity of the pipeline.

[0003] A high-performance heat-insulating oil pipeline with the publication number of CN204226874U, which discloses a high-performance heat-insulating oil pipeline including a high-density polyethylene layer, a fireproof layer, a metal skeleton layer, a nylon resin layer, a heat-insulating layer, a polyurethane heat-insulating layer, an oil pipeline, a temperature sensor, a filter, a sewage pipe, and a pipe joint. The high-performance heat-insulating oil pipeline is composed of a high-density polyethylene layer, a fireproof layer, a metal skeleton layer, a nylon resin layer, a heat-insulating layer, and a polyurethane heat-insulating layer from outside to inside in sequence.

[0004] Existing oil pipelines often directly carry out heat preservation through the polyurethane heat-insulating layer itself, which is not conducive to increasing the low-temperature resistance performance and increases the usage limitations. Content of the Utility Model

[0005] The purpose of the utility model is to provide a low-temperature resistant polyurethane oil pipeline with low oil permeability, which can increase the low-temperature resistance performance of the polyurethane oil pipeline through the added heat preservation mechanism.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A low-temperature resistant polyurethane oil pipeline with low oil permeability, including

[0007] A polyurethane oil pipeline body, and pipe joints symmetrically distributed are arranged at the ends of the polyurethane oil pipeline body;

[0008] A heat preservation mechanism, which includes a first heat preservation seat, a second heat preservation seat, a first heat preservation pad arranged on the first heat preservation seat, a second heat preservation pad arranged on the second heat preservation seat, and both the first heat preservation pad and the second heat preservation pad are located on the outer wall of the polyurethane oil pipeline body. The first heat preservation seat and the second heat preservation seat are of the same size, and the first heat preservation pad and the second heat preservation pad are of the same size.

[0009] Preferably, a first fastening groove is opened at one end of the first heat preservation seat, and a second fastening groove communicated with the first fastening groove is opened at one end of the second heat preservation seat.

[0010] Preferably, fasteners are arranged inside the first fastening groove and the second fastening groove, and symmetrically distributed lug ears are arranged at the ends of the fasteners. One lug ear is connected to the first heat preservation seat, and the other lug ear is connected to the second heat preservation seat.

[0011] Preferably, through holes symmetrically opened inside the fastener and threaded rods passing through the through holes are further included.

[0012] Preferably, threaded grooves for screwing the threaded rods are respectively formed inside the first heat preservation seat and the second heat preservation seat.

[0013] Preferably, a filter is arranged inside the polyurethane oil pipeline body, and a sewage discharge pipe is arranged on the polyurethane oil pipeline body.

[0014] Preferably, a fixing plate is arranged on the outer wall of the sewage discharge pipe, fixing holes are formed in the fixing plate, and the sewage discharge pipe is connected to the filter.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the designed heat preservation mechanism, the first heat preservation pad and the second heat preservation pad can be wrapped on the polyurethane oil pipeline body, improving the heat preservation performance of the polyurethane oil pipeline and enhancing the low-temperature resistance performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a partially sectional schematic structural diagram of the splicing of the first heat preservation seat and the second heat preservation seat of the present utility model;

[0019] Figure 3 is of the present utility model Figure 2 amplified schematic structural diagram of the P area in;

[0020] Figure 4 is a schematic side view structural diagram of the present utility model;

[0021] In the figure: 1. Polyurethane oil pipeline body; 2. First heat preservation seat; 21. First heat preservation pad; 22. First fastening groove; 3. Sewage discharge pipe; 4. Pipe joint; 5. Second heat preservation seat; 51. Second heat preservation pad; 52. Second fastening groove; 6. Fastener; 61. Lug ear; 7. Threaded groove; 8. Threaded rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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 creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] Please refer to Figures 1-4 , which is the first embodiment of the present utility model. This embodiment provides a low-temperature-resistant polyurethane oil transmission pipe with low oil permeability, including

[0025] The polyurethane oil transmission pipe body 1, and pipe joints 4 symmetrically distributed are arranged at the ends of the polyurethane oil transmission pipe body 1. The pipe joints 4 can connect the pipeline section by section, facilitating installation;

[0026] The heat preservation mechanism, the heat preservation mechanism includes a first heat preservation seat 2, a second heat preservation seat 5, a first heat preservation pad 21 arranged on the first heat preservation seat 2, realizing the addition of the first heat preservation pad 21, a second heat preservation pad 51 arranged on the second heat preservation seat 5, realizing the addition of the second heat preservation pad 51, and both the first heat preservation pad 21 and the second heat preservation pad 51 are located on the outer wall of the polyurethane oil transmission pipe body 1. The first heat preservation pad 21 and the second heat preservation pad 51 are wrapped on the polyurethane oil transmission pipe body 1, increasing the heat preservation performance of the polyurethane oil transmission pipe and increasing the low-temperature resistance performance; the first heat preservation seat 2 and the second heat preservation seat 5 are of the same size, and the first heat preservation pad 21 and the second heat preservation pad 51 are of the same size, and the first heat preservation pad 21 and the second heat preservation pad 51 better cooperate with the polyurethane oil transmission pipe body 1.

[0027] In this embodiment, preferably, a first fastening groove 22 is opened at one end of the first heat preservation seat 2, realizing the opening of the first fastening groove 22, and a second fastening groove 52 communicated with the first fastening groove 22 is opened at one end of the second heat preservation seat 5, realizing the opening of the second fastening groove 52.

[0028] In this embodiment, preferably, fasteners 6 are arranged inside the first fastening groove 22 and the second fastening groove 52, realizing the addition of the fasteners 6, and symmetrically distributed lugs 61 are arranged at the ends of the fasteners 6, realizing the addition of the lugs 61. One lug 61 is connected to the first heat preservation seat 2, and the other lug 61 is connected to the second heat preservation seat 5. By splicing the lugs 61 with the first heat preservation seat 2 and the second heat preservation seat 5, the fixation of the lugs 61 is increased, thereby realizing the stable installation of the fasteners 6.

[0029] In this embodiment, preferably, through holes are symmetrically opened inside the fasteners 6, realizing the opening of the through holes, and threaded rods 8 passing through the through holes are added, realizing the addition of the threaded rods 8.

[0030] In this embodiment, preferably, a filter is provided inside the polyurethane oil pipeline body 1, and a sewage discharge pipe 3 is provided on the polyurethane oil pipeline body 1. The sewage discharge pipe 3 is connected to the filter, and impurities in the transported oil can be filtered out.

[0031] In this embodiment, preferably, a fixing plate is provided on the outer wall of the sewage discharge pipe 3, realizing the addition of the fixing plate, and fixing holes are provided on the fixing plate.

[0032] Embodiment 2

[0033] Please refer to Figures 1-4 , which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment, and the difference is:

[0034] Thread grooves 7 for screwing the threaded rod 8 are provided inside both the first heat preservation seat 2 and the second heat preservation seat 5, which helps to realize the stable installation of the first heat preservation seat 2 and the second heat preservation seat 5, and increases the stability of the installation of the first heat preservation pad 21 and the second heat preservation pad 51.

[0035] The working principle and usage process of the present utility model: Place the first heat preservation seat 2 and the second heat preservation seat 5 outside the polyurethane oil pipeline body 1, so that the first heat preservation pad 21 and the second heat preservation pad 51 cover the polyurethane oil pipeline body 1. The threaded rod 8 is screwed into the thread groove 7, which helps to realize the stable installation of the first heat preservation seat 2 and the second heat preservation seat 5, and increases the stability of the installation of the first heat preservation pad 21 and the second heat preservation pad 51. The heat preservation performance of the polyurethane oil pipeline is increased, and the low-temperature resistance performance is increased.

[0036] Although the embodiments of the present utility model have been shown and described, as described in detail above, 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 utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A low-temperature resistant polyurethane oil pipeline with low oil permeability, characterized in that: including a polyurethane oil pipeline body (1), and pipe joints (4) symmetrically distributed at the ends of the polyurethane oil pipeline body (1); a heat preservation mechanism, which includes a first heat preservation seat (2), a second heat preservation seat (5), a first heat preservation pad (21) arranged on the first heat preservation seat (2), and a second heat preservation pad (51) arranged on the second heat preservation seat (5), and both the first heat preservation pad (21) and the second heat preservation pad (51) are located on the outer wall of the polyurethane oil pipeline body (1). The first heat preservation seat (2) and the second heat preservation seat (5) are of the same size, and the first heat preservation pad (21) and the second heat preservation pad (51) are of the same size.

2. The low-temperature resistant polyurethane oil transmission pipe with low oil permeability according to claim 1, characterized in that: One end of the first heat preservation seat (2) is provided with a first fastening groove (22), and one end of the second heat preservation seat (5) is provided with a second fastening groove (52) communicated with the first fastening groove (22).

3. A low-temperature-resistant polyurethane oil transmission pipe with low oil permeability according to claim 2, characterized in that: Fasteners (6) are arranged inside the first fastening groove (22) and the second fastening groove (52), and lugs (61) symmetrically distributed are arranged at the ends of the fasteners (6). One lug (61) is connected to the first heat preservation seat (2), and the other lug (61) is connected to the second heat preservation seat (5).

4. A low-temperature resistant polyurethane oil transmission pipe with low oil permeability according to claim 3, characterized in that: It also includes through holes symmetrically opened inside the fasteners (6), and threaded rods (8) passing through the through holes.

5. A low-temperature resistant polyurethane oil transmission pipe with low oil permeability according to claim 4, characterized in that: Thread grooves (7) for the threaded rods (8) to screw into are opened inside the first heat preservation seat (2) and the second heat preservation seat (5).

6. The low-temperature resistant polyurethane oil transmission pipe with low oil permeability according to claim 1, wherein: A filter is arranged inside the polyurethane oil pipeline body (1), and a drain pipe (3) is arranged on the polyurethane oil pipeline body (1).

7. A low-temperature resistant polyurethane oil transmission pipe with low oil permeability according to claim 6, characterized in that: A fixing disk is arranged on the outer wall of the drain pipe (3), and fixing holes are opened on the fixing disk. The drain pipe (3) is connected to the filter.

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