Composite polyethylene pipe for natural gas carrier

Abstract

The utility model relates to the technical field of polyethylene pipes, and discloses a composite polyethylene pipe for a natural gas carrier, which solves the problem that the inner wall of a pipeline is easily abraded due to the fact that liquefied natural gas possibly carries some impurities in the transportation process at present, and comprises the pipeline, and a filtering mechanism is arranged at one end of the pipeline. The filtering mechanism comprises a filtering box fixed at one end of the pipeline, an opening is formed in the top of the filtering box, and a top plate is arranged at the top of the filtering box; according to the device, the L-shaped plate is matched with the vertical plate and the top plate, so that the sealing plate is conveniently inserted into the opening, the collecting frame and the filter screen are located in the filter box, the limiting plate is matched with the U-shaped round rod, the two insertion blocks are conveniently inserted into the two insertion grooves respectively, and through the matching of the sleeve block, the side plate and the bolt, the filter screen can be conveniently and quickly inserted into the two insertion grooves. The filter screen and the collecting frame are conveniently fixed in the filter box to filter and collect impurities, so that the inner wall of the pipeline is prevented from being abraded.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyethylene pipes, and particularly relates to a composite polyethylene pipe for a natural gas ship. Background Technique

[0002] A natural gas ship, especially a liquefied natural gas ship, is a ship specially used for transporting liquefied natural gas. Polyethylene pipes are usually used on natural gas ships to transport liquefied natural gas. Polyethylene pipes are pipes made mainly of polyethylene. Polyethylene is a thermoplastic resin with high crystallinity and non-polarity. The appearance of raw polyethylene is milky white, and it is semi-transparent to a certain extent in a thin cross-section. Polyethylene has excellent properties of resisting most chemicals used in life and industry, and at the same time does not absorb moisture and has good water vapor proofness.

[0003] Since some impurities may be carried during the transportation of liquefied natural gas, it is easy to cause wear on the inner wall of the pipeline, making it difficult to ensure the stability and safety of the long-term use of the pipeline. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a composite polyethylene pipe for a natural gas ship, effectively solving the problem that some impurities may be carried during the transportation of liquefied natural gas at present, which easily causes wear on the inner wall of the pipeline.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A composite polyethylene pipe for a natural gas ship, including a pipeline, and a filtering mechanism is provided at one end of the pipeline;

[0006] The filtering mechanism includes a filtering box fixed at one end of the pipeline. An opening is provided at the top of the filtering box. A top plate is provided at the top of the filtering box. A sealing plate and a sealing ring are fixedly installed at the bottom of the top plate. The sealing plate is inserted into the opening. The sealing ring is fixed on the outer side of the sealing plate and is located at the top of the filtering box. A bottom frame located inside the filtering box is fixedly installed at the bottom of the sealing plate. A collection box is fixedly installed on the outer side of the bottom frame. A filter screen is fixedly installed on the inner side of the bottom frame.

[0007] Preferably, two vertical plates are symmetrically and fixedly connected to the top of the filtering box. Two L-shaped plates are symmetrically and fixedly connected to the top of the top plate. The two L-shaped plates are respectively sleeved on the outer sides of the two vertical plates.

[0008] Preferably, a U-shaped round rod is fixedly connected between the two vertical plates. The U-shaped round rod is located below the two L-shaped plates. A limiting plate is movably sleeved on the outer side of the U-shaped round rod. Two insertion blocks are symmetrically and fixedly connected to the side of the limiting plate close to the top plate. Slots are provided on the sides of the two L-shaped plates close to the limiting plate, and the two insertion blocks are respectively inserted into the two slots.

[0009] Preferably, a sleeve block is fixedly sleeved in the middle of the outer side of the U-shaped round rod, the sleeve block is fixed on the top of the filter box, a side plate is fixedly connected to one side of the limiting plate close to the sleeve block, the side plate penetrates through the sleeve block, and a bolt is installed between the sleeve block and the side plate.

[0010] Preferably, the pipeline includes an outer layer, an antistatic layer is arranged inside the outer layer, a reinforcing layer is arranged inside the antistatic layer, and an inner layer is arranged inside the reinforcing layer.

[0011] Preferably, the outer layer is made of polyethylene material, the antistatic layer is made of graphene material, the reinforcing layer is made of metal mesh material, and the inner layer is made of high-density polyethylene material.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) In the present utility model, through the cooperation between the L-shaped plate, the vertical plate and the top plate, it is convenient for the sealing plate to be inserted into the opening, so that the collection frame and the filter net are located inside the filter box, and through the cooperation between the limiting plate and the U-shaped round rod, it is convenient for the two insertion blocks to be inserted into the two slots respectively, and through the cooperation between the sleeve block, the side plate and the bolt, it is convenient to fix the filter net and the collection frame inside the filter box to filter and collect impurities, thereby avoiding abrasion on the inner wall of the pipeline;

[0014] (2) In this new type, by arranging an antistatic layer and a reinforcing layer between the outer layer and the inner layer, and the antistatic layer is made of graphene material, it can effectively eliminate or reduce the static electricity generated inside the pipeline to prevent safety accidents caused by static electricity accumulation or external fire sources, and the reinforcing layer is made of metal mesh material, thereby facilitating the improvement of the strength and rigidity of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0016] In the drawings:

[0017] Figure 1 is a schematic structural diagram of the composite polyethylene pipe for a natural gas ship of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the pipeline of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the filtering mechanism of the present utility model;

[0020] Figure 4 is a schematic disassembled structure diagram of the filter box and the top plate of the present utility model;

[0021] Figure 5Schematic diagram of the top plate structure of the present utility model;

[0022] Figure 6 Schematic diagram of the limit plate structure of the present utility model.

[0023] In the figure: 1. Pipeline; 101. Outer layer; 102. Inner layer; 103. Reinforcing layer; 104. Antistatic layer; 2. Filter mechanism; 201. Filter box; 202. Filter net; 203. Top plate; 204. Limit plate; 205. Opening; 206. Bottom frame; 207. Collection frame; 208. Slot; 209. Sealing plate; 2010. Sealing ring; 2011. L-shaped plate; 2012. Side plate; 2013. Bolt; 2014. U-shaped round rod; 2015. Sleeve block; 2016. Vertical plate; 2017. Insert block. Specific implementation manner

[0024] 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 in 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.

[0025] Embodiment 1, given by Figure 1-2 The present utility model includes a pipeline 1, one end of the pipeline 1 is provided with a filter mechanism 2, the pipeline 1 includes an outer layer 101, an antistatic layer 104 is arranged inside the outer layer 101, a reinforcing layer 103 is arranged inside the antistatic layer 104, an inner layer 102 is arranged inside the reinforcing layer 103, the outer layer 101 is made of polyethylene material, the antistatic layer 104 is made of graphene material, the reinforcing layer 103 is made of metal mesh material, and the inner layer 102 is made of high-density polyethylene material;

[0026] The pipeline 1 is composed of an outer layer 101, an antistatic layer 104, a reinforcing layer 103 and an inner layer 102. The outer layer 101 is made of polyethylene material, enhancing the corrosion resistance and wear resistance of the pipeline 1. The antistatic layer 104 is made of graphene material, effectively eliminating or reducing the static electricity generated inside the pipeline 1. The reinforcing layer 103 is made of metal mesh material, improving the strength and rigidity of the pipeline 1. The inner layer 102 is made of high-density polyethylene material, ensuring that the quality of the liquefied natural gas during transportation is not affected.

[0027] Specifically, by Figure 3-6Given that the filtering mechanism 2 includes a filtering box 201 fixed to one end of the pipeline 1. An opening 205 is provided at the top of the filtering box 201. A top plate 203 is provided at the top of the filtering box 201. A sealing plate 209 and a sealing ring 2010 are fixedly installed at the bottom of the top plate 203. The sealing plate 209 is inserted into the opening 205. The sealing ring 2010 is fixed to the outside of the sealing plate 209 and is located at the top of the filtering box 201. By providing the sealing ring 2010, leakage of liquefied natural gas is avoided. A bottom frame 206 located inside the filtering box 201 is fixedly installed at the bottom of the sealing plate 209. A collecting frame 207 is fixedly installed on the outside of the bottom frame 206. A filter screen 202 is fixedly installed inside the bottom frame 206. Two vertical plates 2016 are symmetrically and fixedly connected to the top of the filtering box 201. Two L-shaped plates 2011 are symmetrically and fixedly connected to the top of the top plate 203. The two L-shaped plates 2011 are respectively sleeved on the outside of the two vertical plates 2016. A U-shaped round rod 2014 is fixedly connected between the two vertical plates 2016. The U-shaped round rod 2014 is located below the two L-shaped plates 2011. A limiting plate 204 is movably sleeved on the outside of the U-shaped round rod 2014. Two insertion blocks 2017 are symmetrically and fixedly connected to the side of the limiting plate 204 close to the top plate 203. Slots 208 are provided on the side of each of the two L-shaped plates 2011 close to the limiting plate 204. The two insertion blocks 2017 are respectively inserted into the two slots 208. A sleeve block 2015 is fixedly sleeved in the middle of the outside of the U-shaped round rod 2014. The sleeve block 2015 is fixed to the top of the filtering box 201. A side plate 2012 is fixedly connected to the side of the limiting plate 204 close to the sleeve block 2015. The side plate 2012 penetrates through the sleeve block 2015. A bolt 2013 is installed between the sleeve block 2015 and the side plate 2012;

[0028] In the use state, first place the filter screen 202 and the collecting frame 207 inside the filtering box 201. At the same time, insert the sealing plate 209 into the opening 205, and the two L-shaped plates 2011 are respectively sleeved on the outside of the two vertical plates 2016 until the sealing ring 2010 is located at the top of the filtering box 201. Then slide the limiting plate 204 along the U-shaped round rod 2014 to drive the two insertion blocks 2017 to move until they are respectively inserted into the two slots 208. Then tighten the bolt 2013 to fix the side plate 2012 and the sleeve block 2015, and fix the position of the limiting plate 204. At the same time, fix the filter screen 202 and the collecting frame 207 inside the filtering box 201 to filter and collect impurities, and avoid abrasion of the inner wall of the pipeline 1. When the bolt 2013 is loosened, the fixation between the side plate 2012 and the sleeve block 2015 is released. The limiting plate 204 can be slid along the U-shaped round rod 2014 so that the two insertion blocks 2017 are respectively removed from the two slots 208. The filter screen 202 and the collecting frame 207 can be taken out of the filtering box 201. Finally, clean the filter screen 202 and process the impurities in the collecting frame 207.

Claims

1. A composite polyethylene pipe for a liquefied natural gas carrier, comprising a pipe (1), characterized in that: One end of the pipeline (1) is provided with a filtering mechanism (2); The filtering mechanism (2) includes a filtering box (201) fixed to one end of the pipeline (1). An opening (205) is provided at the top of the filtering box (201). A top plate (203) is provided at the top of the filtering box (201). A sealing plate (209) and a sealing ring (2010) are fixedly installed at the bottom of the top plate (203). The sealing plate (209) is inserted into the opening (205). The sealing ring (2010) is fixed to the outside of the sealing plate (209) and is located at the top of the filtering box (201). A bottom frame (206) located inside the filtering box (201) is fixedly installed at the bottom of the sealing plate (209). A collection box (207) is fixedly installed on the outside of the bottom frame (206). A filter screen (202) is fixedly installed inside the bottom frame (206).

2. The composite polyethylene pipe for a liquefied natural gas carrier according to claim 1, wherein: Two vertical plates (2016) are symmetrically and fixedly connected to the top of the filtering box (201). Two L-shaped plates (2011) are symmetrically and fixedly connected to the top of the top plate (203). The two L-shaped plates (2011) are respectively sleeved on the outside of the two vertical plates (2016).

3. The composite polyethylene pipe for a liquefied natural gas carrier according to claim 2, wherein: A U-shaped round rod (2014) is fixedly connected between the two vertical plates (2016). The U-shaped round rod (2014) is located below the two L-shaped plates (2011). A limiting plate (204) is movably sleeved on the outside of the U-shaped round rod (2014). Two insertion blocks (2017) are symmetrically and fixedly connected to one side of the limiting plate (204) close to the top plate (203). Slots (208) are provided on one side of the two L-shaped plates (2011) close to the limiting plate (204), and the two insertion blocks (2017) are respectively inserted into the two slots (208).

4. The composite polyethylene pipe for a liquefied natural gas carrier according to claim 3, wherein: A sleeve block (2015) is fixedly sleeved in the middle of the outside of the U-shaped round rod (2014). The sleeve block (2015) is fixed to the top of the filtering box (201). A side plate (2012) is fixedly connected to one side of the limiting plate (204) close to the sleeve block (2015). The side plate (2012) penetrates through the sleeve block (2015). A bolt (2013) is installed between the sleeve block (2015) and the side plate (2012).

5. The composite polyethylene pipe for a natural gas ship according to claim 1, characterized in that: The pipeline (1) includes an outer layer (101). An antistatic layer (104) is provided inside the outer layer (101). A reinforcing layer (103) is provided inside the antistatic layer (104). An inner layer (102) is provided inside the reinforcing layer (103).

6. The composite polyethylene pipe for a liquefied natural gas carrier according to claim 5, wherein: The outer layer (101) is made of polyethylene material. The antistatic layer (104) is made of graphene material. The reinforcing layer (103) is made of metal mesh material. The inner layer (102) is made of high-density polyethylene material.

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