LNG (Liquefied Natural Gas) pipeline cold insulation device

Abstract

The utility model belongs to the technical field of LNG pipeline cold insulation, and particularly relates to an LNG pipeline cold insulation device which comprises a pipeline, a heat insulation layer is arranged on the outer surface of the pipeline, a frame is arranged on one side of the pipeline, a first guide block and a second guide block are movably connected into the frame, and the first guide block is located at the top of the second guide block. The other sides of the first guide block and the second guide block are fixedly connected with a first arc plate and a second arc plate respectively, the ends, away from the first guide block and the second guide block, of the first arc plate and the second arc plate are located on the outer side of the frame, and the first arc plate and the second arc plate correspond to each other and are located at the top and the bottom of the heat insulation layer respectively. According to the LNG pipeline cold insulation device, through the arrangement of the first arc plate and the second arc plate, the heat insulation layer can be firmly installed on the pipeline, the phenomenon that the heat insulation layer is disengaged from the pipeline due to insufficient viscous force of the heat insulation layer is avoided, and then the cold insulation effect of the pipeline can be prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to LNG pipeline cold insulation technical field especially, relate to a LNG pipeline cold insulation device. BACKGROUND

[0002] LNG pipeline is the pipeline system of conveying liquid natural gas, and it is mainly used for transporting LNG from the manufacturer or operator to the consumer, wherein, cold insulation is an important link of LNG transportation, in order to guarantee the pipeline transportation efficiency and safety, LNG pipeline usually adopts the heat insulation layer to carry out heat preservation and insulation to the pipeline.

[0003] At present, LNG pipeline cold insulation system is through the heat preservation and insulation of the pipeline by winding the heat insulation layer on the pipeline surface, and the quality and adhesion of the heat insulation layer are important factors to determine the LNG pipeline cold insulation effect, however, in the long-term use process, with the continuous change of the internal and external temperature of LNG pipeline, the adhesion between the heat insulation layer and the pipeline surface will weaken, thereby causing the separation between them, and further affecting the cold insulation effect of the pipeline, therefore, an LNG pipeline cold insulation device is urgently needed to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of the prior art as pointed out above, the present inventors have made in-depth research, and after a lot of creative labor, the utility model is completed.

[0005] Specifically, the technical problem to be solved by the utility model is to provide a LNG pipeline cold insulation device to solve the technical problem that the separation between the heat insulation layer and the pipeline will occur with the continuous change of the internal and external temperature of LNG pipeline, and further affect the cold insulation effect of the pipeline.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A LNG pipeline cold insulation device, comprising a pipeline, the outer surface of the pipeline is provided with a heat insulation layer, one side of the pipeline is provided with a frame, the inside of the frame is movably connected with a first guide block and a second guide block, the first guide block is located on the top of the second guide block, the other side of the first guide block and the second guide block is respectively fixedly connected with a first arc plate and a second arc plate, the end of the first arc plate and the second arc plate away from the first guide block and the second guide block is located on the outside of the frame, the first arc plate and the second arc plate correspond to each other, and are respectively located on the top and the bottom of the heat insulation layer.

[0008] As an improved technical scheme, the inner side of the frame is provided with a limiting groove, the limiting groove is provided with two groups and corresponds to each other, and the two ends of the first guide block and the second guide block are fixedly connected with limiting blocks matched with the limiting groove.

[0009] As an improved technical scheme, the end, away from the guide rod, of the rotating ring is fixedly connected with a screw rod, one end of the screw rod extends to the outside of the frame and is threadedly connected with the frame, and one side of the frame is provided with a knob, and the end, extending to the outside of the frame, of the screw rod is fixedly connected with the knob.

[0010] As an improved technical scheme, the inner side of the frame is provided with a limiting groove, the limiting groove is provided with two groups and corresponds to each other, and the two ends of the first guide block and the second guide block are fixedly connected with limiting blocks matched with the limiting groove.

[0011] As an improved technical scheme, the two ends of the first arc plate are fixedly connected with clamping blocks, the clamping blocks are in pairs and correspond to each other, and the two ends of the second arc plate are provided with clamping grooves matched with the clamping blocks.

[0012] As an improved technical scheme, the top of the second guide block is fixedly connected with a clamping block, and the inner side of the first guide block is provided with a connecting groove matched with the clamping block.

[0013] As an improved technical scheme, the bottom of the frame is fixedly connected with a base, and the four corners of the base are fixedly connected with connecting blocks.

[0014] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:

[0015] 1. According to the present application, the first arc plate and the second arc plate are arranged, so that the heat insulation layer can be firmly installed on the pipeline, the phenomenon that the heat insulation layer is detached from the pipeline due to insufficient adhesion is avoided, and the cold insulation effect of the pipeline can be avoided.

[0016] 2. According to the present application, the screw rod and the rotating ring are arranged, so that the rotating ring has a self-locking force, and the installation and disassembly of the heat insulation layer are more simple, in this way, the first arc plate and the second arc plate can be driven by only rotating the knob during operation, and the working efficiency can be increased.

[0017] 3. According to the present application, the base and the frame are arranged in an integrated manner, so that the number of frames used can be reasonably adjusted according to the length of the pipeline, and the waste of materials can be avoided, and through the arrangement of the connecting blocks, each group of frames can be connected through the base, so that the stability thereof can be increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] Figure 1 It is a whole structure schematic view of the LNG pipeline cold keeping device of the present application.

[0020] Figure 2 It is a back structure schematic view of the LNG pipeline cold keeping device of the present application.

[0021] Figure 3 It is a frame and first arc plate related structure schematic view of the LNG pipeline cold keeping device of the present application.

[0022] Figure 4 It is a frame and rotating ring related structure explosion schematic view of the LNG pipeline cold keeping device of the present application.

[0023] Figure 5 It is a frame and rotating ring cross-section structure schematic view of the LNG pipeline cold keeping device of the present application.

[0024] Figure 6 It is a first arc plate and second arc plate explosion structure schematic view of the LNG pipeline cold keeping device of the present application.

[0025] Figure 7 It is a screw rod and rotating ring related structure schematic view of the LNG pipeline cold keeping device of the present application.

[0026] Explanation of reference signs:

[0027] 1, pipeline; 2, heat insulation layer; 3, frame; 4, first guide block; 401, second guide block; 5, first arc plate; 6, second arc plate; 7, rotating ring; 8, arc-shaped groove; 9, guide rod; 10, screw rod; 11, knob; 12, limiting groove; 13, limiting block; 14, clamping block; 15, clamping groove; 16, clamping block; 17, base; 18, connecting block; 19, sliding groove. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0032] like Figures 1 to 7 As shown in the figure, this embodiment provides an LNG pipeline insulation device, which includes a pipeline 1. The outer surface of the pipeline 1 is provided with an insulation layer 2. A frame 3 is provided on one side of the pipeline 1. A first guide block 4 and a second guide block 401 are movably connected inside the frame 3. The first guide block 4 is located on top of the second guide block 401. A first arc plate 5 and a second arc plate 6 are respectively fixedly connected to the other side of the first guide block 4 and the second guide block 401. The ends of the first arc plate 5 and the second arc plate 6 away from the first guide block 4 and the second guide block 401 are located on the outside of the frame 3. The first arc plate 5 and the second arc plate 6 correspond to each other and are located at the top and bottom of the insulation layer 2, respectively. The insulation layer 2 can be firmly fixed to the pipeline 1, thereby preventing the insulation layer 2 from separating from the pipeline 1.

[0033] The frame 3 is internally connected to a rotating ring 7, which has an arc-shaped groove 8 inside. The frame 3 also has a sliding groove 19 inside, which facilitates the movement of the guide rod 9 and avoids interference with its movement caused by the frame 3. There are two sets of arc-shaped grooves 8 and sliding grooves 19, which correspond to each other. The guide rod 9 is movably connected inside the arc-shaped grooves 8. The end of the guide rod 9 away from the arc-shaped groove 8 passes through the frame 3 through the sliding groove 19 and is fixedly connected to the first guide block 4 and the second guide block 401 respectively. The guide rod 9 can drive the first guide block 4 and the second guide block 401 to move closer or further apart with the movement of the arc-shaped groove 8.

[0034] The screw rod 10 is fixedly connected to the end of the rotating ring 7 away from the guide rod 9, and one end of the screw rod 10 extends to the outside of the frame 3 and is threadedly connected thereto. One side of the frame 3 is provided with a knob 11, and one end of the screw rod 10 extending to the outside of the frame 3 is fixedly connected with the knob 11, so that the driving operation of the rotating ring 7 can be facilitated, and the screw rod 10 is threadedly connected with the frame 3, so that self-locking can be achieved.

[0035] The inside of the frame 3 is provided with a limiting groove 12, and the limiting groove 12 is provided with two groups corresponding to each other. The two ends of the first guide block 4 and the second guide block 401 are fixedly connected with limiting blocks 13 matched with the limiting groove 12, so that the first arc plate 5 and the second arc plate 6 can be more stable during lifting.

[0036] The two ends of the first arc plate 5 are fixedly connected with clamping blocks 14, and the clamping blocks 14 are in pairs and correspond to each other. The two ends of the second arc plate 6 are provided with clamping grooves 15 matched with the clamping blocks 14, so that the first arc plate 5 and the second arc plate 6 can be more stable during connection, thereby ensuring the stability of the installation of the heat insulation layer 2.

[0037] The top of the second guide block 401 is fixedly connected with a clamping block 16, and the inside of the first guide block 4 is provided with a connecting groove matched with the clamping block 16, so that the first guide block 4 and the second guide block 401 can be more stably connected, thereby ensuring the stability of the installation of the heat insulation layer 2.

[0038] The bottom of the frame 3 is fixedly connected with a base 17, and the four corners of the base 17 are fixedly connected with connecting blocks 18, so that the connecting blocks 18 can be fixedly connected with other groups of bases 17, and the base 17 can ensure the stability of the frame 3.

[0039] In use, the heat insulation layer 2 is adhered to the pipeline 1, then the knob 11 is rotated to drive the screw rod 10 to rotate, and the rotating ring 7 is driven to rotate by the screw rod 10, so that the arc-shaped groove 8 in the rotating ring 7 rotates with the rotating ring 7. In this process, the two groups of guide rods 9 in the arc-shaped groove 8 will move closer to or away from each other with the movement of the arc-shaped groove 8. When the rotating ring 7 is rotated clockwise, the guide rods 9 will sequentially contact the innermost side of the arc-shaped groove 8 and the outermost side of the arc-shaped groove 8 according to the shape of the arc-shaped groove 8, so that the two groups of guide rods 9 drive the first guide block 4 and the second guide block 401 to move closer to each other, and drive the first arc plate 5 and the second arc plate 6 to move closer to each other, until the clamping blocks 14 and the clamping grooves 15, and the clamping blocks 16 and the connecting grooves are completely overlapped, and the fixing operation of the heat insulation layer 2 can be completed. When disassembling, the screw rod 10 is rotated in the opposite direction.

[0040] It should be understood that the use of these embodiments is by way of illustration only and is not intended to limit the scope of the present application. In addition, it should also be understood that, after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all of these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. An LNG pipeline cold insulation apparatus, characterized by: The utility model provides a pipeline heat insulation device, including pipeline (1), the outer surface of pipeline (1) is equipped with heat insulation layer (2), one side of pipeline (1) is equipped with frame (3), the inside movable joint of frame (3) has first guide block (4) with second guide block (401), and first guide block (4) is located the top of second guide block (401), and the other side of first guide block (4) and second guide block (401) is fixedly connected with first arc plate (5) and second arc plate (6) respectively, and the one end of first arc plate (5) and second arc plate (6) away from first guide block (4) and second guide block (401) is located the outside of frame (3), and first arc plate (5) and second arc plate (6) correspond to each other respectively and are located the top and bottom of heat insulation layer (2).

2. The LNG pipeline cryogenic plant of claim 1, wherein: The inside rotatable connection of frame (3) has rotary ring (7), the inside of rotary ring (7) is equipped with arc slot (8), the inside of frame (3) is equipped with sliding slot (19), arc slot (8) and sliding slot (19) are equipped with two groups, and correspond to each other, the inside of two groups arc slot (8) is movably connected with guide rod (9), and the one end of two groups guide rod (9) away from arc slot (8) penetrates frame (3) through sliding slot (19) and is fixedly connected with first guide block (4) and second guide block (401) respectively.

3. The LNG pipeline cryogenic plant of claim 2, wherein: The one end of screw rod (10) away from guide rod (9) of rotary ring (7) is fixedly connected, and the one end of screw rod (10) extends to the outside of frame (3) and is threadedly connected therewith, and one side of frame (3) is equipped with knob (11), and the one end of screw rod (10) extends to the outside of frame (3) and is fixedly connected with knob (11).

4. The LNG pipeline cryogenic plant of claim 3, wherein: The inside of frame (3) is equipped with limiting slot (12), and the limiting slot (12) is equipped with two groups, and correspond to each other, and the two ends of first guide block (4) and second guide block (401) are fixedly connected with the limiting block (13) matched with limiting slot (12).

5. The LNG pipeline cryogenic plant of claim 4, wherein: The two ends of first arc plate (5) are fixedly connected with clamping block (14), and clamping block (14) is two groups, and correspond to each other, and the two ends of second arc plate (6) are equipped with clamping groove (15) matched with clamping block (14).

6. The LNG pipeline cryogenic plant of claim 5, wherein: The top of second guide block (401) is fixedly connected with clamping block (16), and the inside of first guide block (4) is equipped with connecting groove matched with clamping block (16).

7. The LNG pipeline cryogenic plant of claim 6, wherein: The bottom of frame (3) is fixedly connected with base (17), and the four corners of base (17) are fixedly connected with connecting block (18).

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