Split type pipeline heat preservation module with aerogel heat insulation layer

Abstract

The utility model discloses a split type pipeline heat preservation module with an aerogel heat insulation layer, which relates to the field of pipeline heat preservation equipment, and adopts the technical scheme that the split type pipeline heat preservation module comprises a sleeve body, and a plurality of groups of arc-shaped pipe pieces which are sequentially and rotatably connected end to end of the sleeve body, the shells of every two adjacent pipe pieces are rotationally connected through a hinge structure. An elastic buffer layer, a reflective aluminum foil layer and an aerogel heat insulation layer are sequentially arranged on the inner wall of the shell of each group of duct pieces, and the elastic buffer layer is bonded and fixed with the inner wall of the shell; a plurality of hasps are fixedly arranged on the shell located at one end, a plurality of connecting rings are arranged on the shell located at the other end, and when the sleeve body is arranged on the outer side of a pipeline in a sleeving mode, the hasps are fixedly connected with the connecting rings. The utility model has the beneficial effects that the modular detachable design is adopted, so that the mounting and the dismounting are convenient and fast, and the thermal insulation performance and the construction efficiency of the pipeline joint coating are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline heat preservation equipment field, especially a split type pipeline heat preservation module with aerogel thermal barrier layer. BACKGROUND

[0002] In the pipeline engineering of petroleum, chemical industry, heat supply and the like, the treatment of the pipeline joint coating place is the key link for ensuring the integrity, safety and high efficiency operation of the pipeline system. The joint coating place usually refers to the pipeline welding joint, flange connecting place, elbow and tee joint connecting part and the like. These areas often become the weak points of the pipeline system due to construction or special structure.

[0003] The traditional joint coating treatment method mainly includes anticorrosion layer brushing, heat preservation layer filling and outer protection layer installation, but the following problems still exist:

[0004] The traditional joint coating needs to cut the heat preservation material on site and manually fill the foaming agent, so the construction efficiency is low and the technical requirement for workers is high;

[0005] The anticorrosion and heat preservation performance of the joint coating place is often lower than that of the pipeline main body, so the heat bridge effect or corrosion hidden danger is easily formed, which leads to the increase of local heat loss or the shortening of pipeline service life;

[0006] When the joint coating place is damaged, the heat preservation layer and the anticorrosion layer need to be removed as a whole, so the maintenance cost is high and the time is long. INVENTION CONTENTS

[0007] In view of the above technical problems, the utility model provides a split type pipeline heat preservation module with aerogel thermal barrier layer.

[0008] The technical scheme is that a sleeve body is provided, a plurality of groups of arc-shaped pipe pieces are sequentially rotationally connected at the head and tail of the sleeve body, each group of pipe pieces comprises an arc-shaped shell, and the shells of adjacent two pipe pieces are rotationally connected with each other through a hinge structure.

[0009] An elastic buffer layer, a reflective aluminum foil layer and an aerogel thermal barrier layer are sequentially arranged on the inner wall of the shell of each group of pipe pieces, and the elastic buffer layer is adhesively fixed to the inner wall of the shell.

[0010] A plurality of buckles are fixedly arranged on one shell at one end, and a plurality of connecting rings are arranged on one shell at the other end, and when the sleeve body is sleeved on the outside of the pipeline, the buckles are fixedly connected with the connecting rings.

[0011] Preferably, the buckle comprises a mounting seat fixedly arranged on the shell, a control handle is rotationally arranged on the mounting seat, a hook is rotationally arranged at the middle part of the control handle, the free end of the hook is in the shape of "J", and the hook is clamped with the connecting ring.

[0012] Preferably, the aerogel heat insulation layer and the reflective aluminum foil layer, and the reflective aluminum foil layer and the elastic buffer layer are adhered by high-temperature resistant adhesive.

[0013] Preferably, the outer side of the sleeve body is sleeved with a heat shrink tube.

[0014] Preferably, a corrugated aerogel sheet layer is arranged on the side wall of each pipe piece.

[0015] The technical scheme provided by the embodiment of the utility model has the beneficial effects that: through the modularized detachable design, the installation and dismounting are convenient and fast, and the heat preservation performance and construction efficiency of the pipe joint are obviously improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the installation state schematic view of the embodiment of the utility model.

[0017] Figure 2 It is the A part enlarged schematic view of Figure 1

[0018] Figure 3 It is the whole structure schematic view of the embodiment of the utility model.

[0019] Figure 4 It is the B part enlarged schematic view of Figure 3

[0020] Figure 5 It is the pipe piece structure schematic view of one group.

[0021] Figure 6 It is the buckle structure schematic view of the embodiment of the utility model.

[0022] Among them, the sign is: 1, sleeve body, 2, pipe piece, 3, shell, 4, elastic buffer layer, 5, reflective aluminum foil layer, 6, aerogel heat insulation layer, 7, buckle, 8, connecting ring, 9, mounting seat, 10, control handle, 11, hook, 12, heat preservation pipeline. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0024] It should be noted that the embodiments in the utility model creation and the features in the embodiments can be combined with each other without conflict.

[0025] ​​In the description of the utility model, it needs to be understood that the directions or position relations indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the utility model, it needs to be understood that the terms "installation", "connection", "connection" should be understood in a broad sense unless otherwise specified and limited, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Embodiment 1

[0028] Referring to Figures 1 to 6 The utility model provides a split type pipeline heat preservation module with aerogel heat insulation layer, including sleeve body 1, sleeve body 1 head-to-tail rotation connection's several groups arc pipe piece 2, the number of pipe piece 2 is at least two groups, preferably 3 groups, each group pipe piece 2 includes arc shell 3, and the shell 3 of adjacent two pipe piece 2 is rotatably connected through the hinge structure each other;

[0029] The inner wall of the shell 3 of each group of pipe pieces 2 is sequentially provided with an elastic buffer layer 4, a reflective aluminum foil layer 5 and an aerogel heat insulation layer 6, and the elastic buffer layer 4 is adhesively fixed with the inner wall of the shell 3.

[0030] The aerogel heat insulation layer 6 is a silica aerogel felt (thickness 5-30mm), a core heat insulation layer, which utilizes the aerogel nano-porous structure (porosity >90%) to block heat conduction, with a low thermal conductivity coefficient of 0.018W / (m·K); directly adheres to the surface of the pipeline, and can withstand a temperature range of-200℃~650℃.

[0031] The inner surface of the aerogel thermal insulation layer 6 is pressed to form a honeycomb microstructure (hexagonal aperture 1-2 mm) to increase the contact area with the pipeline and reduce the interfacial thermal resistance;

[0032] The reflective aluminum foil layer 5 is a high-purity aluminum foil (thickness 0.1-0.5 mm, surface embossed to enhance adhesion);

[0033] Reflecting infrared radiation heat (reflectivity ≥ 95%), reducing the loss of radiation heat transfer;

[0034] As a waterproof barrier, it prevents moisture penetration from causing the performance of the aerogel to deteriorate;

[0035] The elastic buffer layer 4 is mainly composed of silicone rubber or ceramic fiber composite pad (thickness 5-30 mm), which absorbs pipeline vibration and thermal expansion and contraction stress, prevents the aerogel layer from being pulverized due to mechanical impact, provides flexible support to ensure that the shell 3 is closely attached to the composite layer, and reduces the interfacial thermal resistance.

[0036] The aerogel barrier conduction + aluminum foil reflection radiation + buffer layer reduces the interfacial thermal resistance to achieve full heat transfer path suppression;

[0037] A plurality of buckles 7 are fixedly arranged on one of the shells 3 at one end, and a plurality of connecting rings 8 are arranged on the other shell 3 at the other end. When the sleeve body 1 is sleeved on the outside of the pipeline, the buckles 7 are fixedly connected with the connecting rings 8.

[0038] The buckle 7 includes a mounting seat 9 fixedly arranged on the shell 3, a control handle 10 rotatably arranged on the mounting seat 9, and a hook 11 rotatably arranged at the middle part of the control handle 10. The free end of the hook 11 is in the shape of "J" and is clamped with the connecting ring 8.

[0039] A plurality of groups of arc-shaped pipe pieces 2 of the sleeve body 1 are wrapped on the outside of the pipeline, the buckle 7 on one end of the pipe piece 2 is butted with the connecting ring 8 on the other end of the pipe piece 2, and the free end of the hook 11 is inserted into the connecting ring 8 by pushing the control handle 10;

[0040] The control handle 10 is rotated to the locking position, the "J" shaped free end of the hook 11 is clamped with the connecting ring 8, and the fixed connection of the buckle 7 with the connecting ring 8 is completed;

[0041] The operator can complete the connection and separation of the buckle 7 with the connecting ring 8 without tools, which significantly improves the construction efficiency.

[0042] The aerogel thermal insulation layer 6 and the reflective aluminum foil layer 5, and the reflective aluminum foil layer 5 and the elastic buffer layer 4 are all bonded by high-temperature resistant adhesive.

[0043] The high-temperature resistant adhesive is a silicone rubber-based adhesive, which can withstand a temperature range of -50°C to 300°C. The high-temperature resistant adhesive has stable bonding performance in high-temperature environment, avoiding interlayer peeling.

[0044] The outer side of the sleeve body 1 is sleeved with a heat shrinkable tube.

[0045] Before pipe welding, the heat shrinkable tube is sleeved on the outer side of the pipe, when the pipe welding is completed, the sleeve body 1 is installed on the pipe joint, and the heat shrinkable tube is moved to the outer side of the sleeve body 1,

[0046] The heat shrinkable tube tightly wraps the thermal insulation module after being heated and shrunk, forms a continuous and seamless protection layer, and effectively prevents water vapor, rainwater or other liquids from penetrating into the thermal insulation layer.

[0047] The heat shrinkable tube can be heated and shrunk by a hot air gun, and the construction is simple and convenient without special tools or complex processes, thereby improving the construction efficiency.

[0048] The corrugated aerogel sheet layer is arranged on the side wall of each pipe piece 2.

[0049] The corrugated aerogel sheet layer is arranged at the axial two ends and the radial two ends of the pipe piece 2, the corrugated design enables the aerogel sheet layer to have a certain elasticity in the radial direction, allows the aerogel sheet layer to freely stretch and shrink in the axial and radial directions of the pipe, effectively absorbs the displacement caused by thermal expansion and cold contraction, and fills the gap between the pipe pieces 2 and the gap between the sleeve body 1 and the original pipe thermal insulation layer, further blocks the heat conduction path.

[0050] In use, after the thermal insulation pipe 12 is welded, the weld or the connecting portion is subjected to surface treatment (such as sand blasting rust removal), and then corrosion-resistant paint or corrosion-resistant adhesive tape is coated or wound, the anticorrosion layer is restored, a plurality of groups of arc-shaped pipe pieces 2 are connected through the hinge mechanism, the pipe joint is wrapped, the buckle 7 of one end pipe piece is aligned with the connecting ring 8 of the other end pipe piece, the control handle 10 is rotated to make the hook 11 clamped into the connecting ring 8, and locking is completed.

[0051] The heat shrinkable tube is sleeved on the outer side of the sleeve body, is heated and shrunk by a hot air gun, and forms a sealed protection layer.

[0052] The above merely describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A split-type pipe insulation module with an aerogel insulation layer, comprising a sleeve body (1), characterized in that, The sleeve body (1) is connected to several sets of arc-shaped tube segments (2) in a sequential rotational manner. Each set of tube segments (2) includes an arc-shaped outer shell (3). The outer shells (3) of two adjacent tube segments (2) are connected to each other by a hinge structure. Each set of the tube segments (2) has an elastic buffer layer (4), a reflective aluminum foil layer (5) and an aerogel insulation layer (6) sequentially provided on the inner wall of the outer shell (3), and the elastic buffer layer (4) is bonded and fixed to the inner wall of the outer shell (3); Several buckles (7) are fixedly provided on one of the outer shells (3) at one end, and several connecting rings (8) are provided on one of the outer shells (3) at the other end. When the sleeve body (1) is sleeved on the outside of the pipe, the buckles (7) are fixedly connected to the connecting rings (8).

2. The split-type pipe insulation module with an aerogel insulation layer according to claim 1, characterized in that, The buckle (7) includes a mounting base (9) fixedly mounted on the outer shell (3), a control handle (10) is rotatably mounted on the mounting base (9), and a hook (11) is rotatably mounted in the middle of the control handle (10). The free end of the hook (11) is "J" shaped and engages with the connecting ring (8).

3. The split-type pipe insulation module with an aerogel insulation layer according to claim 1, characterized in that, The aerogel insulation layer (6) and the reflective aluminum foil layer (5), as well as the reflective aluminum foil layer (5) and the elastic buffer layer (4), are bonded together with a high-temperature resistant adhesive.

4. The split-type pipe insulation module with an aerogel insulation layer according to claim 1, characterized in that, A heat shrink tubing is fitted on the outside of the sleeve body (1).

5. The split-type pipe insulation module with an aerogel insulation layer according to claim 1, characterized in that, A corrugated aerogel sheet layer is provided on the sidewall of each of the tube segments (2).

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