Integrated coating heat insulation material of heat insulation pipe

Abstract

The utility model discloses an integrated coating heat insulation material of a heat insulation pipe and belongs to the technical field of heat insulation materials. Which comprises a heat insulation body which is of a multi-layer attached layered structure, and is characterized in that the heat insulation body comprises at least one reflecting layer and at least one heat insulation layer, and further comprises a fixing piece used for fixing the layered structure into a whole. According to the integrated cladding heat insulation material of the heat insulation pipe, the layered structures are fixed into a whole through the fixing pieces, so that the problems of deviation, staggered layers and the like between the layered structures cannot occur during cladding, and the performance of the heat insulation body is ensured as the problem of deviation between the layered structures of the heat insulation body cannot occur. The technical mistakes of manufacturers of the heat insulation pipes and suppliers of the heat insulation materials for solving the heat insulation material coating problem in the heat insulation pipe manufacturing field are solved, and for the heat insulation pipe manufacturing field, the heat insulation materials can exert the performance to the maximum degree with the minimum cost.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation materials, and particularly relates to an integral covering heat insulation material for a heat insulation pipe. Background Technique

[0002] The heat insulation pipe is one of the important materials for the exploitation and transportation of petroleum, geothermal energy, etc. Generally, for the production of a heat insulation pipe, after the production of the pipe body is completed, the outer part of the pipe body is subjected to secondary processing, and the heat insulation material is covered on the outer part of the pipe body. Therefore, for the secondary packaging of the heat insulation material on the pipe surface, making the heat insulation material reliably covered on the outer wall of the pipe body plays an important role in the whole production process of the heat insulation pipe.

[0003] In the prior art, for the packaging of the surface material of the heat insulation pipe, the commonly adopted method is to lift both ends of the pipe to make the whole pipe suspended, and then further drive the pipe to rotate by the lifting devices at both ends, and then multiple winding materials walk along the axial direction of the pipe, and the winding materials are wrapped around the outer wall of the steel pipe. The existing packaging method has the following problems in actual operation: The heat insulation material is generally composed of multiple layers in a composite manner, such as including aluminum foil, aerogel felt, etc. Since the pipe is relatively long, it is difficult to achieve the consistency of the overlapping degree of each layer during the covering process, and as the covering progresses, the possibility of deviation between each layer of materials will gradually increase, and it is also impossible to automatically calculate and match the rotation speed of the steel pipe and the traveling speed of the wrapping material, resulting in low automation.

[0004] The applicant of the present application believes that the reasons for the above problems are as follows: After purchasing the heat-insulating materials provided by the suppliers, the manufacturers of heat-insulating pipes are more concerned about how to improve the coating process to better coat the heat-insulating materials on the surface of steel pipes. Due to cost reasons, the manufacturers of heat-insulating materials generally do not customize the products according to the actual usage requirements on-site of the purchasers. Instead, they often only focus on the research and development of the heat-insulating materials themselves, that is, by changing the structure (or material) and processing technology of the heat-insulating materials themselves to make the heat-insulating materials have more excellent performance, such as the technical solutions recorded in the following Chinese invention patents: the technical solution recorded in the Chinese invention patent with the application number 201510556212.2, the application date of September 5, 2015, and the patent name of "A Structure of a New Type of Flame Retardant Heat Insulating and Heat Preserving Material"; the technical solution recorded in the Chinese invention patent with the application number 201811373581.8, the application date of November 1, 2018, and the patent name of "A Heat Insulating Material for Steam Pipelines and Its Construction Technology"; the technical solution recorded in the Chinese invention patent with the application number 202310705199.7, the application date of June 14, 2023, and the patent name of "A High Temperature Resistant Heat Insulating Material and Its Preparation Method"; and the technical solution recorded in the Chinese invention patent with the application number 202320433281.4, the application date of March 9, 2023, and the patent name of "An Environmentally Friendly Heat Insulating Pad".

[0005] Therefore, due to various reasons such as cost, the manufacturers of heat-insulating pipes and the manufacturers of heat-insulating materials have fallen into their respective R & D misunderstandings, resulting in the fact that the heat-insulating materials cannot be reasonably and effectively wrapped around the pipes, thus making it difficult to fully exert their performance.

[0006] The Chinese utility model patent with the application number 201620927185.5 and the application date of August 24, 2016, and the patent name of "A Heat Insulating Structure" also records a technical solution. This technical solution designs the heat-insulating structure as a whole, which can solve the problem in the prior art that it is difficult to reasonably and effectively wrap pipes in the heat-insulating pipe industry. However, this technical solution includes a coating layer, and a heat-insulating core material is arranged inside the coating layer. The heat-insulating core material and the coating layer are sewn and fixed, and then a reflective layer is bonded to the surface of the coating layer through an adhesive. Although in this technical solution, a high-temperature resistant sealing adhesive is used as the adhesive, it is found through actual tests that when the heat-insulating materials are fixed by chemical methods such as adhesives and used under high-temperature conditions for a long time, the adhesive itself will still deteriorate, thus affecting the bonding performance, and the bonding material will also damage the layered structure itself, which will not only have a certain impact on the service life of the heat-insulating pipe but also pose certain potential hazards.

[0007] Therefore, it has become an urgent problem to be solved in this field to design a technical solution that can be applied to the heat insulation pipe industry, can reasonably and effectively wrap the pipe, can effectively extend the service life of the heat insulation pipe, and can enable the heat insulation material to fully exert its characteristics. Summary of the Invention

[0008] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide an integrated wrapping heat insulation material for a heat insulation pipe, in which a layered structure is fixed into a whole by fixing members, so that problems such as deviation and misalignment between the layered structures will not occur during wrapping, and since there is no deviation problem between the layers of the heat insulation body, the performance of the heat insulation body is ensured.

[0009] The technical solution adopted by the present utility model to solve its technical problems is: the integrated wrapping heat insulation material for the heat insulation pipe includes a heat insulation body, and the heat insulation body is a multi-layered laminated structure, and is characterized in that: the heat insulation body includes at least one reflective layer and at least one heat insulation layer, and the heat insulation body further includes fixing members for fixing the layered structure into a whole.

[0010] Preferably, the fixing members are arranged on the circumference and / or inside of the heat insulation body.

[0011] Preferably, the fixing members are sutures arranged on the circumference and / or inside of the heat insulation body, and the sutures penetrate through the layered structure of the heat insulation body.

[0012] Preferably, the heat insulation body includes a first heat insulation layer, a first reflective layer and a second heat insulation layer arranged in sequence.

[0013] Preferably, the heat insulation body further includes a second reflective layer attached to the second heat insulation layer and a third heat insulation layer attached to the second reflective layer.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] In the integrated wrapping heat insulation material for the heat insulation pipe, problems such as deviation and misalignment between the layered structures will not occur during wrapping, and since there is no deviation problem between the layers of the heat insulation body, the performance of the heat insulation body is ensured.

[0016] The integrated wrapping heat insulation material for the heat insulation pipe solves the technical misunderstandings of the heat insulation pipe manufacturers and heat insulation material suppliers respectively in solving the problem of wrapping heat insulation materials in the field of heat insulation pipe manufacturing. For the field of heat insulation pipe manufacturing, the heat insulation material can maximize its performance with the least cost.

[0017] The multi-layer structure of the heat insulation body realizes the fixation of the multi-layer structure physically, rather than chemically (such as gluing). The purpose of realizing the fixation of the multi-layer structure without using chemical methods is as follows: it can avoid damage (such as corrosion) to the layered structure itself caused by the bonding material. In addition, high-temperature media often need to be conveyed inside the heat insulation pipe, which also effectively avoids the influence of high-temperature media on the bonding performance of the bonding material or causing the deterioration of the bonding material itself, eliminating potential safety hazards during subsequent use. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the integrated covering heat insulation material of the heat insulation pipe in Embodiment 1.

[0019] Figure 2 It is Figure 1 The enlarged sectional view taken along the line A-A in

[0020] Figure 3 It is the enlarged sectional view taken along the line A-A corresponding to Figure 1 in Embodiment 2.

[0021] Figure 4 It is the enlarged sectional view taken along the line A-A corresponding to Figure 1 in Embodiment 3.

[0022] Figure 5 It is a schematic diagram of the integrated covering heat insulation material of the heat insulation pipe in Embodiment 4.

[0023] Wherein: 1. Heat insulation body; 2. Suture; 3. First heat insulation layer; 4. First reflection layer; 5. Second heat insulation layer; 6. Second reflection layer; 7. Third heat insulation layer. Detailed Description of the Preferred Embodiment

[0024] Figures 1-2 This is the preferred embodiment of the present utility model. The following further describes the present utility model in conjunction with the attached Figures 1-5 drawings.

[0025] Embodiment 1:

[0026] As Figure 1 shown, an integrated covering heat insulation material (hereinafter referred to as heat insulation material) for a heat insulation pipe includes a rectangular heat insulation body 1. The heat insulation body 1 is rectangular, and the size of the heat insulation body 1 is set arbitrarily according to the pipe to be covered. The length of the heat insulation body 1 is the same as the length of the corresponding pipe, and the width of the heat insulation body 1 is equal to (or greater than) the outer diameter of the corresponding pipe.

[0027] Combined with Figure 2, in this heat-insulating material, the heat-insulating body 1 has a layered structure. In this embodiment, the heat-insulating body 1 includes three layers arranged up and down: the first heat-insulating layer 3, the first reflective layer 4, and the second heat-insulating layer 5. The first heat-insulating layer 3 and the second heat-insulating layer 5 are made of aerogel felt or fiberglass material, and the first reflective layer 4 is made of aluminum foil. The thickness of the first heat-insulating layer 3 and the second heat-insulating layer 5 is 1 to 4 mm. Since the first reflective layer 4 is made of aluminum foil, its thickness can be ignored.

[0028] In this heat-insulating material, the multi-layer structure of the heat-insulating body 1 is fixed into one body by the suture 2 around the circumference of the heat-insulating body 1. The fixation of the multi-layer structure is achieved physically instead of chemically (such as gluing). The purpose of this is to avoid damage (such as corrosion) to the layered structure itself caused by the bonding material. In addition, high-temperature media often need to be transported inside the heat-insulating pipe, which also effectively avoids the influence of high-temperature media on the bonding performance of the bonding material or causing the deterioration of the bonding material itself, eliminating potential safety hazards during subsequent use. Besides the suture 2, the multi-layer structure of the heat-insulating body 1 can also be fixed by other means, such as rivets.

[0029] The specific operation process is as follows:

[0030] According to the length and outer diameter of the pipe, cut the first heat-insulating layer 3, the first reflective layer 4, and the second heat-insulating layer 5 of corresponding sizes. After laminating the first heat-insulating layer 3, the first reflective layer 4, and the second heat-insulating layer 5 up and down, sew the first heat-insulating layer 3, the first reflective layer 4, and the second heat-insulating layer 5 into one body through the suture 2 around the circumference to form the heat-insulating body 1.

[0031] When the heat-insulating body 1 is wrapped around the surface of the pipe, since the layered structure of the heat-insulating body 1 has been sewn into one body by the suture 2, there will be no problems such as deviation or misalignment between the layered structures during wrapping. After wrapping is completed, the heat-insulating body 1 and the pipe are fixed again by an external bandage. And because there will be no deviation problem between the layers of the heat-insulating body 1, the performance of the heat-insulating body 1 is ensured.

[0032] The first reflective layer 4 in the heat-insulating body 1 plays a role in reflecting thermal radiation, reflecting the heat radiated outward from the pipe back to the pipe itself. The first heat-insulating layer 3 and the second heat-insulating layer 5 play the roles of isolation and heat insulation, isolating the first reflective layer 4 from other reflective layers, and at the same time increasing the thermal resistance to prevent heat transfer.

[0033] And it should be specifically noted here that when the layered heat insulation body 1 is wrapped around the surface of the pipe, there will inevitably be a problem that the size required to be wrapped by the outer layer material is larger than that required by the inner layer material. Therefore, theoretically, there will be a situation of staggered layers at the joint on the pipe surface. However, since the thickness of the inner layer material and the outer layer material (the first heat insulation layer 3 and the second heat insulation layer 5) is relatively thin, the width of the staggered layer is theoretically small. And because the inner layer material and the outer layer material have a certain toughness and have been fixed by the suture 2, the possibility of staggered layers at the joint of the heat insulation body 1 on the pipe surface is maximally avoided.

[0034] As can be seen from the above, through the heat insulation material of the present application, the technical misunderstandings existing in the field of manufacturing heat insulation pipes in solving the problem of covering heat insulation materials are solved. For the field of manufacturing heat insulation pipes, the heat insulation material can maximize its performance with the least cost.

[0035] Embodiment 2:

[0036] The difference between this embodiment and Embodiment 1 is that the layered structure of the heat insulation body 1 is different from that of Embodiment 1. As Figure 3 shown, in this embodiment, the second heat insulation layer 5 is omitted, and only the first heat insulation layer 3 and the first reflective layer 4 are provided. When the heat insulation body 1 of this embodiment is wrapped with the pipe, the first reflective layer 4 is in contact with the surface of the pipe.

[0037] Embodiment 3:

[0038] The difference between this embodiment and Embodiment 1 is that the layered structure of the heat insulation body 1 is different from that of Embodiment 1. As Figure 4 shown, in this embodiment, on the basis of the first heat insulation layer 3, the first reflective layer 4 and the second heat insulation layer 5, a second reflective layer 6 and a third heat insulation layer 7 are added. The second reflective layer 6 is attached to the second heat insulation layer 5, and the third heat insulation layer 7 is attached to the second reflective layer 6. Then, the suture 2 sequentially passes through the first heat insulation layer 3, the first reflective layer 4, the second heat insulation layer 5, the second reflective layer 6 and the third heat insulation layer 7 and is fixed into one body to form the heat insulation body 1.

[0039] In this embodiment, the function of the second reflective layer 6 is to reflect the heat radiated outward by the pipe again, and the function of the third heat insulation layer 7 is to further achieve the effects of heat insulation and isolation.

[0040] According to needs, reflective layers and heat insulation layers can be further stacked.

[0041] Embodiment 4:

[0042] The difference between this embodiment and Embodiment 1 is that the arrangement method of the suture 2 is different from that of Embodiment 1. As Figure 5As shown, in this embodiment, in addition to arranging the sutures 2 on the outer peripheral circle of the heat insulation body 1, a number of sutures 2 are also evenly arranged inside the heat insulation body 1. The sutures 2 can also be arranged separately inside the heat insulation body 1.

[0043] The specific implementation manners of this application can be any permutation and combination of the above embodiments.

[0044] As mentioned above, these are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An integrated heat-insulating material for a heat-insulating pipe, comprising a heat-insulating body (1), the heat-insulating body (1) being a multi-layer laminated structure, characterized in that: The heat insulation body (1) comprises at least one reflective layer and at least one heat insulation layer, and the heat insulation body (1) further comprises a fixing member for fixing the layered structure into one piece.

2. The one-piece heat-insulating material for the heat-insulated pipe according to claim 1, characterized in that: The fixing piece is arranged on the circumference and / or inside of the heat insulation body (1).

3. The integrated coating insulation material for the insulation pipe according to claim 1 or 2, characterized in that: The fixing element is a suture line (2) arranged around the circumference and / or inside the heat insulation body (1), and the suture line (2) penetrates the layered structure of the heat insulation body (1).

4. The integrated coating insulation material for the heat-insulated pipe according to claim 1, characterized in that: The heat insulation body (1) comprises a first heat insulation layer (3), a first reflection layer (4) and a second heat insulation layer (5) which are arranged in sequence.

5. The one-piece heat-insulating material for the heat-insulated pipe according to claim 4, characterized in that: The heat-insulating body (1) further comprises a second reflecting layer (6) bonded to the second heat-insulating layer (5) and a third heat-insulating layer (7) bonded to the second reflecting layer (6).

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