Heat insulation stainless steel pipe

Abstract

The utility model relates to a heat insulation stainless steel pipe which comprises a working steel pipe and an outer protection steel pipe, heat insulation cotton is wrapped outside the working steel pipe, the outer protection steel pipe is sleeved on the outer side of the heat insulation cotton, a retaining mechanism is arranged between the heat insulation cotton and the outer protection steel pipe, the retaining mechanism comprises an inner retaining layer and an outer retaining layer, and the inner retaining layer and the outer retaining layer are both of an annular structure. A fixed connecting mechanism is arranged between the inner retaining layer and the outer retaining layer and used for fixing the distance between the inner retaining layer and the outer retaining layer, the inner retaining layer is arranged on the outer side of the heat insulation cotton in an abutting mode, the outer retaining layer is arranged on the inner side wall of the outer protective steel pipe in an abutting mode, and the structure can be used for supporting the outer protective steel pipe. Meanwhile, due to the fact that the distance between the inner maintaining layer and the outer maintaining layer is fixed, the heat insulation cotton can be tightly attached to the surface of the working steel pipe through the inner maintaining layer, and the heat insulation effect can be further enhanced.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, and in particular to a heat-insulating stainless steel pipe. Background Technology

[0002] Currently, many insulated stainless steel pipes have relatively thin outer sheaths and lack corresponding structural protection mechanisms. Therefore, the impact resistance and mechanical strength of these outer sheaths are relatively insufficient, making them susceptible to external forces such as impacts, compression, or vibration during transportation, installation, or long-term operation, leading to pipe deformation, dents, or even cracking. Damage to the outer sheath not only affects the pipe's aesthetics but can also cause material fatigue and corrosion, ultimately shortening the pipe's service life. Utility Model Content

[0003] This utility model proposes a heat-insulating stainless steel pipe, which solves the above-mentioned problems existing in the use of the prior art.

[0004] The technical solution of this utility model is implemented as follows: a heat-insulating stainless steel pipe includes a working steel pipe and an outer protective steel pipe. The working steel pipe is covered with heat-insulating cotton, and the outer protective steel pipe is sleeved on the outside of the heat-insulating cotton. A retaining mechanism is provided between the heat-insulating cotton and the outer protective steel pipe. The retaining mechanism includes an inner retaining layer and an outer retaining layer. Both the inner and outer retaining layers are annular structures. A fixing connection mechanism is provided between the inner and outer retaining layers. The fixing connection mechanism is used to fix the distance between the inner and outer retaining layers. The inner retaining layer is abutted against the outside of the heat-insulating cotton, and the outer retaining layer is abutted against the inner sidewall of the outer protective steel pipe.

[0005] The present invention is further configured such that: both the inner retaining layer and the outer retaining layer include a plurality of retaining pieces, and the retaining pieces of the inner retaining layer and the outer retaining layer are arranged at intervals along the circumferential direction.

[0006] The present invention is further configured such that the retaining plates extend into long strips along the axial direction of the working steel pipe.

[0007] The present invention is further configured such that: the fixed connection mechanism includes a plurality of support plates arranged circumferentially between the inner retaining layer and the outer retaining layer; a retaining plate is fixedly connected to the end of the support plate near the working steel pipe and the end near the outer protective steel pipe; the fixed connection mechanism also includes a steel ring; a plurality of through slots are provided on the support plate; the through slots are arranged at intervals along the axial direction of the working steel pipe; and the steel ring is fitted into the through slot.

[0008] The present invention is further configured such that the retaining sheet of the outer retaining layer has a cross-sectional shape that is thin at both ends and thick in the middle.

[0009] The utility model further sets up: the maintenance mechanism is used for protecting the heat insulation cotton.

[0010] The utility model further sets up: the maintenance mechanism includes protection cylinder, the protection cylinder is set outside the heat insulation cotton, the lateral wall of protection cylinder is the network surface structure.

[0011] Summarized above, the beneficial effect of the utility model lies in:

[0012] 1, the structure can be used to the outer protective steel pipe forms the support, strengthens the structural strength of outer protective steel pipe, and because the interval between the inner retaining layer and the outer retaining layer is fixed, therefore can also utilize the inner retaining layer and make the heat insulation cotton adhere to the surface of the work steel pipe, help further strengthen the heat insulation effect.

[0013] 2, the inner retaining piece and the outer retaining piece can fill the foamed material, can further play the damping effect, and when the outer protective steel pipe receives the impact, the retaining piece between each other leaves a certain gap, can make the retaining piece exist certain movement space, is favorable to the buffer impact of outside.

[0014] 3, the retaining piece of outer retaining layer is designed as two ends thin and middle thick, help to retain the elastic deformation ability of retaining piece, when retaining piece and outer protective steel pipe are opposite, retaining piece can according to the stress condition of outer protective steel pipe and carries out corresponding deformation, prevents its direct scratch damage to outer protective steel pipe. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0016] Fig. 1 It is the structure explosion schematic view of the utility model;

[0017] Fig. 2 It is the overall structure schematic view of the utility model;

[0018] Fig. 3 It is the structure relationship display view of retaining piece and support plate combination in the utility model.

[0019] Marked number in drawing: 1 work steel pipe, 2 heat insulation cotton, 3 outer protective steel pipe, 41 retaining piece, 42 support plate, 421 through slot, 43 steel ring, 5 protection cylinder. CONCRETE IMPLEMENTATION

[0020] The following will refer to the appendix in the embodiments of this utility model. Figs. 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example:

[0022] like Figs. 1 to 3 As shown, this utility model discloses a heat-insulating stainless steel pipe, including a working steel pipe 1 and an outer protective steel pipe 3, wherein the working steel pipe 1 is covered with heat-insulating cotton 2, and the outer protective steel pipe 3 is sleeved on the outside of the heat-insulating cotton 2.

[0023] A retaining mechanism is provided between the heat insulation cotton 2 and the outer protective steel pipe 3. The retaining mechanism includes an inner retaining layer and an outer retaining layer, both of which are annular structures. At the same time, a fixing connection mechanism is provided between the inner retaining layer and the outer retaining layer. The fixing connection mechanism is used to fix the distance between the inner retaining layer and the outer retaining layer. This structure allows the inner retaining layer to be held against the outside of the heat insulation cotton 2 and the outer retaining layer to be held against the inner side wall of the outer protective steel pipe 3 through the fixing connection mechanism.

[0024] Furthermore, both the inner and outer retaining layers include a number of retaining pieces 41, each retaining piece 41 extending into a strip along the axial direction of the working steel pipe 1. At the same time, the retaining pieces 41 of the inner and outer retaining layers are arranged at intervals in the circumferential direction.

[0025] The fixed connection mechanism specifically includes several support plates 42 arranged circumferentially between the inner and outer retaining layers. A retaining piece 41 is fixedly connected to each end of the support plate 42 near the working steel pipe 1 and the end near the outer protective steel pipe 3. (Refer to...) Fig. 2 The two ends of the support plate 42 are connected to the retaining pieces 41 of the inner and outer retaining layers, respectively, and are combined into an "I" shape. At the same time, the fixed connection mechanism also includes a steel ring 43. In this structure, each support plate 42 has several through slots 421. These through slots 421 are arranged at intervals along the axial direction of the working steel pipe 1. At the same time, the position of the through slot 421 on each support plate 42 corresponds to the position of the through slot 421 on other support plates 42. Through this structure, the steel ring 43 can be fitted into the through slot 421.

[0026] Furthermore, the retaining sheet 41 of the outer retaining layer has a cross-sectional shape that is thin at both ends and thick in the middle.

[0027] Further, the heat insulation cotton 2 and the inner holding layer are provided with a maintenance mechanism, the maintenance mechanism is used for protecting the heat insulation cotton 2, and the maintenance mechanism comprises a protection cylinder 5, the protection cylinder 5 is sleeved on the outer side of the heat insulation cotton 2, and the side wall of the protection cylinder 5 is a mesh surface structure.

[0028] The working principle of the structure is that after the steel ring 43 is sleeved into the through groove 421, the steel ring 43 can be fixedly connected with the support plate 42 in a welding mode, so that the uniform spacing between the holding pieces 41 of the inner holding layer and the outer holding layer is ensured, in the structure, the support plate 42 and the holding pieces 41 can be used to strengthen the structural strength of the outer protective steel pipe 3 to resist the impact from the outside, the holding pieces 41 are used to support the shape of the outer protective steel pipe 3 on one hand and to make the outer protective steel pipe 3 concentrically arranged with the working steel pipe 1 on the other hand, so that the heat conduction of the whole heat insulation steel pipe is uniform, and in addition, the protection cylinder 5 is used to protect the heat insulation cotton 2 from being damaged and scattered by the inner holding pieces 41.

[0029] In addition, foamed material can also be filled between the inner holding pieces 41 and the outer holding pieces 41, which is used to improve the heat insulation effect on one hand and to absorb part of the vibration of the holding pieces 41 when the outer protective steel pipe 3 is impacted on the other hand, so that the shock absorption effect is improved.

[0030] Meanwhile, it should be pointed out that the terms such as "front", "rear", "vertical", "horizontal" and the like indicated in the utility model indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0031] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat-insulating stainless steel pipe, comprising a working steel pipe (1) and an outer protective steel pipe (3), wherein the working steel pipe (1) is covered with heat-insulating cotton (2), and the outer protective steel pipe (3) is sleeved on the outside of the heat-insulating cotton (2), characterized in that: A retaining mechanism is provided between the heat insulation cotton (2) and the outer protective steel pipe (3). The retaining mechanism includes an inner retaining layer and an outer retaining layer. Both the inner retaining layer and the outer retaining layer are annular structures. A fixing connection mechanism is provided between the inner retaining layer and the outer retaining layer. The fixing connection mechanism is used to fix the distance between the inner retaining layer and the outer retaining layer. The inner retaining layer is abutted on the outside of the heat insulation cotton (2), and the outer retaining layer is abutted on the inner sidewall of the outer protective steel pipe (3).

2. The heat-insulating stainless steel pipe according to claim 1, characterized in that: Both the inner and outer retaining layers include a plurality of retaining pieces (41), and the retaining pieces (41) of the inner and outer retaining layers are arranged at intervals along the circumferential direction.

3. The heat-insulating stainless steel pipe according to claim 2, characterized in that: The retaining pieces (41) all extend into strips along the axial direction of the working steel pipe (1).

4. The heat-insulating stainless steel pipe according to claim 3, characterized in that: The fixed connection mechanism includes several support plates (42) arranged circumferentially between the inner and outer retaining layers. A retaining piece (41) is fixedly connected to the end of the support plate (42) near the working steel pipe (1) and the end near the outer protective steel pipe (3). The fixed connection mechanism also includes a steel ring (43). Several through slots (421) are provided on the support plate (42). The through slots (421) are arranged at intervals along the axial direction of the working steel pipe (1). The steel ring (43) is sleeved in the through slot (421).

5. The heat-insulating stainless steel pipe according to claim 4, characterized in that: The retaining sheet (41) of the outer retaining layer has a cross-sectional shape that is thin at both ends and thick in the middle.

6. The heat-insulating stainless steel pipe according to claim 5, characterized in that: A maintenance mechanism is provided between the heat insulation cotton (2) and the inner retaining layer, and the maintenance mechanism is used to protect the heat insulation cotton (2).

7. The heat-insulating stainless steel pipe according to claim 6, characterized in that: The maintenance mechanism includes a protective cylinder (5), which is sleeved on the outside of the heat insulation cotton (2), and the side wall of the protective cylinder (5) is a mesh structure.

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