Stainless steel anti-corrosion heat-preservation spiral pipe convenient to connect

Abstract

The utility model relates to the technical field of spiral pipes, and discloses a stainless steel anti-corrosion heat preservation spiral pipe convenient to connect, which comprises a first spiral pipe body, a second spiral pipe body is arranged at one end of the first spiral pipe body, and the two ends of the first spiral pipe body and the two ends of the second spiral pipe body are fixedly connected with connecting flanges. A rotating shaft is fixedly connected to the outer wall of the connecting flange, a first limiting push plate is rotatably connected to the inner wall of the rotating shaft, a limiting plate is slidably connected to the interior of the first limiting push plate, one end of the first limiting push plate is fixedly connected with a limiting plate, and the other end of the first limiting push plate is fixedly connected with a hinge. According to the connecting flange, through the design of the first limiting push plate, the second limiting push plate and the elastic adjusting assembly, the connecting flange can be in butt joint rapidly, the connecting flange is suitable for connection of flanges with different thicknesses, the stable and rapid connecting mode is achieved, construction time is shortened, and installation efficiency is improved; and meanwhile, the leakage risk caused by unstable connection is also reduced, and the reliability of the pipeline is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral pipe technical field especially relates to a stainless steel anticorrosive heat preservation spiral pipe convenient to connect. BACKGROUND

[0002] With the development of industrialization, fluid conveying pipelines have been widely used in the fields of petroleum, chemical industry, electric power, construction and so on. Among them, stainless steel anticorrosive heat preservation spiral pipe plays an important role in fluid conveying system under various complex environments due to its excellent corrosion resistance, good heat preservation effect and high mechanical strength. Such pipelines are usually used to transport high-temperature or low-temperature medium and need to maintain stable sealing during long-term operation to reduce energy loss and leakage risk. However, in practical application, the convenience and reliability of pipeline connection directly affect the construction efficiency and system safety, therefore, optimizing the connection mode of the pipeline has become one of the problems to be solved.

[0003] At present, the existing connection mode of stainless steel anticorrosive heat preservation spiral pipe mainly adopts bolted flange connection or welding method. Among them, bolted flange connection relies on the cooperation of flange, bolt and gasket, and realizes sealing connection by tightening the bolt. This way is simple in structure and suitable for various working conditions, but it needs to tighten multiple bolts one by one during construction, which takes a long time to install, and uneven stress can easily affect the sealing effect. Another common welding connection method directly connects the pipelines together through welding process, which can form a relatively firm structure, but due to the need of professional welding equipment and technical personnel during construction, the installation is difficult, the construction cost is high, and the maintenance is inconvenient. Therefore, there is still room for optimization in the connection mode of the pipeline in the existing technology.

[0004] The traditional bolted flange connection mode often needs additional adjustment or replacement of gaskets and bolts of specific specifications when facing flanges of different thicknesses, resulting in complex and time-consuming installation process. Once the flange connection is unstable, it may cause fluid leakage, thereby affecting the safety and service life of the pipeline system. Therefore, how to improve the adaptability of flange butt joint, realize quick and stable installation, and reduce the leakage risk caused by unstable connection has become a problem to be solved in the field of stainless steel anticorrosive heat preservation spiral pipe. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a stainless steel anticorrosive heat preservation spiral pipe convenient to connect, which aims at improving the problem that the traditional bolted flange connection mode often needs additional adjustment or replacement of gaskets and bolts of specific specifications when facing flanges of different thicknesses, resulting in complex and time-consuming installation process.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A convenient to connect's stainless steel anticorrosive heat preservation spiral tube, including spiral tube body one, spiral tube body one one end is provided with spiral tube body two, spiral tube body one and spiral tube body two both ends all are fixedly connected with the connecting flange, the outer wall of connecting flan is fixedly connected with the pivot, the inner wall of pivot is rotatably connected with the limit push -pad no.

[0007] The fixing assembly comprises a bolt and a nut, the outer wall of the bolt penetrates the interiors of the limit push -pad no., the connecting flange and the limit push -pad no.

[0008] Further, the connecting flange is internally slidably connected with a sealing ring, the outer wall of the sealing ring is fixedly connected with a limiting ring, the interior of the sealing ring is slidably connected with a slide rod, the outer wall of the slide rod is sleeved with a spring, and the interior of the spiral tube body one is provided with a protection assembly.

[0009] Further, the protection assembly comprises a heat preservation layer and an anticorrosive sleeve layer, the heat preservation layer is arranged in the interior of the spiral tube body one, the anticorrosive sleeve layer is sleeved on the outer wall of the spiral tube body one, the interior of the spiral tube body one is provided with a stainless steel bar, and the interior of the spiral tube body one is provided with a stainless steel lining.

[0010] Further, the outer wall of the limiting plate is slidably connected in the interior of the limit push -pad no., and the limiting plate is used for limiting the slide rod.

[0011] Further, the outer wall of the limiting ring is slidably connected in the interior of the connecting flange, and the limiting ring is used for limiting the sealing ring.

[0012] Further, one end of the slide rod is fixedly connected in the interior of the connecting flange, and the slide rod is used for guiding the expansion of the spring.

[0013] Further, one end of the spring is fixedly connected in the interior of the connecting flange, and the other end of the spring is fixedly connected in the interior of the sealing ring.

[0014] Further, the limit push -pad no. and the limit push -pad no. are attached to the outer wall of the connecting flange, and the limit push -pad no. and the limit push -pad no. are used for positioning the connecting flange.

[0015] The utility model has the advantages of:

[0016] 1、The utility model discloses a through the design of limiting push board no. 1, limiting push board no. 2 and elastic adjusting component, make connecting flange can butt joint fast, and be applicable to the flange connection of different thickness, realized stable and fast connecting mode, not only reduced construction time, improved installation efficiency, also reduced the leakage risk of unstable connection, strengthened the reliability of pipeline.

[0017] 2、The utility model discloses a through the cooperation of sealing ring and spring component, the sealing ring can automatically fit the inside of connecting flange in the connecting process, thereby enhanced sealing performance, in addition, the reasonable layout of heat preservation layer ensures the efficient heat preservation effect of pipeline, and the addition of external anticorrosive cover layer effectively improves the corrosion resistance of pipeline, prolongs the service life, is applicable to the fluid transportation under various severe environments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the stainless steel anticorrosive heat preservation spiral pipe convenient to connect that the utility model proposes;

[0019] Figure 2 It is a limiting push board no. 1 side structure schematic diagram of the stainless steel anticorrosive heat preservation spiral pipe convenient to connect that the utility model proposes;

[0020] Figure 3 It is a connecting flange inside structure schematic diagram of the stainless steel anticorrosive heat preservation spiral pipe convenient to connect that the utility model proposes;

[0021] Figure 4 It is a spiral pipe body inside structure schematic diagram of the stainless steel anticorrosive heat preservation spiral pipe convenient to connect that the utility model proposes.

[0022] Legend:

[0023] 1, spiral pipe body no. 1;2, spiral pipe body no. 2;3, connecting flange;4, pivot;5, limiting push board no. 1;6, sliding rod;7, hinge;8, limiting push board no. 2;9, bolt;10, nut;11, gasket;12, sealing ring;13, limiting ring;14, sliding rod;15, spring;16, heat preservation layer;17, anticorrosive cover layer;18, limiting plate;19, stainless steel bar;20, stainless steel lining. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Referring to Figure 1 and Figure 2 The utility model provides an embodiment: a kind of convenient connection's stainless steel anticorrosive heat preservation spiral pipe, the one end of spiral pipe body one 1 is provided with spiral pipe body two 2, for fluid delivery, with pressure resistance, high temperature resistance and corrosion resistance, the both ends of spiral pipe body one 1 and spiral pipe body two 2 are fixedly connected with the connecting flange 3, for connecting spiral pipe body one 1 and spiral pipe body two 2, provide reliable docking interface, and ensure the stability and sealing of connection, the outer wall of connecting flange 3 is fixedly connected with rotating shaft 4, as the rotation fulcrum of limit push plate one 5, so that limit push plate one 5 can rotate around rotating shaft 4, to complete the clamping operation of connecting flange 3, the inner wall of rotating shaft 4 is rotatably connected with limit push plate one 5, by the rotation effect of rotating shaft 4, it is attached to one side of connecting flange 3, to realize the preliminary fixation of flange, sliding rod 6 is slidably connected in limit push plate one 5, allow limit push plate two 8 to extend and adjust, so that it can adapt to the connecting flange 3 of different thickness, improve adaptability, ensure stable connection, one end of sliding rod 6 is fixedly connected with limit plate 18, the other end of sliding rod 6 is fixedly connected with hinge 7, as the rotation fulcrum of limit push plate two 8, so that limit push plate two 8 can rotate around hinge 7, ensure that it can be closely attached to the other side of connecting flange 3, realize more firm fixed effect, the outer wall of hinge 7 is fixedly connected with limit push plate two 8, the inside of limit push plate two 8 is provided with fixed assembly;

[0026] Fixed assembly includes bolt 9 and nut 10, the outer wall of bolt 9 is sequentially penetrated to the inside of limit push plate one 5, connecting flange 3 and limit push plate two 8, the inner wall of nut 10 is threadedly connected at one end of bolt 9, penetrates limit push plate one 5, connecting flange 3 and limit push plate two 8, and cooperates with nut 10, realizes the fastening connection of flange, prevents loosening and leakage, gasket 11 is arranged between nut 10 and limit push plate two 8, is placed between nut 10 and limit push plate two 8, plays the role of buffering and increasing friction, prevents nut 10 loosening, improves the stability of connection.

[0027] Specifically, when the spiral pipe body one 1 and the spiral pipe body two 2 need to be connected, first, the rotation of the limiting push plate one 5 is driven by the rotating shaft 4, so that it moves to the periphery of the connecting flange 3, then the limiting push plate two 8 is pulled, and the other side of the connecting flange 3 is tightly attached through the rotation of the hinge 7, so that the rapid positioning and accurate butt joint of the pipeline are realized, then the limiting push plate one 5, the connecting flange 3 and the limiting push plate two 8 are fixed together through the bolts 9, and finally the stability of the connection is ensured by using the nuts 10 and the gaskets 11, in the whole process, the limiting push plate two 8 can be extended and adjusted according to the thickness of the connecting flange 3 through the action of the elastic adjusting assembly sliding rod 6, which further improves the stability and adaptability of the connection, improves the installation speed, reduces the on-site welding operation, reduces the construction cost, and effectively avoids the leakage risk caused by unstable connection or error, thereby enhancing the safety and reliability of the pipeline, especially suitable for the pipeline that needs to be frequently disassembled and replaced in complex environment, improving the convenience and economy of maintenance.

[0028] With reference to Figure 1 , Figure 3 and Figure 4The sealing ring 12 is slidably connected to the inside of the connecting flange 3, the outer wall of the sealing ring 12 is fixedly connected to the limiting ring 13, the inside of the sealing ring 12 is slidably connected to the slide rod 14, in the connecting process, the sealing ring 12 is tightly attached to the inside of the connecting flange 3 by the spring 15, the sealing performance is enhanced, the fluid leakage in the pipeline is prevented, the safety is improved, the spring 15 is sleeved on the outer wall of the slide rod 14, the inside of the spiral pipe body one 1 is provided with a protection assembly, the protection assembly comprises a heat preservation layer 16 and a corrosion resistant sleeve layer 17, which are arranged in the inside of the spiral pipe body one 1 and the spiral pipe body two 2, and are used for reducing heat loss and improving the heat preservation performance of fluid conveying, ensuring temperature stability, the heat preservation layer 16 is arranged in the inside of the spiral pipe body one 1, the corrosion resistant sleeve layer 17 is sleeved on the outer wall of the spiral pipe body one 1 and covers the outer wall of the spiral pipe body one 1, providing corrosion protection, effectively resisting the erosion of external moisture, chemical corrosion medium, prolonging the service life of the pipeline, the inside of the spiral pipe body one 1 is provided with a stainless steel bar 19, which is arranged in the inside of the spiral pipe body one 1, improving the mechanical strength and pressure resistance of the pipeline, preventing the pipeline from deforming or rupturing due to external pressure or high temperature environment, the inside of the spiral pipe body one 1 is provided with a stainless steel lining 20, the outer wall of the limiting plate 18 is slidably connected to the inside of the limiting push plate one 5, the limiting plate 18 is used for limiting the slide rod 6, the outer wall of the limiting ring 13 is slidably connected to the inside of the connecting flange 3, the limiting ring 13 is used for limiting the sealing ring 12, one end of the slide rod 14 is fixedly connected to the inside of the connecting flange 3, the slide rod 14 is used for guiding the extension and contraction of the spring 15, one end of the spring 15 is fixedly connected to the inside of the connecting flange 3, the other end of the spring 15 is fixedly connected to the inside of the sealing ring 12, the limiting push plate one 5 and the limiting push plate two 8 are attached to the outer wall of the connecting flange 3, and the limiting push plate one 5 and the limiting push plate two 8 are used for positioning the connecting flange 3.

[0029] Specifically, in the connecting process, with the close butt joint of the spiral pipe body one 1 and the spiral pipe body two 2, the sealing ring 12 will automatically move to the inside of the connecting flange 3, at this time, the spring 15 pushes the sealing ring 12 to tightly attach to the inner wall of the connecting flange 3 through its elastic effect, ensuring the stability and durability of the sealing performance, effectively preventing fluid leakage, in addition, the heat preservation design of the pipeline is also carefully considered, the spiral pipe body one 1 is provided with an efficient heat preservation layer 16, through reasonable layout and uniform thickness of the heat preservation material, the heat loss is effectively reduced, the temperature stability of the fluid in the pipeline is ensured, the external corrosion resistant sleeve layer 17 provides all-round corrosion protection for the spiral pipe body one 1, especially in high corrosion environment such as chemical industry and petroleum industry, the service life of the pipeline can be greatly prolonged, the maintenance cost is reduced, the external corrosion resistant sleeve layer 17 adopts a material with strong corrosion resistance, which can resist the erosion of external moisture, chemicals and other corrosive media, further enhancing the durability of the pipeline in harsh environments, through the effective combination of these designs.

[0030] Working principle: when the stainless steel anticorrosion heat preservation spiral pipe is needed, firstly, the connecting flange 3 of the spiral pipe body one 1 and the spiral pipe body two 2 is pasted, then the limiting push plate one 5 is pulled to rotate with the pivot 4 as the center, so that the sliding rod 6 moves to the periphery of the connecting flange 3, then the limiting push plate two 8 is pulled to rotate with the hinge 7 as the center, so that the limiting push plate two 8 is pasted to the outer wall of the connecting flange 3 on the other side, which facilitates the quick positioning of the spiral pipe body one 1 and the spiral pipe body two 2, then the bolt 9 is penetrated through the inside of the limiting push plate one 5, the connecting flange 3 and the limiting push plate two 8, and finally fixed through the nut 10 and the gasket 11, in this process, since the sliding rod 6 can drive the limiting push plate two 8 to extend and adjust, so that it can fix the connecting flange 3 of different thickness, realize stable and fast connection.

[0031] In addition, when the spiral pipe body one 1 and the spiral pipe body two 2 are connected, the connecting flanges 3 on both sides are tightly pasted, which drives the sealing ring 12 to move to the inside of the connecting flange 3, at this time, the sealing ring 12 is moved to the inside of the connecting flange 3 by the elasticity of the spring 15, realizing stable sealing, so as to realize efficient heat preservation with the heat preservation layer 16 in the spiral pipe body one 1, in addition, the anticorrosion sleeve layer 17 on the outer wall of the spiral pipe body one 1 can realize the anticorrosion of the spiral pipe body one 1, finally, the spiral pipe body one 1 is strengthened by the stainless steel bar 19 and the stainless steel lining 20 in the spiral pipe body one 1.

[0032] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A corrosion proof and heat insulated stainless steel spiral pipe for easy connection comprising a spiral pipe body one (1) characterized by: One end of the spiral pipe body one (1) is provided with spiral pipe body two (2), both ends of the spiral pipe body one (1) and spiral pipe body two (2) are fixedly connected with connecting flange (3), the outer wall of connecting flange (3) is fixedly connected with rotating shaft (4), the inner wall of rotating shaft (4) is rotatably connected with limit push plate one (5), the inside of limit push plate one (5) is slidably connected with sliding rod (6), one end of sliding rod (6) is fixedly connected with limit plate (18), the other end of sliding rod (6) is fixedly connected with hinge (7), the outer wall of hinge (7) is fixedly connected with limit push plate two (8), the inside of limit push plate two (8) is provided with fixing assembly; The fixing assembly comprises a bolt (9) and a nut (10), the outer wall of the bolt (9) is sequentially penetrated into the inside of the limit push plate one (5), the connecting flange (3) and the limit push plate two (8), the inner wall of the nut (10) is threadedly connected with one end of the bolt (9), and the nut (10) and the limit push plate two (8) are provided with a gasket (11).

2. A corrosion resistant and heat insulated stainless steel spiral pipe for easy connection according to claim 1, characterized in that: The inside of the connecting flange (3) is slidably connected with a sealing ring (12), the outer wall of the sealing ring (12) is fixedly connected with a limit ring (13), the inside of the sealing ring (12) is slidably connected with a sliding rod (14), the outer wall of the sliding rod (14) is sleeved with a spring (15), and the inside of the spiral pipe body one (1) is provided with a protection assembly.

3. A corrosion resistant and heat insulated stainless steel spiral pipe for easy connection according to claim 2, characterized in that: The protection assembly comprises a heat preservation layer (16) and a corrosion resistant sleeve layer (17), the heat preservation layer (16) is arranged in the inside of the spiral pipe body one (1), the corrosion resistant sleeve layer (17) is sleeved on the outer wall of the spiral pipe body one (1), the inside of the spiral pipe body one (1) is provided with a stainless steel bar (19), and the inside of the spiral pipe body one (1) is provided with a stainless steel lining (20).

4. A corrosion resistant and heat insulated stainless steel spiral pipe for easy connection according to claim 3, characterized in that: The outer wall of the limit plate (18) is slidably connected in the inside of the limit push plate one (5), and the limit plate (18) is used for limiting the sliding rod (6).

5. A corrosion resistant and heat insulated stainless steel spiral pipe for easy connection according to claim 3, characterized in that: The outer wall of the limit ring (13) is slidably connected in the inside of the connecting flange (3), and the limit ring (13) is used for limiting the sealing ring (12).

6. A corrosion resistant and heat insulated stainless steel spiral pipe for easy connection according to claim 3, characterized in that: One end of the sliding rod (14) is fixedly connected in the inside of the connecting flange (3), and the sliding rod (14) is used for guiding the expansion of the spring (15).

7. A corrosion resistant and heat insulated stainless steel spiral pipe for easy connection according to claim 3, characterized in that: One end of the spring (15) is fixedly connected in the inside of the connecting flange (3), and the other end of the spring (15) is fixedly connected in the inside of the sealing ring (12).

8. A corrosion resistant and heat insulated stainless steel spiral pipe for easy connection according to claim 1, characterized in that: The limit push plate one (5) and the limit push plate two (8) are attached to the outer wall of the connecting flange (3), and the limit push plate one (5) and the limit push plate two (8) are used for positioning the connecting flange (3).

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