Corrosion-resistant thin-wall stainless steel seamless steel pipe for chemical reaction kettle

By installing a reinforcing support ring on the outside of the thin-walled stainless steel seamless pipe used in the chemical reactor and lining it with a sound-insulating cotton layer, the problems of pressure resistance and noise were solved, and the pressure resistance and noise reduction effects were improved.

CN224120893UActive Publication Date: 2026-04-14WUXI XINCHANG STEEL PIPE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Thin-walled stainless steel seamless pipes used in chemical reaction vessels have insufficient external pressure resistance and generate noise during fluid or gas transmission, affecting service life and working experience.

Method used

Reinforcing support rings and reinforcing bars are installed on the outside of the thin-walled pipe, and a sound insulation cotton layer is installed in the cavity groove on the outside of the inner thin pipe. The pressure resistance is improved by strengthening the connecting components, and the noise is reduced by using the sound insulation components in the cavity groove.

Benefits of technology

It improves the pipeline's pressure resistance, significantly extends its service life, effectively reduces noise during transmission, and enhances the working experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of seamless steel pipes, and discloses a corrosion-resistant thin-wall stainless steel seamless steel pipe for a chemical reaction kettle, which comprises a thin-wall pipeline for supporting, a lining thin pipe fixed on the inner side of the thin-wall pipeline, and a plurality of reinforcing support rings fixedly connected outside the thin-wall pipeline, reinforcing connecting assemblies are installed on the outer sides of the reinforcing supporting rings and used for achieving the anti-pressure ability of the thin-wall pipe body, a cavity notch is formed in the outer side of the lining thin pipe, and a sound insulation blocking assembly is installed in the cavity notch and used for achieving treatment of noise generated by transmission. The sound insulation blocking assembly comprises a fixed sound insulation cotton layer located in the notch of the cavity, and the outer side of the sound insulation cotton layer is fixedly connected to the inner side of the thin-wall pipeline. According to the utility model, the pressure resistance of the device is improved, the daily service life of the pipe body is ensured, the noise generated by fluid or gas is eliminated to a certain extent, and the noise reduction of the pipeline during transportation is improved.
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Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipes, and in particular to a corrosion-resistant thin-walled stainless steel seamless steel pipe for chemical reaction vessels. Background Technology

[0002] Corrosion-resistant thin-walled stainless steel seamless pipes for chemical reactors are a type of pipe designed specifically for harsh chemical environments. They are manufactured through cold rolling or cold drawing processes, combining thin-walled lightweight with structural integrity. The weld characteristics avoid the risk of corrosion at the weld seam, ensuring long-term stable transportation of corrosive fluids or gases.

[0003] Thin-walled, lightweight steel pipes have poor resistance to external pressure and cannot effectively protect against external threats, affecting the lifespan of the pipes used for transmission. In addition, during the transmission of fluids and gases inside the pipe, the medium comes into contact with the pipe wall, and the high-speed flow generates noise, affecting the working experience. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a corrosion-resistant thin-walled stainless steel seamless pipe for chemical reactors, which ensures the lifespan of the pipe during daily use and reduces noise during pipeline transportation.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels includes a thin-walled pipe for support, an inner lining thin pipe fixed inside the thin-walled pipe, and multiple reinforcing support rings fixedly connected to the outside of the thin-walled pipe. Reinforcing connection components are installed on the outside of the reinforcing support rings to enhance the pressure resistance of the thin-walled pipe. A cavity slot is opened on the outside of the inner lining thin pipe, and a sound insulation and blocking component is installed inside the cavity slot to reduce noise generated during transmission.

[0007] Furthermore, the sound insulation barrier assembly includes a sound insulation cotton layer fixed inside the cavity slot, the outer side of the sound insulation cotton layer is fixedly connected to the inner side of the thin-walled pipe, and the interior of the sound insulation cotton layer has multiple through slots.

[0008] Furthermore, the reinforcing connection assembly includes a plurality of connecting seats located around the outside of the reinforcing support ring, with reinforcing steel bars fixedly connected inside the connecting seats, and the connecting seats are arranged around the perimeter.

[0009] Furthermore, reinforcing anti-detachment plates are fixedly connected to both sides of the connecting seat.

[0010] Furthermore, the inner side of the reinforcing anti-detachment piece is fixedly connected to the outer side of the reinforcing steel bar.

[0011] Furthermore, the inner side of the inner lining tube is coated with an epoxy coating layer.

[0012] Furthermore, the inner side of the thin-walled pipe is fixedly connected with a plurality of connecting arc blocks, the outer sides of the connecting arc blocks are respectively inserted into the inside of the slot opening, and the inner side of the connecting arc blocks is fixedly connected to the inside of the cavity slot opening.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, multiple reinforcing support rings are distributed on the surface of the thin-walled pipe, and multiple reinforcing steel bars and connecting seats are combined and surrounded around the outside of the reinforcing support rings to protect the outside of the thin-walled pipe, improve the pressure resistance of the device itself, and ensure the service life of the pipe body during daily use.

[0015] 2. In this utility model, noise is transmitted outward into the cavity slot. The inner lining thin tube and thin-walled pipe are double-layered and hollow, which limits the noise to a certain extent. Furthermore, the connecting arc block inside the cavity slot absorbs the sound, thereby eliminating the noise generated by the fluid or gas and improving the noise reduction of the pipeline during transportation. Attached Figure Description

[0016] Figure 1 This is an overall drawing of a corrosion-resistant thin-walled stainless steel seamless pipe for a chemical reaction vessel proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This utility model presents a diagram of the inner thin-walled stainless steel seamless steel pipe for use in a chemical reactor, which is designed to be corrosion resistant and thin-walled.

[0019] Figure 4 This invention relates to an internal diagram of a corrosion-resistant thin-walled stainless steel seamless pipe for use in chemical reaction vessels.

[0020] Legend:

[0021] 1. Thin-walled pipe; 2. Reinforced support ring; 3. Reinforced steel bar; 4. Connecting seat; 5. Thin-walled inner lining pipe; 6. Reinforced anti-detachment plate; 7. Cavity groove; 8. Sound insulation cotton layer; 9. Connecting arc block; 10. Through slot; 11. Epoxy coating layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-3 An embodiment of this utility model provides: a corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels, including a thin-walled pipe 1 for support, an inner lining thin pipe 5 fixed inside the thin-walled pipe 1, multiple reinforcing support rings 2 fixedly connected to the outside of the thin-walled pipe 1, and a reinforcing connection assembly installed on the outside of the reinforcing support rings 2 to achieve the pressure resistance of the thin-walled pipe body. A cavity slot 7 is opened on the outside of the inner lining thin pipe 5, and a sound insulation blocking assembly is installed inside the cavity slot 7 to achieve noise reduction during transmission. The reinforcing connection assembly includes multiple connecting seats 4 located around the outside of the reinforcing support rings 2. Reinforcing steel bars 3 are fixedly connected inside the connecting seats 4. The connecting seats 4 are arranged around the perimeter. Reinforcing anti-detachment plates 6 are fixedly connected to both sides of the connecting seats 4. The inner sides of the reinforcing anti-detachment plates 6 are respectively fixedly connected to the outside of the reinforcing steel bars 3. The inner side of the inner lining thin pipe 5 is coated with an epoxy coating layer 11.

[0024] During daily use, when the pipeline is subjected to external pressure impact, the impacting object will first come into contact with the reinforcing steel bar 3 on the outside of the pipeline. Then, the impact force is dispersed and buffered by multiple evenly distributed reinforcing support rings 2. At the same time, the connecting seat 4 further provides stable support, effectively resisting excessive impact load, thereby significantly improving the overall pressure resistance of the pipeline and ensuring the structural integrity and durability of the pipe body in long-term use.

[0025] Reference Figure 1 , Figure 3 and Figure 4 The sound insulation barrier assembly includes a sound insulation cotton layer 8 fixed inside the cavity slot 7. The outer side of the sound insulation cotton layer 8 is fixedly connected to the inner side of the thin-walled pipe 1. Multiple through slots 10 are opened inside the sound insulation cotton layer 8. Multiple connecting arc blocks 9 are fixedly connected to the inner side of the thin-walled pipe 1. The outer side of the connecting arc blocks 9 is inserted into the inside of the through slots 10, and the inner side of the connecting arc blocks 9 is fixedly connected to the inside of the cavity slot 7.

[0026] When fluid or gas is transported in the pipeline, the vibration noise generated by the medium in contact with the inner wall of the thin-walled pipe 5 will be transmitted outward. Since the thin-walled pipe 5 and the thin-walled pipe 1 form a double-layer hollow structure, the noise is effectively blocked and attenuated in the cavity slot 7. At the same time, the connecting arc block 9 set inside the cavity slot 7 further reduces the fluid dynamic noise through sound wave reflection and absorption, thereby significantly improving the overall noise reduction performance of the pipeline and ensuring the quiet effect of the medium transportation process.

[0027] Working principle: When the fluid or gas is transported inside the pipe wall, it comes into contact with the inside of the thin-walled inner tube 5. The noise generated by the impact is transmitted outward into the cavity slot 7. The thin-walled inner tube 5 and the thin-walled pipe 1 are a double-layered and hollow structure, which limits the noise to a certain extent. Furthermore, the connecting arc block 9 inside the cavity slot 7 absorbs the sound, which eliminates the noise generated by the fluid or gas to a certain extent, thus improving the noise reduction of the pipeline. During daily use, when the external pressure comes into contact with the outside of the pipeline, the surface of the impacting object will first come into contact with the reinforcing steel bar 3. The impact force generated by the object is supported and blocked by multiple reinforcing support rings 2, and the connecting seat 4 will support the object. For excessively large objects, it will support the pressure resistance of the device itself, thereby ensuring the service life of the pipe body during daily use.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels, characterized in that, It includes a thin-walled pipe (1) for support, an inner lining thin tube (5) fixed inside the thin-walled pipe (1), a plurality of reinforcing support rings (2) fixedly connected to the outside of the thin-walled pipe (1), and a reinforcing connection assembly installed on the outside of the reinforcing support rings (2) to achieve the pressure resistance of the thin-walled pipe body. A cavity slot (7) is opened on the outside of the inner lining thin tube (5), and a sound insulation blocking assembly is installed inside the cavity slot (7) to achieve noise reduction during transmission.

2. The corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels according to claim 1, characterized in that: The sound insulation barrier assembly includes a sound insulation cotton layer (8) fixed inside the cavity slot (7), the outer side of the sound insulation cotton layer (8) is fixedly connected to the inner side of the thin-walled pipe (1), and the inner side of the sound insulation cotton layer (8) is provided with multiple through slots (10).

3. The corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels according to claim 1, characterized in that: The reinforcing connection assembly includes a plurality of connecting seats (4) located around the outside of the reinforcing support ring (2), with reinforcing steel bars (3) fixedly connected inside the connecting seats (4), and the connecting seats (4) are arranged around the perimeter.

4. The corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels according to claim 3, characterized in that: Both sides of the connecting seat (4) are fixedly connected with reinforcing anti-detachment plates (6).

5. The corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels according to claim 4, characterized in that: The inner side of the reinforcing anti-detachment piece (6) is fixedly connected to the outer side of the reinforcing steel bar (3).

6. The corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels according to claim 1, characterized in that: The inner side of the inner lining tube (5) is coated with an epoxy coating layer (11).

7. The corrosion-resistant thin-walled stainless steel seamless pipe for chemical reaction vessels according to claim 1, characterized in that: The thin-walled pipe (1) has multiple connecting arc blocks (9) fixedly connected to its inner side. The outer side of the connecting arc blocks (9) is inserted into the inside of the slot opening (10), and the inner side of the connecting arc blocks (9) is fixedly connected to the inside of the cavity slot opening (7).