Corrosion-resistant long-life stainless steel tube applied to a boiler

Abstract

The utility model discloses a kind of corrosion-resistant long-life stainless steel pipes applied to boiler, it is related to stainless steel pipe technical field, including first steel pipe, one end of the first steel pipe is provided with second steel pipe, the side of the first steel pipe is provided with fixed component, the inside of the first steel pipe is provided with corrosion-resistant component, the fixed component includes fixed ring, and fixed ring is fixedly connected in the outer wall of first steel pipe, the outer wall of the fixed ring is provided with outer thread, the outer wall thread of the outer thread is connected with mounting ring. The corrosion-resistant long-life stainless steel pipe applied to boiler, first by rotating first steel pipe drive fixed ring and mounting ring thread connection, realize preliminary fixation, subsequently hoop is pasted in the outer wall of both, screw nut extrusion hoop, further strengthen connection, the design of this double fixation, effectively improve the stability of first steel pipe and second steel pipe connection, reduce the risk of loosening, falling, guarantee use safety and reliable.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, specifically to a corrosion-resistant, long-life stainless steel pipe for use in boilers. Background Technology

[0002] Corrosion-resistant, long-life stainless steel pipes used in boilers, with their superior corrosion resistance and high-temperature stability, have become key materials for ensuring the safe and efficient operation of boilers. These stainless steel pipes use austenitic, ferritic, or duplex stainless steel as the base material, and by adding alloying elements such as chromium, nickel, and molybdenum, a dense oxide film is formed, effectively resisting the erosion of high-temperature steam, acidic media, and corrosive substances containing chlorine and sulfur. Their high-temperature resistance ensures that mechanical strength is maintained under extreme operating conditions, avoiding the risk of creep or deformation. Optimized welding processes and heat treatment technologies further enhance the pipe's resistance to intergranular corrosion and weld strength, extending its service life. In addition, the smooth surface of stainless steel pipes makes them easy to clean, reducing heat loss and improving boiler efficiency. With their comprehensive advantages of corrosion resistance, high-temperature resistance, high strength, and long service life, these stainless steel pipes are widely used in high-temperature and high-pressure boiler systems in industries such as power, chemical, and metallurgy, providing a reliable guarantee for the stable operation of equipment.

[0003] However, in the existing technology, after the stainless steel pipes used in boilers are used for heat transfer, the heat of the pipes is difficult to dissipate actively, and they remain in a high residual temperature state for a long time, which accelerates the corrosion and aging of some surrounding components. Therefore, we need a corrosion-resistant and long-life stainless steel pipe for use in boilers. Utility Model Content

[0004] The purpose of this invention is to provide a corrosion-resistant, long-life stainless steel pipe for use in boilers, in order to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant, long-life stainless steel pipe for boilers, comprising a first steel pipe, a second steel pipe at one end of the first steel pipe, a fixing component on one side of the first steel pipe, a corrosion-resistant component inside the first steel pipe, the corrosion-resistant component including a water inlet located inside the first steel pipe, a water inlet pipe fixedly connected to one end of the water inlet, a connecting pipe fixedly connected to one end of the water inlet pipe, a water outlet pipe fixedly connected to one end of the connecting pipe, and a water outlet fixedly connected to one end of the water outlet pipe.

[0006] Preferably, the inlet pipe is connected to the outlet pipe via a connecting pipe, with one end of the connecting pipe fixedly connected to one end of the inlet pipe and the other end of the connecting pipe fixedly connected to one end of the outlet pipe.

[0007] Preferably, the first steel pipe has a connecting pipe inside, and the connecting pipe is spirally arranged.

[0008] Preferably, the fixing component includes a fixing ring, which is fixedly connected to the outer wall of the first steel pipe. The outer wall of the fixing ring is provided with an external thread, and an installation ring is threadedly connected to the outer wall of the external thread. The inner wall of the installation ring is provided with an internal thread. The outer wall of the fixing ring is provided with a clamp, and a bolt is provided on one side of the clamp. A nut is threadedly connected to the outer wall of the bolt.

[0009] Preferably, the fixing ring forms a fixing structure with the mounting ring through an external thread, and the outer diameter of the external thread matches the inner diameter of the internal thread, and the outer wall of the external thread fits against the inner wall of the internal thread.

[0010] Preferably, the nut is fixed by bolts and clamps, and the nut is threaded through the clamps and connected to the nut by threads.

[0011] Preferably, the outer wall of the clamp is provided with a plurality of bolts, and the bolts are evenly distributed on the outer wall of the clamp.

[0012] Compared with the prior art, the beneficial effects of this utility model are: a corrosion-resistant, long-life stainless steel pipe for boilers,

[0013] (1) Condensate is introduced from the inlet and then discharged from the outlet pipe and outlet through the spiral connecting pipe. The spiral connecting pipe increases the contact area with the steel pipe and the flow path of the condensate, which can absorb the heat of the steel pipe more fully and improve the cooling effect. It avoids the problems of material performance degradation and accelerated aging of the steel pipe due to long-term high temperature, greatly extends the service life of the steel pipe, reduces the equipment maintenance and replacement costs, and improves the overall stability and economy of operation.

[0014] (2) By rotating the first steel pipe, the fixing ring is connected to the installation ring by thread to achieve initial fixation. Then, the clamp is attached to the outer wall of both, and the nut is screwed on to squeeze the clamp to further strengthen the connection. This double fixation design effectively improves the stability of the connection between the first steel pipe and the second steel pipe, reduces the risk of loosening and falling off, and ensures safe and reliable use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the external and internal thread structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the bolt and nut structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the water inlet and connecting pipe structure of this utility model.

[0019] In the diagram: 1. First steel pipe; 2. Second steel pipe; 3. Fixing component; 4. Corrosion-resistant component; 301. Fixing ring; 302. External thread; 303. Mounting ring; 304. Internal thread; 305. Clamp; 306. Bolt; 307. Nut; 401. Inlet; 402. Inlet pipe; 403. Connecting pipe; 404. Outlet pipe; 405. Outlet. Detailed Implementation

[0020] 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.

[0021] This utility model embodiment provides a corrosion-resistant, long-life stainless steel pipe for use in boilers, such as... Figure 1 and Figure 4 As shown, the system includes a first steel pipe 1, a second steel pipe 2 at one end of the first steel pipe 1, a fixing component 3 on one side of the first steel pipe 1, and a corrosion-resistant component 4 inside the first steel pipe 1. The corrosion-resistant component 4 includes a water inlet 401, which is located inside the first steel pipe 1. One end of the water inlet 401 is fixedly connected to a water inlet pipe 402, one end of the water inlet pipe 402 is fixedly connected to a connecting pipe 403, one end of the connecting pipe 403 is fixedly connected to a water outlet pipe 404, and one end of the water outlet pipe 404 is fixedly connected to a water outlet 405. When heat transfer is not required, condensate can be introduced through the water inlet 401. The condensate enters the spirally arranged connecting pipe 403 through the water inlet 401, then enters the water outlet pipe 404 through the connecting pipe 403, and finally exits through the water outlet 405 to circulate, thereby cooling the steel pipe and improving its service life.

[0022] Furthermore, such as Figure 4 As shown, the inlet pipe 402 is connected to the outlet pipe 404 via the connecting pipe 403. One end of the connecting pipe 403 is fixedly connected to one end of the inlet pipe 402, and the other end of the connecting pipe 403 is fixedly connected to one end of the outlet pipe 404. Through the connecting pipe 403, the coolant can directly enter the outlet pipe 404 through the connecting pipe 403 when it enters the inlet pipe 402, thus improving the flow of condensate.

[0023] Furthermore, such as Figure 1 and Figure 4As shown, the first steel pipe 1 is provided with a connecting pipe 403 inside, and the connecting pipe 403 is spirally arranged, which increases the contact surface between the condensate and the first steel pipe 1 when the condensate passes through the connecting pipe 403, thereby improving the cooling effect and extending the service life of the steel pipe.

[0024] This utility model embodiment provides a corrosion-resistant, long-life stainless steel pipe for use in boilers, such as... Figure 1 , Figure 2 and Figure 3 As shown, the fixing component 3 includes a fixing ring 301, which is fixedly connected to the outer wall of the first steel pipe 1. The outer wall of the fixing ring 301 is provided with an external thread 302, and an installation ring 303 is threadedly connected to the outer wall of the external thread 302. The inner wall of the installation ring 303 is provided with an internal thread 304. A clamp 305 is provided on the outer wall of the fixing ring 301, and a bolt 306 is provided on one side of the clamp 305. A nut 307 is threadedly connected to the outer wall of the bolt 306. During installation, the first steel pipe 1 can be rotated first. This causes the fixing ring 301 to rotate, making the external thread 302 and the internal thread 304 threaded together, thus fixing the fixing ring 301 and the mounting ring 303 together, and then fixing the first steel pipe 1 and the second steel pipe 2 together. At this time, the clamp 305 is attached to the outer wall of the fixing ring 301 and the mounting ring 303, and then the nut 307 is screwed on to move along the outer wall of the bolt 306, so that the nut 307 presses against the outer wall of the clamp 305 for fixation, further strengthening the connection stability of the first steel pipe 1 and the second steel pipe 2.

[0025] Furthermore, such as Figure 2 As shown, the retaining ring 301 forms a fixed structure with the mounting ring 303 through the external thread 302, and the outer diameter of the external thread 302 matches the inner diameter of the internal thread 304. The outer wall of the external thread 302 fits against the inner wall of the internal thread 304, so that the retaining ring 301 can be threadedly connected to the internal thread 304 through the external thread 302 when rotating, thus fixing the retaining ring 301 and the mounting ring 303 and improving the fixing effect of the retaining ring 301 and the mounting ring 303.

[0026] Furthermore, such as Figure 3 As shown, the nut 307 forms a fixed structure with the bolt 306 and the clamp 305, and the nut 307 passes through the clamp 305 and is threadedly connected to the nut 307. By tightening the nut 307, the nut 307 can move on the outer wall of the bolt 306, thereby pressing the outer wall of the clamp 305 for fixation, which improves the fixing effect of the clamp 305.

[0027] Furthermore, such as Figure 3 As shown, the outer wall of the clamp 305 is provided with multiple bolts 306, and the bolts 306 are evenly distributed on the outer wall of the clamp 305, which allows the bolts 306 to fix the clamp 305 from multiple aspects, thereby improving the fixing effect of the bolts 306 on the clamp 305.

[0028] Working principle: During installation, the first steel pipe 1 is rotated first to drive the fixing ring 301 to rotate, so that the external thread 302 and the internal thread 304 are threaded together, and the fixing ring 301 is fixedly connected to the mounting ring 303, thereby fixing the first steel pipe 1 to the second steel pipe 2. At this time, the clamp 305 is attached to the outer wall of the fixing ring 301 and the mounting ring 303, and then the nut 307 is tightened to move along the outer wall of the bolt 306, so that the nut 307 presses against the outer wall of the clamp 305 for fixation, which further strengthens the connection stability between the first steel pipe 1 and the second steel pipe 2. If heat transfer is not required, condensate can be introduced from the inlet 401. The condensate enters the spirally arranged connecting pipe 403 through the inlet 401, then enters the outlet pipe 404 from the connecting pipe 403, and finally exits through the outlet 405 for circulation, cooling the steel pipe and improving its service life.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A corrosion-resistant, long-life stainless steel pipe for use in boilers, comprising a first steel pipe (1), characterized in that: A second steel pipe (2) is provided at one end of the first steel pipe (1), a fixing component (3) is provided on one side of the first steel pipe (1), and a corrosion-resistant component (4) is provided inside the first steel pipe (1). The corrosion-resistant component (4) includes an inlet (401) and the inlet (401) is located inside the first steel pipe (1). An inlet pipe (402) is fixedly connected to one end of the inlet (401), a connecting pipe (403) is fixedly connected to one end of the inlet pipe (402), an outlet pipe (404) is fixedly connected to one end of the connecting pipe (403), and an outlet (405) is fixedly connected to one end of the outlet pipe (404).

2. The corrosion-resistant, long-life stainless steel pipe for boilers according to claim 1, characterized in that: The inlet pipe (402) is connected to the outlet pipe (404) through the connecting pipe (403), and one end of the connecting pipe (403) is fixedly connected to one end of the inlet pipe (402), and the other end of the connecting pipe (403) is fixedly connected to one end of the outlet pipe (404).

3. The corrosion-resistant, long-life stainless steel pipe for boilers according to claim 1, characterized in that: The first steel pipe (1) is provided with a connecting pipe (403) inside, and the connecting pipe (403) is spirally arranged.

4. The corrosion-resistant, long-life stainless steel pipe for boilers according to claim 1, characterized in that: The fixing component (3) includes a fixing ring (301), which is fixedly connected to the outer wall of the first steel pipe (1). The outer wall of the fixing ring (301) is provided with an external thread (302). The outer wall of the external thread (302) is threadedly connected to an installation ring (303). The inner wall of the installation ring (303) is provided with an internal thread (304). The outer wall of the fixing ring (301) is provided with a clamp (305). A bolt (306) is provided on one side of the clamp (305). A nut (307) is threadedly connected to the outer wall of the bolt (306).

5. A corrosion-resistant, long-life stainless steel pipe for boilers according to claim 4, characterized in that: The fixing ring (301) forms a fixing structure with the mounting ring (303) through the external thread (302), and the outer diameter of the external thread (302) matches the inner diameter of the internal thread (304), and the outer wall of the external thread (302) fits against the inner wall of the internal thread (304).

6. A corrosion-resistant, long-life stainless steel pipe for boilers according to claim 4, characterized in that: The nut (307) is fixed to the clamp (305) by the bolt (306), and the nut (307) is threaded through the clamp (305).

7. A corrosion-resistant, long-life stainless steel pipe for boilers according to claim 4, characterized in that: The outer wall of the clamp (305) is provided with a plurality of bolts (306), and the bolts (306) are evenly distributed on the outer wall of the clamp (305).

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