Seamless stainless steel tube for high-pressure steam pipeline

Abstract

The utility model relates to the field of high-pressure steam pipelines, and discloses a stainless steel seamless steel pipe for a high-pressure steam pipeline, which comprises steel pipes, a plurality of compression-resistant components are arranged in the steel pipes to improve the strength of the steel pipes, and the two steel pipes are connected through a buckle component to be mutually connected. The two steel pipes are connected more stably, sealing assemblies are arranged on the sides, close to each other, of the two steel pipes and used for improving the sealing effect between the two steel pipes and reducing the influence caused by a gap between the two steel pipes, and the outer walls of the steel pipes are coated with heat preservation coatings used for improving the heat preservation performance of the steel pipes. The pressure resistance of the steel pipe is improved, when only one position of the steel pipe is stressed, the steel pipe can be dispersed, the stressed part is prevented from being broken, the sealing effect between the two steel pipes is improved, the influence caused by a gap between the two steel pipes is reduced, and the steam conveying effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of high-pressure steam pipelines, in particular to a stainless steel seamless pipe for high-pressure steam pipelines. Background Art

[0002] High-pressure steam pipes are steel pipes used to transport high-temperature, high-pressure steam. They are typically made of high-quality carbon steel or alloy steel because these materials can withstand high pressures and temperatures. Their walls are thick to ensure sufficient strength to withstand the pressure generated by the steam within. They are widely used in power plants, petrochemicals, and many other industrial sectors. For example, in power plants, they transport high-temperature, high-pressure steam generated by boilers to steam turbines, which drive generators to generate electricity. Their excellent sealing properties prevent steam leakage, and their high corrosion resistance ensure long-term stable operation in harsh operating environments.

[0003] However, the current steel pipes have low strength due to their hollow internal structure. When subjected to pressure at a single location, they are more likely to deform or even rupture that location. In addition, the sealing effect of the joints of the current steel pipes is poor, causing some steam to escape from the gaps during steam transportation, resulting in poor steam transportation efficiency.

[0004] In view of this, in order to solve this technical problem, the present application proposes a stainless steel seamless pipe for a high-pressure steam pipeline. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art, and the proposed stainless steel seamless pipe for high-pressure steam pipeline is intended to improve the compressive performance of the steel pipe, so that when the steel pipe is under pressure at only one position, it can be dispersed to prevent the compressed part from rupturing, and to improve the sealing effect between the two steel pipes, reduce the impact of the gap between the two steel pipes, and improve the steam transportation effect.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The stainless steel seamless pipe for high-pressure steam pipeline includes two steel pipes for conveying fluid. A plurality of pressure-resistant components are arranged inside the steel pipes to improve the strength of the steel pipes and prevent the steel pipes from breaking due to excessive external pressure. The two steel pipes are connected by a snap-fit ​​assembly to connect the two steel pipes to each other, making the connection between the two steel pipes more stable. A sealing assembly is arranged on the adjacent side of the two steel pipes to improve the sealing effect between the two steel pipes and reduce the impact of the gap between the two steel pipes. The outer wall of the steel pipe is coated with an insulating coating to improve the thermal insulation performance of the steel pipe.

[0008] Furthermore, the pressure-resistant assembly includes a plurality of support plates fixedly connected to the interior of the steel pipe, and a support leg is fixedly connected to one side of the support plate.

[0009] Furthermore, a circular ring is fixedly connected between the three legs, and round rods are fixedly connected inside the plurality of circular rings.

[0010] Furthermore, the buckle assembly includes a slot block fixedly connected to the front and rear sides of the right end of the outer wall of the steel pipe, and two fixing plates are fixedly connected to the front and rear sides of the left end of the outer wall of the steel pipe.

[0011] Furthermore, a first metal rod is fixedly connected to the interior of the slot block, a second metal rod is fixedly connected between the upper and lower fixing plates, and the first metal rod and the second metal rod are connected via a buckle rod.

[0012] Furthermore, one end of the buckle rod is engaged with the outer wall of the first metal rod, and the other end of the buckle rod is rotatably connected to the outer wall of the second metal rod.

[0013] Furthermore, a baffle is slidably connected to the top side of the front side of the card slot block, and the bottom end of the baffle is plugged into the bottom side of the front side of the card slot block.

[0014] Furthermore, the sealing assembly includes an insert ring fixedly connected to the left end of the steel pipe, a slot is provided on the right side of the steel pipe, and the insert ring is inserted into the slot.

[0015] Furthermore, a plurality of sealing rings are fixedly connected to the outer wall of the insert ring, a plurality of sealing grooves are opened inside the slot, and the sealing rings are interference-fitted inside the sealing grooves.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, the pressure transmitted from the support plate is transmitted to the ring through the support legs, and then the pressure is transmitted to the support plates at other positions through the round rods, thereby dispersing the pressure to various positions of the steel pipe, thereby improving the compressive performance of the steel pipe, so that when the steel pipe is under pressure at only one position, it can be dispersed to prevent the pressure-exposed position from rupturing.

[0018] 2. In the present invention, the sealing between the two steel pipes is improved by inserting the insert ring into the slot, and the sealing between the two steel pipes is further improved by inserting the sealing ring into the sealing groove, thereby improving the sealing effect between the two steel pipes, reducing the impact of the gap between the two steel pipes, and improving the steam transportation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a stainless steel seamless pipe for a high-pressure steam pipeline proposed in the present utility model;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the steel pipe structure of the stainless steel seamless steel pipe for high-pressure steam pipeline proposed in the present utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the stainless steel seamless pipe for high-pressure steam pipeline proposed in the present invention;

[0023] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0024] Figure 6 for Figure 4 Enlarged view of point C in the middle.

[0025] Legend:

[0026] 1. Steel pipe; 2. Slot block; 3. First metal rod; 4. Baffle; 5. Buckle rod; 6. Second metal rod; 7. Fixing plate; 8. Round rod; 9. Ring; 10. Support leg; 11. Support plate; 12. Insert ring; 13. Sealing ring; 14. Sealing groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figure 1 and Figure 4The utility model provides an embodiment of a stainless steel seamless steel pipe for a high-pressure steam pipeline, comprising two steel pipes 1 for conveying fluid, the two steel pipes 1 being connected to each other, the outer walls of the steel pipes 1 being coated with a thermal insulation coating for improving the thermal insulation performance of the steel pipes 1, a plurality of support plates 11 being fixedly connected inside the steel pipes 1, the pressure exerted on the steel pipes 1 being transmitted to the support legs 10 through the support plates 11, a support leg 10 being fixedly connected to one side of the support plate 11, a circular ring 9 being fixedly connected between the three support legs 10, a circular rod 8 being fixedly connected inside the plurality of circular rings 9, the pressure transmitted from the support plates 11 being transmitted to the circular ring 9 through the support legs 10, and then the pressure being transmitted to the support plates 11 at other positions through the circular rod 8, thereby dispersing the pressure to various positions of the steel pipes 1, thereby improving the compressive performance of the steel pipes 1, enabling the steel pipes 1 to disperse the pressure when only one position is under pressure, thereby preventing the pressurized portion from rupturing.

[0029] Reference Figure 2 and Figure 3 The left end of the upper and lower ends of the steel pipe 1 are fixedly connected to the front and rear side slot blocks 2, and the front and rear sides of the left end of the outer wall of the steel pipe 1 are fixedly connected to two fixing plates 7. The inside of the slot block 2 is fixedly connected to the first metal rod 3, and the second metal rod 6 is fixedly connected between the upper and lower fixing plates 7. The first metal rod 3 and the second metal rod 6 are connected by a clip rod 5. One end of the clip rod 5 is engaged with the outer wall of the first metal rod 3, and the other end of the clip rod 5 is rotatably connected to the outer wall of the second metal rod 6. By engaging the clip rod 5 with the outer wall of the first metal rod 3, the first metal rod 3 and the second metal rod 6 are connected together, thereby connecting the two steel pipes 1 together. The top side of the front side of the inner side of the slot block 2 is slidably connected with a baffle 4, and the bottom end of the baffle 4 is inserted into the bottom side of the front side of the inner side of the slot block 2. By inserting the baffle 4 into the bottom side of the front side of the inner side of the slot block 2, the baffle 4 is blocked in front of the clip rod 5, thereby preventing the clip rod 5 from disengaging from the second metal rod 6. Figure 5 and Figure 6 The left end of the steel pipe 1 is fixedly connected with an insert ring 12, and a slot is provided on the right side of the steel pipe 1. The insert ring 12 is inserted into the slot. The sealing between the two steel pipes 1 is improved by inserting the insert ring 12 into the slot. The outer wall of the insert ring 12 is fixedly connected with multiple sealing rings 13, and multiple sealing grooves 14 are provided inside the slot. The sealing ring 13 is interference fit inside the sealing groove 14. By inserting the sealing ring 13 into the sealing groove 14, the sealing between the two steel pipes 1 is further improved.

[0030] Working principle: First, connect the two steel pipes 1 to each other. When docking the two steel pipes 1, first align the insert ring 12 with the slot, and then insert the insert ring 12 into the slot. During the process of inserting the insert ring 12 into the slot, the sealing ring 13 will gradually engage with the sealing groove 14. After the insert ring 12 is inserted into the slot, rotate the snap rod 5 so that one end is engaged with the outer wall of the first metal rod 3, and then insert the bottom end of the baffle 4 into the bottom side of the front side of the slot block 2, so as to prevent the snap rod 5 from being separated from the first metal rod 3, and then The two steel pipes 1 are connected together. When a certain position of the steel pipe 1 is subjected to pressure, the pressure on the steel pipe 1 is transmitted to the support leg 10 through the support plate 11, and then the pressure transmitted by the support plate 11 is transmitted to the ring 9 through the support leg 10. Then, the pressure is transmitted to the support plate 11 at other positions through the round rod 8, and then the pressure is dispersed to various positions of the steel pipe 1, thereby improving the compressive performance of the steel pipe 1, so that when the steel pipe 1 is subjected to pressure at only one position, the pressure can be dispersed to prevent the pressure-exposed position from rupturing.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Stainless steel seamless pipe for high-pressure steam pipeline, characterized by: The invention comprises two steel pipes (1) for conveying fluids, wherein a plurality of pressure-resistant components are arranged inside the steel pipes (1) to improve the strength of the steel pipes (1) and prevent the steel pipes (1) from being broken due to excessive external pressure. The two steel pipes (1) are connected by a snap-fit ​​component to connect the two steel pipes (1) to each other, so that the connection between the two steel pipes (1) is more stable. A sealing component is arranged on the adjacent side of the two steel pipes (1) to improve the sealing effect between the two steel pipes (1) and reduce the influence of the gap between the two steel pipes (1). The outer wall of the steel pipe (1) is coated with a thermal insulation coating for improving the thermal insulation performance of the steel pipe (1).

2. The seamless stainless steel pipe for high-pressure steam pipeline according to claim 1, characterized in that: The pressure-resistant assembly comprises a plurality of support plates (11) fixedly connected to the interior of the steel pipe (1), and a support leg (10) is fixedly connected to one side of the support plate (11).

3. The seamless stainless steel pipe for high-pressure steam pipe according to claim 2, characterized in that: A circular ring (9) is fixedly connected between the three supporting legs (10), and a round rod (8) is fixedly connected inside the plurality of circular rings (9).

4. The seamless stainless steel pipe for high-pressure steam pipe according to claim 1, characterized in that: The buckle assembly comprises a slot block (2) fixedly connected to the front and rear sides of the right end of the outer wall of the steel pipe (1), and two fixing plates (7) fixedly connected to the front and rear sides of the left end of the outer wall of the steel pipe (1).

5. The seamless stainless steel pipe for high-pressure steam pipeline according to claim 4, characterized in that: A first metal rod (3) is fixedly connected to the interior of the slot block (2), a second metal rod (6) is fixedly connected between the upper and lower fixing plates (7), and the first metal rod (3) and the second metal rod (6) are connected via a buckle rod (5).

6. The seamless stainless steel pipe for high-pressure steam pipeline according to claim 5, characterized in that: One end of the snap rod (5) is snapped onto the outer wall of the first metal rod (3), and the other end of the snap rod (5) is rotatably connected to the outer wall of the second metal rod (6).

7. The seamless stainless steel pipe for high-pressure steam pipe according to claim 6, characterized in that: The top side of the inner front side of the card slot block (2) is slidably connected with a baffle (4), and the bottom end of the baffle (4) is plugged into the bottom side of the inner front side of the card slot block (2).

8. The seamless stainless steel pipe for high-pressure steam pipeline according to claim 1, characterized in that: The sealing assembly comprises an insert ring (12) fixedly connected to the left end of the steel pipe (1); a slot is provided on the right side of the steel pipe (1), and the insert ring (12) is inserted into the slot.

9. The seamless stainless steel pipe for high-pressure steam pipeline according to claim 8, characterized in that: The outer wall of the insert ring (12) is fixedly connected with a plurality of sealing rings (13), and a plurality of sealing grooves (14) are provided inside the slot. The sealing rings (13) are interference-fitted inside the sealing grooves (14).

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