CN223282700U - Stainless steel seamless pipes for high-pressure steam pipelines - Google Patents

Abstract

The utility model relates to the field of high-pressure steam pipelines and discloses a stainless steel seamless steel pipe for high-pressure steam pipelines, comprising a steel pipe, wherein a plurality of pressure-resistant components are provided inside the steel pipe to improve the strength of the steel pipe, two of the steel pipes are connected by a snap-fit component to connect the two steel pipes to each other, making the connection between the two steel pipes more stable, a sealing component is provided 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, and the outer wall of the steel pipe is coated with a thermal insulation coating for improving the thermal insulation performance of the steel pipe. In the utility model, the pressure resistance of the steel pipe is improved, so that when the steel pipe is subjected to pressure at only one position, the pressure can be dispersed to prevent the pressured part from rupturing, and the sealing effect between the two steel pipes is improved, reducing the impact of the gap between the two steel pipes, and improving the steam transportation effect.

Description

Stainless steel seamless steel pipe for high-pressure steam pipeline

Technical Field

The utility model relates to the field of high-pressure steam pipelines, in particular to a stainless steel seamless steel pipe for a high-pressure steam pipeline.

Background

The high-pressure steam steel pipe is a steel pipe for conveying high-temperature and high-pressure steam. It is typically made of high quality carbon or alloy steel because of the high pressures and temperatures that these materials can withstand. The walls of which are thicker to ensure sufficient strength against the pressure generated by the internal steam. The high-temperature high-pressure steam generated by the boiler is conveyed to the steam turbine to drive the generator to generate electricity in the power plant, the petrochemical industry and other industrial fields. The sealing material has good sealing performance, can prevent steam leakage, has higher corrosion resistance and can stably work for a long time under a severe working environment.

However, the strength of the existing steel pipe is lower due to the hollow structure in the steel pipe, deformation and even cracking of the part are easy to occur when the steel pipe is subjected to pressure at a single position, and the sealing effect of the joint seam of the existing steel pipe is poor, so that part of steam overflows from the seam when the steam is conveyed, and the steam conveying effect is poor;

In response to this problem, the present application proposes a stainless steel seamless steel pipe for high-pressure steam pipes.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a stainless steel seamless steel pipe for a high-pressure steam pipeline, which aims to improve the compression resistance of the steel pipe, ensure that the steel pipe can be dispersed when only one position is stressed, prevent the part subjected to the stress from being broken, improve the sealing effect between two steel pipes, reduce the influence caused by a gap between the two steel pipes and improve the steam conveying effect.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

Stainless steel seamless steel pipe for high pressure steam line, including two steel pipes that are used for carrying fluid, the inside of steel pipe is provided with a plurality of compression resistance components for improve the intensity of steel pipe, prevent that the steel pipe from breaking because of receiving external too high pressure, two link to each other through buckle subassembly between the steel pipe, in order to be used for getting up two steel pipes interconnect, make connect between two steel pipes more firm, two near one side of steel pipe is provided with seal assembly, in order to be used for improving the sealed effect between two steel pipes, reduce the influence that the gap brought between two steel pipes, the outer wall of steel pipe is scribbled the thermal insulation coating that is used for improving steel pipe thermal insulation properties.

Further, the compression-resistant assembly comprises a plurality of support plates fixedly connected inside the steel pipe, and one side of each support plate is fixedly connected with a supporting leg.

Further, a circular ring is fixedly connected between the three supporting legs, and round rods are fixedly connected inside the circular rings.

Further, the buckle assembly comprises clamping groove blocks fixedly connected to the front side and the rear side of the right end of the outer wall of the steel tube, and two fixing plates are fixedly connected to the front side and the rear side of the left end of the outer wall of the steel tube.

Further, the inside fixedly connected with first metal pole of draw-in groove piece, upper and lower two fixedly connected with second metal pole between the fixed plate, link to each other through the buckle pole between first metal pole and the second metal pole.

Further, one end of the buckling rod is clamped on the outer wall of the first metal rod, and the other end of the buckling rod is rotationally connected to the outer wall of the second metal rod.

Further, the top side sliding of the inside front side of draw-in groove piece is connected with the baffle, the bottom of baffle peg graft the bottom side of the inside front side of draw-in groove piece.

Further, the sealing component comprises an inserting ring fixedly connected to the left end of the steel pipe, a slot is arranged on the right side of the steel pipe, the inserting ring is inserted into the slot,

Further, the outer wall fixedly connected with a plurality of sealing rings of inserted ring, a plurality of seal grooves have been seted up to the slot inside, sealing washer interference fit is in the inside of seal groove.

The utility model has the following beneficial effects:

1. According to the utility model, the pressure transmitted by the support plate is transmitted to the circular ring through the support legs, then the pressure is transmitted to the support plates at other positions through the circular rods, and then the pressure is dispersed to each position of the steel pipe, so that the compression resistance of the steel pipe is improved, the steel pipe can be dispersed when only one position is subjected to the pressure, and the rupture of the position subjected to the pressure is prevented.

2. According to the utility model, the tightness between the two steel pipes is improved by inserting the insert ring into the slot, and the tightness between the two steel pipes is further improved by inserting the seal ring into the seal groove, so that 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.

Drawings

Fig. 1 is a perspective view of a stainless steel seamless steel pipe for a high-pressure steam pipeline according to the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

Fig. 3 is a schematic view of the structure of a stainless steel seamless steel pipe for a high-pressure steam pipeline;

Fig. 4 is a schematic view of the internal structure of a stainless steel seamless steel pipe for a high-pressure steam pipeline according to the present utility model;

FIG. 5 is an enlarged view at B in FIG. 4;

fig. 6 is an enlarged view at C in fig. 4.

Legend description:

1. a steel pipe; 2, a clamping groove block, 3, a first metal rod, 4, a baffle, 5, a clamping rod, 6, a second metal rod, 7, a fixed plate, 8, a round rod, 9, a round ring, 10, a supporting leg, 11, a supporting plate, 12, an inserting ring, 13, a sealing ring, 14 and a sealing groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 4, the stainless steel seamless steel pipe for the high-pressure steam pipeline comprises two steel pipes 1 for conveying fluid, wherein the two steel pipes 1 are connected, a heat insulation coating for improving the heat insulation performance of the steel pipes 1 is coated on the outer wall of each steel pipe 1, a plurality of support plates 11 are fixedly connected inside each steel pipe 1, the pressure born by the steel pipes 1 is transmitted to one support leg 10 through the support plates 11, one side of each support plate 11 is fixedly connected with one support leg 10, rings 9 are fixedly connected between the three support legs 10, round rods 8 are fixedly connected inside the plurality of rings 9, the pressure transmitted by the support plates 11 is conveyed to the rings 9 through the support legs 10, then the pressure is conveyed to the support plates 11 at other positions through the round rods 8, and the pressure is dispersed to each position of the steel pipes 1, so that the compression resistance of the steel pipes 1 is improved, and the pressure-bearing parts of the steel pipes 1 can be dispersed when only one position is subjected to the pressure, and the pressure-bearing parts are prevented from being broken.

Referring to fig. 2 and 3, the right end of the outer wall of the steel pipe 1 is fixedly connected with a clamping groove block 2 on the front and rear sides, the front and rear sides of the left end of the outer wall of the steel pipe 1 are fixedly connected with two fixing plates 7, the inside of the clamping groove block 2 is fixedly connected with a first metal rod 3, a second metal rod 6 is fixedly connected between the upper fixing plate 7 and the lower fixing plate 7, the first metal rod 3 and the second metal rod 6 are connected through a clamping rod 5, one end of the clamping rod 5 is clamped on the outer wall of the first metal rod 3, the other end of the clamping rod 5 is rotatably connected on the outer wall of the second metal rod 6, the clamping rod 5 is clamped on the outer wall of the first metal rod 3, so that the first metal rod 3 and the second metal rod 6 are connected together, the two steel pipes 1 are connected together, the top side of the front side inside the clamping groove block 2 is laterally connected with a baffle 4, the bottom of baffle 4 is pegged graft the bottom side of the inside front side of draw-in groove piece 2, through the bottom side of inserting the inside front side of draw-in groove piece 2 with baffle 4, make baffle 4 keep off in the front of buckle pole 5, thereby prevent that buckle pole 5 from breaking away from second metal pole 6, refer to fig. 5 and 6, steel pipe 1 left end fixedly connected with inserts ring 12, the slot has been seted up on the right side of steel pipe 1, insert ring 12 is pegged graft inside the slot, through inserting ring 12 inside the slot and improve the leakproofness between two steel pipes 1, a plurality of sealing washer 13 of outer wall fixedly connected with of inserting ring 12, a plurality of seal grooves 14 have been seted up inside the slot, sealing washer 13 interference fit is in the inside of seal groove 14, through inserting sealing washer 13 in seal groove 14, make the leakproofness between two steel pipes 1 further improve.

The working principle is that firstly, when two steel pipes 1 are in butt joint, firstly, the insert ring 12 is aligned with the slot, then the insert ring 12 is inserted into the slot, when the insert ring 12 is inserted into the slot, the seal ring 13 is gradually clamped into the seal groove 14, after the insert ring 12 is inserted into the slot, the clamping rod 5 is rotated to enable one end of the clamping rod to be clamped onto the outer wall of the first metal rod 3, then the bottom end of the baffle 4 is inserted into the bottom side of the inner front side of the clamping groove block 2, so that the clamping rod 5 is prevented from separating from the first metal rod 3, the two steel pipes 1 are connected together, when a certain position of the steel pipe 1 is stressed, the pressure stressed by the steel pipe 1 is transmitted to the supporting leg 10 through the supporting leg 11, then the pressure transmitted by the supporting leg 11 is transmitted to the circular ring 9, and then the pressure is transmitted to the supporting leg 11 at other positions through the circular rod 8, and further the pressure is dispersed to each position of the steel pipe 1, so that the compression resistance of the steel pipe 1 is improved, and the pressure can be prevented from being broken when the pressure is dispersed at one position.

It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.

Claims (9)

1. The stainless steel seamless steel pipe for the high-pressure steam pipeline is characterized by comprising two steel pipes (1) for conveying fluid, wherein a plurality of compression-resistant components are arranged in the steel pipes (1) and used for improving the strength of the steel pipes (1) and preventing the steel pipes (1) from being broken due to the fact that the steel pipes are subjected to the external too high pressure, the two steel pipes (1) are connected through a clamping component and used for connecting the two steel pipes (1) together, the two steel pipes (1) are connected more firmly, a sealing component is arranged on one side, close to the two steel pipes (1), of each steel pipe, so that the sealing effect between the two steel pipes (1) is improved, the influence caused by gaps between the two steel pipes (1) is reduced, and the outer wall of each steel pipe (1) is coated with a heat-insulating coating for improving the heat-insulating performance of the steel pipes (1).

2. The stainless steel seamless steel tube for a high-pressure steam pipeline according to claim 1, wherein the compression-resistant assembly comprises a plurality of support plates (11) fixedly connected inside the steel tube (1), and one side of each support plate (11) is fixedly connected with a supporting leg (10).

3. The stainless steel seamless steel tube for the high-pressure steam pipeline according to claim 2, wherein a circular ring (9) is fixedly connected between the three supporting legs (10), and round rods (8) are fixedly connected inside the circular rings (9).

4. The stainless steel seamless steel tube for the high-pressure steam pipeline according to claim 1, wherein the buckle assembly comprises clamping groove blocks (2) fixedly connected to the front side and the rear side of the right end of the outer wall of the steel tube (1), and two fixing plates (7) are fixedly connected to the front side and the rear side of the left end of the outer wall of the steel tube (1).

5. The stainless steel seamless steel tube for the high-pressure steam pipeline according to claim 4, wherein a first metal rod (3) is fixedly connected to the inside of the clamping groove block (2), a second metal rod (6) is fixedly connected between the upper fixing plate (7) and the lower fixing plate (7), and the first metal rod (3) and the second metal rod (6) are connected through a clamping rod (5).

6. The stainless steel seamless steel tube for the high-pressure steam pipeline according to claim 5, wherein one end of the buckling rod (5) is buckled on the outer wall of the first metal rod (3), and the other end of the buckling rod (5) is rotatably connected on the outer wall of the second metal rod (6).

7. The stainless steel seamless steel tube for the high-pressure steam pipeline according to claim 6, wherein the top side of the inner front side of the clamping groove block (2) is connected with the baffle plate (4) in a sliding mode, and the bottom end of the baffle plate (4) is inserted into the bottom side of the inner front side of the clamping groove block (2).

8. The stainless steel seamless steel tube for the high-pressure steam pipeline according to claim 1, wherein the sealing assembly comprises an inserting ring (12) fixedly connected to the left end of the steel tube (1), a slot is formed in the right side of the steel tube (1), and the inserting ring (12) is inserted into the slot.

9. The stainless steel seamless steel tube for the high-pressure steam pipeline according to claim 8, wherein a plurality of sealing rings (13) are fixedly connected to the outer wall of the insert ring (12), a plurality of sealing grooves (14) are formed in the insert ring, and the sealing rings (13) are in interference fit with the sealing grooves (14).