Heat-preservation pressure-resistant stainless steel seamless steel pipe

Abstract

The utility model relates to a heat-preservation pressure-resistant stainless steel seamless steel pipe which comprises a pipe body, a heat-preservation cavity is formed in the pipe body, a pressure-resistant heat-preservation structure is arranged in the heat-preservation cavity, the pressure-resistant heat-preservation structure comprises pressure-resistant blocks and connecting belts, the pressure-resistant blocks are adjacently and tightly arranged, and the adjacent pressure-resistant blocks are circumferentially arranged in the heat-preservation cavity at intervals; the connecting belts are connected between the circumferentially-opposite pressure-resistant blocks, the connecting belts are longitudinally arranged between the opposite pressure-resistant blocks at intervals, and a heat preservation layer is arranged between every two adjacent connecting belts. According to the stainless steel seamless steel pipe, the adjacent and tightly-attached pressure-resistant blocks are arranged, the pressure-resistant capacity of circumferential sites can be improved, the circumferential pressure-resistant blocks are connected through the connecting belts, the connecting belts are longitudinally arranged on the pressure-resistant blocks at intervals, the overall structural strength can be improved, and the pressure-resistant performance of the stainless steel seamless steel pipe is higher; meanwhile, the spaced connecting belts also provide accommodating space for the arrangement of the heat preservation layer, and the heat preservation layer provides heat preservation performance.

Description

Technical Field

[0001] The present application relates to the technical field of stainless steel pipes, and in particular to a heat-insulating and pressure-resistant stainless steel seamless pipe. Background Art

[0002] Stainless steel pipes have different characteristics in different usage environments. For example, stainless steel pipes in chemical industry need to be coated with anti-corrosion paint; when used in mechanical construction, the structural strength of stainless steel pipes needs to be improved; and equipment that uses stainless steel pipes as liquid delivery pipelines has higher requirements for the compressive resistance and thermal insulation performance of stainless steel pipes.

[0003] With respect to the above-mentioned related technologies, the applicant believes that it is difficult for current stainless steel pipes to have both pressure resistance and heat preservation properties, and therefore still needs to be improved. Utility Model Content

[0004] In order to make the stainless steel pipe have both pressure resistance and heat preservation properties, the present application provides a heat-insulating and pressure-resistant stainless steel seamless pipe.

[0005] The present application provides a heat-insulating and pressure-resistant stainless steel seamless pipe adopting the following technical solution:

[0006] An insulated and pressure-resistant stainless steel seamless pipe comprises a pipe body, a heat-insulating cavity is formed in the pipe body, a pressure-resistant and heat-insulating structure is arranged in the heat-insulating cavity, the pressure-resistant and heat-insulating structure comprises pressure-resistant blocks and connecting belts, the pressure-resistant blocks are arranged adjacent to each other and closely, and adjacent pressure-resistant blocks are arranged circumferentially at intervals in the heat-insulating cavity, the connecting belts are connected between the circumferentially opposite pressure-resistant blocks, and the connecting belts are arranged longitudinally at intervals between the opposite pressure-resistant blocks, and an insulation layer is arranged between adjacent connecting belts.

[0007] By adopting the above technical solution, adjacent tightly-fitting compression blocks can improve the compressive resistance at circumferential positions, the connecting belt realizes the connection between the circumferential compression blocks, and the longitudinally spaced arrangement of the connecting belt on the compression blocks is also beneficial to improving the overall structural strength, making the compression resistance of the stainless steel seamless steel pipe stronger; at the same time, the spaced connecting belts also provide accommodation space for the setting of the insulation layer, and the insulation performance is provided by the insulation layer.

[0008] Preferably, adjacent tightly-fitting anti-compression blocks are arranged at the upper, lower, left and right positions of the heat preservation cavity, and the outer diameter of the anti-compression block close to the outside of the heat preservation cavity is larger than the inner diameter of the anti-compression block close to the inside of the heat preservation cavity.

[0009] By adopting the above technical solution, relative pressure-resistant blocks are circumferentially arranged on the upper, lower, left and right sides of the insulation cavity, thereby improving the pressure resistance of the upper, lower, left and right sides of the stainless steel seamless pipe that are easily subjected to pressure; the outer diameter of the pressure-resistant block is larger than the inner diameter, which can increase the pressure-resistant area to withstand the pressure from outside the stainless steel seamless pipe.

[0010] Preferably, a buffer structure is provided in the connecting belt.

[0011] By adopting the above technical solution, the buffer structure in the connecting belt assists the stainless steel seamless steel pipe to form a stable pressure-resistant structure in the circumferential direction, thereby obtaining pressure-resistant performance.

[0012] Preferably, the buffer structure includes a support plate and a deformable plate, the support plate is fixed to the middle of the connecting belt, the deformable plates are arranged at intervals in an arc shape, and the deformable plates are symmetrically arranged on both sides of the support plate.

[0013] By adopting the above technical solution, the support plate improves the structural strength of the connecting belt, and the deformable plate is used to play a buffering role by deforming when under pressure, thereby improving the compressive resistance.

[0014] Preferably, vertical plates longitudinally connected to the support plates are fixed between the spaced deformable plates.

[0015] By adopting the above technical solution, the vertical plates further help to enhance the structural strength of the connecting belt on the one hand, and also enhance the structural strength of the adjacent deformable plates on the other hand.

[0016] Preferably, the thermal insulation layer includes a polyurethane foam layer and a glass wool layer that are adjacently arranged.

[0017] By adopting the above technical solution, the dual thermal insulation properties of the polyurethane foam layer and the glass wool layer are utilized to synergistically improve the thermal insulation performance of the stainless steel seamless steel pipe.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] Adjacent and tightly-fitting compression blocks can improve the compressive resistance at the circumferential sites. The connecting belt realizes the connection between the circumferential compression blocks. The longitudinal spacing of the connecting belt on the compression blocks is also conducive to improving the overall structural strength, making the compression resistance of the stainless steel seamless steel pipe stronger. At the same time, the spaced connecting belts also provide space for the setting of the insulation layer, and the insulation layer provides thermal insulation performance.

[0020] The relative anti-compression blocks are arranged circumferentially on the upper, lower, left and right sides of the insulation cavity to improve the anti-compression performance of the upper, lower, left and right parts of the stainless steel seamless pipe that are easily compressed. The outer diameter of the anti-compression block is larger than the inner diameter, which can increase the anti-compression area to withstand the pressure from outside the stainless steel seamless pipe.

[0021] The support plate improves the structural strength of the connecting belt, and the deformable plate is used to play a buffering role by deforming when under pressure. On the one hand, the vertical plate further helps to enhance the structural strength of the connecting belt, and on the other hand, it also enhances the structural strength of the adjacent deformable plates and improves the compressive performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of an embodiment of the present application.

[0023] Explanation of the accompanying symbols: 1. Tube body; 11. Insulation cavity; 2. Pressure-resistant insulation structure; 21. Pressure-resistant block; 22. Connecting belt; 3. Insulation layer; 31. Polyurethane foam layer; 32. Glass wool layer; 4. Buffer structure; 41. Support plate; 42. Deformation plate; 5. Vertical plate. DETAILED DESCRIPTION

[0024] The present application is further described in detail below with reference to the accompanying drawings.

[0025] The present application discloses a heat-insulating and pressure-resistant stainless steel seamless pipe. Figure 1 , including a tube body 1, a heat preservation cavity 11 is formed in the tube body 1, and a pressure-resistant heat preservation structure 2 is provided in the heat preservation cavity 11 to provide the tube body 1 with pressure-resistant heat preservation performance.

[0026] Reference Figure 1 The pressure-resistant and heat-insulating structure 2 includes pressure-resistant blocks 21 and connecting belts 22. The pressure-resistant blocks 21 are arranged adjacent to each other and closely, and the adjacent pressure-resistant blocks 21 are arranged at circumferential intervals in the heat-insulating cavity 11. The connecting belts 22 are connected between the circumferentially opposite pressure-resistant blocks 21, and the connecting belts 22 are arranged at longitudinal intervals between the opposite pressure-resistant blocks 21. An insulation layer 3 is arranged between adjacent connecting belts 22. The adjacent and closely-fitting pressure-resistant blocks 21 can improve the pressure resistance at the circumferential position. The connecting belts 22 realize the connection between the circumferential pressure-resistant blocks 21, and the longitudinal intervals of the connecting belts 22 on the pressure-resistant blocks 21 are also beneficial to improving the overall structural strength, making the pressure resistance of the stainless steel seamless steel pipe stronger. At the same time, the spaced connecting belts 22 also provide an accommodation space for the setting of the insulation layer 3, and the insulation performance is provided by the insulation layer 3.

[0027] Reference Figure 1 Adjacent and tightly-fitting anti-compression blocks 21 are arranged at the upper, lower, left and right positions of the insulation chamber 11, and the relative anti-compression blocks 21 are circumferentially arranged at the upper, lower, left and right positions of the insulation chamber 11, thereby improving the anti-compression performance of the upper, lower, left and right positions of the stainless steel seamless steel pipe that are easily subjected to pressure.

[0028] Reference Figure 1 The outer diameter of the pressure-resistant block 21 close to the outside of the insulation chamber 11 is larger than the inner diameter of the pressure-resistant block 21 close to the inside of the insulation chamber 11, which can increase the pressure-resistant area to withstand the pressure from the outside of the stainless steel seamless steel pipe.

[0029] Reference Figure 1 The insulation layer 3 includes a polyurethane foam layer 31 and a glass wool layer 32 that are adjacent to each other. The dual insulation properties of the polyurethane foam layer 31 and the glass wool layer 32 are used to synergistically improve the insulation performance of the stainless steel seamless pipe.

[0030] Reference Figure 1 A buffer structure 4 is provided in the connecting belt 22 to assist the stainless steel seamless steel pipe in forming a stable pressure-resistant structure in the circumferential direction and obtaining pressure-resistant performance.

[0031] Reference Figure 1 The buffer structure 4 includes a support plate 41 and a deformation plate 42. The support plate 41 is fixed to the middle of the connecting belt 22. The deformation plates 42 are arranged at intervals in an arc shape, and the deformation plates 42 are symmetrically arranged on both sides of the support plate 41. The support plate 41 improves the structural strength of the connecting belt 22, and the deformation plate 42 is used to play a buffering role by deformation when under pressure, thereby improving the pressure resistance.

[0032] Reference Figure 1 A vertical plate 5 longitudinally connected to the support plate 41 is fixed between the spaced deformable plates 42. The vertical plate 5 further helps to enhance the structural strength of the connecting belt 22 on the one hand, and also enhances the structural strength of the adjacent deformable plates 42 on the other hand.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A heat-insulating and pressure-resistant stainless steel seamless pipe, comprising a pipe body (1), characterized in that: A heat-insulating cavity (11) is formed in the tube body (1), and a pressure-resistant heat-insulating structure (2) is provided in the heat-insulating cavity (11). The pressure-resistant heat-insulating structure (2) includes pressure-resistant blocks (21) and connecting belts (22). The pressure-resistant blocks (21) are arranged adjacent to each other and closely, and the adjacent pressure-resistant blocks (21) are arranged at circumferential intervals in the heat-insulating cavity (11). The connecting belts (22) are connected between the circumferentially opposite pressure-resistant blocks (21), and the connecting belts (22) are arranged at longitudinal intervals between the opposite pressure-resistant blocks (21). A heat-insulating layer (3) is provided between the adjacent connecting belts (22).

2. The heat-insulating and pressure-resistant stainless steel seamless pipe according to claim 1, characterized in that: Adjacent tightly attached anti-compression blocks (21) are arranged at the upper, lower, left and right sides of the heat preservation chamber (11), and the outer diameter of the anti-compression block (21) close to the outside of the heat preservation chamber (11) is larger than the inner diameter of the anti-compression block (21) close to the inside of the heat preservation chamber (11).

3. The heat-insulating and pressure-resistant stainless steel seamless pipe according to claim 1, characterized in that: A buffer structure (4) is provided in the connecting belt (22).

4. The heat-insulating and pressure-resistant stainless steel seamless pipe according to claim 3, characterized in that: The buffer structure (4) comprises a support plate (41) and a deformable plate (42); the support plate (41) is fixed to the middle of the connecting belt (22); the deformable plates (42) are arranged at intervals in an arc shape, and the deformable plates (42) are symmetrically arranged on both sides of the support plate (41).

5. The heat-insulating and pressure-resistant stainless steel seamless pipe according to claim 4, characterized in that: A vertical plate (5) longitudinally connected to the support plate (41) is fixed between the spaced deformable plates (42).

6. The heat-insulating and pressure-resistant stainless steel seamless pipe according to claim 1, characterized in that: The thermal insulation layer (3) comprises a polyurethane foam layer (31) and a glass wool layer (32) which are adjacently arranged.

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