Sliding heat preservation supporting device of large-diameter collecting tube

Abstract

The utility model relates to a sliding heat preservation supporting device of a large-diameter collecting tube, which comprises a heat insulation component, a supporting component and two guide rail plates, and the two guide rail plates are horizontally, oppositely and fixedly arranged; the supporting assembly is installed on the two guide rail plates and connected with the two guide rail plates in a horizontal sliding mode. The heat insulation assembly is fixedly installed on the supporting assembly. The utility model has the beneficial effects that the structure is simple, the bearing capacity is strong, the construction is convenient, the production and construction period is shortened, the economic benefit is greatly improved, and the problem of thermal displacement generated by the stress of the high-temperature collecting tube with a larger diameter is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of manifold support equipment, in particular to a sliding heat-insulating support device for a large-diameter manifold. Background Art

[0002] At present, the steam superheater of large-scale styrene plant (600,000 tons and above) usually has 4 large diameter manifolds, made of 304 and 8811 materials. The inlet manifold is made of 304, the medium temperature is about 580℃~680℃, the length is about 15m~20m, and the thermal displacement of the last support point is about 15cm~30cm; the outlet manifold is made of 8811, the medium temperature is about 880℃~980℃, the length is about 15m~20m, and the thermal displacement of the last support point is about 15cm~30cm. The steam superheater is the core equipment in the styrene plant, and the tube bundle system including the manifold is the core of the steam superheater.

[0003] There is a fixed end between the steam superheater manifold and the dehydrogenation zone pipeline, and the thermal expansion and thermal displacement generated by the heat are transmitted to both ends. In addition to its own large weight, the manifold support also needs to bear the weight of the radiation furnace tubes connected to the lower part. The weight of each manifold plus half of the downward pull it bears exceeds 50 tons. While bearing a large vertical force, there is also a certain radial thrust and a large thermal displacement caused by the heating of the manifold. If the various insulation supports of the manifold do not have sufficient strength and friction, the fixing effect of the fixed end may fail, the thermal displacement may be reversely transmitted, and the actual thermal stress generated in the dehydrogenation zone will be inconsistent with the design, the expansion joint will fail, and even the device will be forced to stop. Utility Model Content

[0004] The utility model provides a sliding heat-insulating support device for a large-diameter collecting pipe, aiming to solve the problems in the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A sliding thermal insulation support device for a large-diameter collecting pipe comprises a thermal insulation component, a support component and two guide rails, wherein the two guide rails are arranged horizontally and fixedly relative to each other; the support component is installed on the two guide rails and is respectively connected to the two guide rails in a horizontal sliding manner; the thermal insulation component is fixedly installed on the support component.

[0007] The beneficial effects of the utility model are as follows: during operation, the heat insulation component is sleeved outside the collecting pipe, and the device supports the collecting pipe at room temperature; when the temperature rises, the collecting pipe produces thermal expansion, and the thermal expansion includes radial expansion and axial expansion of the collecting pipe. The thermal expansion causes the entire device to produce thermal displacement on the two guide rails.

[0008] The utility model has the advantages of simple structure, strong bearing capacity, convenient construction, saving production and construction period, greatly improving economic benefits, and solving the problem of thermal displacement caused by stress of high-temperature collecting pipes with larger diameters.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the support assembly includes a base plate and a vertical plate, the base plate is horizontally mounted on the two guide rails and is horizontally slidably connected to the two guide rails respectively; the vertical plate is vertically fixedly mounted on the base plate, and the thermal insulation assembly is fixedly mounted on the vertical plate.

[0011] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. The base plate and the vertical plate form a supporting assembly. The base plate is horizontally slidably connected to the two guide rails. The vertical plate connects the base plate and the insulation assembly and supports the insulation assembly, which is easy to assemble.

[0012] Furthermore, the bottom plate is horizontally slidably connected to the two guide rail plates respectively through two hydraulic wheel trolleys.

[0013] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The two hydraulic wheel trolleys are used to convert the sliding friction between the two sides of the bottom plate and the two guide rails into rolling friction, thereby reducing friction.

[0014] Furthermore, the upper end of the vertical plate is in an arc-shaped structure that matches the outer shape of the thermal insulation component.

[0015] The beneficial effect of adopting the above further solution is that the shape and structure of the vertical plate are reasonably designed, which matches the shape of the thermal insulation component and has better assembly stability.

[0016] Furthermore, reinforcing plates are relatively vertically fixedly installed on both sides of the vertical plate.

[0017] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and the strength of the vertical plate is enhanced by two reinforcing plates, thereby increasing the strength of the entire support assembly and extending its service life.

[0018] Furthermore, the thermal insulation assembly includes a thermal insulation pipe clamp and a plurality of thermal insulation blocks, wherein the thermal insulation pipe clamp is fixedly mounted on the support assembly; the plurality of thermal insulation blocks are evenly spaced and distributed on the inner edge of the thermal insulation pipe clamp along the circumference of the thermal insulation pipe clamp.

[0019] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. Multiple insulation blocks form a circular ring outside the collecting pipe, and multiple insulation blocks are fixed by insulation pipe clamps, which is convenient for assembly. In addition, the insulation pipe clamps and insulation blocks form double insulation, and the insulation effect is better.

[0020] Furthermore, the plurality of thermal insulation blocks are arc-shaped blocks respectively.

[0021] The beneficial effect of adopting the above further solution is that the shape of the heat insulation block is reasonably designed, can better match the shape of the manifold, and has a better heat insulation effect.

[0022] Furthermore, the sizes of the plurality of thermal insulation blocks are consistent or inconsistent.

[0023] The beneficial effect of adopting the above further solution is that the sizes of the multiple insulation blocks are reasonably set, which is convenient for assembly.

[0024] Furthermore, the heat-insulating pipe clamp comprises two clamp bodies, which are arranged opposite to each other and have two ends connected respectively; one of the clamp bodies is fixedly mounted on the supporting assembly.

[0025] The beneficial effects of adopting the above further solution are simple structure, reasonable design, two clamps forming a ring to hold a plurality of insulation blocks, and easy assembly.

[0026] Furthermore, two ends of the two clamps are respectively relatively fixedly connected with fixing plates, and the two relatively distributed fixing plates are connected by bolts.

[0027] The beneficial effect of adopting the above further solution is that the two ends of the two clamps are easy to disassemble and assemble, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 for Figure 1 Sectional view along AA direction;

[0030] Figure 3 for Figure 1 Cross-sectional view along the BB axis.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Insulation pipe clamp; 2. Vertical plate; 3. Reinforcement plate; 4. Bottom plate; 5. Guide rail plate; 6. Liquid wheel trolley; 7. Insulation block; 8. Fixing plate; 9. Bolts. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0037] Example 1

[0038] like Figures 1 to 3 As shown, this embodiment provides a sliding thermal insulation support device for a large diameter collecting pipe, including a thermal insulation component, a support component and two guide rails 5, wherein the two guide rails 5 are horizontally relatively fixedly arranged; the support component is installed on the two guide rails 5 and is horizontally slidably connected to the two guide rails 5 respectively; the thermal insulation component is fixedly installed on the support component.

[0039] During operation, the thermal insulation assembly is sleeved outside the manifold, and the equipment supports the manifold at room temperature; when the temperature rises, the manifold undergoes thermal expansion, which includes radial expansion and axial expansion of the manifold. The thermal expansion causes thermal displacement of the entire equipment on the two guide rails.

[0040] This embodiment has a simple structure, strong bearing capacity, convenient construction, saves production and construction period, greatly improves economic benefits, and solves the thermal displacement problem caused by stress of high-temperature manifolds with larger diameters.

[0041] Example 2

[0042] On the basis of Example 1, in this embodiment, the supporting assembly includes a base plate 4 and a vertical plate 2, the base plate 4 is horizontally mounted on the two guide rail plates 5, and is horizontally slidably connected to the two guide rail plates 5 respectively; the vertical plate 2 is vertically fixedly mounted on the base plate 4, and the thermal insulation assembly is fixedly mounted on the vertical plate 2.

[0043] This solution has a simple structure and a reasonable design. The base plate 4 and the vertical plate 2 form a supporting assembly. The base plate 4 is horizontally slidably connected to two guide rail plates 5. The vertical plate 2 connects the base plate 4 and the insulation assembly and supports the insulation assembly, which is easy to assemble.

[0044] Preferably, in this embodiment, the bottom plate 4 is preferably a rectangular plate structure, and two sides of the bottom surface thereof are respectively connected to two guide rail plates 5 in a horizontal sliding manner.

[0045] Preferably, in this embodiment, the vertical plate 2 is preferably a flat plate structure.

[0046] Example 3

[0047] On the basis of Example 2, in this embodiment, the bottom plate 4 is horizontally slidably connected to the two guide rail plates 5 through two hydraulic wheel trolleys 6 respectively.

[0048] The solution has a simple structure and a reasonable design. The two hydraulic wheel trolleys 6 are used to convert the sliding friction between the two sides of the bottom plate 4 and the two guide rail plates 5 into rolling friction, thereby reducing the friction force.

[0049] Preferably, in this embodiment, the two hydraulic wheel trolleys 6 are respectively installed on both sides of the bottom surface of the bottom plate 4, and the lower ends thereof extend into the two guide rail plates 5 respectively, and are respectively connected to the two guide rail plates 5 in a horizontal sliding manner.

[0050] Example 4

[0051] On the basis of any one of Embodiments 2 to 3, in this embodiment, the upper end of the vertical plate 2 is in an arc-shaped structure that matches the outer shape of the thermal insulation component.

[0052] The shape and structure of the vertical plate 2 are reasonably designed, and they match the shape of the thermal insulation component, so the assembly stability is better.

[0053] Example 5

[0054] On the basis of any one of Embodiments 2 to 4, in this embodiment, reinforcing plates 3 are relatively vertically fixedly installed on both sides of the vertical plate 2 .

[0055] This solution has a simple structure and a reasonable design. The strength of the vertical plate 2 is enhanced by two reinforcing plates 3, thereby increasing the strength of the entire supporting assembly and extending its service life.

[0056] Preferably, in this embodiment, the two reinforcing plates 3 are preferably long strip-shaped plate structures, which are vertically and relatively fixedly installed on both sides of the vertical plate 2.

[0057] Alternatively, reinforcing ribs may be fixedly installed on the surfaces of both sides of the vertical plate 2 to further increase the strength of the entire vertical plate 2 .

[0058] Example 6

[0059] On the basis of the above embodiments, in this embodiment, the thermal insulation assembly includes a thermal insulation pipe clamp 1 and a plurality of thermal insulation blocks 7, and the thermal insulation pipe clamp 1 is fixedly mounted on the support assembly; the plurality of thermal insulation blocks 7 are evenly spaced along the circumference of the thermal insulation pipe clamp 1 on the inner edge of the thermal insulation pipe clamp 1.

[0060] This solution has a simple structure and a reasonable design. Multiple insulation blocks 7 form a circular ring outside the collecting pipe, and multiple insulation blocks 7 are fixed by the insulation pipe clamp 1, which is easy to assemble. In addition, the insulation pipe clamp 1 and the insulation blocks 7 form double insulation, and the insulation effect is better.

[0061] Example 7

[0062] On the basis of Example 6, in this embodiment, the plurality of thermal insulation blocks 7 are arc-shaped blocks respectively.

[0063] The shape of the heat-insulating block 7 is reasonably designed, and can better match the shape of the manifold, so the heat-insulating effect is better.

[0064] During assembly, multiple insulation blocks 7 form a complete annular structure, the outer sides of which are respectively fitted with the inner walls of the insulation pipe clamp 1, and the inner sides of which are respectively fitted with the outer walls of the collecting pipes. The pre-tightening force of the bolts 9 of the insulation pipe clamp 1 makes the insulation blocks 7 in close contact with the outer walls of the collecting pipes, thereby providing insulation and limiting effects on the collecting pipes.

[0065] Example 8

[0066] Based on any one of Embodiments 6 to 7, in this embodiment, the sizes of the plurality of thermal insulation blocks 7 are consistent or inconsistent.

[0067] The sizes of the plurality of heat-insulating blocks 7 are reasonably set, and assembly is convenient.

[0068] Based on the above solution, when the sizes of the multiple insulation blocks 7 are consistent, processing is convenient; when the sizes of the multiple insulation blocks 7 are inconsistent, processing is inconvenient.

[0069] In addition, corresponding ends of two adjacent heat-insulating blocks 7 are fitted together.

[0070] Example 9

[0071] On the basis of Example 8, in this embodiment, the thermal insulation pipe clamp 1 includes two clamp bodies, which are arranged opposite to each other and have two ends connected respectively; one of the clamp bodies is fixedly mounted on the supporting assembly.

[0072] This solution has a simple structure and a reasonable design. The two clamps form a ring to hold a plurality of heat insulation blocks 7, and the assembly is convenient.

[0073] Preferably, in this embodiment, one of the clamping bodies is fixedly mounted on the upper end of the vertical plate 2, and the upper end of the vertical plate 2 is arc-shaped and fits with the outer wall of the corresponding clamping body.

[0074] Alternatively, the upper end of the vertical plate 2 may also adopt a flat plate structure, and both sides of the upper end thereof are respectively fixedly connected to corresponding clamping bodies.

[0075] Example 10

[0076] On the basis of Example 9, in this embodiment, two ends of the two clamps are respectively relatively fixedly connected with fixing plates 8 , and the two relatively distributed fixing plates 8 are connected by bolts 9 .

[0077] The two ends of the two clamps are easy to disassemble and assemble, saving time and effort.

[0078] Based on the above solution, the fixing plates 8 at both ends of each clamp body are respectively formed integrally with the clamp body.

[0079] The working principle of the utility model is as follows:

[0080] During operation, the thermal insulation assembly is sleeved outside the manifold, and the equipment supports the manifold at room temperature; when the temperature rises, the manifold undergoes thermal expansion, which includes radial expansion and axial expansion of the manifold. The thermal expansion causes thermal displacement of the entire equipment on the two guide rails.

[0081] Compared with the prior art balance hammer support, the utility model reduces the deadweight of the support system by about 20 tons, thereby reducing the bearing capacity of the steam superheater steel structure, which is beneficial to the optimized design of the steel structure and is also conducive to the optimization of the civil engineering foundation.

[0082] The traditional counterweight needs to be adjusted after starting, and the relationship between the steel structure and the counterweight hoisting line needs to be considered in the design; the utility model has no hoisting line, and there is no need to consider the relationship between the steel structure and the counterweight hoisting line. After starting, the thermal displacement of the collecting pipe can be naturally extended to the free end by the sliding support without manual adjustment.

[0083] The traditional counterweight support is expensive and difficult to construct. For the furnace steel structure, a separate layer of steel structure needs to be designed as the suspension beam of the counterweight, which increases the weight of the furnace steel structure by about 30 tons. The utility model has a low cost and is easy to construct, without adding any additional steel structure.

[0084] The utility model provides a sliding heat-insulating support type for a large-diameter manifold to solve the problem of thermal displacement caused by stress of a high-temperature manifold with a larger diameter.

[0085] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0086] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sliding heat-insulating support device for a large-diameter manifold, characterized in that: It comprises a heat insulation component, a support component and two guide rails (5), wherein the two guide rails (5) are relatively fixedly arranged horizontally; the support component is mounted on the two guide rails (5) and is respectively connected to the two guide rails (5) in a horizontal sliding manner; and the heat insulation component is fixedly mounted on the support component.

2. The sliding heat-insulating support device for a large-diameter manifold according to claim 1, characterized in that: The support assembly comprises a base plate (4) and a vertical plate (2); the base plate (4) is horizontally mounted on the two guide rail plates (5) and is respectively horizontally slidably connected to the two guide rail plates (5); the vertical plate (2) is vertically fixedly mounted on the base plate (4); and the heat insulation assembly is fixedly mounted on the vertical plate (2).

3. The sliding heat-insulating support device for a large-diameter manifold according to claim 2, characterized in that: The bottom plate (4) is horizontally slidably connected to the two guide rail plates (5) respectively via two hydraulic wheel trolleys (6).

4. The sliding heat-insulating support device for a large-diameter manifold according to claim 2, characterized in that: The upper end of the vertical plate (2) is in an arc-shaped structure matching the outer shape of the thermal insulation component.

5. The sliding heat-insulating support device for a large-diameter manifold according to claim 2, characterized in that: Reinforcement plates (3) are relatively vertically fixedly mounted on both sides of the vertical plate (2).

6. The sliding heat-insulating support device for a large-diameter manifold according to any one of claims 1 to 5, characterized in that: The thermal insulation assembly comprises a thermal insulation pipe clamp (1) and a plurality of thermal insulation blocks (7); the thermal insulation pipe clamp (1) is fixedly mounted on the support assembly; the plurality of thermal insulation blocks (7) are evenly spaced and distributed on the inner edge of the thermal insulation pipe clamp (1) along the circumference of the thermal insulation pipe clamp (1).

7. The sliding heat-insulating support device for a large-diameter manifold according to claim 6, characterized in that: The plurality of heat insulation blocks (7) are arc-shaped blocks respectively.

8. The sliding heat-insulating support device for a large-diameter manifold according to claim 6, characterized in that: The sizes of the plurality of thermal insulation blocks (7) are consistent or inconsistent.

9. The sliding heat-insulating support device for a large-diameter manifold according to claim 6, characterized in that: The heat-insulating pipe clamp (1) comprises two clamp bodies, which are arranged opposite to each other and have two ends connected respectively; one of the clamp bodies is fixedly mounted on the supporting assembly.

10. The sliding heat-insulating support device for a large-diameter manifold according to claim 9, characterized in that: Two ends of the two clamping bodies are respectively relatively fixedly connected with fixing plates (8), and the two relatively distributed fixing plates (8) are connected via bolts (9).

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