Novel direct-buried steam pipeline fixing buttress double-moisture-removal structure

Abstract

The utility model provides a novel direct burial steam pipeline fixed buttress double moisture removal structure which comprises a steam pipeline, a plurality of moisture removal pipes and a small well chamber, the steam pipeline is buried under the ground, the steam pipeline comprises a first core pipe, a first heat preservation layer and a first outer sleeve, the first outer sleeve is sleeved outside the first core pipe, and the first core pipe is sleeved outside the first heat preservation layer. A heat preservation cavity is formed between the inner wall of the first outer sleeve and the outer wall of the first core pipe, and the heat preservation cavity is filled with the first heat preservation layer; the lower ends of the moisture removal pipes are welded with the first outer sleeve and are communicated with the heat preservation cavity; the small well chamber is buried under the ground and is positioned above the steam pipeline; the upper ends of the multiple moisture discharging pipes extend into the small well chamber so that moisture accumulated in the heat preservation cavity can be discharged into the small well chamber. Therefore, the whole moisture removal pipe is hidden under the ground, it can be guaranteed that steam in the heat preservation layer of the steam pipeline is discharged, influence on ground traffic is avoided, meanwhile, it is guaranteed that the upper portion of the ground is attractive, and man-made damage and potential safety hazards are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat pipeline dehumidification devices, and more specifically, to a novel double dehumidification structure for fixed supports of directly buried steam pipelines. Background Technology

[0002] During the fabrication, transportation, and installation of steam pipelines, insulation materials may absorb or introduce moisture. When the pipeline is running, the high temperature inside causes this moisture to evaporate and accumulate within the insulation material. If this moisture remains in the insulation layer for an extended period, it will reduce the insulation performance of the material and increase heat loss. Furthermore, if the moisture in the insulation material is not released, under steam pressure, a "burst" phenomenon may occur, where the insulation layer ruptures, steam erupts, and causes injury to personnel and equipment.

[0003] In existing technologies, a venting pipe connected to the insulation layer is typically installed on the outside of steam pipelines to expel moisture from the insulation material, preventing moisture accumulation, ensuring the thermal conductivity of the insulation material reaches the design value, maintaining good insulation performance, and reducing energy waste. Simultaneously, it prevents moisture erosion that could damage the insulation and anti-corrosion layers, avoids accelerated corrosion within the steel casing, and extends the pipeline's service life. Furthermore, the venting pipe can serve as a signal for pipeline leaks and other faults. During normal operation, the venting volume is relatively stable. If the venting volume suddenly increases or a large amount of steam is discharged, it may indicate a leak or other fault in the working pipe. Workers can then roughly determine the location of the leak, facilitating rapid location and repair, shortening troubleshooting time, and reducing economic losses. Secondly, during steam pipeline operation, the internal pressure fluctuates due to factors such as temperature changes. The venting pipe can, to some extent, balance the pressure inside and outside the pipeline, preventing damage to the pipeline structure due to excessive pressure differences, and making the pipeline system more stable.

[0004] Existing direct-buried steam pipelines typically have exhaust pipes that extend above ground level. This not only affects aesthetics and traffic flow but also poses risks of vandalism and safety hazards. Utility Model Content

[0005] The main purpose of this utility model is to provide a new type of fixed support structure for direct-buried steam pipelines with double drainage, so as to solve the problem that the drainage pipes of direct-buried steam pipelines in the prior art usually extend out of the ground. This not only affects the aesthetics and traffic, but also poses the problem of vandalism and safety hazards.

[0006] To achieve the above objectives, this utility model provides a novel double-dampening structure for a fixed support pier of a directly buried steam pipeline, comprising: a steam pipeline buried below ground, the steam pipeline including a first core pipe, a first insulation layer, and a first outer sleeve, the first outer sleeve being fitted over the first core pipe, and an insulation cavity being formed between the inner wall of the first outer sleeve and the outer wall of the first core pipe, the first insulation layer being filled within the insulation cavity; multiple damping pipes, the lower ends of the multiple damping pipes being welded to the first outer sleeve and communicating with the insulation cavity; and a small well chamber buried below ground and located above the steam pipeline; wherein the upper ends of the multiple damping pipes extend into the small well chamber to discharge the moisture accumulated in the insulation cavity into the small well chamber.

[0007] Furthermore, the steam pipe also includes: a connecting bracket, which is disposed inside the insulation cavity, wherein the first end of the connecting bracket is fixedly connected to the outer wall of the first core tube, and the second end of the connecting bracket is fixedly connected to the inner wall of the first outer sleeve to fix the first core tube and the first outer sleeve to each other.

[0008] Furthermore, the steam pipe also includes: a reinforcing pipe, which is fitted outside the first outer sleeve and opposite to the second end of the connecting bracket. The two ends of the reinforcing pipe are welded to the outer wall of the first outer sleeve to form a receiving cavity between the reinforcing pipe and the first outer sleeve. The receiving cavity is filled with high-temperature glass wool or polyurethane foam.

[0009] Furthermore, the first insulation layer is made of aluminum silicate blanket.

[0010] Furthermore, the dehumidification pipe includes: a second core tube, the lower end of which extends through the first outer sleeve into the insulation cavity; a second insulation layer, which is wrapped around the outer wall of the second core tube; and a second outer sleeve, which is fitted over the second insulation layer.

[0011] Furthermore, the second insulation layer is made of aluminum silicate blanket.

[0012] Furthermore, the bottom slab and side walls of the small well chamber are made of concrete, and a waterproof cover is installed at the upper end of the small well chamber.

[0013] Furthermore, a drainage pipe is installed at the bottom of the small well chamber.

[0014] Furthermore, multiple through holes are provided on the bottom plate of the small well chamber, and multiple drainage pipes extend into the small well chamber through the multiple through holes in a corresponding manner; the gap between the outer wall of the drainage pipe and the wall of the through hole is filled with waterproof sealing material.

[0015] This utility model discloses a novel fixed support structure for a directly buried steam pipeline with double moisture drainage. The structure includes a steam pipeline, multiple moisture drainage pipes, and a small well chamber. The steam pipeline is buried underground and comprises a first core pipe, a first insulation layer, and a first outer sleeve. The first outer sleeve is fitted over the first core pipe, and an insulation cavity is formed between the inner wall of the first outer sleeve and the outer wall of the first core pipe. The first insulation layer fills the insulation cavity. The lower ends of the multiple moisture drainage pipes are welded to the first outer sleeve and communicate with the insulation cavity. The small well chamber is buried underground and located above the steam pipeline. The upper ends of the multiple moisture drainage pipes extend into the small well chamber to discharge the moisture accumulated in the insulation cavity. This design conceals the entire moisture drainage system underground, ensuring the discharge of steam from the insulation layer of the steam pipeline, avoiding disruption to ground traffic, maintaining the aesthetics of the surface, and effectively preventing vandalism and safety hazards. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of a novel double-dampening structure for a fixed support pier of a direct-buried steam pipeline, which can be selected according to an embodiment of this utility model.

[0018] The above figures include the following reference numerals:

[0019] 10. Steam pipe; 11. First core pipe; 12. First insulation layer; 13. First outer sleeve; 14. Connecting bracket; 15. Reinforced pipe; 20. Drainage pipe; 21. Second core pipe; 22. Second insulation layer; 23. Second outer sleeve; 30. Small well chamber; 31. Waterproof cover plate; 32. Drainage pipe. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] This utility model discloses a novel direct-buried steam pipe fixed support double-dampening structure, comprising a steam pipe 10, multiple damping pipes 20, and a small well chamber 30. The steam pipe 10 is buried below ground and includes a first core pipe 11, a first insulation layer 12, and a first outer sleeve 13. The first outer sleeve 13 is fitted over the first core pipe 11, and an insulation cavity is formed between the inner wall of the first outer sleeve 13 and the outer wall of the first core pipe 11. The first insulation layer 12 is filled and disposed within the insulation cavity. The lower ends of the multiple damping pipes 20 are welded to the first outer sleeve 13 and communicate with the insulation cavity. The small well chamber 30 is buried below ground and located above the steam pipe 10. The upper ends of the multiple damping pipes 20 extend into the small well chamber 30 to discharge the moisture accumulated in the insulation cavity into the small well chamber 30. This allows the entire exhaust pipe 20 to be hidden below the ground, ensuring that the steam in the insulation layer of the steam pipe 10 is discharged, avoiding any impact on ground traffic, while also maintaining the aesthetics of the surface and effectively preventing vandalism and safety hazards.

[0022] In specific implementation, to ensure a secure connection between the first core tube 11 and the first outer sleeve 13, the steam pipe 10 also includes a connecting bracket 14. The connecting bracket 14 is disposed within the insulation cavity. The first end of the connecting bracket 14 is fixedly connected to the outer wall of the first core tube 11, and the second end of the connecting bracket 14 is fixedly connected to the inner wall of the first outer sleeve 13 to secure the first core tube 11 and the first outer sleeve 13 to each other. Optionally, the connecting bracket 14 can be arranged at a certain angle to the axial direction of the first core tube 11. The first insulation layer 12 is made of aluminum silicate blanket, which effectively prevents heat loss.

[0023] Furthermore, the connection between the first outer sleeve 13 and the connecting bracket 14 needs to bear the weight of the first core tube 11. To ensure the structural strength of the connection between the first outer sleeve 13 and the connecting bracket 14, the steam pipe 10 may optionally include a reinforcing pipe 15. The reinforcing pipe 15 is sleeved outside the first outer sleeve 13 and faces the second end of the connecting bracket 14. There is a certain gap between the inner wall of the reinforcing pipe 15 and the outer wall of the first outer sleeve 13. The two ends of the reinforcing pipe 15 are welded to the outer wall of the first outer sleeve 13, thereby forming a receiving cavity between the reinforcing pipe 15 and the first outer sleeve 13. The receiving cavity is filled with high-temperature glass wool or polyurethane foam. Optionally, the length of the reinforcing pipe 15 is 100mm.

[0024] Furthermore, the desiccant 20 includes a second core tube 21, a second insulation layer 22, and a second outer sleeve 23. The lower end of the second core tube 21 extends through the first outer sleeve 13 into the insulation cavity and communicates with it to expel moisture from the insulation cavity. The second insulation layer 22 is wrapped around the outer wall of the second core tube 21 to insulate it and prevent condensation from occurring as moisture flows upward along the second core tube 21. The second outer sleeve 23 is fitted over the second insulation layer 22 to protect it. Optionally, the second insulation layer 22 is made of aluminum silicate blanket.

[0025] Furthermore, the bottom plate and side walls of the small well chamber 30 are made of concrete. Multiple through holes are opened on the bottom plate of the small well chamber 30, and multiple drainage pipes 20 extend into the small well chamber 30 through the multiple through holes in a corresponding manner. The gap between the outer wall of the drainage pipe 20 and the hole wall of the through hole is filled with waterproof sealant to prevent rainwater from the road surface entering the small well chamber 30 and condensate formed by the moisture discharged from the drainage pipe 20 from seeping into the steam pipe 10 below.

[0026] The upper end of the small well chamber 30 is equipped with a waterproof cover plate 31 to prevent rainwater and ground debris from entering the small well chamber 30, while ensuring the flatness of the road surface; the bottom of the small well chamber 30 is equipped with a drain pipe 32, which can drain the rainwater entering the small well chamber 30 and the condensate formed by the moisture discharged from the dehumidification pipe 20.

[0027] In the specific construction of the novel double-dampening structure for fixed supports of directly buried steam pipelines according to this utility model embodiment, firstly, fixed supports are made for the steam pipeline 10. The first core pipe 11 is inserted into the first outer sleeve 13. A connecting bracket 14 is welded inside the insulation cavity. The gaps in the insulation cavity are filled with insulation materials such as aluminum silicate blankets and tightly sealed to form the first insulation layer 12. Both ends are sealed with waterproof sealing plates to prevent moisture from the soil from entering the first insulation layer 12. A 100mm long pipe is welded at the connection between the connecting bracket 14 and the first outer sleeve 13 to form a reinforcing pipe 15 for reinforcement. The gap between the reinforcing pipe 15 and the first outer sleeve 13 is filled with high-temperature glass wool or polyurethane foam, and both ends are sealed. Then, two desiccant pipes 20 are welded onto the steam pipe 10. The second core pipe 21 of the desiccant pipe 20 is inserted into the first outer sleeve 13 of the steam pipe 10. The gap between the second core pipe 21 and the second outer sleeve 23 of the desiccant pipe 20 is filled with insulation material such as aluminum silicate blanket and sealed tightly to form a second insulation layer 22. Both ends are sealed with waterproof sealing plates. Next, a small well chamber 30 is constructed above the steam pipe 10. The ground below the small well chamber 30 is compacted. The bottom plate and well wall of the small well chamber 30 are made of concrete. The gaps between the two desiccant pipes 20 and the through holes in the bottom plate are sealed with waterproof sealing filler. Finally, a waterproof cover plate 31 is installed at the wellhead of the small well chamber 30, and a drain pipe 32 is installed at the bottom of the well. After the above steps are completed, the construction of the novel direct-buried steam pipe fixed support double desiccant structure of this utility model can be realized.

[0028] This invention solves the problem of drainage pipes protruding above ground and affecting aesthetics and occupying above-ground space in existing technologies by leading the vent pipe 20 of the directly buried steam pipe 10 into a small underground well chamber 30. This also enhances the safety of the pipeline. The waterproof cover 31 effectively prevents surface water from leaking into the small well chamber 30, while the drainage pipe 32 at the bottom of the well further drains accumulated water. Furthermore, the waterproof sealing filler and compacted soil at the bottom of the well, along with the concrete structure of the well bottom and walls, further improve the waterproof performance and stability of the device. The reinforced welding of the steam pipe 10 also enhances the overall structural strength of the device. This invention has a simple structure, is easy to operate, and is highly practical, demonstrating significant technological advancement and practical value.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A new type of double-row moisture structure of a fixed pier of a direct-buried steam pipeline, characterized in that, The utility model relates to a steam pipeline (10) is buried below ground, the steam pipeline (10) includes first core pipe (11), first heat preservation layer (12) and first outer sleeve (13), the first outer sleeve (13) is set outside the first core pipe (11), the inner wall of first outer sleeve (13) and the outer wall between first core pipe (11) form heat preservation cavity, first heat preservation layer (12) fill the setting in heat preservation cavity, A plurality of moisture discharge pipes (20), the lower ends of the plurality of moisture discharge pipes (20) are welded to the first outer sleeve (13) and communicate with the heat preservation cavity; A small chamber (30) is buried below ground and located above the steam pipeline (10); Wherein, the upper ends of the plurality of moisture discharge pipes (20) extend into the small chamber (30) to discharge the moisture accumulated in the heat preservation cavity into the small chamber (30). The steam pipeline (10) further comprises:

2. The new type of fixed pier double-row moisture structure for directly buried steam pipelines according to claim 1, characterized in that, A connecting bracket (14) is arranged in the heat preservation cavity, the first end of the connecting bracket (14) is fixedly connected to the outer sidewall of the first core pipe (11), and the second end of the connecting bracket (14) is fixedly connected to the inner sidewall of the first outer sleeve (13) to fix the first core pipe (11) and the first outer sleeve (13) to each other. The steam pipeline (10) further comprises:

3. The new type of double-row moisture structure of the fixed pier of the directly buried steam pipeline according to claim 2, characterized in that, A reinforcing pipeline (15) is sleeved outside the first outer sleeve (13) and opposite to the second end of the connecting bracket (14), the two ends of the reinforcing pipeline (15) are welded to the outer sidewall of the first outer sleeve (13) to form an accommodation cavity between the reinforcing pipeline (15) and the first outer sleeve (13), and high-temperature glass wool or polyurethane foam is filled in the accommodation cavity. The first heat preservation layer (12) is made of aluminum silicate blanket.

4. The new type of fixed pier double-row moisture structure for directly buried steam pipelines according to claim 1, characterized in that, The moisture discharge pipe (20) comprises:

5. The new type of fixed pier double-row moisture structure for directly buried steam pipelines according to claim 1, characterized in that, A second core pipe (21) extends through the first outer sleeve (13) to the heat preservation cavity; A second heat preservation layer (22) is wrapped around the outer wall of the second core pipe (21); A second outer sleeve (23) is sleeved outside the second heat preservation layer (22). The second heat preservation layer (22) is made of aluminum silicate blanket.

6. The new type of double-row moisture structure of fixed pier of direct-buried steam pipeline according to claim 5, characterized in that, The bottom plate and the sidewall of the small chamber (30) are made of concrete pouring, and a waterproof cover plate (31) is arranged at the upper port of the small chamber (30).

7. The new type of fixed pier double-row moisture structure for directly buried steam pipelines according to claim 1, characterized in that, A drain pipe (32) is arranged at the bottom of the small chamber (30).

8. The new type of fixed pier double-row moisture structure for directly buried steam pipelines according to claim 1, characterized in that, A plurality of through holes are formed in the bottom plate of the small chamber (30), and the plurality of moisture discharge pipes (20) extend into the small chamber (30) through the plurality of through holes one by one; 9. The new type of fixed pier double-row moisture structure for directly buried steam pipelines according to claim 1, characterized in that, Wherein, the gap between the outer wall of the moisture discharge pipe (20) and the hole wall of the through hole is filled with waterproof sealing filler. ​

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