CN222504012U - Hot water pipeline structure for direct buried laying and pipe jacking laying connection - Google Patents
Hot water pipeline structure for direct buried laying and pipe jacking laying connection Download PDFInfo
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- CN222504012U CN222504012U CN202421172523.XU CN202421172523U CN222504012U CN 222504012 U CN222504012 U CN 222504012U CN 202421172523 U CN202421172523 U CN 202421172523U CN 222504012 U CN222504012 U CN 222504012U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 238000009933 burial Methods 0.000 claims 10
- 238000013022 venting Methods 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 23
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
本实用新型属于直埋热水管道供热技术领域，具体为一种用于直埋敷设与顶管敷设连接的热水管道结构。其应用于井室处，包括直埋敷设的供水管道组件、以及并排设置的直埋敷设的回水管道组件；其中，直埋敷设的供水管道组件包括顺次连接的直埋供水管道、旋转补偿结构与顶管敷设供水管道，直埋供水管道与顶管敷设供水管道的一端均穿入至井室内，且直埋供水管道高于顶管敷设供水管道；直埋敷设的回水管道组件包括顺次连接的直埋回水管道、旋转补偿结构与顶管敷设回水管道，直埋回水管道与顶管敷设回水管道的一端均穿入至井室内，且直埋回水管道高于顶管敷设回水管道。该结构减少了施工完顶管井回填的工程量及投资，降低了施工难度，提高了施工安全性。
The utility model belongs to the technical field of direct-buried hot water pipe heating, and is specifically a hot water pipe structure for direct-buried laying and top-pipe laying connection. It is applied to the well chamber, including a directly buried water supply pipe assembly, and a directly buried return water pipe assembly arranged side by side; wherein the directly buried water supply pipe assembly includes a directly buried water supply pipe, a rotating compensation structure and a top-pipe laying water supply pipe connected in sequence, one end of the directly buried water supply pipe and the top-pipe laying water supply pipe are both inserted into the well chamber, and the directly buried water supply pipe is higher than the top-pipe laying water supply pipe; the directly buried return water pipe assembly includes a directly buried return water pipe, a rotating compensation structure and a top-pipe laying return water pipe connected in sequence, one end of the directly buried return water pipe and the top-pipe laying return water pipe are both inserted into the well chamber, and the directly buried return water pipe is higher than the top-pipe laying return water pipe. This structure reduces the engineering volume and investment of backfilling the top-pipe well after construction, reduces the construction difficulty, and improves the construction safety.
Description
Technical Field
The utility model belongs to the technical field of direct-buried hot water pipeline heat supply, and particularly relates to a hot water pipeline structure for direct-buried laying and pipe jacking laying connection.
Background
With the development of society, central heating is being greatly advanced as a heating mode for urban residents in winter, and a hot water direct-buried laying mode is widely applied. In the pipe network directly buried by hot water, the characteristics of high temperature and high pressure lead the pipe network directly buried by hot water to need a certain compensation measure to solve the problem of stress generated by heat expansion and cold contraction of the pipeline.
Square compensation or a combination of a sleeve compensator is commonly used in hot water direct-buried pipelines at present. In practical engineering, local nodes needing special treatment, such as sections where the local cannot be excavated (road, railway and other sections are traversed) and the pipe jacking is needed to be laid and needs compensation, often occur. The square compensation floor space is large, the compensation amount is small, the crossing distance is limited, and the arrangement of the pipelines can be difficult for a road section with a long crossing distance. If a sleeve compensator is adopted, the blind plate force and the friction force are large, and leakage points are easy to cause.
In the prior art, the patent with the issued publication number of CN213809445U provides a thermal pipeline structure for direct-buried laying and pipe jacking laying connection, and the thermal pipeline structure adds a compound pull rod type corrugated compensator on a vertical pipe between a pipe jacking and direct-buried arrangement to carry out pipeline thermal compensation, but because the compound pull rod type corrugated compensator is longer in length, the working depth of the pipe jacking and the depth of a pipe jacking well are increased under the condition of ensuring the earthing thickness of a direct-buried pipeline, and the construction difficulty and the investment are increased by times when the depth is increased by 1m for an underground inspection well.
Based on the above, the utility model provides a novel hot water pipeline structure for direct buried laying and pipe jacking laying connection, so as to overcome the defects.
Disclosure of utility model
The utility model aims to provide a hot water pipeline structure for direct-buried laying and pipe jacking laying connection, which is characterized in that a direct-buried pipeline is connected with a pipe jacking laying pipeline through a rotary compensation structure, and a pipe jacking well chamber is fully utilized as an inspection well of the rotary compensation structure, so that the compensation quantity of the pipeline is increased, the pipe jacking crossing distance of a special node is increased, the working depth of the pipe jacking and the depth of the pipe jacking well are reduced, the backfilling engineering quantity and investment of the pipe jacking well are reduced after construction, the construction difficulty is reduced, and the construction safety is improved.
The hot water pipeline structure for direct-buried laying and pipe jacking laying connection is applied to a well chamber and comprises a direct-buried laid water supply pipeline assembly and a direct-buried water return pipeline assembly which are arranged side by side;
The direct-buried water supply pipeline assembly comprises a direct-buried water supply pipeline, a rotation compensation structure and a pipe jacking water supply pipeline which are sequentially connected, wherein one ends of the direct-buried water supply pipeline and the pipe jacking water supply pipeline penetrate into the well chamber, the direct-buried water supply pipeline is higher than the pipe jacking water supply pipeline, and a gas discharge pipeline is connected to the high point of the direct-buried water supply pipeline in the well chamber;
The directly buried water return pipeline assembly comprises a directly buried water return pipeline, a rotation compensation structure and a pipe jacking laying water return pipeline which are sequentially connected, wherein the directly buried water return pipeline and one end of the pipe jacking laying water return pipeline penetrate into the well chamber, the directly buried water return pipeline is higher than the pipe jacking laying water return pipeline, and a gas discharge pipeline is connected to the high-point position of the directly buried water return pipeline in the well chamber.
Further, a drain pipe nipple and a drain pipe connected with the drain pipe nipple are respectively connected to the lower points of the pipe-jacking water supply pipeline and the pipe-jacking water return pipeline in the well chamber.
Furthermore, the drain short pipe is perpendicular to the pipe jacking water supply pipeline and the pipe jacking water return pipeline, and a drain valve is arranged on the drain pipeline.
Further, the drain valve is a welded ball valve.
Furthermore, a water collecting pit is arranged at one side of the bottom of the well chamber.
Further, the high points of the direct-buried water supply pipeline and the direct-buried water return pipeline in the well chamber are respectively connected with a gas discharge pipeline, and the gas discharge pipeline extends into the water collecting pit.
Further, a bleed valve is mounted on the bleed conduit.
Further, the air release valve is a welded ball valve.
Further, the rotary compensation structure comprises a prefabricated heat-preserving hot water pipeline, two rotary compensators and four prefabricated heat-preserving elbows, wherein the direct-buried water supply pipeline is connected with the pipe jacking laying water supply pipeline, and the direct-buried water return pipeline is connected with the pipe jacking laying water return pipeline through the prefabricated heat-preserving elbows, the rotary compensators and the prefabricated heat-preserving hot water pipeline to form an arch structure.
Furthermore, one ends of the direct-buried water supply pipeline and the direct-buried water return pipeline penetrate into the well chamber through the flexible through-wall water stop sleeve.
Compared with the prior art, the utility model has the beneficial effects that:
According to the hot water pipeline structure for direct-buried laying and pipe-jacking laying connection, the direct-buried pipeline is connected with the pipe-jacking laying pipeline through the rotary compensation structure, and the pipe-jacking well chamber is fully utilized as an inspection well of the rotary compensation structure, so that the compensation quantity of the pipeline is increased, the pipe-jacking crossing distance of a special node is increased, the working depth of the pipe jacking and the depth of the pipe-jacking well are reduced, the backfilling engineering quantity and investment of the pipe-jacking well after construction are reduced, the construction difficulty is reduced, and the construction safety is improved.
Meanwhile, compared with a square compensator and a sleeve compensator, the rotary compensation structure is adopted to perform pipeline thermal displacement compensation, so that the occupied area is saved, the blind plate force and friction force of the pipeline are reduced, the tightness of the pipeline is enhanced, the compensation quantity is increased, and the pipe jacking crossing distance of a special node is increased. Compared with the compound pull rod type corrugated compensator, the rotary compensation structure is adopted for compensation, so that the working depth of the jacking pipe and the depth of the jacking pipe well can be reduced, the investment of civil engineering is reduced, the construction difficulty is reduced, and the construction safety is improved.
In addition, the rotation compensation structure has good self-sealing performance, and reduces pipeline leakage points, thereby saving operation and maintenance cost.
Drawings
For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a plan view of a hot water pipeline structure for direct buried laying and pipe jacking laying connection of the present utility model;
FIG. 2 is a cross-sectional view of a hot water pipe structure for direct buried laying and pipe jacking laying connection according to the present utility model;
Wherein, the water supply pipeline assembly 1, the direct-buried water supply pipeline 10, the rotation compensation structure 11, the prefabricated heat-preserving hot water pipeline 111, the rotation compensator 112, the prefabricated heat-preserving elbow 113, the pipe-jacking water supply pipeline 12, the direct-buried water return pipeline assembly 2, the direct-buried water return pipeline 20, the pipe-jacking water return pipeline 21, the well chamber 3, the concrete pipe 30 for pipe jacking, the flexible through-wall water stop sleeve 4, the water discharge short pipe 5, the water discharge pipeline 6, the water discharge valve 7, the water collecting pit 8, the air discharge pipeline 9 and the air discharge valve 90 are directly buried.
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 fall within the scope of the utility model.
The utility model is discussed in detail below in conjunction with fig. 1-2 and the specific embodiments:
As shown in fig. 1-2, the present utility model provides a hot water pipeline structure for direct buried laying and pipe jacking laying connection, which is applied to a well chamber 3, and in this embodiment, the well chamber 3 is a reinforced concrete well chamber. The hot water pipeline structure comprises a water supply pipeline assembly 1 which is directly buried and laid, and a water return pipeline assembly 2 which is directly buried and laid and arranged side by side;
The directly buried water supply pipeline assembly 1 comprises a directly buried water supply pipeline 10, a rotation compensation structure 11 and a pipe jacking water supply pipeline 12 which are sequentially connected, wherein one ends of the directly buried water supply pipeline 10 and the pipe jacking water supply pipeline 12 penetrate into the well chamber 3, and the directly buried water supply pipeline 10 is higher than the pipe jacking water supply pipeline 12 because of the height difference between the directly buried water supply pipeline 10 and the pipe jacking water supply pipeline 12, the directly buried water supply pipeline 10 enters into the well chamber 3, is connected with the pipe jacking water supply pipeline 12 in a downward turning manner through the rotation compensation structure 11, and is connected with a gas release pipeline 9 at the high point of the directly buried water supply pipeline 10 in the well chamber 3 to play a role of gas release;
the water return pipeline assembly 2 that directly buries is including the direct-burried water return pipeline 20 that connects in order, rotatory compensation structure 11 and pipe-jacking laying water return pipeline 21, direct-burried water return pipeline 20 with pipe-jacking laying water return pipeline 21's one end all penetrates to in the well chamber 3, because there is the difference in height between direct-burried water return pipeline 20 and pipe-jacking laying water return pipeline 21, just direct-burried water return pipeline 20 is higher than pipe-jacking laying water return pipeline 21, this direct-burried water return pipeline 20 enters into in the well chamber 3 through rotatory compensation structure 11 turn down connect pipe-jacking laying water return pipeline 21 in the well chamber 3 the high point department of direct-burried water return pipeline 20 is connected with gassing pipeline 9, plays the exhaust gas effect.
In this embodiment, a top pipe concrete pipe 30 is provided at the wall of the well 3 corresponding to the top pipe water supply pipeline 12 and the top pipe water return pipeline 21, and the top pipe water supply pipeline 12 and the top pipe water return pipeline 21 are installed in the top pipe concrete pipe 30. The concrete pipe 30 for the jacking pipe is a common pipeline material in jacking pipe construction, is made of concrete, has higher strength and durability, can bear pressure and load in the jacking pipe construction process, and is convenient to construct and low in cost.
According to the hot water pipeline structure for direct buried laying and pipe jacking laying connection, the direct buried pipeline is connected with the pipe jacking laying pipeline through the rotary compensation structure 11, and the pipe jacking well chamber is fully utilized as an inspection well of the rotary compensation structure, so that the compensation quantity of the pipeline is increased, the pipe jacking crossing distance of a special node is increased, the working depth of the pipe jacking and the depth of the pipe jacking well are reduced, the backfilling engineering quantity and investment of the pipe jacking well after construction are reduced, the construction difficulty is reduced, and the construction safety is improved.
Meanwhile, compared with a square compensator and a sleeve compensator, the rotary compensation structure is adopted to perform pipeline thermal displacement compensation, so that the occupied area is saved, the blind plate force and friction force of the pipeline are reduced, the tightness of the pipeline is enhanced, the compensation quantity is increased, and the pipe jacking crossing distance of a special node is increased. Compared with the compound pull rod type corrugated compensator, the rotary compensation structure is adopted for compensation, so that the working depth of the jacking pipe and the depth of the jacking pipe well can be reduced, the investment of civil engineering is reduced, the construction difficulty is reduced, and the construction safety is improved.
In addition, the rotation compensation structure has good self-sealing performance, and reduces pipeline leakage points, thereby saving operation and maintenance cost.
Further, a drain pipe 5 and a drain pipe 6 connected to the drain pipe 5 are connected to the pipe-jacking water supply pipe 12 and the pipe-jacking water return pipe 21 in the well 3, respectively, and the drain pipe 6 is extended to a nearby drain sub-well, and is guided to the drain sub-well through the drain pipe 5 and the drain pipe 6, thereby performing a drainage function. Specifically, the drain pipe spool 5 is perpendicular to the pipe-jacking water supply pipeline 12 and the pipe-jacking water return pipeline 21, and a drain valve 7 is installed on the drain pipe 6 for controlling discharge. In this embodiment, the drain valve 7 is a welded ball valve.
In this embodiment, the drain pipe 5 and the drain pipe 6 are prefabricated directly buried heat insulation pipes, which are pipes prefabricated in factories and subjected to heat insulation treatment, and are widely applied to the transportation and distribution systems of urban central heating, cooling and hot oil. The pipeline is mainly formed by tightly combining a working steel pipe for conveying media, a polyurethane rigid foam plastic heat-insulating layer and a high-density polyethylene outer sleeve. The prefabricated directly buried heat insulation pipeline has the advantages of high heat insulation performance, effective reduction of heat loss and reduction of energy consumption. Meanwhile, it has good waterproof and corrosion resistance, can stably operate for a long time under severe environmental conditions. In addition, the construction process of the prefabricated directly-buried heat-insulating pipeline is simple and quick, the construction period can be greatly shortened, and the construction cost is reduced.
Further, a sump 8 is provided at one side of the bottom of the well 3. Correspondingly, the high points of the directly buried water supply pipeline 10 and the directly buried water return pipeline 20 in the well chamber 3 are respectively connected with a gas discharge pipeline 9, and the gas discharge pipeline 9 extends into the water collecting pit 8, so that gas in the pipelines can be discharged in time. A bleed valve 90 is mounted on said bleed duct 9. In this embodiment, the bleed valve 90 is a welded ball valve, and the welded ball valve is a ball valve adopting a welded connection mode, and compared with other types of ball valves, the welded ball valve has the advantages of firm connection, good sealing performance, strong corrosion resistance, convenient installation, low maintenance cost and the like. In this embodiment, the air release pipeline 9 is a prefabricated directly buried heat insulation pipeline.
Further, the rotation compensation structure 11 comprises a prefabricated heat-preserving hot water pipeline 111, two rotation compensators 112 and four prefabricated heat-preserving elbows 113, and the direct-buried water supply pipeline 10 is connected with the pipe-jacking water supply pipeline 12, the direct-buried water return pipeline 20 is connected with the pipe-jacking water return pipeline 21 through the prefabricated heat-preserving elbows 113, the rotation compensators 112 and the prefabricated heat-preserving hot water pipeline 111 to form an arch structure.
The prefabricated heat-insulating hot water pipe 111 is a pipe having heat-insulating property for transporting hot water. Specifically, the heat-insulating pipe can be composed of a working steel pipe, a heat-insulating layer and an outer protective pipe, wherein the heat-insulating layer is made of polyurethane foam and other materials, so that heat loss can be effectively reduced, and the heat energy utilization rate is improved. The adoption of the prefabricated heat-insulating hot water pipeline 111 has the advantages of good heat-insulating performance, safety, reliability, convenience in construction, long service life and the like.
Specifically, two ends of the rotation compensator 112 may be provided with corresponding prefabricated heat-preserving elbows 113 to form rotation compensators, and the two sets of rotation compensators are connected through the prefabricated heat-preserving hot water pipeline 111 to form a rotation compensation structure 11 of an arch structure, which is not limited in specific form, and may be shown in fig. 1 and 2. Preferably, the rotation compensation structure in the directly buried water supply pipeline assembly 1 is a U-shaped arch structure in a vertical section as shown in fig. 1 and 2, and the rotation compensation structure in the directly buried water return pipeline assembly 2 is a U-shaped arch structure in a horizontal section as shown in fig. 1 and 2, so that space stagger of the rotation compensation structure in the directly buried water supply pipeline assembly 1 and the rotation compensation structure in the directly buried water return pipeline assembly 2 is realized, and the rotation compensation structures of the two pipelines are uniformly distributed in the well chamber 3, thereby saving the installation space. Meanwhile, the rotary compensator 112 has good self-sealing performance, and pipeline leakage points are reduced, so that operation and maintenance costs are saved. Meanwhile, the compensation amount of the rotation compensator 112 is large, the arm length is short in vertical arrangement, and the height is small.
Further, one end of the direct-buried water return pipeline 20 of the direct-buried water supply pipeline 10 penetrates into the well chamber 3 through the flexible through-wall water stop sleeve 4. The flexible wall-penetrating water stop sleeve 4 is a waterproof sealing device for the wall penetrating of a pipeline, can be made of metal or plastic, has certain flexibility and elasticity, can adapt to vibration and deformation of the pipeline, can effectively prevent water from leaking from a gap between the pipeline and the wall, and plays roles of waterproof sealing and buffering and damping. In this embodiment, the flexible through-wall water stop sleeve 4 needs to be poured into the concrete wall at one time, so as to meet the thermal elongation requirement of the directly buried pipeline.
The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421172523.XU CN222504012U (en) | 2024-05-27 | 2024-05-27 | Hot water pipeline structure for direct buried laying and pipe jacking laying connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421172523.XU CN222504012U (en) | 2024-05-27 | 2024-05-27 | Hot water pipeline structure for direct buried laying and pipe jacking laying connection |
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| CN222504012U true CN222504012U (en) | 2025-02-18 |
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| CN202421172523.XU Active CN222504012U (en) | 2024-05-27 | 2024-05-27 | Hot water pipeline structure for direct buried laying and pipe jacking laying connection |
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| CN (1) | CN222504012U (en) |
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- 2024-05-27 CN CN202421172523.XU patent/CN222504012U/en active Active
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