CN204114371U - Directly buried type heat supply pipeline - Google Patents
Directly buried type heat supply pipeline Download PDFInfo
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- CN204114371U CN204114371U CN201420575962.5U CN201420575962U CN204114371U CN 204114371 U CN204114371 U CN 204114371U CN 201420575962 U CN201420575962 U CN 201420575962U CN 204114371 U CN204114371 U CN 204114371U
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- pipe
- heat supply
- supply pipeline
- sleeve pipe
- type heat
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Abstract
The utility model discloses a kind of directly buried type heat supply pipeline, comprise core pipe and be set in the sleeve pipe of described core pipe, also thermal insulation layer is distributed with between described core pipe and sleeve pipe, it is characterized in that this plurality of annular rigid connector sets gradually along the length direction of described heat supply pipeline also through a plurality of annular rigid connector seal welding between described core pipe and sleeve pipe.Further, the core pipe be distributed between adjacent two annular rigid connectors includes ripple compensation section, and be distributed on the sleeve outer wall between adjacent two annular rigid connectors and be also connected with more than one humidity discharging pipe, described humidity discharging pipe be distributed between these adjacent two annular rigid connectors and between described core pipe and sleeve pipe sealed chamber and be communicated with.The utility model sound construction, is beneficial to maintainer and finds out rapidly fault point on heat supply pipeline, reduce repair and maintenance difficulty, cost-saving.
Description
Technical field
The utility model relates to a kind of heat supply pipeline, particularly relates to a kind of novel directly buried type heat supply pipeline.
Background technique
At present, the industry that the centralized heating project in city and large and medium-sized enterprise use, the pipeline mostly direct-burried underground of life heating equipment, i.e. so-called directly buried type heat supply pipeline.The structure of tradition directly buried type heat supply pipeline: inside has one for managing (also known as core pipe) in defeated heat, and the thermal insulation layer be made up of thermal insulating material outside interior pipe, is provided with sleeve pipe outside thermal insulation layer.Relative position in this pipeline between pipe and sleeve pipe is controlled by the thermal insulation layer of centre, and due to the effect of gravity, thermal insulation layer can damage because of pressure.For this reason, industry has developed the mode arranging supporting element between interior pipe and sleeve pipe, such as, adopts the spoke-type fixed support 4 ' shown in Fig. 1, makes to be able to relative fixing between core pipe 2 with sleeve pipe 1, avoid the damage of thermal insulation layer 3.But adopt this structure, interior pipe can all be communicated with the chamber between sleeve pipe, if leak source appears in the regional area on interior pipe or outer tube, then need to overhaul whole pipeline, thus need at substantial time and human resources, with high costs, very inconvenient.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of structural stability, is easy to the directly buried type heat supply pipeline of repair and maintenance.
For achieving the above object, the utility model provides following technological scheme:
A kind of directly buried type heat supply pipeline, comprise core pipe and be set in the sleeve pipe of described core pipe, also thermal insulation layer is distributed with between described core pipe and sleeve pipe, and, also through a plurality of annular rigid connector seal welding between described core pipe and sleeve pipe, this plurality of annular rigid connector sets gradually along the length direction of described heat supply pipeline.
Further, the core pipe be distributed between adjacent two annular rigid connectors includes ripple compensation section.
Further, be distributed on the sleeve outer wall between adjacent two annular rigid connectors and be also connected with more than one humidity discharging pipe, described humidity discharging pipe be distributed between these adjacent two annular rigid connectors and between described core pipe and sleeve pipe sealed chamber and be communicated with.
Further, described sleeve pipe and core pipe are coaxially arranged.
Further, described thermal insulation layer comprises the glass fiber material layer be coated on described core tube wall.
Further, gap is left between described thermal insulation layer and described internal surface of sleeve pipe.
Further, described annular rigid connector comprises doughnut-shaped steel plate, the internal and external circumferential edge of described doughnut-shaped steel plate respectively with described core tube wall and internal surface of sleeve pipe seal welding.
Further, described doughnut-shaped steel plate is also fixedly connected with described core tube wall and/or internal surface of sleeve pipe through symmetrical plural number reinforcement gusset.
Compared with prior art, advantage of the present utility model comprises: by adopting some annular rigid connectors as the fixed support between sleeve pipe and core pipe, on the one hand can the relative position of stability contorting sleeve pipe and core pipe, prevent thermal insulation layer impaired, the chamber partitions between sleeve pipe and core pipe can be isolated on the other hand, when leak source appears in the core pipe of wherein a certain section or sleeve pipe, maintainer can find out rapidly, very convenient, repair and maintenance cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing directly buried type heat supply pipeline;
Fig. 2 is the lateral cross section structural representation of a kind of directly buried type heat supply pipeline of the utility model one exemplary embodiments;
Fig. 3 be the heat supply pipeline of directly buried type shown in Fig. 2 along B-B to cross section structure schematic diagram;
Fig. 4 is the linkage structure schematic diagram of a kind of doughnut-shaped steel plate of the utility model one exemplary embodiments and core pipe.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.The example of these preferred implementations illustrates in the accompanying drawings.Shown in accompanying drawing and the mode of execution of the present utility model described with reference to the accompanying drawings be only exemplary, and the utility model is not limited to these mode of executions.
At this, also it should be noted that, in order to avoid the utility model fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related structure of scheme of the present utility model and/or treatment step, and eliminate other details little with the utility model relation.
Referring to shown in Fig. 3-Fig. 4 is an exemplary embodiments of the present utility model, this directly buried type heat supply pipeline comprises core pipe 2 and is set in the sleeve pipe 1 of described core pipe, thermal insulation layer 3 is also distributed with between described core pipe and sleeve pipe, and, also through a plurality of annular rigid connector seal welding between described core pipe and sleeve pipe, this a plurality of annular rigid connector sets gradually along the length direction of described heat supply pipeline, and described sleeve pipe and core pipe are coaxially arranged.
Further, the core pipe be distributed between adjacent two annular rigid connectors includes ripple compensation section, to compensate core pipe after passing into or removing high temperature fluid, the deformation quantity produced vertically because expanding with heat and contract with cold effect, avoids vertically relative displacement occurring between core pipe and sleeve pipe and causes any one in core pipe, sleeve pipe, annular rigid connector impaired.
Further, be distributed on the sleeve outer wall between adjacent two annular rigid connectors and be also connected with more than one humidity discharging pipe 5, described humidity discharging pipe be distributed between these adjacent two annular rigid connectors and between described core pipe and sleeve pipe sealed chamber and be communicated with.When described directly buried type heat supply pipeline is embedded in underground, humidity discharging pipe is exposed to outside ground.By these humidity discharging pipes, can by the Stress control between core pipe and sleeve pipe in safety range, and when being passed into high temperature fluid in core pipe, will by being present between core pipe and sleeve pipe, particularly be present in the water evaporates in thermal insulation layer and the water vapour produced is discharged fast, and, when there is leak source in core pipe, high temperature fluid can be made outwards can to lead off from humidity discharging pipe, both the safety of heat supply pipeline had been ensured, also the section occurring to leak can be indicated in real time, same, the leak source on sleeve pipe also can be made to be found out in time.
Further, described thermal insulation layer comprises one or more layers glass fiber material layer be coated on described core tube wall.Further, between described thermal insulation layer and described internal surface of sleeve pipe, also leave gap, be beneficial to gas circulation.
Further, described annular rigid connector comprises doughnut-shaped steel plate 4, the internal and external circumferential edge of described doughnut-shaped steel plate respectively with described core tube wall and internal surface of sleeve pipe seal welding, so can not cause on the basis of any damage core pipe, sleeve pipe, make can remain solid and reliable being tightly connected between core pipe and sleeve pipe.
Preferably, refer to Fig. 4, described doughnut-shaped steel plate is also strengthened gusset 6 through symmetrical plural number and is fixedly connected with described core tube wall or internal surface of sleeve pipe.
In a word, by previous designs, the structure of directly buried type heat supply pipeline can be made more firm, and be beneficial to maintainer and find out rapidly fault point on heat supply pipeline, reduce repair and maintenance difficulty, cost-saving.
Finally also it should be noted that, in this specification, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Claims (8)
1. a directly buried type heat supply pipeline, comprise core pipe and be set in the sleeve pipe of described core pipe, also thermal insulation layer is distributed with between described core pipe and sleeve pipe, it is characterized in that this plurality of annular rigid connector sets gradually along the length direction of described heat supply pipeline also through a plurality of annular rigid connector seal welding between described core pipe and sleeve pipe.
2. directly buried type heat supply pipeline according to claim 1, is characterized in that, the core pipe be distributed between adjacent two annular rigid connectors includes ripple compensation section.
3. directly buried type heat supply pipeline according to claim 1, it is characterized in that, be distributed on the sleeve outer wall between adjacent two annular rigid connectors and be also connected with more than one humidity discharging pipe, described humidity discharging pipe be distributed between these adjacent two annular rigid connectors and between described core pipe and sleeve pipe sealed chamber and be communicated with.
4. the directly buried type heat supply pipeline according to any one of claim 1-3, is characterized in that, described sleeve pipe and core pipe are coaxially arranged.
5. directly buried type heat supply pipeline according to claim 1, is characterized in that, described thermal insulation layer comprises the glass fiber material layer be coated on described core tube wall.
6. directly buried type heat supply pipeline according to claim 5, is characterized in that, leaves gap between described thermal insulation layer and described internal surface of sleeve pipe.
7. directly buried type heat supply pipeline according to claim 1, is characterized in that, described annular rigid connector comprises doughnut-shaped steel plate, the internal and external circumferential edge of described doughnut-shaped steel plate respectively with described core tube wall and internal surface of sleeve pipe seal welding.
8. directly buried type heat supply pipeline according to claim 7, is characterized in that, described doughnut-shaped steel plate is also strengthened gusset through symmetrical plural number and is fixedly connected with described core tube wall and/or internal surface of sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575962.5U CN204114371U (en) | 2014-10-08 | 2014-10-08 | Directly buried type heat supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575962.5U CN204114371U (en) | 2014-10-08 | 2014-10-08 | Directly buried type heat supply pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114371U true CN204114371U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420575962.5U Active CN204114371U (en) | 2014-10-08 | 2014-10-08 | Directly buried type heat supply pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN204114371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677971A (en) * | 2020-05-11 | 2020-09-18 | 济南市市政工程设计研究院（集团）有限责任公司 | Direct-buried steam main pipe moisture-removing system |
| CN113883352A (en) * | 2018-08-23 | 2022-01-04 | 山西理工红日节能服务有限公司 | Prefabricated heat preservation double-deck return bend |
-
2014
- 2014-10-08 CN CN201420575962.5U patent/CN204114371U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883352A (en) * | 2018-08-23 | 2022-01-04 | 山西理工红日节能服务有限公司 | Prefabricated heat preservation double-deck return bend |
| CN113883352B (en) * | 2018-08-23 | 2023-11-21 | 山西理工红日节能服务有限公司 | Prefabricated heat-insulating double-layer bent pipe |
| CN111677971A (en) * | 2020-05-11 | 2020-09-18 | 济南市市政工程设计研究院（集团）有限责任公司 | Direct-buried steam main pipe moisture-removing system |
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| GR01 | Patent grant |