CN103912762A - Directly-buried steam pipe with internal rolling structure - Google Patents
Directly-buried steam pipe with internal rolling structure Download PDFInfo
- Publication number
- CN103912762A CN103912762A CN201410123221.8A CN201410123221A CN103912762A CN 103912762 A CN103912762 A CN 103912762A CN 201410123221 A CN201410123221 A CN 201410123221A CN 103912762 A CN103912762 A CN 103912762A
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- CN
- China
- Prior art keywords
- pipe
- plate
- insulation layer
- working pipe
- buried steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a directly-buried steam pipe, in particular to a directly-buried steam pipe with an internal rolling structure. The directly-buried steam pipe comprises a working pipe, an external protecting pipe, a heat insulation layer and a bracket group, the bracket group is arranged between the working pipe and the external protecting pipe, and the heat insulation layer is located between the working pipe and the external protecting pipe. During operation of the pipe, the internal rolling bracket structure, the heat insulation layer and the external pipe displace integrally, relative movement of the working pipe and the heat insulation layer is guaranteed, an internal air layer can protect the directly-buried steam pipe against damage, integrity of the heat insulation layer is maintained, heat loss of the directly-buried steam pipe is reduced, external surface temperature of the external protecting steel pipe is decreased, an erosion resistant coating is protected, and service life of the directly-buried steam pipe is prolonged.
Description
Technical field
The present invention relates to a kind of direct-buried steam pipeline, specifically relate to a kind of direct-buried steam pipeline with interior rolling structure.
Background technique
At present, steam line inner supporting structure is various informative, but that most of structure stand and working pipe are fixed as one is motionless, and working pipe is expanded with heat and contract with cold, and support is telescopic moving together with working pipe.And thermal insulation layer is directly wrapped in working pipe, be integrated with working pipe, it expands with heat and contract with cold when working pipe, make that heat insulation layer structure is imperfect, the disconnection of thermal insulating material or gathering, the thermal loss that has increased pipeline, has reduced heat insulation effect, and the hull-skin temperature of pipeline is increased, destroy the anticorrosive coat of external protective steel tube, reduced the working life of pipeline.
Summary of the invention
In view of the problem of prior art existence, the object of the invention is to provide a kind of direct-buried steam pipeline with interior rolling structure, under the state of the medium High Temperature High Pressure that steam line is carried, can produce radially or axial displacement, the direct-buried steam pipeline that this kind has an interior rolling structure can be good at guaranteeing complete, the compound action that reduces heat waste of thermal insulation layer, guarantees the safe operation of steam pipe line.
To achieve these goals, the technical solution adopted in the present invention is the direct-buried steam pipeline with interior rolling structure, and it comprises: working pipe, outer pillar, thermal insulation layer and support group; Described support group is arranged between working pipe and outer pillar, and thermal insulation layer, between working pipe and outer pillar, is characterized in that: described support group, thermal insulation layer and outer pillar are fixed as an entirety, between described thermal insulation layer and working pipe, are provided with gap; Described support group is configured to by some, and described support comprises: flange plate, gusset plate, scroll wheel, ring flat-plate and fixed plate; Flange plate is set in working pipe, and described flange plate is connected with gusset plate; Gusset plate is connected with ring flat-plate, and ring flat-plate is provided with upper and lower two groups of scroll wheels, is respectively rolling wheels and lower rolling wheels, and described ring flat-plate is connected with fixed plate, and fixed plate is connected with outer pillar; Described upper rolling wheels contact with outer pillar, and described lower rolling wheels contact with working pipe.
Described support is that line contacts with working pipe and outer pillar.
Between described flange plate and working pipe, be provided with gap.
Described upper and lower two groups of scroll wheels comprise respectively some scroll wheels, and described scroll wheel is evenly crisscross arranged on ring flat-plate.
The invention has the advantages that:
1, this structural type is in the time of conduit running; interior rolling support structure, thermal insulation layer and outer pillar global displacement; guarantee that working pipe and thermal insulation layer are relative movement; interior air layer will protect it can be not destroyed; the integrity that keeps thermal insulation layer, has reduced pipeline heat loss, and the hull-skin temperature of external protective steel tube reduces; protect anticorrosive coat, extended pipeline working life.
2, support is realized with contacting by scroll wheel of working pipe and outer pillar, is the rolling friction of line contact, and coefficient of rolling friction is less in existing friction factor, has effectively reduced the loss of heat.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional view of the present invention;
Fig. 3 is sectional view of the present invention;
In figure: 1, working pipe, 2, flange plate, 3, lower scroll wheel, 4, gusset plate, 5, upper scroll wheel, 6, ring flat-plate, 7, fixed plate, 8, outer pillar.
Embodiment
The direct-buried steam pipeline in order further to understand this with interior rolling structure, is described as follows below in conjunction with accompanying drawing:
It comprises: working pipe 1, thermal insulation layer, outer pillar 8 and support group; Described support group is arranged between working pipe 1 and outer pillar 8, and described support group comprises some supports, and described support comprises: flange plate 2, gusset plate 4, scroll wheel, ring flat-plate 6 and fixed plate 7; Described flange plate 2 is two, and uniform screw hole on flange plate 2 connects flange plate 2 with round steel; Flange plate 2 is set in working pipe 1, between two flange plate 2, is provided with gusset plate 4; Between the entirety that flange plate 2 and gusset plate 4 form and working pipe 1, be provided with gap; Described gusset plate 4 is connected with ring flat-plate 5, and ring flat-plate 5 is provided with upper and lower two groups of scroll wheels, is respectively uniform staggered being fixed on ring flat-plate 6 of scroll wheel 4 and 3, two groups of scroll wheels of lower scroll wheel, disperses force bearing point; Described ring flat-plate 6 is connected with fixed plate 7, and entirety and the 8 inwall welding of outer pillar are formed a fixed block by described fixed plate 7; Described upper scroll wheel 5 contacts with outer pillar 8, and described lower scroll wheel 3 contacts with working pipe 1.
Claims (4)
1. the direct-buried steam pipeline with interior rolling structure, it comprises: working pipe, outer pillar, thermal insulation layer and support group; Described support group is arranged between working pipe and outer pillar, and thermal insulation layer, between working pipe and outer pillar, is characterized in that: described support group, thermal insulation layer and outer pillar are fixed as an entirety, between described thermal insulation layer and working pipe, are provided with gap; Described support group is configured to by some, and described support comprises: flange plate, gusset plate, scroll wheel, ring flat-plate and fixed plate; Flange plate is set in working pipe, and described flange plate is connected with gusset plate; Gusset plate is connected with ring flat-plate, and ring flat-plate is provided with upper and lower two groups of scroll wheels, is respectively rolling wheels and lower rolling wheels, and described ring flat-plate is connected with fixed plate, and fixed plate is connected with outer pillar; Described upper rolling wheels contact with outer pillar, and described lower rolling wheels contact with working pipe.
2. the direct-buried steam pipeline with interior rolling structure according to claim 1, is characterized in that: described support is that line contacts with working pipe and outer pillar.
3. the direct-buried steam pipeline with interior rolling structure according to claim 1, is characterized in that: between described flange plate and working pipe, be provided with gap.
4. the direct-buried steam pipeline with interior rolling structure according to claim 1, is characterized in that: described upper and lower two groups of scroll wheels comprise respectively some scroll wheels, and described scroll wheel is evenly crisscross arranged on ring flat-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123221.8A CN103912762B (en) | 2014-03-31 | 2014-03-31 | There is the direct-buried steam pipeline of interior rolling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123221.8A CN103912762B (en) | 2014-03-31 | 2014-03-31 | There is the direct-buried steam pipeline of interior rolling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103912762A true CN103912762A (en) | 2014-07-09 |
| CN103912762B CN103912762B (en) | 2015-12-09 |
Family
ID=51038651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410123221.8A Active CN103912762B (en) | 2014-03-31 | 2014-03-31 | There is the direct-buried steam pipeline of interior rolling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103912762B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020541A (en) * | 2015-08-13 | 2015-11-04 | 上海核工程研究设计院 | Slidable heat preservation layer for pipeline |
| CN108591624A (en) * | 2018-07-20 | 2018-09-28 | 大连科华热力管道有限公司 | A kind of tube-in-tube holder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU481748A1 (en) * | 1972-12-25 | 1975-08-25 | Self-propelled chassis for moving inside the pipe | |
| DD117273A1 (en) * | 1974-11-12 | 1976-01-05 | ||
| JPH11302723A (en) * | 1998-04-23 | 1999-11-02 | Nippon Steel Corp | Skid supporting beam and its production |
| CN2692467Y (en) * | 2004-03-26 | 2005-04-13 | 康凤雷 | Internal rolling type multilayer heat insulating high temperature steam buried prefabricated heat insulating pipe |
| CN203757193U (en) * | 2014-03-31 | 2014-08-06 | 大连科华热力管道有限公司 | Directly-buried steam pipeline with internal rolling structure |
-
2014
- 2014-03-31 CN CN201410123221.8A patent/CN103912762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU481748A1 (en) * | 1972-12-25 | 1975-08-25 | Self-propelled chassis for moving inside the pipe | |
| DD117273A1 (en) * | 1974-11-12 | 1976-01-05 | ||
| JPH11302723A (en) * | 1998-04-23 | 1999-11-02 | Nippon Steel Corp | Skid supporting beam and its production |
| CN2692467Y (en) * | 2004-03-26 | 2005-04-13 | 康凤雷 | Internal rolling type multilayer heat insulating high temperature steam buried prefabricated heat insulating pipe |
| CN203757193U (en) * | 2014-03-31 | 2014-08-06 | 大连科华热力管道有限公司 | Directly-buried steam pipeline with internal rolling structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020541A (en) * | 2015-08-13 | 2015-11-04 | 上海核工程研究设计院 | Slidable heat preservation layer for pipeline |
| CN108591624A (en) * | 2018-07-20 | 2018-09-28 | 大连科华热力管道有限公司 | A kind of tube-in-tube holder |
| CN108591624B (en) * | 2018-07-20 | 2024-03-12 | 大连科华热力管道有限公司 | Pipe-in-pipe support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103912762B (en) | 2015-12-09 |
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