CN215172897U - A kind of outer protective pipe for heat pipeline - Google Patents
A kind of outer protective pipe for heat pipeline Download PDFInfo
- Publication number
- CN215172897U CN215172897U CN202121273246.8U CN202121273246U CN215172897U CN 215172897 U CN215172897 U CN 215172897U CN 202121273246 U CN202121273246 U CN 202121273246U CN 215172897 U CN215172897 U CN 215172897U
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- pipe
- wall
- insulation layer
- pillar
- outer protective
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Abstract
本实用新型涉及管道外护管技术领域，具体为一种用于热力管道的外护管，所述热力管道包括工作钢管以及包裹在所述工作钢管外侧的保温隔热层，且所述外护管套设在所述保温隔热层的外侧，所述外护管与保温隔热层之间还活动设置有限位导管，且所述外护管和限位导管之间设置有若干与外护管形状相适配的弧形抵接板，所述弧形抵接块与外护管的内壁之间还设置有若干弹簧。本实用新型通过利用弹簧的回复力将弧形抵接板紧密抵接在保温隔热层的外壁上，实现外护管对保温隔热层紧密约束的作用；并且在弹簧的弹性作用下可以适应工作钢管在传输高温气体时产生的热胀冷缩现象，适应性和安全性更高。
The utility model relates to the technical field of outer protection pipes of pipelines, in particular to an outer protection pipe used for thermal pipelines. The pipe is sleeved on the outer side of the thermal insulation layer, a limit conduit is also movably arranged between the outer protective pipe and the thermal insulation layer, and a number of external protective pipes are arranged between the outer protective pipe and the limit conduit. An arc-shaped abutting plate adapted to the shape of the tube is also provided with several springs between the arc-shaped abutting block and the inner wall of the outer protective tube. The utility model uses the restoring force of the spring to tightly abut the arc-shaped abutting plate on the outer wall of the thermal insulation layer, so as to realize the effect of the outer protective tube tightly constraining the thermal insulation layer; and under the elastic action of the spring, the utility model can adapt to the The thermal expansion and contraction caused by the working steel pipe during the transmission of high temperature gas has higher adaptability and safety.
Description
Technical Field
The utility model relates to a pipeline outer casing technical field specifically is an outer casing for heating power pipeline.
Background
In the fields of power generation, metallurgy, chemical industry, petroleum and the like, a thermal pipeline for conveying steam or other high-temperature media is composed of a working steel pipe, a heat-insulating layer and an outer protecting pipe. The working steel pipe is used for conveying steam or other high-temperature media, the heat-insulating layer is wrapped on the outer side of the working steel pipe and used for isolating and reducing heat loss, and the outer protective pipe is sleeved on the outer side of the heat-insulating layer and used for restraining the heat-insulating layer and preventing water from permeating into the heat-insulating layer.
In order to make the thermal insulation layer play multiple roles, multiple functional layers are generally required to be arranged on the thermal insulation layer, so that the smoothness of the outer surface of the thermal insulation layer is insufficient, and the flatness of the thermal insulation layer is affected.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a thermal power pipeline's outer pillar, can make the outer pillar closely retrain the thermal insulation layer, solved present and the thermal insulation layer between have the problem that the clearance leads to the outer pillar guard action to reduce.
In order to realize the above-mentioned purpose that can make the outer pillar carry out closely restraint to the thermal insulation layer, the utility model provides a following technical scheme: the utility model provides an outer pillar for heating power pipeline, heating power pipeline includes that work steel pipe and parcel are in the heat preservation insulating layer in the work steel pipe outside, just outer pillar cover is established the outside of heat preservation insulating layer, still the activity is provided with spacing pipe between outer pillar and the heat preservation insulating layer, just be provided with a plurality of arc butt joint boards with outer pillar shape looks adaptation between outer pillar and the spacing pipe, still be provided with a plurality of springs between the inner wall of arc butt joint board and outer pillar.
Optionally, two ends of the spring are fixedly connected with one side, far away from the limiting guide pipe, of the inner wall of the outer protection pipe and the arc abutting plate respectively, and the spring is always in a compressed state.
Optionally, the inner wall and the outer wall of the outer protecting pipe are coated with epoxy resin composite material layers.
Optionally, both ends of the outer protecting pipe are provided with sealing rings for plugging a gap between the outer protecting pipe and the working steel pipe.
Optionally, an air valve for an external vacuum machine to extract air in the outer protection pipe is arranged on the sealing ring.
Compared with the prior art, the utility model provides an outer pillar for heating power pipeline possesses following beneficial effect:
1. the utility model arranges the arc abutting plate between the heat-insulating layer and the inner wall of the outer protecting pipe, and arranges the spring between the arc abutting plate and the inner wall of the outer protecting pipe, thereby utilizing the restoring force of the spring to tightly abut the arc abutting plate on the outer wall of the heat-insulating layer, and realizing the effect that the outer protecting pipe tightly restrains the heat-insulating layer; the elastic force of the spring can adapt to the expansion and contraction phenomenon generated when the working steel pipe transmits high-temperature gas, and the adaptability and the safety are higher;
2. the utility model discloses a both ends at outer pillar set up the sealing washer and seal to outer pillar to set up the pneumatic valve on the sealing washer, make outside vacuum machine can pass through the air valve and extract the interior air of outer pillar, reduce the moisture of the interior air of outer pillar, thereby avoid the inside air of outer pillar to cause the erosion to the thermal insulation layer because of being heated liquefaction water droplet.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic structural view of the outer protecting pipe port of the present invention.
In the figure: 1. an outer protecting pipe; 2. working steel pipes; 3. a heat insulation layer; 4. a limiting catheter; 5. an arc abutting plate; 6. a spring; 7. a seal ring; 8. and (4) an air valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: an outer protecting pipe for a heat distribution pipeline, the heat distribution pipeline comprises a working steel pipe 2 and a heat preservation and insulation layer 3 wrapped outside the working steel pipe 2, the outer protecting pipe 1 is sleeved outside the heat insulating layer 3, the inner wall and the outer wall of the outer protecting pipe 1 are coated with epoxy resin composite material layers, the epoxy resin composite material layers protect the outer protecting pipe 1 from abrasion and external corrosion, a limiting conduit 4 is movably arranged between the outer protecting pipe 1 and the heat insulating layer 3, the limiting conduit 4 can be repeatedly used, the cost is saved, a plurality of arc abutting plates 5 matched with the outer protection pipe 1 in shape are arranged between the outer protection pipe 1 and the limiting guide pipe 4, a plurality of springs 6 are also arranged between the arc abutting plates 5 and the inner wall of the outer protection pipe 1, two ends of each spring 6 are fixedly connected with the inner wall of the outer protection pipe 1 and one side, far away from the limiting guide pipe 4, of the arc abutting plates 5 respectively, and the springs 6 are always in a compressed state;
the both ends of outer pillar 1 all are provided with and are used for carrying out the sealing washer 7 of shutoff to the clearance between outer pillar 1 and the work steel pipe 2, are provided with the pneumatic valve 8 that is used for outside vacuum machine extraction outer pillar 1 interior air on the sealing washer 7.
The working principle is as follows: during installation, the working steel pipe 2 and the heat-insulating layer 3 extend into the limiting guide pipe 4, then the limiting guide pipe 4 is pulled out of the outer protecting pipe 1, and at the moment, the arc abutting plate 5 is tightly abutted to the heat-insulating layer 3 under the action of the restoring force of the spring 6, so that the outer protecting pipe 1 is tightly restrained on the heat-insulating layer 3, and the protection of the outer protecting pipe 1 is improved; after the limiting guide pipe 4 is drawn out, the sealing ring 7 is fixedly connected with the two ends of the outer protecting pipe 1 so as to plug a gap between the outer protecting pipe 1 and the working steel pipe 2, air in the outer protecting pipe 1 is drawn out through the air valve 8 on the sealing ring 7 by using an external vacuum machine, moisture in the air in the outer protecting pipe 1 is reduced, and therefore the phenomenon that the air in the outer protecting pipe 1 is corroded to the heat-insulating layer 3 due to the fact that heated liquid is changed into water drops is avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an outer pillar for heating power pipeline, heating power pipeline includes work steel pipe (2) and parcel is in heat preservation insulating layer (3) in the work steel pipe (2) outside, just outer pillar (1) cover is established the outside of heat preservation insulating layer (3), its characterized in that: still the activity is provided with spacing pipe (4) between outer pillar (1) and thermal insulation layer (3), just be provided with between outer pillar (1) and spacing pipe (4) a plurality of arc butt joint board (5) with outer pillar (1) shape looks adaptation, still be provided with a plurality of springs (6) between the inner wall of arc butt joint board (5) and outer pillar (1).
2. An outer jacket for a thermal conduit as defined in claim 1, wherein: the two ends of the spring (6) are fixedly connected with one side, away from the limiting guide pipe (4), of the inner wall of the outer protective pipe (1) and the arc abutting plate (5) respectively, and the spring (6) is always in a compressed state.
3. An outer jacket for a thermal conduit as defined in claim 1, wherein: the inner wall and the outer wall of the outer protecting pipe (1) are coated with epoxy resin composite material layers.
4. An outer jacket for a thermal conduit as defined in claim 1, wherein: and sealing rings (7) used for plugging gaps between the outer protective pipe (1) and the working steel pipe (2) are arranged at two ends of the outer protective pipe (1).
5. An outer jacket for a thermal conduit as defined in claim 4, wherein: and an air valve (8) used for an external vacuum machine to extract air in the outer protective pipe (1) is arranged on the sealing ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121273246.8U CN215172897U (en) | 2021-06-08 | 2021-06-08 | A kind of outer protective pipe for heat pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121273246.8U CN215172897U (en) | 2021-06-08 | 2021-06-08 | A kind of outer protective pipe for heat pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172897U true CN215172897U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121273246.8U Expired - Fee Related CN215172897U (en) | 2021-06-08 | 2021-06-08 | A kind of outer protective pipe for heat pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792575A (en) * | 2023-08-22 | 2023-09-22 | 秦皇岛市牧热防腐保温工程有限公司 | Anti-corrosion heat-preservation direct-buried pipe |
-
2021
- 2021-06-08 CN CN202121273246.8U patent/CN215172897U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792575A (en) * | 2023-08-22 | 2023-09-22 | 秦皇岛市牧热防腐保温工程有限公司 | Anti-corrosion heat-preservation direct-buried pipe |
| CN116792575B (en) * | 2023-08-22 | 2023-10-20 | 秦皇岛市牧热防腐保温工程有限公司 | Anti-corrosion heat-preservation direct-buried pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |