CN204512807U - A kind of low-loss Direct-Buried Heating Pipeline fixed knot - Google Patents
A kind of low-loss Direct-Buried Heating Pipeline fixed knot Download PDFInfo
- Publication number
- CN204512807U CN204512807U CN201520209862.5U CN201520209862U CN204512807U CN 204512807 U CN204512807 U CN 204512807U CN 201520209862 U CN201520209862 U CN 201520209862U CN 204512807 U CN204512807 U CN 204512807U
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- CN
- China
- Prior art keywords
- steel tube
- external protective
- protective steel
- heat supply
- fixed knot
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of low-loss Direct-Buried Heating Pipeline fixed knot, comprise heat supply pipeline and be enclosed within the external protective steel tube A outside heat supply pipeline, described heat supply pipeline and external protective steel tube A are welded to connect by concentric reducer, thermal insulating material is filled with between described heat supply pipeline and external protective steel tube A, described external protective steel tube A is also provided with external protective steel tube B outward, described external protective steel tube B two ends are weldingly fixed on external protective steel tube A by doughnut-shaped steel plate, are filled with thermal insulating material between described external protective steel tube B and external protective steel tube A; The outer surface of described external protective steel tube B scribbles anticorrosive; The tie point of described concentric reducer and external protective steel tube A is between two panels doughnut-shaped steel plate.Operation heat loss of the present utility model is few, and Security is high, and working life extends.
Description
Technical field
The utility model relates to a kind of heat supply pipeline fixed knot, is specifically related to a kind of low-loss Direct-Buried Heating Pipeline fixed knot.
Background technique
Traditional fixed knot structure, is connected by CONCENTRIC REDUCER between external protective steel tube with heat supply pipeline, can produce heat bridge effect and cause external protective steel tube temperature around fixed knot to raise, cause scattering and disappearing of heat.In the pipe network of actual motion, the temperature of the external protective steel tube measured is up to 120 degrees Celsius, surrounding soil is heated, directly cause greening downright bad, meanwhile, high temperature makes the corrosion-resistant coating of external protective steel tube outer surface come off, there is corrosion, cause a large amount of losses of steam heat, time serious, also there will be the phenomenons such as run, drip, leak, have influence on the transport of the safety economy of steam.
Summary of the invention
The purpose of this utility model is: provide a kind of heat loss little, and the life-span is grown and the Direct-Buried Heating Pipeline fixed knot of use safety.
The utility model is achieved through the following technical solutions: a kind of low-loss Direct-Buried Heating Pipeline fixed knot, comprise heat supply pipeline and be enclosed within the external protective steel tube A outside heat supply pipeline, described heat supply pipeline and external protective steel tube A are welded to connect by concentric reducer, thermal insulating material is filled with between described heat supply pipeline and external protective steel tube A, described external protective steel tube A is also provided with external protective steel tube B outward, described external protective steel tube B two ends are weldingly fixed on external protective steel tube A by doughnut-shaped steel plate, are filled with thermal insulating material between described external protective steel tube B and external protective steel tube A; The outer surface of described external protective steel tube B scribbles anticorrosive; The tie point of described concentric reducer and external protective steel tube A is between two panels doughnut-shaped steel plate.
As further preferred version of the present utility model, described external protective steel tube A is not scribbled anticorrosive by the outer surface that external protective steel tube B covers.
As further preferred version of the present utility model, described external protective steel tube A is provided with air hole, and described air hole is between two panels doughnut-shaped steel plate.
As further preferred version of the present utility model, described anticorrosive is epoxy resin.
As further preferred version of the present utility model, described thermal insulating material is nanoporous aerogel felt, aluminium silicate wool needle punched blanket, the centrifugal super glass wool composite structure of high temperature.
The utility model has following beneficial effect:
Fixed knot of the present utility model, in traditional external protective steel tube structure, add one layer of heat preservation material and external protective steel tube again, outermost external protective steel tube temperature is reduced greatly, actual measurement temperature is 30 degrees centigrade only, have completely cut off the impact of heat bridge effect on corrosion-resistant coating, thus make the operation heat loss of pipe network few, Security is high, and working life extends.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of low-loss Direct-Buried Heating Pipeline fixed knot, comprise heat supply pipeline 1 and be enclosed within the external protective steel tube A3 outside heat supply pipeline 1, described heat supply pipeline 1 is welded to connect by concentric reducer 8 with external protective steel tube A3, thermal insulating material 2 is filled with between described heat supply pipeline 1 and external protective steel tube A3, described external protective steel tube A3 is also provided with external protective steel tube B5 outward, described external protective steel tube B5 two ends are weldingly fixed on external protective steel tube A3 by doughnut-shaped steel plate 7, are filled with thermal insulating material 2 between described external protective steel tube B5 and external protective steel tube A3; The outer surface of described external protective steel tube B5 scribbles anticorrosive 9; The tie point of described concentric reducer 8 and external protective steel tube A3 is between two panels doughnut-shaped steel plate 7.Described external protective steel tube A3 is not scribbled anticorrosive 9 by the outer surface that external protective steel tube B5 covers.Described external protective steel tube A3 is provided with air hole 6, and described air hole 6 is between two panels doughnut-shaped steel plate 7.Described anticorrosive 9 is epoxy resin.Described thermal insulating material 2 is nanoporous aerogel felt, aluminium silicate wool needle punched blanket, the centrifugal super glass wool composite structure of high temperature.
Claims (5)
1. a low-loss Direct-Buried Heating Pipeline fixed knot, comprise heat supply pipeline (1) and be enclosed within heat supply pipeline (1) external protective steel tube A(3 outward), described heat supply pipeline (1) and external protective steel tube A(3) be welded to connect by concentric reducer (8), described heat supply pipeline (1) and external protective steel tube A(3) between be filled with thermal insulating material (2), it is characterized in that: described external protective steel tube A(3) be also provided with external protective steel tube B(5 outward), described external protective steel tube B(5) two ends are weldingly fixed on external protective steel tube A(3 by doughnut-shaped steel plate (7)) on, described external protective steel tube B(5) and external protective steel tube A(3) between be filled with thermal insulating material (2), described external protective steel tube B(5) outer surface scribble anticorrosive (9), described concentric reducer (8) and external protective steel tube A(3) tie point be positioned between two panels doughnut-shaped steel plate (7).
2. a kind of low-loss Direct-Buried Heating Pipeline fixed knot according to claim 1, is characterized in that: described external protective steel tube A(3) not by external protective steel tube B(5) outer surface that covers scribbles anticorrosive (9).
3. a kind of low-loss Direct-Buried Heating Pipeline fixed knot according to claim 1, is characterized in that: described external protective steel tube A(3) be provided with air hole (6), described air hole (6) is positioned between two panels doughnut-shaped steel plate (7).
4. a kind of low-loss Direct-Buried Heating Pipeline fixed knot according to claim 1 and 2, is characterized in that: described anticorrosive (9) is epoxy resin.
5. a kind of low-loss Direct-Buried Heating Pipeline fixed knot according to claim 1, is characterized in that: described thermal insulating material (2) is nanoporous aerogel felt, the centrifugal super glass wool composite structure of aluminium silicate wool needle punched blanket, high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209862.5U CN204512807U (en) | 2015-04-09 | 2015-04-09 | A kind of low-loss Direct-Buried Heating Pipeline fixed knot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209862.5U CN204512807U (en) | 2015-04-09 | 2015-04-09 | A kind of low-loss Direct-Buried Heating Pipeline fixed knot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512807U true CN204512807U (en) | 2015-07-29 |
Family
ID=53710785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520209862.5U Expired - Fee Related CN204512807U (en) | 2015-04-09 | 2015-04-09 | A kind of low-loss Direct-Buried Heating Pipeline fixed knot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151778A (en) * | 2015-04-09 | 2016-11-23 | 淮安四方保温管有限公司 | A kind of low-loss Direct-Buried Heating Pipeline fixed knot |
-
2015
- 2015-04-09 CN CN201520209862.5U patent/CN204512807U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151778A (en) * | 2015-04-09 | 2016-11-23 | 淮安四方保温管有限公司 | A kind of low-loss Direct-Buried Heating Pipeline fixed knot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150729 Termination date: 20200409 |